Kenwood th-k20a User Manual
INSTRUCTION MANUAL
144 MHz FM TRANSCEIVER
TH-K20A
TH-K20E
430 MHz FM TRANSCEIVER
TH-K40A
TH-K40E
NOTIFICATION
This equipment complies with the essential requirements of
Directive 1999/5/EC.
The use of the warning symbol means the equipment is subject
to restrictions of use in certain countries.
This equipment requires a licence and is intended for use in the
countries as below.
AT BE DK FI FR DE GR IS
IE IT LI LU NL NO PT ES
SE CH GB CY CZ EE HU LV
LT MT PL SK SI BG RO
© B62-2365-00 (K, E, M)
09 08 07 06 05 04 03 02 01 00
ISO3166
THANK YOU
We are grateful you decided to purchase this KENWOOD FM transceiver.
KENWOOD always provides Amateur Radio products which surprise and excite
serious hobbyists. This transceiver is no exception. KENWOOD believes that
this product will satisfy your requirements for voice communication.
MARKET TYPE CODES
K: The Americas
E: Europe
M: General
The market type code is printed on the bar-code label of the carton box.
WRITING CONVENTIONS FOLLOWED IN THIS MANUAL
The writing conventions described below have been followed to simplify
instructions and avoid unnecessary repetition.
Instruction Action
Press [KEY]. Momentarily press KEY.
Press [KEY] (1s). Press and hold KEY for 1 second or longer.
Press [KEY1], [KEY2].
Press [F] - [KEY].
Press [KEY] + Power ON.
Press KEY1 momentarily, release KEY1, then press
KEY2.
Press the F key to enter Function mode, then press
KEY to access its secondary function.
With the transceiver power OFF, press and hold
KEY while turning the transceiver power ON.
Information on Disposal of Old Electrical and Electronic Equipment and Batteries (applicable for EU
countries that have adopted separate waste collection systems)
Products and batteries with the symbol (crossed-out wheeled bin) cannot be disposed as
household waste.
Old electrical and electronic equipment and batteries should be recycled at a facility capable
of handling these items and their waste byproducts.
Contact your local authority for details in locating a recycle facility nearest to you.
Proper recycling and waste disposal will help conserve resources whilst preventing
detrimental effects on our health and the environment.
Notice: The sign "Pb" below the symbol for batteries indicates that this battery contains lead.
Firmware Copyrights
The title to and ownership of copyrights for firmware embedded in KENWOOD product memories
are reserved for
WHEN CONDENSATION OCCURS INSIDE THE TRANSCEIVER
Condensation may occur inside the transceiver in such a case where the room is warmed using
a heater on cold days or where the transceiver is quickly moved from a cold room to a warm room.
When condensation occurs, the microcomputer and/or the transmit/receive circuits may become
unstable, resulting in transceiver malfunction. If this happens, turn OFF the transceiver and just
wait for a while. When the condensation droplets disappear, the transceiver will function normally.
JVC KENWOOD Corporation
.
NOTICES TO THE USER
One or more of the following statements may be applicable:
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 to an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer for technical assistance.
ATTENTION: (USA only)
The RBRC Recycle seal found on
indicates
recycle Li-ion batteries after their operating life has expired. The RBRC program is
an alternative to disposing Li-ion batteries with your regular refuse or in municipal
waste streams, which is illegal in some areas.
For information on Li-ion battery recycling in your area, call (toll free)
1-800-8-BATTERY (1-800-822-8837).
KENWOOD
environment and conserve our natural resources.
KENWOOD
’s involvement in this program is part of our commitment to preserve our
’s voluntary participation in an industry program to collect and
KENWOOD
lithium-ion (Li-ion) battery packs
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device.
i
PRECAUTIONS
• Do not charge the transceiver and battery pack when they are wet.
• Ensure that there are no metallic items located between the transceiver and the battery
pack.
• Do not use options not specified by KENWOOD.
• If the die-cast chassis or other transceiver part is damaged, do not touch the damaged
parts.
• If a headset or headphone is connected to the transceiver, reduce the transceiver
volume. Pay attention to the volume level when turning the squelch off.
• Do not place the microphone cable around your neck while near machinery that may
catch the cable.
• Do not place the transceiver on unstable surfaces.
• Ensure that the end of the antenna does not touch your eyes.
• When the transceiver is used for transmission for many hours, the radiator and chassis
will become hot. Do not touch these locations when replacing the battery pack.
• Do not immerse the transceiver in water.
• Always switch the transceiver power off before installing optional accessories.
• For safety reasons, we recommend that the battery charger be connected to an easily
accessible AC socket.
Turn the transceiver power off in the following locations:
• In explosive atmospheres (inflammable gas, dust particles, metallic powders, grain
powders, etc.).
• While taking on fuel or while parked at gasoline service stations.
• Near explosives or blasting sites.
• In aircraft. (Any use of the transceiver must follow the instructions and regulations
provided by the airline crew.)
• Where restrictions or warnings are posted regarding the use of radio devices,
including but not limited to medical facilities.
• Near persons using pacemakers.
• Do not disassemble or modify the transceiver for any reason.
• Do not place the transceiver on or near airbag equipment while the vehicle is
running. When the airbag inflates, the transceiver may be ejected and strike the
driver or passengers.
• Do not transmit while touching the antenna terminal or if any metallic parts are
exposed from the antenna covering. Transmitting at such a time may result in a
high-frequency burn.
• If an abnormal odor or smoke is detected coming from the transceiver, switch the
transceiver power off immediately, remove the battery pack from the transceiver, and
contact your
• Use of the transceiver while you are driving may be against traffic laws. Please
check and observe the vehicle regulations in your area.
• Do not expose the transceiver to extremely hot or cold conditions.
• Do not carry the battery pack (or battery case) with metal objects, as they may short
the battery terminals.
KENWOOD
dealer.
ii
• Danger of explosion if the battery is incorrectly replaced; replace only with the same
type.
• When operating the transceiver in areas where the air is dry, it is easy to build up
an electric charge (static electricity). When using an earphone accessory in such
conditions, it is possible for the transceiver to send an electric shock through the
earphone and to your ear. We recommend you use only a speaker/microphone in
these conditions, to avoid electric shocks.
• When attaching a commercial strap to the transceiver, ensure that the strap is
durable. In addition, do not swing the transceiver around by the strap; you may
inadvertently strike and injure another person with the transceiver.
Information concerning the battery pack:
The battery pack includes flammable objects such as organic solvent.
Mishandling may cause the battery to rupture producing flames or extreme heat,
deteriorate, or cause other forms of damage to the battery. Please observe the
following prohibitive matters.
•
Do not disassemble or reconstruct battery!
The battery pack has a safety function and protection circuit to avoid danger. If they suffer
serious damage, the battery may generate heat or smoke, rupture, or burst into flame.
•
Do not short-circuit the battery!
Do not join the + and – terminals using any form of metal (such as a paper clip or
wire). Do not carry or store the battery pack in containers holding metal objects (such
as wires, chain-necklace or hairpins). If the battery pack is short-circuited, excessive
current will flow and the battery may generate heat or smoke, rupture, or burst into
flame. It will also cause metal objects to heat up.
•
Do not incinerate or apply heat to the battery!
If the insulator is melted, the gas release vent or safety function is damaged, or the
electrolyte is ignited, the battery may generate heat or smoke, rupture, or burst into flame.
•
Do not leave the battery near fire, stoves, or other heat generators (areas
reaching over 80°C/ 176°F)!
If the polymer separator is melted due to high temperature, an internal short-circuit
may occur in the individual cells and the battery may generate heat or smoke,
rupture, or burst into flame.
•
Avoid immersing the battery in water or getting it wet by other means!
If the battery becomes wet, wipe it off with a dry towel before use. If the battery’s
protection circuit is damaged, the battery may charge at extreme current (or voltage)
and an abnormal chemical reaction may occur. The battery may generate heat or
smoke, rupture, or burst into flame.
•
Do not charge the battery near fire or under direct sunlight!
If the battery’s protection circuit is damaged, the battery may charge at extreme
current (or voltage) and an abnormal chemical reaction may occur. The battery may
generate heat or smoke, rupture, or burst into flame.
•
Use only the specified charger and observe charging requirements!
If the battery is charged in unspecified conditions (under high temperature over the
regulated value, excessive high voltage or current over regulated value, or with a
remodeled charger), it may overcharge or an abnormal chemical reaction may occur.
The battery may generate heat or smoke, rupture, or burst into flame.
iii
•
Do not pierce the battery with any object, strike it with an instrument, or step
on it!
This may break or deform the battery, causing a short-circuit. The battery may
generate heat or smoke, rupture, or burst into flame.
•
Do not jar or throw the battery!
An impact may cause the battery to leak, generate heat or smoke, rupture, and/or
burst into flame. If the battery’s protection circuit is damaged, the battery may charge
at an abnormal current (or voltage), and an abnormal chemical reaction may occur.
The battery may generate heat or smoke, rupture, or burst into flame.
•
Do not use the battery pack if it is damaged in any way!
The battery may generate heat or smoke, rupture, or burst into flame.
•
Do not solder directly onto the battery!
If the insulator is melted or the gas release vent or safety function is damaged, the
battery may generate heat or smoke, rupture, or burst into flame.
•
Do not reverse the battery polarity (and terminals)!
When charging a reversed battery, an abnormal chemical reaction may occur. In
some cases, an unexpected large amount of current may flow upon discharging.
The battery may generate heat or smoke, rupture, or burst into flame.
•
Do not reverse-charge or reverse-connect the battery!
The battery pack has positive and negative poles. If the battery pack does not
smoothly connect with a charger or operating equipment, do not force it; check the
polarity of the battery. If the battery pack is reverse-connected to the charger, it will
be reverse-charged and an abnormal chemical reaction may occur. The battery may
generate heat or smoke, rupture, or burst into flame.
•
Do not touch a ruptured and leaking battery!
If the electrolyte liquid from the battery gets into your eyes, wash your eyes with
fresh water as soon as possible, without rubbing your eyes. Go to the hospital
immediately. If left untreated, it may cause eye-problems.
•
Do not charge the battery for longer than the specified time!
If the battery pack has not finished charging even after the regulated time has
passed, stop it. The battery may generate heat or smoke, rupture, or burst into
flame.
•
Do not place the battery pack into a microwave or high pressure container!
The battery may generate heat or smoke, rupture, or burst into flame.
•
Keep ruptured and leaking battery packs away from fire!
If the battery pack is leaking (or the battery emits a bad odor), immediately remove it
from flammable areas. Electrolyte leaking from battery can easily catch on fire and
may cause the battery to generate smoke or burst into flame.
•
Do not use an abnormal battery!
If the battery pack emits a bad odor, appears to have different coloring, is deformed,
or seems abnormal for any other reason, remove it from the charger or operating
equipment and do not use it. The battery may generate heat or smoke, rupture, or
burst into flame.
iv
CONTENTS
PREPARATION ................................................................................................... 1
SUPPLIED ACCESSORIES ........................................................................... 1
INSTALLING THE ANTENNA......................................................................... 1
INSTALLING THE BATTERY PACK .............................................................. 2
INSTALLING THE BELT CLIP ........................................................................ 2
CHARGING THE BATTERY PACK ................................................................ 3
CONNECTING TO THE PC............................................................................ 5
GETTING ACQUAINTED .....................................................................................6
PANEL ............................................................................................................ 6
DISPLAY ......................................................................................................... 8
BASIC OPERATION .......................................................................................... 10
SWITCHING THE POWER ON/OFF ............................................................ 10
ADJUSTING THE VOLUME ......................................................................... 10
ADJUSTING THE SQUELCH ....................................................................... 10
SELECTING A FREQUENCY....................................................................... 11
TRANSMITTING/ RECEIVING ..................................................................... 11
DIRECT FREQUENCY ENTRY .................................................................... 12
SELECTING AN OUTPUT POWER ............................................................. 12
BACKLIGHT ................................................................................................. 13
MONITOR ..................................................................................................... 13
LOCK FUNCTION ........................................................................................ 14
MENU SETUP .................................................................................................... 15
WHAT IS A MENU? ...................................................................................... 15
MENU ACCESS ........................................................................................... 15
MENU FUNCTION LIST ............................................................................... 16
MEMORY CHANNELS ...................................................................................... 18
SIMPLEX & REPEATER OR ODD-SPLIT MEMORY CHANNEL?............... 18
STORING SIMPLEX AND STANDARD REPEATER FREQUENCIES ........ 19
STORING ODD-SPLIT REPEATER FREQUENCIES .................................. 20
RECALLING A MEMORY CHANNEL ........................................................... 20
NAMING A MEMORY CHANNEL ................................................................. 21
MEMORY DISPLAY TYPE ........................................................................... 22
CLEARING A MEMORY CHANNEL ............................................................. 22
CALL CHANNEL ........................................................................................... 23
MEMORY CHANNEL TRANSFER ............................................................... 24
CHANNEL DISPLAY MODE ......................................................................... 24
SCAN ................................................................................................................. 26
BAND SCAN ................................................................................................. 26
PROGRAM SCAN ........................................................................................ 27
MEMORY SCAN ........................................................................................... 28
CALL SCAN .................................................................................................. 28
PRIORITY SCAN .......................................................................................... 28
MEMORY CHANNEL LOCKOUT ................................................................. 29
SELECTING A SCAN RESUME METHOD .................................................. 30
v
OPERATING THROUGH REPEATERS ............................................................ 31
SELECTING AN OFFSET DIRECTION (SHIFT) .......................................... 31
SELECTING AN OFFSET FREQUENCY ..................................................... 32
TONE FUNCTION ........................................................................................ 32
AUTOMATIC REPEATER OFFSET ............................................................. 34
REVERSE FUNCTION ................................................................................. 34
TRANSMITTING A 1750 Hz TONE .............................................................. 35
SIGNALING ........................................................................................................ 36
CTCSS .......................................................................................................... 36
DCS .............................................................................................................. 37
CROSS TONE .............................................................................................. 39
DTMF FUNCTIONS ............................................................................................ 40
MANUAL DIALING ....................................................................................... 40
AUTOMATIC DIALER ................................................................................... 40
ADJUSTING THE DTMF CODE TRANSMIT SPEED .................................. 41
DTMF TX HOLD ........................................................................................... 42
ADJUSTING THE PAUSE DURATION ........................................................ 42
DTMF LOCK ................................................................................................. 42
AUXILIARY FUNCTIONS .................................................................................. 43
PROGRAMMABLE VFO ............................................................................... 43
FREQUENCY STEP SIZE ............................................................................ 44
TONE ALERT ............................................................................................... 44
POWER ON MESSAGE ............................................................................... 45
BEEP FUNCTION ......................................................................................... 46
LOCK TYPE .................................................................................................. 46
BATTERY SAVER ........................................................................................ 47
APO (AUTO POWER OFF) .......................................................................... 48
NARROW BAND FM OPERATION .............................................................. 48
BEAT SHIFT ................................................................................................. 49
VOX (VOICE-OPERATED TRANSMIT) ....................................................... 49
TIME-OUT TIMER ........................................................................................ 51
BUSY CHANNEL LOCKOUT........................................................................ 51
TX INHIBIT ................................................................................................... 52
MICROPHONE SENSITIVITY ...................................................................... 52
PROGRAMMABLE FUNCTION KEYS ......................................................... 52
MICROPHONE KEY LOCK .......................................................................... 53
BATTERY TYPE ........................................................................................... 53
WEATHER ALERT (TH-K20A K TYPE ONLY) ................................................. 54
WEATHER ALERT ON/ OFF ........................................................................ 54
WEATHER CHANNEL .................................................................................. 54
WEATHER CHANNEL SCAN ....................................................................... 54
APPENDIX ......................................................................................................... 55
OPTIONAL ACCESSORIES ......................................................................... 55
MAINTENANCE ............................................................................................ 55
TROUBLESHOOTING .................................................................................. 56
TRANSCEIVER RESET ............................................................................... 58
SPECIFICATIONS ........................................................................................ 59
vi
PREPARATION
SUPPLIED ACCESSORIES
After carefully unpacking the transceiver, identify the items listed in the table
below. We recommend you keep the box and packaging for shipping.
−
−
−
−
Quantity
1
1
1
1
−
−
−
−
−
−
−
Item Comments
Antenna 1 1 1
Li-ion battery pack KNB-63L 1 1 1
Battery charger with AC adapter (KSC-35S) 1 1 1
Belt clip KBH-18 1 1 1
Warranty card 1 1
English 1 1 1
French 1 1
Spanish 1 1
Instruction manual
Italian
German
Dutch
Turkish
Chinese 1
K type E type M type
INSTALLING THE ANTENNA
Hold the supplied antenna by its base, then screw it into the connector on the top
panel of the transceiver until secure.
Note: The antenna is neither a handle, a key ring retainer, nor a speaker/ microphone
attachment point. Using the antenna in these ways may damage the antenna and degrade
your transceiver’s performance.
1
INSTALLING THE BATTERY PACK
Note: Because the battery pack is provided uncharged, you must charge the battery pack
before using it with the transceiver. To charge the battery pack, refer to “CHARGING THE
BATTERY PACK ” {page 3}.
1 To install the battery pack, align the base of the
battery pack with the transceiver, then press
the battery pack into place until the lock lever is
secure.
2 To remove the battery pack, push the lock lever
up, then pull the battery pack away from the
transceiver.
Lock lever
Lock lever
INSTALLING THE BELT CLIP
If desired, you can install the supplied belt clip to the transceiver.
1 Remove the battery pack, as described above.
2 To install the belt clip, align the guides of the
belt clip with the grooves on the rear of the
battery pack, then slide the belt clip into place
until the lock lever is secure.
3 To remove the belt clip, push the lock lever
towards the transceiver while sliding the belt
clip up.
2
Belt clip
Lock lever
CHARGING THE BATTERY PACK
The battery pack can be charged after it has been installed onto the transceiver.
(The battery pack is provided uncharged for safety purposes.)
1 Confirm that the transceiver power is OFF.
• While charging the transceiver with a battery pack
installed, be sure to turn the transceiver power
OFF.
2 Plug the AC adapter cable into the jack located
on the rear of the charger.
3 Plug the AC adapter into an AC outlet.
4 Slide a battery pack or a transceiver equipped
with a battery pack into the charging slot.
• Make sure the metal contacts of the battery pack
mate securely with the charger terminals.
• The indicator lights red and charging starts.
5 When charging is completed, the indicator
lights green. Remove the battery pack or the
transceiver from the charging slot.
• When the charger will not be used for a long time,
unplug the AC adapter from the AC outlet.
Charging slot
Indicator
Note:
◆ Using the transceiver while charging its battery pack will interfere with correct charging.
◆ If the operating time of a battery pack decreases although the battery pack is fully and
correctly charged, the battery pack life is over. Replace the battery pack.
◆ The ambient temperature should be from 41°F (5°C) to 104°F (40°C) while charging is in
progress.
◆ The charging times provided are obtained when a battery pack discharged to 3 V/cell x 2
is charged at normal temperatures. This charging time varies depending on the degree of
discharge and the ambient charging temperature.
◆ This charger may be suitable to charge battery packs not listed herein, due to further
technology development.
◆ If the battery pack contacts are not properly mated with the charger terminals, the
indicator may blink red or may remain unlit. To resolve this problem, reinsert the battery
pack after cleaning the battery pack contacts and the charger terminals.
◆ When using this equipment near a radio or television, you may experience interference
with reception.
◆ While charging, do not connect the PC Interface cable to the transceiver.
3
Approximate Charging Times
3 hours
Charger Status Table
Indicator color Meaning
Red
Blinking Red
Green
Alternates flashing green
and orange
A battery pack is in the charging slot and charging has
started.
The battery pack is defective or the battery pack
contacts are not properly mated with those of the
charger.
Charging is completed; remove the battery pack or the
transceiver from the charging slot.
The temperature of the battery pack has not satisfied
the charging start temperature. Remove the battery
pack from the charger and wait until it reaches a normal
temperature before charging it again.
Battery Life
Before you operate the transceiver outside, using a battery pack, it is important to
know how long the battery pack will last. The operating times listed in the table
below are measured under the following cyclic conditions:
TX: 6 seconds, RX: 6 seconds, Stand-by: 48 seconds (Battery Saver: ON)
We recommend you carry extra battery packs with you, in case the battery pack
becomes depleted.
Battery Type Output Power Operating Time/ Hours (Approx.)
High 6 (KNB-63L) 8 (KNB-65L)
KNB-63L/ KNB-65L
(7.4 V)
BT-16 (9 V)
<AAA (LR03) alkaline
batteries x 6>
Medium 8.5 (KNB-63L) 11.5 (KNB-65L)
Low 10.5 (KNB-63L) 14 (KNB-65L)
High 6
Medium 8
Low 10
Note:
◆ The high power transmission output while using the battery case (BT-16) is 3.5 W and
lower. Additionally, as is characteristic of alkaline batteries, transmission output will
decrease as time progresses. We recommend using low power when using the battery
case.
◆ Internal resistance levels differ, depending on the battery, so when using Alkaline
batteries there are times when the actual operating time may be shorter than normal.
4
Connecting to a Cigarette Lighter Socket
To use the cigarette lighter socket, use the optional KVC-22 DC vehicular charger
adapter. When using the Charger, attach it to the vehicle as shown below.
To the jack
To the cigarette lighter socket
Charger + KVC-22
Note: Refer to the KVC-22 instruction manual for how to connect the charger to a cigarette
lighter socket.
CAUTION: Do not fix the Charger near an airbag nor in places where it will be a hindrance
while driving.
DC power cable (supplied with the KVC-22)
CONNECTING TO THE PC
Use the optional PG-4Y PC interface cable to connect the transceiver to a PC.
Plug the Speaker/ Microphone connector to the SP/MIC jack and the DB-9
connector to one of the COM (serial) ports on your PC.
To PC
PG-4Y
To download the MCP-5A software, go to:
http://www.kenwood.com/i/products/info/amateur/software_download.html
(This URL may change without notice.)
Note: No guarantee is provided for data that may be erased or destroyed due to
malfunctions of this unit or your computer.
5
GETTING ACQUAINTED
PANEL
Microphone
PWR/VOL control
Turn clockwise to switch the transceiver ON. To switch the transceiver OFF,
turn counterclockwise until a click sounds. Rotate to adjust the volume level.
TX-RX LED
Lights red while transmitting and green while receiving a signal.
ENC Control
Rotate to select an operating frequency, Memory channel, Menu number, and
setting value or to change the scan direction, etc.
[PTT] (Push to talk) switch
Press and hold, then speak into the microphone to transmit.
[MONI]
Press and hold to unmute the speaker in order to monitor signals. Release
[MONI] to return to normal operation {page 13}.
Speaker
6
Keypad
Use the keypad to perform the following operations. Additionally, you can use
the 10-key keypad for direct frequency entry and manually transmitting DTMF
tones.
Key name Press Operation Ref. page
[KEY]
[F] A
[VFO] B
[MR] C
[CALL] D
[MENU] 1 [KEY] To enter Menu mode.
[TONE] 2 [KEY]
[LOW] 3 [KEY] To select an Output power.
[SQL] 4 [KEY] To enter Squelch Level Adjustment mode.
[T.SEL] 5
[
] 6 [KEY] To enter the Tone Alert function setup mode.
[SHIFT] 7 [KEY] To select an Offset direction.
[REV] 8 [KEY] To turn the Reverse function ON or OFF.
[PF] 9 [KEY] To activate the Program function.
[F] - [KEY] To turn the Function OFF.
[KEY] (1s) To turn the Lock function ON and OFF.
[KEY] To enter VFO mode.
[F] - [KEY]
[KEY] (1s) To start Band scan.
[KEY] To enter Memory Channel mode.
[F] - [KEY]
[KEY] (1s) To start Memory scan
[KEY] To select the Call channel.
[F] - [KEY]
[KEY] (1s) To start CALL scan.
[KEY]
[KEY] (1s)
To enter MHz tuning mode.
To turn the Function ON.
To copy the current Memory channel or Call
channel to the VFO (memory shift).
To store the current operating frequency in the
Memory channel.
To store the current operating frequency to the
Call channel.
To select the Signaling (Tone, CTCSS, DCS or
Cross tone) function.
To enter the Tone frequency, CTCSS
frequency or DCS code setup mode.
To start Tone frequency, CTCSS frequency or
DCS code scan.
11
–
14
11
24
26
18
19
28
23
28
15
32, 36,
37, 39
12
10
32, 36,
37, 39
44
31
34
52
7
Key name Press Operation Ref. page
[LAMP]
[KEY] To turn the Backlight ON.
13
[F] - [KEY] To keep the Backlight ON continuously.
[STEP] 0 [KEY] To enter the Frequency step size setup mode.
[ENT] # [KEY]
To enter Direct frequency entry mode.
44
12
MIC/ SP Jack
Connect the optional Speaker/ Microphone to this jack.
Also, attach an optional PG-4Y PC interface cable to this jack, to connect the
transceiver to a PC {page 5}.
DISPLAY
Indicator Description
Appears while using Medium output power.
Appears while using Low output power.
Appears when the Cross Tone function is ON.
Appears when the Tone function is ON.
Appears when the CTCSS function is ON.
Appears when the DCS function is ON.
Appears when Weather Alert is ON. Blinks when
receiving a signal. (TH-K20A K type only)
Appears when the Reverse function is ON.
8
Indicator Description
Appears when the Shift function is set to plus.
Appears when the Shift function is set to minus.
Appears when the Shift function is set to –7.6 MHz.
(TH-K40E (E type) only)
Displays the operating frequency, setting
information, etc.
Displays the Memory channel number.
Appears when the Memory channel Lockout
function is ON, for the selected Memory channel.
Appears when the selected Memory channel is
registered while in Memory Input mode.
Appears while in Narrow FM mode.
Appears while in Function mode.
Performs as an S meter when receiving a signal
and displays the battery power remaining while Low
power transmitting.
Appears when the Tone Alert function is ON.
Appears when Priority scan is ON.
Appears when the VOX function is ON.
Appears when the Lock function is ON.
9
BASIC OPERATION
SWITCHING THE POWER ON/OFF
Turn the PWR/VOL control clockwise to switch the transceiver ON.
• The power on message momentarily appears on the display.
Turn the PWR/VOL control counterclockwise to switch the transceiver OFF.
ADJUSTING THE VOLUME
Rotate the PWR/VOL control to adjust the volume. Clockwise increases the
volume and counterclockwise decreases it.
• If you are not receiving a signal, press and hold [MONI] to unmute the speaker, then
adjust the volume control to a comfortable audio output level.
ADJUSTING THE SQUELCH
The purpose of Squelch is to mute the speaker when no signals are present.
With the squelch level correctly set, you will hear sound only while actually
receiving signals. The higher the selected squelch level, the stronger the signals
must be to receive. The appropriate squelch level depends on the ambient RF
noise conditions.
1 Press [SQL].
• The squelch level appears on the display.
2 Rotate the ENC control to adjust the level.
• Select the level at which the background noise is just eliminated when no signal is
present.
• The higher the level, the stronger the signals must be to receive.
• 6 different levels can be set. 0: Minimum ~ 5: Maximum; 2 is the default value.
3 Press any key other than [MONI] or [LAMP] to store the new setting and exit
the squelch adjustment.
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SELECTING A FREQUENCY
VFO MODE
This is the basic mode for changing the operating frequency. Rotate the ENC
control clockwise to increase the frequency and counterclockwise to decrease
the frequency.
MHz TUNING MODE
If the desired operating frequency is far away from the current frequency, it is
quicker to use the MHz Tuning Mode.
To adjust the MHz digit:
1 Press [F].
• The MHz digit blinks.
2 Rotate the ENC control to select the desired MHz value.
3 After selecting the desired MHz value, press [F] or [ENT] to exit the MHz
Tuning Mode and return to normal VFO Mode.
4 Continue adjusting the frequency as necessary, using the ENC control.
TRANSMITTING/ RECEIVING
1 To transmit, hold the transceiver approximately 5 cm (2 inches) from your
mouth, then press and hold [PTT] and speak into the microphone in your
normal tone of voice.
• The TX-RX LED lights red.
2 When you finish speaking, release [PTT].
• The TX-RX LED lights green while receiving a signal.
Note: If you continuously transmit for longer than the time specified in Menu No. 19 (default
is 10 minutes), the internal time-out timer generates a warning beep and the transceiver
stops transmitting. In this case, release [PTT] and let the transceiver cool down for a while,
then press [PTT] again to resume transmitting.
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DIRECT FREQUENCY ENTRY
In addition to rotating the ENC control, there is another way to select the
frequency. When the desired frequency is far away from the current frequency,
you can directly enter a frequency using the numeric keypad.
1 Press [VFO].
• You must be in the VFO Mode to make the direct frequency entry.
2 Press [ENT].
3 Press the numeric keys ([STEP] (0) to [PF] (9)) to enter your desired
frequency. [LAMP] ( ) allows you to complete the MHz digits entry.
• Pressing [ENT] fills all remaining digits (the digits you did not enter) with 0 and
completes the entry. For example, to select 145.000 MHz, press [MENU] (1),
[SQL] (4), and [T.SEL] (5), then press [ENT] to complete the entry.
• If you want to revise the MHz digits only, leaving the kHz digits as they are, press
[VFO] in place of [ENT].
Note:
◆ If the entered frequency does not match the current frequency step size, the frequency is
automatically rounded down to the next available frequency.
◆ When the desired frequency cannot be entered exactly, confirm the frequency step size.
◆ If you rotate the ENC control while entering the frequency, the transceiver clears the
entry.
SELECTING AN OUTPUT POWER
Selecting a lower transmit power is the best way to reduce battery consumption, if
communication is still reliable.
Press [LOW] to toggle between high, medium and low power.
• No icon appears when using high transmit power.
• The “ ” icon appears when using medium transmit power.
• The “
Note: When the transceiver overheats due to ambient high temperature or continuously
transmitting, the protective circuit may activate, lowering the transmit output power.
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” icon appears when using lower transmit power.
REMAINING BATTERY CAPACITY
You can confirm the remaining battery capacity when you transmit in low power.
To check the remaining capacity:
• The bar-graph shows the remaining battery capacity.
: High battery power
: ↑
: ↑
: Low battery power
or no display : Recharge or replace the batteries.
Note: You may not be able to transmit at high power if the battery remaining indicator shows
low battery power.
BACKLIGHT
Press [LAMP] to illuminate the display and keys.
• The light turns OFF approximately 5 seconds after releasing [LAMP].
• Press any key (including [PTT]) other than [LAMP] while the display and keys are lit to
restart the 5-second timer.
• Continuing to press [LAMP] after having pressed it will illuminate the display and keys
for as long as you hold the key.
Press [F] - [LAMP] to keep the light ON continuously.
• The light remains ON until you press [F] - [LAMP] again.
MONITOR
When you are receiving while the squelch function is ON, weak signals may
become intermittent.
If the CTCSS, DCS or Tone Alert function is ON, you may want to disable the
squelch function temporarily to monitor the current channel activities.
1 Press and hold [MONI].
• The speaker is unmuted and you can monitor the signals.
2 Release [MONI] to return to normal operation.
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