HF TRANSCEIVER
TS-450S
ALL MODE MULTI BANDER
INSTRUCTION MANUAL
Thank you for purchasing this new transceiver.
IMPORTANT
Please read this Instruction Manual carefully before placing
the transceiver in service.
SAVE THIS INSTRUCTION MANUAL.
The following explicit definitions apply in this manual:
Note: If disregarded, inconvenience only, no risk of equipment
damage or personal injury.
Caution: Equipment damage may occur, but not personal injury.
This instruction manual covers the following models:
HF TRANSCEIVER
- TS-450S WITH AUTOMATIC ANTENNA TUNER
- TS-450S WITHOUT AUTOMATIC ANTENNA TUNER
ALL MODE MULTI BANDER
- TS-690S WITHOUT AUTOMATIC ANTENNA TUNER
IMPORTANT: The 6 m (50 MHz) Band is not available in some
areas.
Notice to the user: One or more of the following statements
may be applicable to this equipment.
FCC WARNING
This equipment generates or uses radio frequency energy. Changes
or modifications to this equipment
may cause harmful interference unless the modifications are
expressly approved in the instruction
manual. The user could lose the authority to operate this
equipment if an unauthorized change or
modification is made.
Information to the digital device user required by the FCC:
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference in a residential installation. This equipment
generates, uses and can generate radio
frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that the interference will not occur
in a particular installation. If this equipment does cause
harmful interference to radio or television
reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
-- Consult the dealer for technical assistance.
CONTENTS
1. BEFORE OPERATION 6
2. SPECIFICATIONS AND ACCESSORIES
2-1. SPECIFICATIONS 7
2-2. ACCESSORIES 11
3. INSTALLATION AND CONNECTION
3-1. INSTALLATION 12
3-2. CONNECTION 12
4. OPERATION
4-1. OPERATING CONTROLS 16
4-2. INITIAL SETTING 25
Advanced Features 26
4-3. SSB OPERATION 28
4-4. CW OPERATION 30
4-5. FM OPERATION 32
4-6. AM OPERATION 34
4-7. FSK OPERATION 36
4-8. PACKET (AFSK) OPERATION 38
4-9. AUTOMATIC ANTENNA TUNER OPERATION 41
4-10. BASIC OPERATION MODE 43
4-11. OTHER OPERATIONS
4-11-1. Beep 44
4-11-2. Audible Mode Announcement 44
4-11-3. Alarm Function 44
4-11-4. Frequency Step 45
4-11-5. Amateur Radio Band Selection 45
4-11-6. Direct Keyboard Frequency Entry 45
4-11-7. Dual Digital VFOs 47
4-11-8. SPLIT Frequency Operation 48
4-11-9. Interference Reduction 49
4-11-10. Noise Blanker 51
4-11-11. VOX Operation 52
4-11-12. RIT Control 53
4-11-13. XIT Control 53
4-11-14. AF Function 53
4-11-15. Power on Function selection 54
4-12. MEMORY 56
4-13. SCAN 64
4-14. REPEATER OPERATION 69
4-15. OPERATION WITH A PERSONAL COMPUTER 70
4-16. VOICE SYNTHESIZER 70
4-17. DIGITAL MODULATION FUNCTION 71
4-18. OPERATION WITH THE LINEAR AMPLIFIER 73
4-19. EXTERNAL ANTENNA TUNER OPERATION 74
4-20 DATA TRANSFER FUNCTION 76
5. CIRCUIT DESCRIPTION
5-1. BLOCK DIAGRAM 263
5-2. CIRCUIT DIAGRAM 264
6. MAINTENANCE AND ADJUSTMENTS
6-1. GENERAL INFORMATION 78
6-2. SERVICE 78
6-3. CLEANING 78
6-4 IN CASE OF DIFFICULTY 79
6-5. ORDERING SPARE PARTS 80
6-6. ADJUSTMENTS 81
7. OPTIONAL ACCESSORIES
7-1. FILTER INSTALLATION 83
7-2. VS-2 VOICE SYNTHESIZER INSTALLATION 84
7-3. TU-8 TONE UNIT INSTALLATION 84
7-4. SO-2 TCXO UNIT INSTALLATION 85
7-5. AT-450 AUTOMATIC ANTENNA TUNER INSTALLATION 86
7-6. OTHER ACCESSORIES 87
8. REFERENCE 89
Page 6
1. WARNING BEFORE OPERATION
TO PREVENT ELECTRIC SHOCK, FIRE AND OTHER INJURY, PLEASE
NOTE THE FOLLOWING:
Do not place this unit, where it will be exposed to direct
sunlight or close to heating appliances.
Do not place anything on top of the cabinet.
To ensure good ventilation, do not put anything on top of
the cabinet and allow at least 15 cm (6 inches)
of space behind the unit.
Do not place the unit in areas of excessive dust, high humidity
or on unstable surfaces.
Do not drop pieces of metal, needles, coins and other electrically
conductive materials into the unit.
CLEANING
1. Turn the power off, before cleaning the unit.
2. Do not use any type of abrasive pad, thinner, benzine
or any substances which may damage the unit.
3. Wipe the front panel and other exterior surfaces of the
unit with a soft dry cloth or a soft cloth lightly
moistened with water.
Page 7
2. SPECIFICATIONS AND ACCESSORIES
2-1. SPECIFICATIONS: TS-450S
General:
Mode: J3E(LSB, USB), A1A(CW), A3E(AM), F3E(FM), F1A(FSK)
Memory channels: 100
Antenna impedance: 50 ohms; With AT-450 Antenna Tuner 20-150
ohms
Power requirement: 12 to 16 VDC (13.8 VDC reference)
Grounding: Negative
Current drain: Receive mode with no input signal - 2A
Transmit mode - 20.5A
Operating temperature: -10C to +50C (+14F to +122F)
Frequency stability: Less than +/-10 PPM
Frequency accuracy: Less than +/-10 PPM
Dimensions - [W x H x D]: 270 X 96 X 305 mm (10-5/8"
X 3-25/32" X 12-1/64")
- (Projections included): (280 X 107 X 340 mm) (11-1/32"
X 4-1/4" X 13-25/64")
Weight - With AT unit: 7.5 kg (16.5 lb)
- Without AT unit: 6.3 kg (13.9 lb)
Transmitter:
Frequency range:
160m band 1.8 to 2.0 MHz
80m band 3.5 to 4.0 MHz
40m band 7.0 to 7.3 MHz
30m band 10.1 to 10.15 MHz
20m band 14.0 to 14.35 MHz
17m band 18.068 to 18.168 MHz
15m band 21.0 to 21.45 MHz
12m band 24.89 to 24.99 MHz
10m band 28.0 to 29.7 MHz
Output power (Without AT) 1.9 - 28 MHz: SSB, CW, FSK, FM:
MAX 100W, Min less than 20W;
- AM: MAX 40W, MIN Less than 10W
Modulation - SSB: Balanced modulation;
- FM: Reactance modulation;
- AM: Low level modulation
Spurious radiation: Less than -50dB
Carrier suppression (with 1.5 kHz reference): More than 40
dB
Page 8
Transmitter:
Unwanted sideband suppression (with 1.5 kHz reference): More
than 40 dB
Maximum frequency deviation (FM): Less than +/- 5 kHz
Frequency response (-6 dB): 400 to 2600 Hz
XIT variable range - 10 Hz step: More than +/- 1.1 kHz
- 20 Hz step: More than +/- 2.2 kHz
Microphone impedance: 600 ohms
Receiver:
Circuitry: Triple conversion superheterodyne
Frequency range: 500 kHz to 30 MHz
Intermediate frequency: 1st: 73.05 MHz, 2nd : 8.83 MHz, 3rd
: 455 kHz
Sensitivity
- SSB, CW, FSK (at 10 dB (S+N)/N): 500 kHz - 1.62 MHz*: Less
than 4 uV
: *1.62MHz - 21.5 MHz: Less than 0.2 uV
: 21.5 MHz - 30 MHz: Less than 0.13 uV
- AM (at 10 dB (S+N)/N): 500 kHz - 1.62 MHz*: Less than 32
uV
: *1.62 MHz -21.5 MHz: Less than 2 uV
: 21.5 MHz - 30 MHz: Less than 1.3 uV
- FM (at 12 dB SINAD): 28 MHz - 30 MHz: Less than 0.25 uV
Selectivity: SSB, CW, FSK: - 6 dB: More than 2.2 kHz, - 60
dB: Less than 4.4 kHz
AM: -6 dB: More than 5 kHz, -50 dB: Less than 18 kHz
FM -6 dB: More than 12 kHz, -50 dB: Less than 25 kHz
Image ratio: More than 70 dB
1st IF rejection: More than 70 dB
Notch filter attenuation: More than 20 dB
RIT variable range: 10 Hz step - More than +/- 1.1 kHz; 20
Hz step - More than +/- 2.2 kHz
Squelch sensitivity: SSB, CW, FSK, AM: 500 kHz - 1.62 MHz*:
Less than 20 uV; *1.62 MHz- 30 MHz -
Less than 2 uV; FM: 28 MHz - 30 MHz - Less than 0.25 uV
Output: 1.5 W across 8 ohms load (10% distortion)
Output load impedance: 8 ohms
Notes:
1. Circuit and ratings are subject to change without notice
due to advancements in technology.
2. Remember to keep the transmit output power within the power
limitations of your license.
3. *The U.S.A. version is 1.705 MHz.
Pages 9-10
Specs for TS-690S, not included here.
Page 11
2-2. ACCESSORIES
Unpack your TS-450S/690S carefully and confirm that it is
supplied with the following accessories.
Dynamic microphone T91-0352-15 1 ea.
DIN plug (7-pin) E07-0751-05 1 ea.
DIN plug (13-pin) E07-1351-05 1 ea.
DC power cable assembly E30-3035-05 1 ea.
Calibration cable E31-2154-05 1 ea.
Fuse (25A) F51-0011-05 1 ea.
Fuse (4A) F06-4029-05 1 ea.
Knob K23-0712-04 1 ea.
External control Instruction Manual B62-0099-XX 1 copy
Instruction Manual B62-0095-XX 1 copy
Warranty card (U.S.A., Canada and Europe version only) 1 ea.
After unpacking Shipping container:
Save the boxes and packing in the event your unit needs to
be transported for remote operation,
maintenance, or service.
Page 12
3. INSTALLATION AND CONNECTION
3-1. INSTALLATION
3-1-1. Fixed Station
ú Front Bail
By extending the front bail, the front panel can be elevated
for operating convenience.
CAUTION: Do not carry the transceiver by holding the bail.
Grasp the handle on the right side to carry
the transceiver.
3-1-2. Mobile Installations
Secure the transceiver with the optional mounting bracket.
For the installation instructions, see the
MB-430 Instruction Manual.
3-2. CONNECTION
3-2-1. Fixed Station
The TS-450S/690S requires more than 20.5 A at 13.8 VDC when
transmitting at full power. Use the
PS-53 power supply for fixed station operation.
CAUTION
1. Before connecting the power supply, switch the transceiver
and the DC power supply off.
2. Do not plug the DC power supply into the AC outlet until
all the connections have been made.
A. sketch of Rear Panel
Page 13
(1) Antenna
Caution: Protect your equipment - Use a LIGHTNING ARRESTER.
The type of antenna that is used will greatly affect the
performance of the transceiver. Use a properly
adjusted antenna, of good quality, to enable your transceiver
to perform at its best. The antenna input
impedance is 50 ohms. Use 50-ohm coaxial cable such as 5D-2V
or RG-213/U (RG-8A/U) for this
connection. If the antenna is far from the transceiver the
use of low loss coaxial cable, such as 5D-2V or
RG-213/U (RG-8A/U) are recommended. Match the impedance of
the coaxial cable and that of the
antenna so that the SWR is less than 1.5 to 1. The protection
circuit in the transceiver will activate if the
SWR is particularly poor (greater than 3 to 1). High SWR values
will cause the transmitter output to drop,
and may lead to TVI or BCI reports.
(2) Grounding
Warning: Never use a gas pipe or electrical conduit pipe.
Notes:
1. A ground connection that is a 1/4 wavelength or its multiple
may provide a good DC ground, but will
not provide a good RF ground.
2. A city water pipe cannot be used as a good ground in some
cases.
Making a good ground connection is important for preventing
dangers such as electric shock and for
emitting a high quality signal with minimum spurious radiation.
Bury a commercially available ground rod
or copper plate under the ground and connect it to the GND
terminal. A thick wire, cut as short as
possible, should be used for the connection. To make a good
earth connection, connect the GND
terminal to a grounded metal water pipe.
(3) External speaker
The TS-450S/690S includes a built-in speaker. If you would
like to use an external speaker, such as the
SP-23, it may be connected to the EXT SP jack on the rear
of the transceiver. The speaker may be any
good 8 ohm permanent magnet type speaker. The diameter should
be at least 4 inches for good audio
quality. If you plan on using a speaker other than the SP-23
it should be equipped with a miniature phone
jack plug. (diameter 3.5 mm)
(4) Key connection
Your key should be connected as illustrated in the figure
below. When using an electronic keyer, make
sure that the polarity is set for positive or direct. Always
use shielded line from the key to transceiver.
(diameter 6.0 mm)
sketch showing To use external straight key
Note: Check the polarity of the plug when you use an electronic
keyer.
Page 14
sketch Front Panel
(1) Headphones
Any low-impedance (4-16 ohms) headphone may be used with
the transceiver. Connect the headphones
to the front panel PHONES jack. (diameter 6.0 mm). The optional
HS-5 or HS-6 headphones are best
suited for use with the transceiver. Stereo type headphones
can also be used.
(2) Microphones
Any microphone with an impedance to 600 ohms may be used
with this transceiver. The KENWOOD
microphones MC-43S (hand held), MC-60A, MC-80, MC-85 (table-top
type) are recommended.
Page 15
3-2-2. Mobile Installations
Install in the safest and most accessible location.
A. Battery Connections
Connect the power cable directly to the battery terminals.
Use of the cigarette lighter socket will lead to
poor connection, and will result in poor performance. Pay
close attention to the polarity of the cables
when connecting them to the battery.
Cautions:
1. Before installing the power cable, be sure to remove the
negative lead from the battery for safety.
2. After installation and wiring, be sure to double check
for correct installation before reconnecting the
negative lead to the battery terminal.
3. If the fuse opens, be sure to check that each conductor
has not been damaged by short circuiting, etc.
Then replace with a new fuse of the same rating.
4. After completing the wiring, wrap the fuse holder with
heat resistant tape to protect against heat and
moisture.
5. Do not remove the fuse even if the power cable is too long.
B. Ignition Noise
This transceiver has been designed to suppress ignition noise;
however, if excessive noise is present, it
may be necessary to use suppressor spark plugs (with resistors).
[sketch of car installation]
C. Grounding for mobile installation
When the transceiver is installed in a car, use a short whip
antenna.
Grounding is very important when using a whip antenna. If
the grounding is poor, a good SWR value will
not be obtained.
Some cars have plastic bumpers. For such cars, ground the
antenna mount to the body.
Page 16
4. OPERATION
4-1. OPERATING CONTROLS
4-1-1. Front Panel [sketch]
Note: All segments on the Display Panel and Indicators are
shown ON for this explanation.
[left side, working down from top]
1. POWER switch: Press to turn the power ON or OFF.
Note: When switching on the power after a prolonged period
of non-use, several seconds may pass
before indicators appear on the display. This is normal operation.
2. VOX/OFF switch: VOX (Voice Operated Switch) operation
is possible in the SSB, AM or FM modes.
Break-in operation is possible in CW operation. To activate
the VOX circuitry place the VOX switch ON
(in).
3. ATT/OFF switch: When on (in), the receive signal is attenuated
by about 20 dB.
4. REC/SEND switch: This switch is used when you want to
manually control transmit or receive.
SEND: Places the transceiver into transmit.
REC : Places the transceiver into receive.
5. THRU/AUTO switch:
THRU : The auto antenna tuner is not used in transmit.
AUTO : The auto antenna tuner is used in transmit.
6. PHONES jack: Output terminal for headphones.
7. MICjack: Microphone connection.
[sketch of pins in mic connector]
Page 17
[indicators across the top, left to right]
8. Filter indicators: Indicates which filters have been selected.
9. Meter: The signal strength is displayed during reception
(S meter), and the transmitter power is
displayed during transmission (power meter). When the RX M
or TX M key is pressed, the AF level (dB),
SWR, and ALC values are displayed. A peak hold function is
also incorporated. (Please refer to Section
4-11-15.)
Note: One or two segments of the S meter may light when there
is no signal, due to atmospheric noise.
10. M.CH (Memory channel) indicator: Turns ON during Memory
Channel operation.
M.SCR (Memory scroll) indicator: Lights when the M.IN key
is pressed. When the memory scroll function
is active you can review the contents of the memory channels
without a loss of the incoming receive
frequency.
PRG (Program) indicator: Lights during selection or operation
on memory channels 90 to 99.
SCAN indicator: Turns ON during scanning.
FINE indicator: Indicates the FINE tuning function has been
selected.
F.LOCK indicator: Lights when the F.LOCK key is ON.
AIP (Advanced Intercept Point) indicator: Lights when the
AIP switch is ON.
NOTCH indicator: Lights when the NOTCH switch is ON.
NB1/2 indicator: The selected noise blanker operation is displayed.
SPLIT indicator: Turns ON during split operation.
T indicator: Indicates the TONE function has been selected.
RX/TX ABM indicator: The state of the VFO or memory operating
during transmission and reception is
displayed.
11. Frequency display: Indicates the operating frequency.
The 10 Hz digit may be suppressed. (Please
refer to Section 4-11-15.)
12. Memory Channel number display: Memory Channel Number
is displayed.
13. Memory Channel Lockout Indicator: The display indicates
the Memory Channel currently in the
display will be skipped during Memory Channel scan.
14.
LSB indicator: Indicates LSB has been selected.
USB indicator: Indicates USB has been selected.
CW indicator: Indicates CW has been selected.
R indicator: Indicates CW/FSK-R(Reverse) has been selected.
FSK indicator: Indicates FSK has been selected.
FM indicator: Indicates FM has been selected.
AM indicator: Indicates AM has been selected.
PROC indicator: Indicates the PROCESSOR is ON.
FAST indicator: Lights when the AGC time constant is fast.
SLOW indicator: Lights when the AGC time constant is slow.
RIT indicator: Turns ON when using RIT.
XIT indicator: Turns ON when using XIT.
1 MHz indicator: Lights when the 1 MHz key is ON.
15. ON AIR indicator: Lights during transmit.
16. AT TUNE (Antenna Tuner) indicator: Lights to show that
the automatic antenna tuner is in operation.
Do not continue until it goes off.
17. RIT/XIT frequency display: Shows the amount of RIT/XIT
offset to the nearest 100 Hz. Minus "-"
appears in the display when the RIT/XIT offset is below the
transmit/receive frequency.
Shows the scan speed during scanning..Page 18
[sketch of numeric keypad and keys directly below it]
18. Numeric keypad: When used in conjunction with the ENT
key, the keypad is used to directly enter a
frequency. The keypad also has the following functions:
8.83 FILTER key (1): Selects the desired 8.83MHz filter regardless
of mode.
455 FILTER key (2): Selects the desired 455kHz filter regardless
of mode.
RX M key (3): When this key is pressed during reception,
the dB display turns on and off. The AF level
is displayed on the scale (dB), independent from the AF volume
control setting.
AT TUNE key (4): When the THRU/AUTO switch is placed in the
AUTO position, the automatic tuner will
be engaged and the tuner will try to match the antenna.
TONE key (5): Press this key to turn the repeater Sub audible
tone encoder on.
TX M key (6): The meter indication during transmission can
be switched as follows: ALC / SWR / No
indicator / back to ALC
Delta F key (7): Press this key while pressing TF SET key
to display the offset from the current receiving
frequency.
FINE key (8): One turn of the tuning knob is made equivalent
to 1kHz (1Hz step) in the SSB, CW, and
FSK modes to facilitate tuning. When the key is pressed again,
the original tuning rate of 10kHz per
revolution returns.
REV key (9): The BFO uses USB for normal CW reception. With
this key, reception becomes possible
on LSB. The BFO uses LSB for normal FSK operation. With this
key, reception becomes possible on
USB.
CLR (Clear) key (*): Used when reentering memory channel
data, erasing a memory channel, clearing
scan, or when specifying the channels that will be skipped
during scan operations.
ENT (Enter) key (#): Used to directly enter a frequency from
the numeric keypad.
[3 keys underneath, from left]:
M.IN key: Used to enter data into a memory channel.
M to VFO key: Used to transfer a frequency from memory to
the VFO.
SCAN key: Pressed during VFO operation will initiate program
scan, and pressed during memory
operation will initiate memory scan.
Page 19
MODE keys [to left of large tuning knob, from top down]:
These keys are used to select the desired mode of operation.
When a MODE key is pressed the first
character of that mode will be sounded in Morse code through
the internal speaker.
LSB/USB key: Press the LSB/USB key to alternate between LSB
and USB mode.
CW/FSK key: Press the CW/FSK key to alternate between CW
and FSK mode.
FM/AM key: Press the FM/AM key to alternate between FM and
AM mode.
F.LOCK key: The selected dial frequency and mode are locked.
Note: When the F.LOCK key is on, the TF-SET, FILTERkeys, METER,
VOICE keys, NOTCH,
AGC, NB, PROC., AIP, RIT, XIT and RIT/XIT control are still
active.
VOICE key: Press this key to activate the optional voice
synthesizer unit VS-2.
TUNING knob (VFO): Rotate the knob to select the desired
frequency.
The dial drag is adjustable by holding the outside knob and
turning the inside knob clockwise to
increase drag, and counterclockwise to decrease drag.
FUNCTION keys [to right of tuning knob, from top down, left
to right on each row]:
TF-SET key: Depressing this key will allow you to rapidly
set or check the transmit frequency, during
SPLIT and RIT / XIT operations, without the need of actually
transmitting.
A/B key: This key switches between VFO A or VFO B.
M/V key: This key switches between the VFO or memory.
SPLIT key: Press this key for split operation.
RIT key: Press to turn the RIT ON or OFF.
A=B key: Equalizes the frequencies, modes and filter selections
of VFO A and VFO B.
XIT key: Press to turn the XIT ON or OFF.
1 MHz key: This key causes the UP/DOWN switches to change
the operating frequency in 1 MHz steps
or only select amateur bands. When the 1 MHz step position
is selected, the 1 MHz indicator will light.
When the 1 MHz key has been pressed, the frequency is changed
in 1 MHz steps regardless of
the amateur band.
The frequency step can be changed to 500 kHz. (See 4-11-15.
Function setting when the power
is switched on.)
UP/DOWN switches [down is left-hand, up is right-hand]: Pressing
the UP switch increases the
frequency, and pressing the DOWN switch decreases it.
Page 20
[far right side of front panel, small buttons, top to bottom]:
AIP (Advanced Intercept Point) key: Use AIP when good signal
reception can not be obtained. When
switched on, it reduces interference from strong signals.
When the frequency falls below 9.5MHz, AIP turns on automatically.
AIP can be turned off on
individual bands below 9.5MHz by pressing the AIP key.
Note: When AIP is on, the sensitivity of the receiver is reduced
by about 10 dB in the range 100
kHz to 21.5 M Hz, and by about 15 dB in the range of above
21.5 MHz.
NOTCH key: When this key is ON, the notch filter is activated.
Note: This switch is disabled during FM operation.
AGC key: Pressing this key toggles the AGC time constant
between SLOW and FAST.
FAST : For CW, FSK and data communications.
SLOW: For SSB and AM.
Note: This switch is disabled during FM operation.
NB 1/2 key: NB1: For pulse type noise, such as that generated
by automotive ignition systems, select
NB 1.
NB 1 will not help to eliminate atmospheric or line noises,
only pulse type noise.
- NB 2: The NB2 only works on woodpecker type noise.
Noise blanker 2 is used for long duration pulse noise, like
the "woodpecker". To reduce
"woodpecker" radar noise interference, select NB
2 (NB 2's effectiveness depends on the specific type of
interference). If you use NB 2 for short duration pulse noise,
the receive signal may become distorted,
making it difficult to hear.
Unfortunately no noise blanker can remove all different types
of interference; but the two noise
blankers that have been provided in the TS-450S/690S are effective
in most cases.
If there is no "woodpecker" present, turn NB2 off.
PROC key: Effective transmit power output will increase when
the PROC is turned ON during SSB
mode operations.
[knobs, top row, left to right]:
M.CH/VFO CH control: This control is used to select the desired
memory channel during Memory
Channel Operation.
This control is also used to change the frequency in 10 kHz
steps during VFO operations.
The control is also used to select the desired power-on function
you wish to change. See section
4-11-15.
NOTCH control [inside knob]: The NOTCH function is used to
reduce or eliminate heterodyne, or CW
type signals. The NOTCH filter will not be effective against
SSB, AM or FM type signals.
SQL control [outside knob]: This control is used to eliminate
atmospheric noise, and receiver static noise
during no signal periods. Slowly rotate the control clockwise
to the point where the ambient noise just
disappears, and the speaker shuts off. This point is known
as the squelch threshold point. Now you will
only hear output from the speaker when an incoming signal
is present. For weak signal reception this
control should be fully counterclockwise.
Page 21
[middle row of knobs, left to right]:
RIT/XIT control [inside knob]: RIT (Receiver Incremental
Tuning) The RIT control shifts the receiver
frequency without changing the transmit frequency.
When the RIT switch is ON, the RIT indicator will light, and
the receive frequency can be
adjusted by using the RIT control.
Note: When the RIT is ON the transmit frequency may be different
from the receive frequency.
For normal operation leave the RIT switch OFF. It should be
used only when necessary.
The scan speed can be changed during scanning with the RIT
control.
XIT (Transmitter Incremental Tuning): XIT is very similar
to RIT. XIT is only active in the transmit mode.
By using the XIT function it is possible to offset the transmit
frequency without the normal loss of receiver
audio that is experienced when using the SPLIT function. When
RIT/XIT is off, the RIT/XIT display does
not light.
The RIT/XIT step size is either 10 Hz or 20 Hz. Please refer
to Section 4-11-15 for information
on how to select the desired step size.
IF SHIFT control [outside of knob]: Interference can be eliminated
and the receive audio quality can be
adjusted.
Note: This control is disabled during FM and AM operation.
AF gain control [inside knob]: Turn the knob to increase
or decrease the volume.
Clockwise rotation increases the volume and counterclockwise
rotation decreases the volume.
Note: The output level of the "Beep", "Sidetone"
and VS-2 are not affected by adjusting of the
AF gain control.
RF gain control [outside of knob]: This control adjusts the
gain of the receiver high-frequency amplifier
section.
For normal receiver performance, and maximum gain, this control
should be all the way to the
right. If you are having trouble copying the desired signal
make a note of the station's peak S-meter
reading. Then, adjust the RF gain control left, so that the
meter is stationary at this level. Now, all signals
that were less than the desired signal will be attenuated,
such as static noise, etc., making reception
easier.
If the incoming signal pegs the S-meter you can also reduce
the receiver gain by moving the RF
gain control to the left. The S-meter will always advance
up-scale as the RF gain control is moved, to
indicate that the gain has been reduced.
Simultaneous use of the RF gain control and AGC key: If a
strong signal (such as a local station)
appears in the vicinity of the intended receive signal, the
S-meter may show unusual deflection due to
the AGC voltage developed from the strong disturbing signal.
If this occurs, move the RF gain control to
the left so the meter pointer remains at about the original
deflection peak and select FAST AGC.
This will reduce the unwanted AGC voltage and permit clear
reception.
Note: Turn the control fully clockwise in the FM mode.
Page 22
[4 small knobs at bottom right, left to right]:
DELAY control: This control adjusts the delay time in VOX
operation. Set it to an appropriate position.
When the DELAY control is turned fully counterclockwise in
CW operation, it is like a full break-in
operation.
CAR(Carrier level) control: Used to adjust carrier level
during CW, AM, FM
and FSK.
PWR (Power) control: Power can be controlled in all modes.
Power is increased by turning the control
clockwise. Keep the transmit power within the output power
limits of your license.
MIC gain control: Microphone gain can be adjusted during
SSB and AM operations. Gain is increased by
turning the control clockwise.
Top of case (TS-690S only) - sketch shows Antenna Select
switch (HF or 50 MHz).
Left side of case [back to front]:
VOX control: This control adjusts the sensitivity of the
VOX amplifier. Adjust this control for your
personal preference.
ANTI control: VOX operations are sometimes difficult with
high speaker volume control settings. The
ANTI control is used to reduce the tendency of the VOX to
activate from inputs from the speaker. The
ANTI control is not active when headphones are connected.
ACC-1 connector: The optional DSP-100 or the optional IF-232C
is connected here.
Microphone:
UP/DWN (Up/Down) switches: These switches are used to step
the VFO frequency or memory channel
up and down. The frequency will change continuously if the
switches are pressed and held.
PTT (Push To Talk) switch: The transceiver will be placed
into Transmit whenever this switch is pressed.
Page 23
4-1-2. Rear Panel [left to right, across top and then across
bottom]:
ANTENNA 1 connector: This connector should be attached to
a suitable antenna for transmitting and
receiving. The antenna cable should be 50-ohm coax, terminated
with a PL-259 connector. For the
TS-690S, the antennas for HF to 50 MHz can be plugged into
this connector.
ANTENNA 2 connector (TS-690S only): This connector should
be attached to a suitable antenna for
transmitting and receiving. The antenna cable should be 50-ohm
coax, terminated with a PL-259
connector. For the TS-690S, an antenna for the 50MHz band
can be connected to this connector.
GND (Ground) terminal: To prevent electric shock, as well
as RFI and BCI, connect the transceiver to a
good earth ground.
ACC3 connector: The control cable for the external antenna
tuner (AT-300) is connected here.
DC power connector: This is used to connect the DC power
supply.
[bottom row]:
DSP 3 connector: The optional DSP-100 is connected here.
DSP 2 connector: The optional DSP-100 is connected here.
DSP 1 connector: The optional DSP-100 is connected here.
REMOTE connector: This connector is used when a linear amplifier
is used.
EXT SP (External speaker) jack: This jack is for connection
of an external
speaker.
CW KEY jack: Using shielded line, connect a 6.0mm diameter
phone plug to this jack for CW operation.
When connecting a paddle type key to the key jack use a 6.0mm
diameter plug. Open-terminal voltage is
approximately +7 VDC.
ACC 2 connector: Terminal numbers and their applications
are as follows:
Page 24
ACC2 pin assignments
[table headed Pin number; Symbol; Use]
1; NC; No connection
2; RTK; RTTY terminal
3; ANO; Receiver audio at a fixed level independent of AF
gain control setting. Output voltage: 300
mV/4.7kOhm or more at high input level.
4; GND; Ground (The shielded wire of the audio output terminal
is connected here.)
5; PSQ; This pin is used for connecting a TNC (Terminal Node
Controller) for use with packet radio. It is
the Squelch Control terminal and will not allow packet communications
while squelch is off.
6; NC; No connection
7; NC; No connection
8; GND; Ground
9; PKS; When this pin is grounded, the microphone input is
automatically shut off and the transmitter is
keyed.
10; NC; No connection
11; PKD; This is the input pin from the terminal unit. The
input level is 20 mV or more.
12; GND; Ground (The shielded wire of the audio output terminal
is connected here.)
13; SS; Standby terminal. Grounding transmits.
Page 25
4-2. INITIAL SETTING
Prior to operation ensure the following switches and controls
are set as indicated in the figure below:
NOTE: If the power is turned on with the REC/SEND switch
on, transmission and reception are not
possible.
1. Ensure the POWER switch is OFF (out).
2. An antenna must be connected. For the TS-690S, set the
antenna changeover switch correctly.
Caution: Never transmit without an antenna connected.
3. A ground must be connected.
4. Attach the DC power cable here [far right of rear panel].
5. Ensure the front panel controls and switches are set as
shown in the figures above.
[4 small switches at left, all in the OFF position;
NOTCH and SQL controls both fully counterclockwise;
RIT/XIT and IF SHIFT both at the centre (zero) position;
AF control fully counterclockwise;
RF control fully clockwise;
DELAY, PWR, CAR and MIC controls fully counterclockwise.]
Page 26
Advanced Features
Advanced receiver functions [moves left to right, selectively,
across front panel]:
ATT Switch: This switch allows attenuation of the input signal
by 20dB. Interference by a strong signal
near the receive frequency can be reduced.
FINE key: Makes one turn of the tuning knob equal 1 kHz (AM,
FM: 10 kHz) step to facilitate tuning.
ENT key: When this key is pressed, the desired frequency
can be entered directly with the numeric
keys.
RIT key: Press this key to turn on the RIT.
AIP key: When on, interference from strong signals is reduced.
NOTCH key: Press this key to turn on the NOTCH.
AGC key: Press this key to change the AGC time constant.
NB 1/2 key: Each press of this key changes the noise blanker
from NB1 to NB2 to OFF and back to
NB1.
NB1 - Effective in reducing pulse noise (such as ignition
noise).
NB2 - Effective in reducing long duration pulse noise (such
as woodpecker noise).
M.CH/VFO CH control: The frequency can be advanced quickly
in 10 kHz steps. The frequency step
can be changed to 1 kHz, 2 kHz, or 5 kHz. See page 55.
NOTCH control: Beat interference (continuous beep) can be
attenuated. Press the NOTCH key, make
sure the NOTCH indicator has lit, then turn this knob to minimize
the beat.
SQL Control: The noise heard when there is no signal can
be eliminated. If this knob is turned too far,
weak signals cannot be heard.
RIT control: The receive frequency can be varied without
changing the transmit frequency.
IF SHIFT control: The apparent IF filter pass bandwidth is
changed without changing the receive band
width or receive frequency.
- Interference caused by an adjacent channel can be reduced.
- The receive audio can be subjected to high-cut or low-cut
filtering.
RF gain control: Interference by a strong signal near the
receive frequency can be reduced.
Page 27
Advanced transmitter functions [left to right, selectively,
across front panel]:
VOX switch: When this switch is set to VOX (in), transmission
and reception are switched automatically
by voice in SSB, FM, and AM modes.
Adjust the VOX gain on the left side according to the microphone
in use.
When this switch is set to VOX, transmission is selected automatically
when the key is down, and
reception is selected automatically when the key is up.
AUTO/THRU switch, AT TUNE key: Press this key to operate
the automatic antenna tuner, if the unit is
installed.
TX M key: Press this key to select the SWR meter or ALC meter
or OFF.
XIT key: Press this key to turn on the XIT.
PROC key: Use this function to increase the average talk
power during transmission. Adjust it with the
MIC gain control so that it does not exceed the ALC range
when the speech processor is used.
M.CH/VFO CH control: The frequency can be advanced quickly
in 10 kHz steps. The frequency step
can be changed to 1 kHz, 2 kHz, or 5 kHz. See page 55.
XIT Control: The transmit frequency can be varied without
changing the receive frequency.
DELAY control: When VOX is used, the time delay before returning
to receive from transmit can be
varied. Set the control to give the desired timing.
PWR control: Transmission power can be varied. The maximum
power is obtained by turning the control
fully clockwise.
Page 28
4-3. SSB OPERATION
RECEIVING
1. Turn on the DC power supply and then turn the transceiver's
power switch ON.
2. A frequency will appear in the display.
3. Press the UP/DOWN switches to select the desired band.
When the 1 MHz step position is selected,
the 1 MHz indicator will light.
4. Select USB or LSB with the MODE key. The automatic switchover
point on the transceiver is 9.5
MHz.
5. Turn the AF gain control clockwise until a signal or noise
is heard.
6. Rotate the TUNING knob and select an open channel.
Page 29
TRANSMISSION
1. Connect a microphone to the MIC jack.
2. Turn on the DC power supply and then turn the transceivers
power switch ON.
3. A frequency will appear in the display.
4. Select USB or LSB with the MODE key. The automatic switchover
point on the transceiver is 9.5
MHz.
5. Select the desired frequency.
6. Press the TX.M key until the ALC meter lights.
7. Turn the PWR control fully clockwise.
8. Press the microphone PTT switch, or set the REC/SEND switch
to SEND. Before transmitting check
the frequency for activity so that you do not interrupt another
QSO.
9. Speak into the microphone and adjust the MIC gain control
so that the meter deflection does not
exceed the ALC zone on voice peaks.
Note: Speak into the microphone, holding the microphone about
5 cm(6 inches) away from your mouth.
Close talking or talking too loudly may reduce transmission
clarity or spread the side bands too much.
Page 30
4-4. CW OPERATION
RECEIVING
1. Turn on the DC power supply and then turn the transceivers
power switch ON.
2. A frequency will appear in the display.
3. Press the UP/DOWN switches to select the desired frequency
band. When the 1 MHz step position is
selected, the 1 MHz indicator will light.
4. Select CW with the MODE key.
5. Turn the AF gain control clockwise until a signal or noise
is heard.
6. Rotate the TUNING knob and select an open channel.
CW Reverse
The BFO frequency changes from USB to LSB if "9"
(REV) on the numeric keypad is pressed during CW
reception. This allows the following:
1. Beat-frequency interference can be reduced.
2. The beat tone changes from low to high when the tuning
control is turned clockwise (the
receive frequency goes high), improving operability.
If the receive frequency is the same (zero-in state) as the
transmit frequency of the destination station,
the receive and transmit tones do not change even if the BFO
frequency is in the reverse mode.
Page 31
TRANSMISSION
1. Connect a key or electronic keyer to the rear panel CW
KEY jack.
2. Turn on the DC power supply and then turn the transceivers
power switch ON.
3. A frequency will appear in the display.
4. Select CW with the MODE key.
5. Select the desired frequency.
6. Press the TX.M key until the ALC meter lights.
7. Turn the PWR control fully clockwise.
8. Set the VOX/OFF switch to VOX (in).
9. Press the CW key. The ON AIR indicator lights and the
ALC meter pointer deflects. Before
transmitting check the frequency for activity so that you
do not interrupt another QSO.
10. Adjust the CAR control until the meter deflection is
within the ALC zone. Reception is selected
automatically when the key is up.
11. The time delay before returning to reception from transmission
can be varied. Set the control to give
the desired timing.
Zero Beating:
Matching the signal from the other transceiver and the signal
from this transceiver in CW mode is called
zero beating. The transceiver can zero in the other transceiver
as follows:
1. Turn VOX off. Press the key down. The side tone will be
heard from the speaker.
2. Adjust the tuning knob so that the audio tone from the
other transceiver is equal to the side tone
frequency (800 Hz) generated when you depress the key. When
they match you are zero beat.
Page 32
4-5. FM OPERATION
RECEIVING
1. Turn on the DC power supply and then turn the transceiver's
power switch ON.
2. A frequency will appear in the display.
3. Press the UP/DOWN switches to select the desired frequency
within the 28 MHz amateur radio band.
When the 1 MHz step position is selected, the 1 MHz indicator
will light.
4. Select FM with the MODE key.
5. Make sure "THRU" on the 8.83MHz filter display
is on.
6. Make sure "12k" on the 455kHz filter display
is on.
7. Turn the AF gain control clockwise until a signal or noise
is heard.
8. To eliminate the no signal noise turn the SQL control
clockwise to the point the background noise just
disappears. This point is known as the squelch threshold
point.
9. Rotate the TUNING knob and select an open channel.
Page 33
TRANSMISSION
1. Connect a microphone to the MIC jack.
2. Turn on the DC power supply and then turn the transceiver's
power switch ON.
3. A frequency will appear in the display.
4. Select the desired frequency within the 28 MHz amateur
radio band.
5. Select FM with the MODE key.
6. Press the TX.M key until the ALC meter lights.
7. Turn the PWR control fully clockwise.
8. Press the microphone PTT switch, or set the REC/SEND switch
to SEND (in). Before transmitting
check the frequency for activity so that you do not interrupt
another QSO.
9. Adjust the CAR control so that the meter deflection does
not exceed the ALC zone. [about 0 to 8 on
the meter].
Speak into the microphone.
Note: Speak into the microphone, holding the microphone about
5 cm (6 inches) away from your mouth.
Close talking or talking too loudly may reduce transmission
clarity or spread the side bands too much.
Page 34
4-6. AM OPERATION
RECEIVING
1. Turn on the DC power supply and then turn the transceiver's
power switch ON.
2. A frequency will appear in the display.
3. Press the UP/DOWN switches to select the desired frequency
band. When the 1 MHz step position is
selected, the 1 MHz indicator will light.
4. Select AM with the MODE key.
5. Make sure "6k" on the 8.83MHz filter display
is on.
6. Make sure "6k" on the 455kHz filter display
is on.
7. Turn the AF gain control clockwise until a signal or noise
is heard.
8. Rotate the TUNING knob and select an open channel.
Page 35
TRANSMISSION
1. Connect a microphone to the MIC jack.
2. Turn on the DC power supply and then turn the transceiver's
power switch ON.
3. A frequency will appear in the display.
4. Select the desired frequency.
5. Select AM with the MODE key.
6. Turn the PWR control fully clockwise.
7. Press the microphone PTT switch, or set the REC/SEND switch
to SEND (in).
Before transmitting check the frequency for activity so that
you do not interrupt another QSO.
8. Adjust the CAR control so that the meter indicates as
shown Fig.1. [up to about 5 on the PWR meter].
9. Speak into the microphone and adjust the MIC gain control
so that the meter indicates as shown Fig.2.
on voice peaks. [ about 8 on PWR meter]
Note: If the MIC gain control is advanced too far clockwise,
the transmit signal will become distorted.
Page 36
4-7. FSK OPERATION
RECEIVING
1. Connect the RTTY keyboard to the RTTY terminal on the
rear panel.
2. Turn on the DC power supply and then turn the transceiver's
power switch ON.
3. A frequency will appear in the display.
4. Press the UP/DOWN switches to select the desired frequency
band.
When the 1 MHz step position is selected, the 1 MHz indicator
will light.
5. Select FSK with the MODE key.
6. Turn the AF gain control clockwise until a signal or noise
is heard.
7. Rotate the TUNING knob and select an open channel.
The normal FSK receive tone is set to 2125 HZ (high). It
can be changed to 1275 HZ (low) if desired.
(Please refer to Section 4-11-15).
Page 37
TRANSMISSION
1. Connect the RTTY keyboard to the RTTY terminal on the
rear panel.
2. Turn on the DC power supply and then turn the transceiver's
power switch ON.
3. A frequency will appear in the display.
4. Select the desired frequency.
5. Select FSK with the MODE key.
6. Press the TX.M key until the ALC meter lights.
7. Turn the PWR control fully clockwise.
8. Set the REC/SEND switch to SEND, or key the transceiver
from the FSK terminal.
Before transmitting check the frequency for activity so that
you do not interrupt another QSO.
9. Adjust the CAR control so that the meter deflection is
within the ALC zone.
10. Operate the RTTY keyboard.
Set the REC/SEND switch to REC or unkey the transceiver from
the FSK terminal to return to the
receive mode.
The normal FSK shift width is set for 170 Hz. It can be changed
to 200, 425, or 850 Hz if desired.
(Please refer to Section 4-11-15).
Note: The transceiver and RTTY or TNC terminal unit should
use separate power supplies, in order to
prevent RFI (Radio Frequency Interference).
Page 38
4-8. PACKET (AFSK) OPERATION
RECEIVING
1. Connect the communication terminal signal line to the
ACC 2 connector on the rear.
2. Turn on the DC power supply and then turn the transceiver's
power switch ON.
3. A frequency will appear in the display.
4. Press the UP/DOWN switches to select the desired frequency
band.
When the 1 MHz step position is selected, the 1 MHz indicator
will light.
5. Select LSB or USB with the MODE key.
6. Turn the AF gain control clockwise until a signal or noise
is heard.
7. Rotate the TUNING knob and select an open channel.
Since AFSK normally uses SSB for 300 baud packet transmissions,
the AFSK signal is applied to the
MIC signal line. This makes packet use possible in both the
USB and LSB modes, but the frequency of
the signal that is actually transmitted is the display frequency
plus the modulation frequency in USB
mode, and the display frequency minus the modulation frequency
in LSB mode. Since various
modulation frequencies are used by different TNC's, you should
determine the correct operating
frequency, taking the AFSK frequency of the TNC that you are
using into consideration when performing
your calculations.
Page 39
TRANSMISSION
1. Connect the communication terminal signal line to the
ACC 2 connector on the rear.
2. Turn on the DC power supply and then turn the transceiver's
power switch ON.
3. A frequency will appear in the display.
4. Select the desired frequency.
5. Select LSB or USB with the MODE key.
6. Press the TX.M key until the ALC meter lights.
7. Turn the PWR control fully clockwise.
8. Enter a transmit command from the communication terminal
(generally, from the keyboard), and
adjust the MIC gain control so that the meter deflection is
within the ALC zone.
Before transmitting check the frequency for activity so that
you do not interrupt another QSO.
Note: The transceiver and RTTY or TNC terminal unit should
use separate power supplies, in order to
prevent RFI (Radio Frequency Interference).
Notes:
1. Follow the instructions contained in your terminal unit's
operating manual for the correct settings
before you start transmitting.
2. If the output of the terminal unit causes the ALC meter
to register above the recommended limits even
with the MIC gain control turned all the way down you should
reduce the output from the terminal unit.
Excessive signal levels can cause distortion! If the terminal
unit output level is fixed you should add a
potentiometer between the transceiver and the terminal unit.
(Refer to Section 6-6.)
Page 40
FSK OPERATION
RTTY operation requires a demodulator and a teletypewriter.
A demodulator including 2125 and 2295 Hz
(170 Hz shift) filters, will be acceptable and may be connected
directly to the ACC2 connector. To use
the transceiver's FSK circuit with older high voltage teletype
equipment, you must use an external keying
relay in the teletypewriter closed loop, and connect the relay
contacts to the rear panel RTTY terminal
(pin 2 of the ACC 2 connector).
During FSK operation, the MARK frequency is shown on the display.
The figure below shows the frequency relationship between
receive and transmit with this transceiver. In
FSK operation the mark frequency is indicated
on the display.
[figure not described]
Note: The display frequency 14.200.00 MHz.
- The BFO normally uses the LSB mode for RTTY operation.
When the REV key is pressed, the BFO
changes to the USB mode. If the other transceiver is using
reverse shift, the receiver polarity can be
adjusted with the REV key.
- The display indicates the mark frequency even if the shift
width is changed.
- Normally a mark frequency is transmitted when the key is
closed, and the space frequency is
transmitted when the key is open.
- The polarity can be reversed so that the mark frequency
is transmitted when the key is open with a
power on function. (Please refer to Section 4-11-15.)
AFSK OPERATION
DATA COMMUNICATIONS (RTTY, AMTOR, SSTV, etc.)
This transceiver will adapt to Slow Scan Television or AFSK
(Audio Frequency Shift Keying) operation.
For SSTV, the ACC 2 connector should be connected to the Camera
output. The ACC 2 connector
should be connected to the monitor input. For AFSK operation,
connect the Tone Unit output to the ACC
2 input, and ACC 2 output to the Tone Unit input.
1. The ACC 2 connector has been provided for connection of
Data communications devices. All
necessary connections can be accomplished from the same connector.
2. When using AFSK (Audio Frequency Shift Keying) or modulating
the signal with any form of audio
tones you should select LSB or USB. If F2 operation is desired
select the FM mode. In general LSB is
used for RTTY and PACKET communications in the HF band (F1),
and USB is used for AMTOR.
3. The transceiver will transmit according to the signals
received on the STBY connector. These inputs
are generated by the terminal unit in response to inputs from
the associated terminal input device.
4. When using LSB, or USB the MIC gain control should be
used to adjust the input level for an on scale
ALC meter reading.
5. Pin number 9 of the ACC 2 connector is used to disable
the front panel microphone connector during
the periods that your communication terminal is in use (grounding
the pin accomplishes this task). This
prevents unwanted errors from appearing in your text.
Page 41
4-9. AUTOMATIC ANTENNA TUNER OPERATION
Note:
1. The autotuner function is unavailable on the TS-690S models
and on the TS-450S models that do not
contain an antenna tuner.
2. The autotuner does not function in the 1.8 MHz Band.
3. To use the 50MHz Band with the TS-690S, connect the antenna
directly to ANTENNA 2.
If the transceiver is operated into an antenna with a high
SWR, the final stage SWR protection circuit
may operate (when SWR is greater than approximately 3:1).
Use of the Automatic Antenna Tuner will
help you to match the antenna to the transceiver. The AT unit
is capable of matching a 20 - 150 ohm
load, or approximately a 3:1 SWR. If the antenna and feed
line exceed this range the tuner may not be
able to find the correct match. If the tuner cannot match
after two attempts, check your antenna and feed
lines. Output power of the transceiver will automatically
be reduced to approximately 10 watts during the
tuning process to protect the finals against damage.
The automatic antenna tuner has the following two modes:
1. Automatic Tune mode
In this mode, tuning signals are transmitted to tune the antenna
and transceiver automatically.
1. Set the THRU/AUTO switch to AUTO (in).
2. Set the AT TUNE key to ON. The transceiver switches to
the CW mode, the AT
TUNE indicator lights, and the unit starts tuning.
Note: The tuner will not function when the CAR control is
turned fully counterclockwise.
3. When tuning is completed and the AT TUNE indicator goes
out, the frequency display returns
automatically.
4. A warning beep tone is sounded if tuning is not completed
within 20 seconds. If this occurs press the
THRU/AUTO switch to THRU, and then repeat steps 1 - 3.
Note: IF a warning beep tone sounds, the antenna system may
be defective, so check it.
Once tuning has been done, the tuning state is stored in
memory. If the amateur band is changed, the
tuning state for that amateur band is set automatically. Thus,
the tuning time is reduced.
Page 42
2. Manual Tune mode
Manual adjustment of the tuner is possible with the tuning
knob and M.CH/VFO CH control if
automatic-tuning is not possible.
- Preparation
1. Press and hold the M.IN key while you turn on the POWER
switch.
2. Select the number 31 by rotating the M.CH/VFO CH control.
Use the UP/DOWN switch to select "off".
3. Press the CLR key.
To cancel the manual tuning mode, perform step 1, select
"on" in step 2, and then step 3.
- Manual Tune procedure
1. Place the THRU/AUTO switch to AUTO.
2. Press the AT TUNE key.
3. Adjust for minimum SWR by turning the tuning knob and
the M.CH/VFO.CH control alternately, while
observing the SWR meter. The rotation angle of the
variable capacitor is shown on the display as a relative percentage.
Note: If manual adjustment fails to lower the SWR and complete
the tuning, adjust the SWR of the
antenna.
4. Once tuning has been completed, press the AT TUNE key
again.
5. This setting is stored in memory as the preset data for
the amateur band when the AT TUNE indicator
turns off or you stop tuning by pressing the AT TUNE key.
If manual tuning is performed in one band, then again in another
band only the tuning data for
the first band is memorized. Therefore, if the first band
is reselected, the memorized tuning data is
recalled, reestablishing the original tuning state.
Page 43
4-10. BASIC OPERATION MODE
The operation of the front panel keys and controls can be
limited for mobile operation by performing the
following procedure.
- Function selection
1. Turn the power off.
2. Press and hold the number 2 key, and turn the power on.
- The keys and controls that will now operate are as follows:
POWER switch
VOX/OFF switch
ATT/OFF switch
SEND/REC switch
AUTO/THRU switch
AT TUNE key
MODE key
F.LOCK key
VOICE key
VFO tuning knob
M/V key
UP/DOWN key
NB 1 ON/OFF
M.CH/VFO CH control
SQL control
AF control
RF control
DELAY/CAR/PWR/MIC control
- To return to full functional control:
1. Turn the power off.
2. Press and hold the number 1 key, and turn the power on.
Page 44
4-11. OTHER OPERATIONS
4-11-1. Beep
Audible confirmation of various microprocessor functions
is provided in the form of a series of audio
beeps. The output level of the Beep tone is adjustable with
a variable resistor located inside the set.
(Please refer to Section 6-6.)
The audio tone can be turned off. (See 4-11-15 Power On Function
control.)
4-11-2. Audible Mode Announcement
When a Mode key is pressed, the first character of the mode
is sounded in Morse code thru the speaker.
(Note that FSK is announced with an "R").
This function can be set to a single tone thru Power On Control
Programming. (See 4-11-15, Power On
Function Control.)
[table, showing mode and Morse Code used:]
LSB; dit dah dit dit (L)
USB; dit dit dah (U)
CW; dah dit dah dit (C)
FSK; dit dah dit (R)
AM; dit dah (A)
FM; dit dit dah dit (F)
4-11-3. Alarm Function
Several alarms have been included to signal errors that you
might encounter. This function can be set to
a single tone thru Power On Control Programming. (See 4-11-15,
Power On Function Control.)
The chart below lists the possible causes and the resulting
Morse code alarm. Morse code will be heard
from the speaker.
[table showing Indication; and Morse Code]
- When the SCAN key is pressed and the receiver is unable
to execute memory
scan.
1. There is no data in the specified memory channel.
2. The data in the specified memory channel is locked out.
code: CHECK
(dah dit dah dit dit dit dit dit dit dah dit dah dit dah dit
dah)
- If it exceeds the operating range when the frequency is
entered with the numeric keys.
code: OVER
(dah dah dah dit dit dit dah dit dit dah dit)
- When the PLL circuit is unlocked.
code: UL
(dit dit dah dit dah dit dit).Page 45
4-11-4 Frequency Step
A. TUNING knob
The frequency step depends on the mode that has been selected:
SSB/CW/FSM - frequency step 10 Hz; one revolution of tuning
knob = 10 kHz.
AM/FM - frequency step 100 Hz; one revolution of tuning knob
= 50 kHz.
When the FINE function is ON, the frequency step is 1 Hz.
The frequency step in the AM and FM modes
can be set to 10 Hz (please refer to Section 4-11-15).
B. M.CH/VFH CH control
1. The active VFO frequency step is shown below:
Frequency step 10 kHz; one revolution of M.CH/VFO CH control
= 240 kHz
The frequency step may be reprogrammed. (please refer to Section
4-11-15).
2. This control is also used to select the desired memory
channel during Memory Channel Operation.
4-11-5. Amateur Radio Bands selection.
Press the UP/DOWN switch to change amateur radio bands.
4-11-6. Direct keyboard frequency entry
Direct keyboard entry of the operating frequency is possible
using the Numeric Keypad on the
transceiver. This allows rapid changes in frequency without
the delays encountered when using other
tuning methods.
Note: You cannot enter any frequency which is outside the
coverage of the radio.
1. Press the ENT key. The display will indicate:
- - . - - - . - -
Page 46
2. Enter the desired frequency with the numeric keys. Zero
to 4 (0 to 7 for the TS-690S) can be entered
as the 10MHz digit. If 5 to 9 (8 to 9 for the TS-690S) is
pressed, it is entered as the 1 MHz digit i.e.
5.000.00 MHz etc. For 3 MHz or less, first press 0.
3. After the least significant digit has been entered, press
the ENT key again to signify you want the
radio to change frequency. If you entered the frequency down
to the nearest 10 Hz a beep will sound
and the radio will automatically change to the new frequency
without the need of pressing the ENT key
for the second time.
For example:
To enter 14.200.00 MHz there are two methods:
Method one: Press ENT, 1, 4, 2, ENT
Method two: Press ENT, 1, 4, 2, 0, 0, 0, 0
4. If you make a mistake while entering the frequency and
have not yet pressed the ENT key, or entered
the final digit, you may cancel the input by pressing the
CLR key or the PTT switch.
Page 47
4-11-7. Dual Digital VFO's
Transmission and reception can be performed more efficiently
by using VFO A, VFO B, and the memory
channels.
VFO A, VFO B, and the memory channels used for transmission
and reception are changed with the A/B
key, M/V key, and SPLIT key.
[graphic, not described]
A=B key:
Depressing this key causes the data contained in the inactive
VFO (the VFO that is not currently being
displayed in the display area) to change to the same data
that is contained in the active VFO (the one
currently displayed). The frequency, mode and filter selection
are changed.
For example:
VFO A is set at 7 MHz in LSB, and VFO B is 14 MHz in USB.
VFO A is the active VFO (shown on the
display). Depressing the A=B key will cause VFO B to change
to 7 MHz in LSB.
Page 48
4-11-8. Split Frequency Operation
Different frequencies can be selected for VFO A, VFO B and
for memory.
For example:
VFO A is the active VFO, and VFO B is the inactive VFO. Depressing
the SPLIT key will cause the
transceiver to receive on VFO A and transmit on VFO B. The
mode of reception and transmission will
follow the mode contained in the appropriate VFO.
To avoid confusion during contest, or pile-up operations we
recommend using VFO A for receive and
VFO B for transmit.
To perform split frequency operation with a memory channel,
you must activate Power On Menu item 12,
then select the desired TX mode with the SPLIT key. Pressing
the SPLIT key will step the TX VFO from
A to B to M. (See 4-11-15, Power On Function Control).
[graphic, not described]
TF-SET key:
Depressing this key will allow you to rapidly set or check
the transmit frequency, during SPLIT
operations, without the need of actually transmitting.
1. When the TF-SET key is pressed, the transceiver enters
the receive mode with the transmit
frequency, and can receive the transmit frequency. It does
not function in transmit mode.
2. When the TF-Set key is held down and the tuning knob is
turned, the transmit frequency of the
transceiver can be checked or set in receive mode.
3. After setting and checking the transmit frequency, release
the TF-SET key. The frequency returns to
the original receive frequency.
Page 49
4-11-9. Interference Reduction
1. IF SHIFT
Note: IF SHIFT works in SSB, CW, and FSK modes only.
The IF shift control allows you to shift the IF passband
of the receiver without changing the actual centre
frequency of the receiver. This control is useful when there
is interference near your centre frequency.
As the accompanying illustration shows, rotating this control
may place the interfering signal outside the
receiver passband, allowing for easier copy.
[illustration not described]
Interference from lower frequencies can be reduced or eliminated
by rotating the IF SHIFT control in the
+ direction. This will cause the resulting audio frequencies
to have a slight treble response, i.e. low cut
filter (low frequencies attenuated). Interference from higher
frequencies can be reduced or eliminated by
rotating the IF SHIFT control in the - direction. This will
cause the resulting audio frequencies to sound a
little bassy, i.e. high cut filter (high frequencies attenuated).
2. FILTER key:
The filter bandwidth for the 8.83 MHz and 455 kHz IFs can
be selected from the front panel. Up to 2
additional filter bandwidths may be added through the installation
of optional filters.
- 8.83 MHz filter bandwidth:
The value changes each time the 8.83 key is pressed (6 k to
2.4 k to 500 to THRU (LC filter).
2.4K and 500 are not displayed unless the optional filter
is installed.
Notes:
1. Some bandwidths cannot be selected unless the required
filter is installed.
2. Only THRU may be selected for the FM mode.
3. See 7-1, Filter installation when installing optional filters.
Page 50:
- 455kHz filter bandwidth:
The value changes each time the 455 switch is pressed (12k
to 6k to 2.4k to 500 and back to 12k).
"500" is not displayed unless an optional filter
is installed.
Notes:
1. In the FM mode, only 12 kHz (wide) and 6 kHz (narrow) can
be selected. The 455kHz filter
changeover key serves as the deviation changeover key in FM
mode. "12k" is displayed for a deviation
of +5 kHz and "6k" is displayed for a deviation
of +2.5 kHz.
2. Some bandwidths cannot be selected unless the required
filter is installed.
3. Either the optional YG-455C-1 or YG-455CN-1 can be installed.
"500" is also displayed if the
YG-455CN-1 is installed.
4. See 7-1, Filter installation when installing optional
filters.
Initial state [chart for mode; 8.83 MHz filter; 455 kHz filter]:
SSB,CW,FSK; 6k; 2.4k
AM; 6k; 6k
FM; THRU; 12k
Note:
When bandwidth of the 8.83 MHz filter is approximately the
same as that of the 455 kHz filter, the
combined bandwidth will be narrower than the indicated bandwidth.
For example, when both the 8.83 MHz and 455 kHz filters are
set to 2.4k, the combined bandwidth will
be about 2.2 kHz.
Page 51
3. NOTCH control (Except FM mode):
The NOTCH function is used to reduce or eliminate heterodyne,
or CW type signals. The NOTCH filter
will not be effective against SSB, AM or FM type signals.
To use the control, place the NOTCH key ON
and slowly rotate the NOTCH control to reduce the interference.
Notes:
1. The NOTCH frequency can be varied within a range of approximately
400 to 2600 Hz.
2. When an interfering signal such as a CW station appears,
slowly rotate the NOTCH control. If you
rotate the knob too quickly you may pass right over the notch
point. Slow rotation will yield best results.
[sketch of signals]
4-11-10. Noise Blanker
Each time the NB1/2 key is pressed, it changes the noise
blanker from NB1 to NB2 to OFF and back to
NB1.
NB1:
For pulse type noise, such as that generated by automotive
ignition systems, select NB 1. NB 1 will not
help to eliminate atmospheric or line noises, only pulse type
noise.
NB2:
NB 2 is used for long duration pulse noise, like the "woodpecker".
To reduce "woodpecker" radar noise
interference, select NB 2 ON (NB 2's effectiveness depends
on the specific type of interference). If you
use NB 2 for short duration pulse noise, the receive tone
may become distorted, making it difficult to
hear.
Unfortunately no noise blanker can remove all different types
of interference; but the two noise blankers
that have been provided in the TS-450S/690S are effective
in most cases.
Page 52
4-11-11. VOX Operation
- SSB, FM, AM mode:
When the VOX/OFF switch is set to VOX (in), transmit and receive
are switched automatically by
speaking into the microphone in the SSB, FM, and AM modes.
- CW mode:
When the VOX/OFF switch is set to VOX, transmit is selected
when the key is depressed, and receive is
selected when the key is up.
1. ANTI control:
VOX operations are sometimes difficult with high speaker
volume control settings. The ANTI control is
used to reduce the tendency of the VOX to activate from inputs
from the speaker. The ANTI control is
not active when headphones are connected.
ANTI-VOX levels may adversely effect the operation of the
VOX circuit. Only use minimal ANTI-VOX
levels.
2. VOX control:
This control adjusts the sensitivity of the VOX amplifier.
Adjust this control for your personal preference.
3. DELAY control:
This control adjusts how long the transceiver will remain
keyed after voice input has stopped.
Page 53
4-11-12. RIT Control
The RIT control allows shifting the receiver frequency +/-
1.1 kHz. Use of the RIT control will not affect
the transmit frequency. The RIT step size is either 10 Hz
or 20 Hz. (Please refer to section 4-11-15.)
When the RIT is ON, the RIT indicator will light, and the
receive frequency can be adjusted by using the
RIT/XIT control.
When the RIT is ON, the transmit frequency may be different
from the receive frequency. For normal
operation leave the RIT OFF. It should be used only when necessary.
4-11-13. XIT Control
Transmitter Incremental Tuning is very similar to RIT. XIT
is only active in the transmit mode. By using
the XIT function it is possible to offset the transmit frequency
without the normal loss of receiver audio
that is experienced when using the SPLIT function. The XIT
step size is either 10 Hz or 20 Hz (please
refer to section 4-11-15).
Offsets of +/- 1.1 kHz are possible.
When RIT/XIT are off, the display is off.
4-11-14. Delta F Function
The TF-SET key can be programmed so that the display will
indicate the difference between the receive
and transmit frequencies rather than the TX frequency.
1. Press the A=B key during simplex transmission to make
the VFO A and VFO B frequencies equal.
2. Press the SPLIT key.
3. Press and hold the TF-SET key, then press numeric key
7 (delta F). Keep the TF-SET key
depressed. The display shows: dF 00.00 kHz.
4. Select the desired split frequency using the VFO tuning
knob or the M.CH/VFO CH control. If the TF-
SET key is released, the receive frequency is displayed. If
the key is pressed again, the frequency set in
step 4 is displayed.
5. Press the microphone PTT switch, or set the REC/SEND switch
to SEND.
To return to the original TF-SET key function, press and
hold the TF SET key then press numeric key 7
again. The transmit frequency set with the delta F function
remains in the transmit VFO even after the
function has been cancelled.
Page 54
4-11-15. Power On Function Selection
(1) Programming:
Several of the functions of this transceiver can be changed
at the time the transceiver is turned ON.
Repeat to release each function.
1. Press and hold the LSB/USB key while you turn on the POWER
switch.
2. A menu number will appear in the display.
3. Select the desired menu number by rotating the M.CH/ VFO
CH control.
4. Change the function with the UP/DOWN switch.
5. You can return to the normal display by pressing the CLR
key, or turn the POWER switch OFF and
back ON.
[table with 3 columns: Menu No.; Function Description; Initial
State]
01; Enables (ON) or disables (OFF) the main tuning control;
ON
02; Enables or disables the round off function of the M.CH/VFO
CH control; ON 03; Enables or disables
the numeric keypad; ON
04; Enables or disables the BEEP function; ON
05; Determines how depression of a mode key is announced -
ON=Morse Code, OFF=BEEP; ON
06; Determines how errors are announced ON=Morse Code OFF=BEEP;
ON
07; Turns the 10 Hz resolution function of the display ON
or OFF; ON
08; Turn the meter peak hold function ON or OFF; OFF
09; Storing the band frequency before the UP/DOWN switch is
pressed: Required (ON) / Not required
(OFF); ON
10; SSB Auto Mode selection ON or OFF; ON
11; Enables (ON) disables (OFF) NB2; ON
12; Split Frequency operation with a Memory channel; OFF
13; Automatic Memory Channel Increment during memory entry;
OFF
14; Determines if memory channels acts like fixed channel
crystals (OFF), or allows tuning with the VFO
control (ON); OFF
15; Enables (ON) disables (OFF) Program scan hold; OFF
16; Enables (ON) disables (OFF) the linear keying relay; OFF
17; Enables (ON) disables (OFF) data transfer function between
radios; OFF
18; Data from any other transceiver can be received and written
to either the VFO or memory channel
00.(on: VFO; off: Memory channel 00); OFF
19; Enables (ON) disables (OFF) transmit; OFF
20; Enables (ON) disables (OFF) Memory channel erase inhibit;
OFF
21; Enables (ON) disables (OFF) Memory channel write protection
(cannot write over a memory channel
that contains information); OFF
Page 55
(2) Cancelling and setting the initial state and changing
the initial values:
1. Press and hold the M.IN key while you turn on the POWER
switch.
2. A menu number will appear in the display.
3. Select the desired menu number by rotating the M.CH/ VFO
CH control.
4. Change the function with the UP/DOWN switch.
5. You can return to the normal display by pressing the CLR
key, or press the POWER switch OFF and
back ON.
[table with 3 columns, headed Menu Number; Programmable Functions;
Initial State
31; The built-in antenna tuner can be switched between automatic
tune (on) or manual tune(off); ON
32; Automatic return to receive mode after completion of antenna
tuner; ON
33; The frequency step when the tuning knob is turned one
turn can be set to 5 kHz or 10 kHz; 10 kHz
34; The frequency step of the M.CH/VFO CH control can be changed
to 10 KHz, 5 kHz, 2 kHz, or 1 kHz;
10 kHz
35; The frequency step of the M.CH/VFO CH control can be changed
to 10 KHz or 9 kHz in the BC band
only (only in AM mode in the BC band); 10kHz
36; When the 1 MHz key is pressed, the step of the UP/DOWN
key can be changed to 1 MHz or 500
kHz; 1000 kHz
37; The shift width in FSK mode can be selected from 170,
200, 425, and 850 Hz; 170
38; When the FSK transmission key is shorted, you can change
between space transmission (off) and
mark transmission (on); ON
39; The receive tone can be set to either high (2125 Hz) or
low (1275 Hz); 2125
40; The pitch during CW reception can be set anywhere in the
range of 400 to 800 Hz in 50 Hz steps;
800
41; The RIT/XIT variable range can be changed to +/- 1.1 kHz
or +/- 2.2 kHz or more; 1.1 kHz
42; Display HELLO when the power is turned on; OFF
Page 56
4-12. MEMORY
This transceiver incorporates a convenient 100 channel memory
system that can be used to store and
recall commonly used frequencies.
4-12-1. Microprocessor battery
A lithium battery is contained in the transceiver to retain
memory. Turning off the POWER switch,
disconnecting the power cable, or a power failure will not
erase the memory. The battery should last for
approximately five years. When the battery discharges, an
erroneous display may appear in the display.
Lithium battery replacement should be performed by an authorized
KENWOOD service facility; your
KENWOOD dealer authorized service center, or the factory,
since this unit contains CMOS type circuitry.
Notes:
1. When the lithium battery is replaced, the microprocessor
must be reset, using the procedure in section
4-12-2.
2. When the lithium battery fails, the radio's operating system
is not affected. Only information stored in
memory will be cleared.
4-12-2. Microprocessor Initial state and reset procedure.
- Initial state of the microprocessor from the factory:
VFO A 14.000.00, USB
VFO B 14.000.00, USB
Memory Channel 00-99 [blank]
- Microprocessor reset procedure
There are two methods for resetting the microprocessor.
1. Press and hold the A=B key and turn on the POWER.
Caution: All user programmed memory will be erased with this
method.
2. Press and hold the A/B key and turn on the power to reset
all user programmed data except the
contents of the Memory Channels. (VFO reset)
4-12-3. Memory Channel
Memory channels 00 through 89: function - standard and split
Memory channels 90 through 99: function - programmed scan
4-12-4. Memory Contents
Each Memory Channel is capable of storing the following information:
Frequency
Mode
Filter
Tone ON/OFF (for channels 00-89, when the memory is used as
a split memory in FM mode for both
transmission and reception; Not applicable for channels 90-99)
Highest/Lowest operating frequency (channels 90-99 only)
AIP ON/OFF
Memory Channel lockout
AGC
Page 57
4-12-5. Memory Entry
- Standard Memory Channel (00 - 89):
1. Select the receive frequency, the mode and the filter.
Example: 14.175 MHz is selected on VFO A.
2. Press the M.IN key. The radio will enter the Memory Scroll
(M.SCR) mode.
3. Specify the memory channel with the M.CH/VFO CH control
or the numeric keypad.
4. When the desired memory channel is found and displayed,
press the M.IN key again. The current
frequency, mode and filter will be stored, the Memory Scroll
mode will be cancelled, and the transceiver
will return to the operating mode and frequency that was displayed
before the M.IN key was initially
pressed.
Note: When a channel in which data is stored is selected
and the M.IN key is pressed, the data in that
channel is erased, and new data is stored in the channel.
Page 58
- Split Memory Channel [00-89]:
1. Select the receive frequency, the mode and the filter.
Example: 21.200 MHz is selected on VFO A.
2. Press the A/B key.
3. Select the desired transmit frequency. Example: 21.210
MHz is selected on VFO B.
4. Press the A/B key again.
5. Press the SPLIT key. The SPLIT indicator lights.
6. Press the M.IN key. The display shows the memory channel
that was accessed last.
7. Select the desired Memory Channel by rotating the M.CH/VFO
CH control.
8. When the desired memory channel is found and displayed,
press the M.IN key again. The current
frequency, mode and filter will be stored, the Memory Scroll
mode will be cancelled, and the transceiver
will return to the operating mode and frequency that was displayed
before the M.IN key was initially
pressed.
Note: When a channel in which data is stored is selected
and the M.IN key is pressed, the data in that
channel is erased, and new data is stored in the channel.
Page 59
- Programmed Scan Memory Channel (90-00)
The upper and lower frequency limits are stored in these
memory channels. These channels can be
used as standard memory channels if the upper and lower frequencies
are identical.
These memory channels can have a variable range like another
VFO by storing the upper and lower
frequency limits in memory. The frequency is varied with the
tuning knob. When the UP/DOWN switch
is pressed, the upper or lower frequency limit can be reached
and the range confirmed. (See 4-12-10,
Confirmation of the upper and lower frequency limits.)
1. Select the lowest operating frequency and the mode. Example:
7.030 MHz is selected on VFO A.
2. Press the A/B key.
3. Select the highest operating frequency. Example: 7.100
MHz is selected on VFO B.
4. Press the A/B key again.
5. Press the M.IN key. The display shows the memory channel
that was accessed last.
6. Select the desired Memory Channel (90-99) with the M.CH/VFO
CH control or the numeric keys.
7. After the desired program scan memory channel is selected,
press the M.IN key again. The current
frequency, mode and filter will be stored, the Memory Scroll
mode will be cancelled, and the transceiver
will return to the operating frequency that was displayed
before the M.IN key was initially pressed.
Note: When a channel in which data is stored is selected
and the M.IN key is pressed, the data in that
channel is erased, and new data is stored in the channel.
Page 60
4-12-6. Memory Channel Recall
The following procedure illustrates how to recall a memory
channel.
1. When operating in the VFO mode, press the M/V key. The
display will indicate the memory channel
that was accessed last.
2. Select the desired memory channel by rotating the M.CH/VFO
CH control. The memory channel
indicator and the frequency in the display will change as
this control is rotated.
3. To return to VFO operation, press the M/V key.
4-12-7. Memory Channel Scroll
The following procedure provides a method to check the contents
of a Memory Channel contents without
changing or losing the current receive frequency.
1. Press the M.IN key once to initiate Memory Scroll. The
M.SCR indicator lights, and the Memory
Channel Frequency is displayed. Although the displayed frequency
will change, actual reception will be
at the previous frequency (that is, the frequency before the
M.IN key is pressed).
2. Select a Memory Channel using the M.CH/VFO CH control
or numeric keys. The frequencies stored
in the Memory Channel will be displayed.
3. Cancel the Memory Scroll operation by pressing the CLR
key.
Page 61
4-12-8. Memory Channel Selection
- To change between the channels stored in memory
1. When VFO operation is performed, press the M/V key. The
display shows the last accessed memory
channel.
2. Activate the 1 MHz key (the 1 MHz indicator will light)
and rotate the M.CH/VFO CH control to switch
between the channels stored in memory.
3. To return to VFO operation, press the M/V key.
Note: If there is nothing in the memory channels, and the
M.CH/VFO CH control is rotated, "check" is
output from the speaker in Morse code.
- To change between the empty channels
1. Press the M.IN key to enter the memory scroll mode. Although
the display frequency is changed, the
frequency set before the M.IN key was pressed is used for
actual reception.
2. Activate the 1 MHz key (the 1 MHz indicator will light)
and rotate the M.CH/VFO CH control to switch
between the empty channels. You can also do this with the
numeric keys.
3. To cancel the memory scroll mode, press the CLR key.
Notes:
1. If all the memory channels are full, and the M.CH/VFO CH
control is rotated, "check" is output from
the speaker in Morse code.
2. If a channel stored in memory is specified with a numeric
key, "check" is output from the speaker in
Morse code.
Page 62
4-12-9. Transferring Memory Information to the VFO.
The following procedure transfers the contents of the selected
memory channel to the VFO.
1. When operating in the VFO mode, press the M/V key. The
display will indicate the memory channel
that was accessed last.
2. Select the desired Memory Channel by rotating the M.CH/VFO
CH control.
3. Press the M to VFO key. This will cause the contents of
the memory channel to be transferred to the
VFO.
[graphic showing changing appearance of display]
Notes
1. When the M to VFO key is pressed, the contents of the VFO
are cleared but the contents of the
Memory Channel will not be cleared.
2. If nothing is stored in the selected Memory Channel, only
the channel number is displayed; no transfer
is carried out.
Page 63
4-12-10. Checking the Highest and Lowest Scan frequencies
It is possible to check the frequencies that are stored in
the program scan memory channels by using the
following procedure.
1. When operating in the VFO mode, press the M/V key. The
display will indicate the memory channel
that was accessed last.
2. Select the desired Program Scan memory channel by rotating
the M.CH/VFO CH control (CH 90-99).
3. Press the UP switch to display the upper scan limit.
4. Press the DOWN switch to display the lower scan limit.
5. To return to VFO o | 
