Kenwood TRC-80 User manual

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TRC-80
HF SSB RADIOTELEPHONE
INSTRUCTION MANUAL
RADIOTELEFONO DE HF SSB
MANUAL DE INSTRUCCIONES
#2 13 1B BL
(# it BAB
KENWOOD CORPORATION

HF SSB RADIOTELEPHONE
TRC-80
INSTRUCTION MANUAL
KENWOOD CORPORATION

CONTENTS
SAFETY PRECAUTIONS. ..........c:cesecceeseseeeeeeeeeeeerneeees 1
IMPORTANT NOTICE .........::ccsccessseeseeeceeseeeeneresaetenereee 1
INTRODUCTION ..........csccesccsssecessessscssecesesesneesaresneeaes 1
SUPPLIED ACCESSORIES ..........ccccccscssseestesseeseeeeees 1
BASE STATION INSTALLATION ..........c:ccesscesseeseeeees 2
ANTENNA CONNECTION .......cccsseeectseseeeeeeseeees 2
GROUND CONNECTION .........ccccsscsscessersseesseeteees 2
DC POWER SUPPLY CONNECTION ............000+ 2
Replacing FuS€S ...........eeeeeseeeeeseeeseeeeeeneeeseees 2
MOBILE INSTALLATION ..........::ccssccssssssesessessseeseeeeneres 3
ANTENNA CONNECTION .........cscccsereessesereseeeseeeees 3
DC POWER CABLE CONNECTION ........:::ceceeees 3
Replacing FUSES ........ecseseessceseeeeseeeseeeeeeeeneeees 3
GROUND CONNECTION ...........cccesseestesssersreeseeee 3
GETTING ACQUAINTED ..........eceecssescesersecesnseeneneneees 4
FRONT PANEL ...........ccccccseecsscesseeseessecesenesseeeseesees 4
REAR PANEL ..........::ccsscssseesseeesseessesseesseeseseeeeesnees 5
DISPLAYS escsdeecscdesccrtecstecsots ac vases te ceeses dees 6
MICROPHONE .........:.c::ccsscccssecsecsseeseeeseeecseesseeesees 7
OPERATING BASICS ........cceecssecscesseessecseeseeeeneesreees 7
SWITCHING POWER ON/OFF ........::csceseceseeeteees 7
ADJUSTING VOLUME .........cscesesecetecseseeeeeeeeeeseeens 7
ADJUSTING SQUELCH ...... ce eeeeeeeeeeeseecreeereeereee 7
SELECTING A CHANNEL... .ceceeceeeseeeeeeeteeeeneeee 8
SELECTING A MODE ........eeeecsecsseseeeseceescerneeeeeeees 8
TRANSMITTING uu... cecccseeesceescesseesseesseeteneteneeeenes 8
Changing Transmit POWE? ..........cceeeeeseeseeeeeees 8
VOICE MOdES ........eeeeecesececerscenseenteeteeeeesetseeneteees 8
VOX (Voice-operated Transmit) ............. cere 8
QW: MOG vssseviccesececsssccsssteassoceudicesesctdvstuessooesvene 9
DATA OPERATION istesssscsscessassecvsscsdeceslassebeatvesceedsiees 9
PSKMODE sisiscdecdssstesnscei hoe naneciieeectdaesetecse dette 9
ASK. MODE scscckcvnsceesteavssseedesavadeedvenendectdasddavavestees 9
MENU SETUP si cgec sectitecs Seti letiedivetecstetes acetic 10
CHANGING MENU SETTINGS ....... ec eeeeeseseeeees 10
MENU CONFIGURATION ..........s:ccscceseeseessceeserens 10
MEMORY BACKUP. ........:ccsccccceessessecsceeseeecerecseeseeeaes 10
SCAN sscssk cele vei ssetediceathetatldwae ists Ravtece aezenetetes 11
BUSY FREQUENCY STOP .......ceecceeescereeeereeees 11
Scan Resume Methods ...........:::esecceeseeseneeeeees 11
CHANNEL LOCKOUT ............:cccsccescestecseceereeseeees 11
STARTING/ STOPPING SCAN .........:csccesseeeesees am]
NOISE BLAMKER ..........cccccscessesseesseeseessaeesaeesseeeeeeaes 11
GLARIPIER 3: ssccdestabccetscccseathccsceanetvavstonstunses sacuSueeybeduns 11
KPE-1 SELECTIVE CALL UNIT (OPTIONAL) ........... 11
MANUAL CALLING ..........ccccesceeeescecseesseeseesneeees 12
MEMORY CALLING ..........::cscccsssesssesteesseessreeeeesees 12
REGEIVING oissesdists. iesstisssistetetesectdoeeceasbenccatiinee 12
CHANGING IDENTIFICATION CODEG............... 13
CHANGING CHARACTER MESSAGES ............. 13
AUTOMATIC ANTENNA TUNER ....ecsssseseccressssssssson 13
PRESETTING (KAT-2 INTERNAL TUNER).......... 13
KAT-2 INTERNAL TUNER (OPTIONAL)..........0+0 13
KAT-1/ MAT-100 EXTERNAL TUNER
(OPTIONALY (.2accddiardunciamionaurtulnians 13
COMPUTER = RADIOTELEPHONE
INTERFACE..sssssssssssssssssssscsssssssssssessesssesssssenesnssssssen 14
COMMUNICATION PARAMETERS ......sssssseesseee 14
HARDWARE DESCRIPTION ....ssssssssssssessssessesseee 14
MAINTENANCE ...ssssssssssssscssssescsssesssesssssenssenesseeseseses 15
SERVICE totes enti te ere Ean 15
SERVICE NOTE siiscicansaumiewisutucstauainn 15
CLEANING a2 he 8c ater cnt tech oe nenak Sashuch ch 15
TROUBLESHOOTING uvesssssesssssssssessscesssssssssssenee 16
ACCESSORY CONNECTIONS o...ccccsssssseceetesssssesen 17
COMPUTER INTERFACE (ACC 1) ..ssssssssssssssseen 17
PC-1A PHONE PATCH
CONTROLLER (AGO 2) ied nncetedsesccdis 17
ANTENNA TUNER (AT) ...ssssssssssssescsevssssssssseseeeeee 17
DATA EQUIPMENT INTERFACE (ACC 2).......... 18
OHANNEL MEMO sate isl ccvsssccaschencnnueiconsaaia 19
APPENDIX wigtiptinciencaiel ed iat ones Al
CONTROL OPERATION ...ssssssssssssssssssssssssseseeeeee At
COMMANDS sfc cccat entre esa. aati At
COMMAND DESCRIPTION .....ssssssssssssssssseeseeeeee At
PARAMETER DESCRIPTION ......csssssssssssseseeeeee At
TERMINATOR ocscescseccsssssssssssssssssssssssonsnsssceeesece A2
TYPES OF COMMANDS ....sssssssssssssssssssssssesesseee A2
COMPUTER CONTROL COMMANDS .......s.sss00 A3
ERROR MESSAGES ......sssssssssssssesesseseeeseeesees A3
COMMAND USE PRECAUTIONS .....sssssssssseseeee A3
READING COMMAND TABLES ...ssssssssssssesssseeeees A4
COMMAND TABLES ....ssssssssssssssssssssssssssasesssessese A4

SAFETY PRECAUTIONS
It is important that the operator understands and is
aware of hazards common to the operation of any
radiotelephone.
WARNING!
1 EXPLOSIVE ATMOSPHERES
(GASES, DUST, FUMES, ETC.)
Turn off and do not operate the radiotelephone while
taking on fuel, or while parked in gasoline service
stations. Do not carry spare fuel containers in the trunk
of your vehicle if the radiotelephone is mounted in the
trunk area.
2 INJURY FROM RADIO FREQUENCY
TRANSMISSIONS
Do not operate the radiotelephone when anyone is
touching the antenna, or when anyone is standing within
two to three feet of the antenna, to avoid the possibility
of radio frequency burns or related physical injury.
3 DYNAMITE BLASTING CAPS
Transmitter operation can cause dynamite blasting caps
to explode if you operate within 500 feet of the blasting
caps. Turn off and do not operate the radiotelephone in
an area where blasting is in progress, or where “TURN
OFF TWO-WAY RADIO” signs have been posted. If
you are transporting blasting caps in your vehicle, make
certain they are carried in a closed metal box having a
padded interior. Do not transmit during the time that the
caps are being placed into or removed from this
container.
IMPORTANT NOTICE
Government law prohibits the operation of unlicensed
radio transmitters within the territories under
government control. Illegal operation is punishable by
fine or imprisonment or both.
Refer service to a qualified licensed or certified
technician only.
INTRODUCTION
All KENWOOD radiotelephones incorporate the latest in
advanced technology, providing communications that
_can be counted on to keep vehicles and personnel
operating at peak efficiency.
The easy-to-operate TRC-80 radiotelephone continues
the KENWOOD tradition of dependable
communications. When combined with the optional
KPE-1 Selective Call Unit, the TRC-80 allows full
flexibility for signaling and communicating with specific
stations or groups of stations.
SUPPLIED ACCESSORIES
Note: The following instructions are for use by your KENWOOD
Dealer only (either an authorized KENWOOD service facility or the
factory).
Carefully unpack the radiotelephone. It is
recommended that you identify the items listed and
check them off before discarding the packing material.
If any damage has occurred to the equipment during
shipment, file a claim with the carrier immediately.
Ete
1
Microphone
DC power cable
Fuse (25 A)
Fuse (4 A)
Instruction manual
F06-4027-XX
B62-0485-XX

BASE STATION INSTALLATION
ANTENNA CONNECTION
The type of the antenna system, consisting of the
antenna, ground, and feed line, will greatly affect the
successful performance of the radiotelephone. Use a
properly adjusted 50 Q antenna of good quality to let
your radiotelephone perform at its best. Use a
good-quality 50 Q coaxial cable and a first-quality
connector for the connection. Match the impedance of
the coaxial cable and antenna so that the SWR is 1.5:1
or less. All connections must be clean and tight.
While the radiotelephone’s protection circuit will activate
if the SWR is greater than 2.5:1, do not rely on
protection to compensate for a poorly functioning
antenna system. High SWR will cause the transmit
output to drop, and may lead to radio frequency
interference to consumer products such as stereo
receivers and televisions. You may even interfere with
your own radiotelephone. Reports that your signal is
garbled or distorted, especially at peak modulation, may
indicate that your antenna system is not efficiently
radiating the radiotelephone’s power. If you feel a tingle
from the radiotelephone’s cabinet or the microphone’s
metal fittings when you modulate, you can be certain
that, at the least, your coax connector is loose at the
rear of the radio and, at the worst, your antenna system
is not efficiently radiating power.
CAUTION:
@ = Transmitting without first connecting an antenna or other matched
load may damage the radiotelephone. Always connect the
antenna to the radiotelephone before transmitting.
@ Usea lightning arrestor to prevent fire, electric shock, or damage
to the radiotelephone.
GROUND CONNECTION
At the minimum, a good DC ground is required to
prevent such dangers as electric shock. For superior
communications results, a good RF ground is required,
against which the antenna system can operate. Both of
these conditions can be met by providing a good earth
groundior your station. Bury one or more ground rods,
or a large copper plate under the ground, and connect
this to the radiotelephone GND terminal. Use heavy
gauge wire or a copper strap, cut as short as possible,
for this connection. All connections must be clean and
tight.
To antenna
DC POWER SUPPLY CONNECTION
In order to use this radiotelephone, you will need a
separate 13.6 V DC power supply that must be
purchased separately. DO NOT directly connect the
radiotelephone to an AC outlet! Use the supplied DC
power cable to connect the radiotelephone to a
regulated power supply. Do not substitute a cable with
smaller gauge wires. The current capacity of your
power supply must be 20.5 A or more.
CAUTION:
@ Before connecting the DC power supply to the radiotelephone, be
sure to switch the radiotelephone and the DC power supply OFF.
@ Donot plug the DC power supply into an AC outiet until you
make all connections.
First connect the DC power cable to the regulated DC
power supply and check that polarities are correct
(Red: positive, Black: negative). Then connect the
connectorized end of the DC power cable to the
DC 13.6 V power connector on the radiotelephone Rear
Panel. Press the DC power cable connector firmly into
the connector on the radiotelephone until the locking tab
clicks.
@ Replacing Fuses
If the fuse blows, determine the cause then correct
the problem. After the problem is resolved, only then
replace the fuse. If newly installed fuses continue to
blow, disconnect the power plug and contact your
Dealer for assistance.
4A
(for KAT-1/ MAT-100
Antenna Tuner)
TRC-80
Supplied
Accessory Cable
CAUTION: Replace blown fuses only after investigating and
correcting the cause of the failed fuse. Always replace a blown
fuse by a new fuse with the specified ratings.
MMM
L=)
Vii
4
QUT
It
eee
=
Power Supply
To AC outlet

MOBILE INSTALLATION
install
the
radiotelephone
in
a
safe,
convenient
position
inside
your
vehicle
that
minimizes
danger
to
your
passengers
and
yourself
while
the
vehicle
is
in
motion.
For
example,
consider
installing
the
radiotelephone
under
the
dash
in
front
of
the
passenger
seat
so
that
knees
or
legs
will
not
strike
the
radiotelephone
during
sudden
braking
of
your
vehicle.
Try
to
pick
a
well-
ventilated
location
that
is
shielded
from
direct
sunlight.
ANTENNA CONNECTION
Before operating mobile, you must first install an
efficient, well-tuned antenna. The success of your
mobile installation will depend largely on the type of
antenna
and
its
correct
installation.
The
radiotelephone
can
give
excellent
results
if
the
antenna
system
and
its
installation is given careful attention.
Your
choice
of
antenna
should
have
a
50
Q
impedance
to
match
the
radiotelephone
input
impedance.
Use
low-
loss
coaxial
feed
line
that
also
has
a
characteristic
impedance
of
50
.
Coupling
the
antenna
to
the
radiotelephone
via
feed
lines
having
an
impedance
other
than
50
Q
reduces
the
efficiency
of
the
antenna
system,
and
can
cause
interference
to
nearby
broadcast
television
receivers,
radio
receivers,
and
other
electronic
equipment.
CAUTION:
Transmitting
without
first
connecting
an
antenna
or
other
matched
load
may
damage
the
radiotelephone.
Always
connect
the
antenna
to
the
radiotelephone
before
transmitting.
DC POWER CABLE CONNECTION
Route
the
DC
power
cable
supplied
with
the
radiotelephone
directly
to
the
vehicle’s
battery
terminals
using
the
shortest
path
from
the
radiotelephone.
If
using
a
noise
filter,
it
should
be
installed
with
an
insulator
to
prevent
it
from
touching
metal
on
the
vehicle.
Itis
not
recommended
to
use
the
cigarette
lighter
socket
since
some
cigarette
lighter
sockets
introduce
an
unacceptable
voltage
drop.
To prevent the risk of short circuits, disconnect other
wiring from the negative (-) battery terminal before
connecting the radiotelephone. Confirm the correct
polarity
of
the
connections
before
attaching
the
power
cable; red connects to the positive (+) terminal, black
connects to the negative (-) terminal. Use the full
length of the cable without cutting off excess even if the
cable is longer than required. !n particular, never
To antenna
remove the fuse holders from the cable. After
completing radiotelephone connections to the battery,
then reconnect any wiring removed from the negative
terminal.
If the power cable must be routed through a hole in the
vehicle chassis or body, for example in the firewall at the
front of the passenger compartment, use a rubber
grommet to protect the cable from abrasion. The entire
length of the cable must be dressed so it is isolated from
heat and moisture. After the cable is in place, wind
heat-resistant tape around the fuse holder to protect it
from moisture. Tie down the full run of cable.
The vehicle battery must have a nominal rating of 12 V.
Never connect the radiotelephone to a 24 V battery. Be
sure to use a 12 V vehicle battery that has sufficient
current capacity. If the current to the radiotelephone is
insufficient, the Display may darken during transmission,
or transmit output power may drop excessively.
Only after completing the installation, connect the
radiotelephone’s power supply connector to the DC
power cable. Press the connectors firmly together until
the locking tab clicks.
Note: If you use the radiotelephone for a long period when the
vehicle battery is not fully charged, or when the engine is OFF, the
battery may become discharged, and will not have sufficient reserves
to start the vehicle. Avoid using the radiotelephone under these
conditions.
@ Replacing Fuses
If the fuse blows, determine the cause then correct
the problem. Refer to additional information
including fuse ratings on page 2.
CAUTION: Replace blown fuses only after investigating and
correcting the cause of the failed fuse. Always replace a blown
fuse by a new fuse with the specified ratings.
GROUND CONNECTION
For a mobile installation, it is extremely important to
securely connect a low-resistance ground strap from the
radiotelephone GND terminal to the metal vehicle
chassis. This connection is necessary since mobile
antennas are physically small and, therefore, less
efficient than larger base station antennas. If a strap is
not available, a large gauge copper wire is suitable.
Always clean paint or dirt from the vehicle connection
point and expose bare metal before connecting the
ground. A high-quality ground installation significantly
improves the performance of a mobile antenna.
12V battery

GETTING ACQUAINTED
FRONT PANEL
@ POWER switch
Press and hold down briefly to switch ON the
radiotelephone power. Press again and hold briefly to
switch OFF the power.
@ PHONES jack
Connect headphones to this jack. Use headphones
having 4 to 32 Q impedance. You can also use stereo
headphones. When headphones are used, no sound is
heard from the internal (or optional external) speaker.
Use a 6.0 mm (1/4") diameter, 2-conductor (mono) or
3-conductor (stereo) plug.
@ _ ATTUNE button
Starts or stops the internal or external antenna tuner.
@ SCAN button
Starts or stops the Scan function.
© > MENU button
Press to access or exit the Menu mode.
@® — MODE button
Selects the USB (J3E), LSB (J3E), AM (A3E), or
CW (A1A) operating mode.
@ DATA button
Selects the Data mode which automatically enables the
ACC 2 connector on the Rear Panel and disables the
MIC pin on the MIC connector on the Front Panel.
Buttons @, ©, ©, and
@ must be activated
by your Dealer to
function as described
in this manual.
MIC connector
Connect the supplied microphone to this connector.
Insert the connector from the microphone fully, then
screw the retaining ring clockwise until snug.
GND(STBY)®
MIC@ @GND(MIC)
STBY® @©NC
DOWN®G) ®sv/
UP@ approx 10mA
MIC connector
(Front Panel view)
@ SQUELCH control
Controls the Squeich threshoid level for muting the
receiver during no signal periods. Leave fully
counterclockwise for weak signal reception.
VOLUME control
Controls the receiver volume. Turn the control
clockwise to increase the volume; turn counterclockwise
to decrease the volume.
@ CHANNEL selector
Turn clockwise or counterclockwise to select a channel.
@ — CLARIFIER control
Used for making minor adjustments of the receiver
frequency. Turning the control shifts the receiver
frequency to either side of the displayed frequency.
@® INTERNAL SPEAKER
Receiver audio is heard from this speaker if no external
speaker or headphones are connected.

REAR PANEL
@ GND terminal
Connect a heavy gauge wire or copper strap between
the GND terminal and the nearest earth ground.
(2 ‘AT connector
Mates with the connector on the cable supplied with the
optional KAT-1 or MAT-100 External Tuner.
(3) ANT connector
Connect the feed line from your 50 Q antenna to this
connector. Mates with a PL-259 male connector.
@ Power Input DC 13.6 V connector
Connect a 13.6 V DC power source. Use the supplied
cable with a regulated DC power supply.
© ALC jack
Used for connecting the Automatic Level Control voltage
to an external linear amplifier. Mates with an RCA pin
plug.
© RELAY jack
Provides a ground on transmit. The relay contact
capacity is 30 VDC /0.5 A. Mates with an RCA pin
plug.
@ CWKEY jack
Used for connecting a key for CW operation. Mates
with a 6.0 mm (1/4") 2-conductor plug. External
electronic keyers must use positive keying to be
compatible with this radiotelephone. Use a shielded
cable between the key and the radiotelephone. Open
terminal voltage is approximately 5 V DC.
VOX/ ANTI DELAY controls
Used for adjusting the Voice-operated Transmit (VOX)
function.
@ EXT SP jack
Used for connecting an external 4 ~ 8 Q speaker.
Mates with a 3.5 mm (1/8") diameter, 2-conductor
(mono) plug. Connecting an external speaker cuts off
the audio automatically to the internal speaker.
ACC 2 connector
Mates with an 8-pin male DIN connector for connecting
various accessory equipment.
@) ACC 1 connector
Used for connecting the optional IF-232C Interface Unit.
This unit allows radiotelephone control from a computer.
Mates with a 6-pin male DIN connector.

DISPLAY
NB SCAN LOCK OUT
$1 38 5 7 9 20 40 dB
nue
RF 2 4 6 8 10
HML al
®
Appears while receiving with the squelch open.
®
Appears while transmitting or while the antenna tuner is
tuning.
@ NB
Appears while the Noise Blanker function is ON.
@ TUNE
Blinks while the antenna tuner is presetting or tuning.
Remains ON after a good match is obtained with the
antenna system.
© SCAN
Appears while the Scan function is activated.
© S.CALL
Appears while the Selective Call function is activated.
@ LOCKOUT
Appears when a channel is locked out from the Scan
function. These channels are not scanned.
MENU
Appears while the Menu system is being accessed.
© 48
Shows the selected channel number or, while accessing
the Menu mode, shows the selected Menu number.
Your Dealer may have programmed the radiotelephone
SO as not to display channel numbers.
CH
Appears while the Channel made is selected.
O HHRRRRE
Shows the receive and transmit frequencies or
messages that are stored by your Dealer. The
messages may include alphanumeric characters,
spaces or symbols.
@ : soaeeeee ER <
While receiving, serves as an S-meter to display the
received signal strength. While transmitting, serves as
a relative transmit RF meter. While acting as an RF
meter, a full-scale indication corresponds to the
programmed maximum power.
@® HML
One of these characters appear as an indication of the
transmit power level. The characters represent High,
Medium, and Low power respectively. If none of these
characters are visible, either the maximum transmit
power is selected, or the Dealer has disabled this
character display.
CLARI
Appears while the CLARIFIER control is turned from its
detent “0” position.
@® USB
Appears while Upper Sideband mode is selected.
LSB
Appears while Lower Sideband mode is selected.
@ AM
Appears while Amplitude Modulation mode is selected.
Cw
Appears while Continuous Wave (Morse) mode is
selected.
@ DATA
Appears while Data mode is selected.

MICROPHONE
SUPPLIED
OPTIONAL
(SUPPLIED WITH KPE-1 SELECTIVE CALL UNIT)
@ PTT (Push-to-Talk) switch
The radiotelephone is placed in transmit mode when
this non-locking switch is held down. Releasing the
switch returns the radiotelephone to receive mode.
@ _UP/DWN buttons
Press these buttons to step through the channels similar
to using the CHANNEL selector. Holding a button down
sequentially steps through all channels.
@ KEYPAD
Use for entering the digits when placing a selective call.
OPERATING BASICS
Note: The radiotelephone outputs a short beep each time a button
is pressed and the button stroke is accepted.
SWITCHING POWER ON/OFF
Switch ON the DC power supply, then press and hold
down [POWER] until “HELLO” appears on the Display.
To switch OFF the radiotelephone, press [POWER]
again.
+ After the radiotelephone has been switched ON, it
can then be switched OFF or ON by using only the
power switch on the DC power supply.
ADJUSTING VOLUME
Turn the VOLUME control clockwise to increase the
audio level; turn counterclockwise to decrease the level.
———_
KENWOOD
ADJUSTING SQUELCH
The purpose of squelch is to silence audio output from
the speaker when no signals are present. Setting the
squelch threshold too high causes the squelch to
remain closed while a weak signal is present. Setting
the threshold too low allows noise to be heard between
transmissions from other stations.
Turn the SQUELCH control to just eliminate the
background noise when no signal is present. If signals
are weak, set the control fully counterclockwise.

SELECTING A CHANNEL
Turn the CHANNEL selector to choose a channel.
* When using the microphone supplied with the
optional KPE-1 Selective Call Unit, you can press
Microphone [UP] or Microphone [DWN] to choose
channels. Holding either button down sequentially
switches through all channels.
SELECTING A MODE
The [MODE] button must be activated by your
Dealer to function as described here.
The mode stored with each channel can be temporarily
changed. To change the operating mode, press
[MODE]. Each time this button is pressed, the mode
changes in a cyclical manner as shown below:
[_ USB —— LSB 7]
CW -—— AM
To select Data mode, press [DATA] while in USB or
LSB mode. The Dealer sets either AFSK or FSK
operation for use in Data mode. If AFSK has been set,
then “USB” or “LSB” plus “DATA” appear. When FSK
has been set, only “DATA” appears.
Pressing [MODE], pressing [DATA], or changing the
channel after entering Data mode cancels Data mode.
TRANSMITTING
The cooling fan operates automatically when long
transmissions are made or after extended operation in
the High power mode. Also, the Rear Panel heat sink
temperature will increase. The protection circuit in the
radiotelephone activates if the temperature rises over
the design limit. In this case, the output power is
automatically reduced to the Low position. Although the
“L” indicator does not appear, the power meter
indication will be less than full scale, and “THERMAL
PROTECTION” appears.
You cannot transmit on a channel that has only a
receive frequency stored. Attempting this causes
“RX ONLY’ to appear.
@ Changing Transmit Power
You can change the default transmit power setting
stored for a channel by accessing the Menu mode.
Refer to Menu Setup on page 10 for details.
However, you cannot change the transmit power
beyond the limits specified by the Dealer.
@ Voice Modes
1 Select a voice mode (USB, LSB, AM) channel.
2 Press and hold down the PTT switch.
* “TX” appears.
* Refer to “VOX” below for information on
automatic TX/RX switching.
3 Speak into the microphone holding it about
5 cm (2 in.) from your mouth for best results.
Speak in a normal tone and level of voice.
4 When you have finished transmitting, release the
PTT switch to return to the receive mode.
* The “TX” indicator disappears.
@ VOX (Voice-operated Transmit)
VOX must be activated by the Dealer before you
can use this function.
VOX eliminates the necessity of manually switching
to the transmit mode each time that you transmit.
The radiotelephone automatically switches to
transmit when the VOX circuitry senses that you
have begun speaking into the microphone.
The VOX function has three adjustments on the
Rear Panel as follows:
VOX control
Adjust this control to set the VOX amplifier sensitivity
to the correct level for your voice. When set
correctly, the radiotelephone changes to the transmit
mode immediately after you begin speaking into the
microphone.
ANTI control
VOX operation is sometimes difficult when using
high speaker volumes. Adjust this control to reduce
the tendency of the radiotelephone to switch into
transmit mode due to the speaker output. Use the
minimum ANTI control settings to achieve reliable
VOX operation.
DELAY control
Adjust this control to change the amount of time that
the radiotelephone remains in the transmit mode
after you stop speaking.

m@ CW Mode
1 Select a CW channel.
2 With a CW key connected to the Rear Panel,
begin sending.
* Closing the key contacts causes the
radiotelephone to automatically switch into
transmit mode, and “TX” appears.
S138 5 7 8 20 40 cB
eueneene ee
RF 2 4 6 8 10
3 Stop sending.
+ The radiotelephone automatically changes
back to the receive mode a moment after you
stop sending, and “TX” disappears.
Note: Adjusting the DELAY control on the Rear Panel allows
you to vary the time that the radiotelephone waits before
returning to receive mode after you stop sending. The same
control allows you to select full break-in (receiver ON
continuously except while key is down).
DATA OPERATION
The [DATA] button must be activated by your
Dealer to function as described here. Also, the
Dealer sets either AFSK or FSK operation, FSK
shift, key-down polarity, high/low tone, and FSK
Reverse functions for your radiotelephone.
FSK MODE
1 Select an FSK channel, then press [DATA].
* “DATA” appears (“USB’/“LSB” disappears).
2 Following the instructions provided with your
Multimode Communications Processor (MCP) or
Terminal Unit (TU), begin sending data.
* “TX” appears each time the radiotelephone
enters transmit mode.
40 dB
a
10
$1 3 5 7 9 20
unseen
RF 2 4 6 8
AFSK MODE
1 Select an AFSK channel, then press [DATA].
¢ “DATA” plus “LSB” or “USB?” is visible.
CH
2 Following the instructions provided with your
Multimode Communications Processor (MCP) or
Terminal Node Controller (TNC), begin sending data.
* “TX” appears each time the radiotelephone
enters transmit mode.
sit 9 5 7 8 20 40 cB
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RF 2 4 6 8 10

MENU SETUP
Some functions on this radiotelephone are selected or
configured via a software-controlled Menu instead of
physical controls on the radiotelephone. Once familiar
with the Menu system, you will appreciate the versatility
it offers.
CHANGING MENU SETTINGS
| The [MENU] button must be activated by your ;
Dealer to function as described here.
The following procedure explains how to check or
change any of the Menu items.
1 Press [MENU].
2 Press [MODE] or [DATA] to select the desired Menu
number.
¢ [DATA] increments the Menu number; [MODE]
decrements the Menu number.
« Amessage that briefly describes the selected
Menu item scrolls. This message can be
interrupted by turning the CHANNEL selector.
POWE
3 Turnthe CHANNEL selector to choose the desired
selection for the Menu number.
4 Press [MENU] again to exit Menu mode.
Settings for Transmit Power and Channel Lockout can
only be done by accessing Menu Setup. Also, the
settings for these functions apply only to the channel
selected at the time the setting is changed. Therefore,
before changing these functions, first select the
applicable channel. Refer to additional information for
Channel Lockout on page 11.
10
MENU CONFIGURATION
Note:
@ Menu Nos. 08~15 may be unavailable depending on the Dealer
Settings.
@ Without the optional KPE-1 Selective Cail Unit installed, Menu
Nos. 06 and 07 can be accessed, but they cannot be used.
: ow ea
NB
(Noise
Blanker)
OFF/
ON
Alphanumeric
display
OFF/
ON
2 k
Memory channel
OFF/
05 Busy stop Time operated (TO)/
Carrier operated (CO)
[06 | Selesioncat | OFF/ON |
Identification code
Foe | wvcode | vm o00-000 |
Foe | wBote | ven 00-000
AAAAAAA~ZZZZZZZ,
0000000~9999999,
:
1*%<" is used as a wild card.
miscellaneous symbols
AAAAAAA~ZZZZZZZ,
0000000~9999999,
miscellaneous symbols
AAAAAAA~ZZZ2Z22Z2ZZ,
0000000~9999999,
miscellaneous symbols
AAAAAAA~ZZZ2ZZZZ,
0000000~9999999,
miscellaneous symbols
Note: Default selections are shown in bold face in the above table.
MEMORY BACKUP
This radiotelephone contains an EEPROM to retain
channel data for channels 1~10. Turning OFF the
POWER switch, or a power failure, will not erase this
memory.
A lithium battery is installed that preserves Display and
setting data whether the radiotelephone is switched ON
or OFF. The lithium battery should last for
approximately five years. When the battery discharges,
erratic information may appear on the Display. Your
KENWOOD Dealer should replace the lithium battery
when the battery becomes discharged.

SCAN
Scan allows each of the channels that has a receive
frequency stored to be automatically monitored for
activity.
BUSY FREQUENCY STOP
The radiotelephone automatically stops scanning when
a signal is detected if Busy Frequency Stop is switched
ON by Menu No. 05. The radiotelephone remains on
the same channel for either a short time or until the
‘signal drops depending on which Scan Resume method
is selected (see below). The squelch must be adjusted
to the noise threshold point with no signals present for
Busy Frequency Stop to work.
If Busy Frequency Stop is switched OFF by Menu
No. 05, then all channels that contain a receive
frequency are scanned, but the scan never stops on any
channel.
@ Scan Resume Methods
Scan Resume controls when the radiotelephone
continues scanning after stopping due to a busy
channel.
Time-operated Scan: After stopping, Scan checks
the busy channel approximately three seconds later.
If the channel is still busy, Scan waits another three
seconds then resumes scanning. If the channel is
not busy three seconds after stopping, Scan
resumes immediately.
Carrier-operated Scan: The radiotelephone
remains on the same channel until the signal drops,
then Scan resumes approximately two seconds later.
Select your preferred Scan Resume method via
Menu No. 05. The default is Time-operated.
Note: Carrier-operated Scan is automatically used for scanning
in Selective Call mode. However, when a signal is received,
scanning stops only during the unmuted period.
CHANNEL LOCKOUT
If you want to exclude any channels from being
scanned, these channels should be locked out.
1 Select the channel that you want to lock out.
2 Access Menu No. 04, then choose “ON”.
* “LOCK OUT” appears.
3 Exit Menu mode.
STARTING/ STOPPING SCAN
The [SCAN] button must be activated by your
Dealer to function as described here.
To start or stop scanning, press [SCAN].
* Youcan also press Microphone PTT to stop
scanning.
« Ifall channels are locked out or if only one channel
has a frequency stored, pressing [SCAN] causes the
radiotelephone to generate a triple error beep.
NOISE BLANKER
The Noise Blanker is effective in reducing or eliminating
pulse-type noise. Switch the Noise Blanker OFF or ON
by Menu No. 02.
CLARIFIER
The CLARIFIER control changes the receive frequency
(without affecting the transmit frequency) by +1.1 kHz
using steps of 10 Hz. The Dealer may have modified
the function for an overall range of +110 Hz using steps
of 1 Hz.
KPE-1 SELECTIVE CALL UNIT (OPTIONAL)
After the Dealer installs the optional KPE-1 Selective
Call Unit, you can place calls to other stations by using
the Microphone keypad to “dial” their unique
Identification code. You can also receive calls from
other stations that have dialed your Identification code.
In addition, Group calls allow you to call and
communicate with a group of stations in your system.
With a single call, you can contact a number of stations
at the same time, and transmit a message that will be
heard by all of these stations. The “%*” symbol is used
as a wild card when programming Group codes. For
example, sending the Group code “0%” would allow
you to contact all stations that have the number “O” in
the second digit of their Identification codes.
11

Group Communication Network Example
Predetermined frequency 14.482 MHz
Your Identification code 101
Member 1 Identification code 102
Member 2 Identification code 113
Member 3 Identification code 114
Group Group code 1%
Your Menu
Menu#07
Menu#08
Menu#09
Menu#10
Menu#11
MANUAL CALLING
1
2
Adjust the SQUELCH control for the noise threshold
so the channel noise is just muted.
Activate Selective Call via Menu No. 06.
¢ “S.CALL” appears, and the receiver audio is
muted.
Hold down Microphone PTT and enter a 3-digit
Identification code via the Microphone keypad.
* To make a call with a Group code, use “*" as a
wild card.
While still holding down Microphone PTT, enter “#’.
* You can release Microphone PTT immediately
after pressing “#”.
* The Identification code of the station being called
(their individual code or a Group code) plus your
identification code is transmitted.
* After the codes have been transmitted, the word
“CALL” plus the Identification code of the station
that was called are displayed. For example,
“CALL102”.
If you do not receive a response to your call within
about 10, 20, or 830 seconds (Dealer selectable),
your receiver mutes, and the radiotelephone is ready
to receive a selective call.
* Instead of waiting for the programmed time
period to pass, you can also press [#] again
(without pressing Microphone PTT) to restore the
radiotelephone standby status.
MEMORY CALLING
1 Adjust the SQUELCH control for the noise threshold
so the channel noise is just muted.
2 Activate Selective Call via Menu No. 06.
+ “S.CALL” appears, and the receiver audio is
muted.
3 Hold down Microphone PTT , then enter “” plus “A”,
“B”, “C”, or “D”. For example, “<A”.
4 While still holding down Microphone PTT, enter “#”.
* You can release Microphone PTT immediately
after pressing “#’.
* The Identification code that is stored in memory
A, B, C, or D plus the Character message that is
stored for the same memory are sent. For
example, the Identification code and Character
message stored in memory A are sent.
* After the code and message have been
transmitted, the word “CALL” plus the
Identification code of the station that was called
are displayed. For example, “CALL102”.
5 If you do not receive a response to your call within
about 10, 20, or 30 seconds (Dealer selectable),
your receiver mutes, and the radiotelephone is ready
to receive a selective call.
+ Instead of waiting for 10 seconds to pass, you
can also press [#] again (without pressing
Microphone PTT) to restore the radiotelephone
standby status.
RECEIVING
Adjust the SQUELCH control for the noise threshold so
the channel noise is just muted. After activating
Selective Call via Menu No. 06 and receiving a call, alert
beeps sound for about 10, 20, or 30 seconds (Dealer
selectable). Stop these beeps by pressing any button
or key. Pressing [#] stops the alert beeps and mutes
the receiver. Your Display may show either the
Identification code of the station calling you or a
Character message that the caller has sent. Pressing
[><] unmutes the receiver and allows you to monitor
channel activity.
If you receive a call while scanning, the receiver
unmutes and stops on the channel for a period of time.
Pressing Microphone PTT during this period cancels the
alert beeps and the Scan function, and places the
radiotelephone in the transmit mode; pressing [SCAN]
cancels the alert beeps and the Scan function.

CHANGING IDENTIFICATION CODES
Your Identification code has been stored in Menu No. 07
by the Dealer. This code is fixed. However, the Dealer
also stored Identification codes for the stations with
which you will communicate. You can use the
procedure below to change these codes. Acceptable
Group codes can be set by using “x” as a wild card
such as “4 Ox”, “0%”, “969 G”, or H>E5465€ a
1, Press [MENU] to enter Menu mode.
2 Press [MODE] or [DATA] to select Menu No. 08, 09,
10, or 11.
3 Enter the first digit by turning the CHANNEL
selector, or by pressing a Microphone [UP] or
[DWN] key.
Press [SCAN] to move to the next digit.
Enter the second digit.
Press [SCAN] to move to the third digit.
Enter the third digit.
Press [MENU] to exit Menu mode.
on Oa
CHANGING CHARACTER MESSAGES
The Dealer may have programmed the radiotelephone
so that it sends out Character messages instead of the
radiotelephone’s Identification code when you
communicate with other stations. The messages
programmed by the Dealer may be changed by you via
Menu mode.
1 Press [MENU] to enter Menu mode.
2 Press [MODE] or [DATA] to select Menu No. 12, 13,
14, or 15.
3 Enter a digit by turning the CHANNEL selector, or by
pressing a Microphone [UP] or [DWN] key.
MENU
al
lek:
/ pss
4 Press [SCAN] to move to the next digit.
5 Repeat Steps 3 and 4 to enter up to 7 digits.
6 Press [MENU] to exit Menu mode.
AUTOMATIC ANTENNA TUNER
PRESETTING (KAT-2 INTERNAL TUNER)
After each successful tuning session, the Preset
function stores the data for the position of the tuning
capacitors. Then, if the channel is changed, the Preset
function automatically positions the capacitors using
data that was previously stored for the new channel.
The first time that a channel is used, the Preset function
uses default data.
KAT-2 INTERNAL TUNER (OPTIONAL)
1 Press [AT TUNE] to start tuning.
* “TUNE” begins blinking.
TUNE
7 N
40 dB
a
10
s1 3 6b 7 9 20
suseeneeeE EE
RE 2 4 6 8
* Pressing [AT TUNE] again cancels tuning.
2 Tuning completes and the Preset data is updated.
* “TUNE” remains visible on the Display.
+ If tuning does not complete within approximately
20 seconds, five beeps sound over a 10 second
period and the tuning action stops.
KAT-1/ MAT-100 EXTERNAL TUNER (OPTIONAL)
Always switch OFF the power to the radiotelephone
before connecting the KAT-1 or MAT-100 tuner.
1 Press [AT TUNE] to start tuning.
¢ “TUNE” begins blinking.
TUNE
7 N
s1 3s sb 7 2 a 40 cB
aunweeeee EE
RF 2 4 6 8 10
* Pressing [AT TUNE] again cancels tuning.
2 Tuning completes.
« “TUNE” remains visible on the Display.
+ Iftuning does not complete within approximately
20 seconds, five beeps sound over a 10 second
period and the tuning action stops.
Note: Tuning with the KAT-1 or MAT-100 External Tuner does not
store any Preset data. Therefore, each time that a new channel is
selected, you must retune.

COMPUTER => RADIOTELEPHONE
INTERFACE
The TRC-80 interfaces easily with a computer by using
the optional IF-232C Interface Unit. After you manually
switch OFF the radiotelephone power, you can then
switch ON the radiotelephone power using commands
from the computer. Similarly, after switching OFF the
power from the computer, it is then possible to switch
ON the power from the Front Panel.
COMMUNICATION PARAMETERS
In order to control the radiotelephone with your
computer, you must set the correct communication
parameters in the computer terminal application.
Configure your computer application for 9600 bps, 8
data bits, 1 stop bit, and no parity.
HARDWARE DESCRIPTION
The TRC-80 uses a full-duplex, asynchronous, serial
interface for communicating through the female 6-PIN
DIN ACC 1 connector. Bytes are constructed with
1 start bit, 8 data bits, and 1 stop bit. No parity is used.
The pinout and the pin functions of the ACC 1
connector are as shown below:
ACC 1 CONNECTOR
@ @ ® Viewed from the
radiotelephone
Rear Panel
1 GND Signal ground =
2 TXD Transmit data Output
3 RXD Receive data Input
4 CTS Transmit enable Input
5
RTS
Receive
enable
Output
6 NC | Not connected =
GND: This is the signal ground pin.
TXD: The transmit data is the serial data transferred
from the radiotelephone to the computer. The output
uses negative logic.
RXD: The receive data is the serial data transferred
from the computer to the radiotelephone. The input
uses negative logic.
14
CTS: This signal is supplied from the computer to the
radiotelephone. It is used to inhibit transmit data from
the radiotelephone when the computer is not ready to
receive the data. The input uses positive logic. Inhibit is
requested when the level is low.
RTS: This signal is supplied from the radiotelephone to
the computer. It is used to inhibit transmit data from the
computer when the radiotelephone is not ready to
receive the data. The output uses positive logic.
Transmit data is stopped when the level is low.
Note: Refer to the Appendix beginning on page A1 for additional
information regarding computer control.

MAINTENANCE
The radiotelephone has been factory aligned and tested
to specification before shipment. Under normal
circumstances, the radiotelephone will operate in
accordance with these operating instructions. All
adjustable trimmers, coils and resistors in the
radiotelephone were preset at the factory. They should
only be readjusted by a qualified technician who is
familiar with this radiotelephone and has the necessary
test equipment. Attempting service or alignment without
factory authorization can void the radiotelephone
warranty.
When operated properly, the radiotelephone will provide
years of service without requiring further realignment.
The information in this section gives some general
service procedures requiring little or no test equipment.
SERVICE
if it is ever necessary to return the equipment to your
Deaier or Service Center for repair, pack the
radiotelephone in its original box and packing material.
Include a full description of the problems experienced.
Include both your telephone number and fax number (if
available) along with your name and address in case
the service technician needs to call for further
explanation while investigating the problem. Don’t
return accessory items unless you feel they are directly
related to the service problem.
You may return the radiotelephone for service to the
authorized KENWOOD Dealer from whom you
purchased it or any authorized KENWOOD service
center. A copy of the service report will be returned with
the radiotelephone. Please do not send subassemblies
or printed circuit boards. Send the complete
radiotelephone.
Tag all returned items with your name for identification.
Please mention the model and serial number of the
radiotelephone in any communication regarding the
problem.
SERVICE NOTE
If you desire to correspond on a technical or operational
problem, please make your note short, complete, and to
the point. Help us help you by providing the following:
1 Model and serial number of equipment
2 Question or problem you are having
3 Other equipment in your station pertaining to the
problem
Meter readings
5 Other related information (Menu setup, mode,
frequency, button sequence to induce malfunction,
etc.)
CAUTION: Do not pack the equipment in crushed newspapers for
shipment! Extensive damage may result during rough handling or
shipping.
Note:
@ Record the date of purchase, serial number and Dealer from
whom the radiotelephone was purchased.
@ For your own information, retain a written record of any
maintenance performed on the radiotelephone.
@ When claiming warranty service, please include a photocopy of
the bill of sale, or other proof-of-purchase showing the date of
sale.
CLEANING
The buttons, controls and case of the radiotelephone
are likely to become soiled after extended use. Remove
the controls from the radiotelephone and clean them
with a neutral detergent and warm water. Use a neutral
detergent (no strong chemicals) and a damp cloth to
clean the case.

TROUBLESHOOTING
The
problems
described
in
this
table
are
commonly
encountered
operational
malfunctions.
These
types
of
difficulties
are
usually
caused
by
improper
hook-up,
accidental
incorrect
control
settings,
or
operator
error
due
to
incomplete
programming,
and
are
not
caused
by
circuit
failure.
Please
review
this
table,
and
the
appropriate
section(s)
of
this
instruction
manual,
before
assuming
the
radiotelephone
is
defective.
The radiotelephone will not
power up after connecting a
13.6 V DC power supply and
pressing [POWER]. Nothing
appears on the Display, and
no receiver noise is heard.
No sound comes from the
speaker; signals cannot be
received.
The DC power supply is not switched
ON.
The power cable is faulty.
The power cable is not connected
securely.
A power cable fuse is open.
The VOLUME control is fully
counterclockwise.
The SQUELCH control is fully
clockwise.
The Microphone PTT switch is
pressed.
1
3
Switch ON the DC power supply.
Inspect the power cable. Confirm
polarities are correct.
Red: positive (+); Black: negative (-).
Confirm that the power connector is
locked against the radiotelephone
Rear Panel. Confirm the connections
to the DC power supply are secure.
Look for the cause of the blown fuse.
After inspecting and correcting any
problems, install a new fuse with the
same rating.
Turn the VOLUME contro! clockwise.
Turn the SQUELCH control
counterclockwise.
Release the Microphone PTT switch.
After
switching
ON
the
power,
;
The
input
voltage
is
outside
13.6
VDC_
|
Correct
the
input
voltage.
the Display is dark. +15% (11.6 to 15.6 V DC).
SSB
audio
quality
is
poor.
The
receiver
is
not
tuned
to
the
correct
{|
Turn
the
CLARIFIER
control
to
tune
the
frequency.
receiver
for
a
clearer
signal.
The
radiotelephone
is
The
Scan
function
is
working.
Press
[SCAN]
to
stop
scanning.
automatically changing
channels.
You cannot transmit even
though you press [PTT].
The antenna tuner will not
finish tuning successfully.
16
1 The microphone plug is not inserted
completely in the Front Panel MIC
connector.
Poor antenna connection
The selected channel is receive only.
You have selected the CW or DATA
mode instead of a voice mode.
Poor antenna connection
The antenna length is wrong.
If using an external tuner, it is not
grounded correctly.
Turn OFF the power, ensure the MIC
connector on the Front Panel has no
foreign objects in it, then plug in the
microphone connector. Secure the
connector with the locking ring.
Check the antenna system.
Select a channel programmed for
transmit and receive.
Press [MODE] to select a voice
mode.
Check the antenna system.
2 Use the correct antenna length.
Ground the tuner.

ACCESSORY CONNECTIONS
COMPUTER INTERFACE (ACC 1)
This
connector
allows
you
to
connect
a
computer
or
dumb
terminal
via
an
optional
IF-232C
Interface
Unit.
Refer
to
“COMPUTER
«=>
RADIOTELEPHONE
INTERFACE”
beginning
on
page
14
and
the
Instruction
Manual
supplied
with
the
IF-232C
for
further
information.
Personal computer/
dumb terminal
Power cable
RS-232C cable
PC-1A
PHONE
PATCH
CONTROLLER
(ACC
2)
The
PC-1A
Phone
Patch
allows
you
to
interface
the
radiotelephone
with
a
telephone
line.
To EXT. SP jack
External speaker
|) =p To radiotelephone's
Telephone line
MIC connector on the front panel
ANTENNA TUNER (AT)
if
using
an
optional
KAT-1
or
MAT-100
External
Tuner,
connect
it
here
using
the
cable
supplied
with
the
antenna
tuner.
KAT-1 or MAT-100
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