KENWOOD TM-481A Owner's Manual

Cover page of KENWOOD TM-481A Owner's Manual

Owner's Manual for KENWOOD TM-481A, downloadable as a PDF file.

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© B62-2348-20 (M,M3)
09 08 07 06 05 04 03 02
144 MHz FM TRANSCEIVER
430 MHz FM TRANSCEIVER
INSTRUCTION MANUAL
144 MHz FM
430 MHz FM
TM-281A/ TM-481A
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© B62-2348-20 (M,M3)
09 08 07 06 05 04 03 02
144 MHz FM TRANSCEIVER
430 MHz FM TRANSCEIVER
INSTRUCTION MANUAL
144 MHz FM
430 MHz FM
TM-281A/ TM-481A
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INSTRUCTION MANUAL
144 MHz FM TRANSCEIVER
TM-281A
430 MHz FM TRANSCEIVER
TM-481A
ENGLISH
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THANK YOU!
Thank you for choosing this Kenwood transceiver.
Kenwood always provides Amateur Radio products
which surprise and excite serious hobbyists. This
transceiver is no exception. As you learn how to use this
transceiver, you will find that Kenwood is pursuing "user
friendliness". For example, each time you change the
Menu No. in Menu mode, you will see a text message on
the display that lets you know what you are configuring.
Though user friendly, this transceiver is technically
sophisticated and some features may be new to you.
Consider this manual to be a personal tutorial from the
designers. Allow the manual to guide you through the
learning process now, then act as a reference in the
coming years.
MODELS COVERED BY THIS MANUAL
The models listed below are covered by this manual.
TM-281A:
144 MHz FM Transceiver
TM-481A:
430 MHz FM Transceiver
The frequency indication examples in this instruction
manual are provided for the TM-281A (VHF model).
Therefore, the actual operation frequencies will not match
when operating the TM-481A (UHF model).
MARKET CODES
Mn:
General
(Where "n" represents a variation number.)
The market code is printed on the barcode label of the
carton box.
Refer to the product specifications {pages 69, 70} for
information on the available operating frequencies within
each model. For accessories supplied with the model,
refer to page 1.
FEATURES
· Menu allows for easy control and selecting of various
functions.
· Up to 200 memory channels to program frequencies and
other various data. (Up to 100 memory channels if Memory
Channel Names are assigned to the channels.)
· Continuous Tone Coded Squelch System (CTCSS) or Digital
Code Squelch (DCS) rejects unwanted calls from other
stations.
· Equipped with an easy-to-read large LCD with alphanumeric
display capability.
· Free PC software (Memory Control Program) is available to
program the frequency, signalling, and other settings of your
transceiver. The MCP can be downloaded at:
http://www.kenwood.com/i/products/info/amateur/software_download.html
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i
PRECAUTIONS
Please observe the following precautions to prevent
fire, personal injury, and/or transceiver damage:
· Do not attempt to configure your transceiver while
driving; it is simply too dangerous.
· Be aware of local laws pertaining to the use of
headphones/headsets while driving on public roads.
If in doubt, do not wear headphones while mobiling.
· Do not transmit with high output power for extended
periods; the transceiver may overheat.
· Do not modify the transceiver unless instructed by
this manual or other Kenwood documentation.
· Do not expose the transceiver to long periods
of direct sunlight nor place it close to heating
appliances.
· Do not place the transceiver in excessively dusty,
humid or wet areas, nor on unstable surfaces.
· If an abnormal odor or smoke is detected
coming from the transceiver, turn OFF the power
immediately. Contact a Kenwood service station or
your dealer.
· This transceiver is designed for a 13.8 V power
source. Never use a 24 V battery to power the
transceiver.
NOTICES TO THE USER
When condensation occurs inside the transceiver:
Condensation may occur inside the transceiver when the room is warmed
using a heater on a cold day or when the transceiver is quickly moved
from a cold location to a warm location. 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 wait for a while. When the condensed droplets disappear, the transceiver
will function normally.
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ii
CONTENTS
VFO MODE .......................................................... 15
MHz MODE .......................................................... 16
DIRECT FREQUENCY ENTRY ..................................... 16
CHAPTER
5
MENU SETUP
WHAT IS A MENU? ................................................ 18
MENU ACCESS ...................................................... 18
MENU FUNCTION LIST.......................................... 19
CHAPTER
6
OPERATING THROUGH REPEATERS
OFFSET PROGRAMMING FLOW.......................... 22
PROGRAMMING AN OFFSET ............................... 23
SELECTING AN OFFSET DIRECTION ............................ 23
SELECTING AN OFFSET FREQUENCY........................... 23
ACTIVATING THE TONE FUNCTION .............................. 24
SELECTING A TONE FREQUENCY................................ 24
AUTOMATIC REPEATER OFFSET........................ 25
TRANSMITTING A 1750 Hz TONE......................... 25
REVERSE FUNCTION............................................ 26
AUTOMATIC SIMPLEX CHECK (ASC) .................. 26
TONE FREQUENCY ID SCAN ............................... 27
CHAPTER
7
MEMORY CHANNELS
NUMBER OF MEMORY CHANNELS ..................... 28
SIMPLEX & REPEATER OR ODD-SPLIT
MEMORY CHANNEL? ............................................ 28
STORING SIMPLEX FREQUENCIES OR
STANDARD REPEATER FREQUENCIES ............. 29
STORING ODD-SPLIT REPEATER
FREQUENCIES ...................................................... 30
RECALLING A MEMORY CHANNEL ..................... 30
SUPPLIED ACCESSORIES...................................... 1
WRITING CONVENTIONS FOLLOWED
IN THIS MANUAL...................................................... 1
CHAPTER
1
PREPARATION
MOBILE INSTALLATION .......................................... 2
DC POWER CABLE CONNECTION......................... 3
Mobile Operation .................................................. 3
Fixed Station Operation........................................ 4
Replacing Fuses................................................... 5
ANTENNA CONNECTION ........................................ 5
ACCESSORY CONNECTIONS ................................ 6
External Speaker.................................................. 6
Microphone........................................................... 6
PC Connection ..................................................... 7
CHAPTER
2
YOUR FIRST QSO
CHAPTER
3
GETTING ACQUAINTED
FRONT PANEL ......................................................... 9
DISPLAY ................................................................. 10
REAR PANEL.......................................................... 12
MICROPHONE........................................................ 12
MIC KEYPAD DIRECT ENTRY .................................... 13
CHAPTER
4
OPERATING BASICS
SWITCHING THE POWER ON/OFF ...................... 14
ADJUSTING THE VOLUME.................................... 14
ADJUSTING THE SQUELCH ................................. 14
TRANSMITTING ..................................................... 15
SELECTING AN OUTPUT POWER ................................ 15
SELECTING A FREQUENCY ................................. 15

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