Maxon TM-4800 User manual
Operating Instructions
TM-4800 Mobile
800 MHz Transceiver
About Your TM-4800 Radio
Maxon's TM-4800 is a sophisticated microprocessor-
controlled transceiver which operates in the 800 MHz range.
Operation and functions for Maxon's TM-4800 radio are
described in this manual.
We urge you to thoroughly read this manual before
operating the radio.
The TM-4800 has been designed for ease of operation.
Many of the functions described in this manual are
dependent on the system in use. Your Maxon Dealer has
programmed the TM-4800 radio to optimize your
requirements.
Should you have any questions regarding the operation of
the radio, please consult your Maxon Dealer.
About Maxon America, Inc.
Maxon America, Inc. designs and manufactures professional
FM two-way radio equipment to serve a wide variety of
communication needs. Maxon produces equipment for the
Land Mobile Radio and Specialized Mobile Radio markets
(business, industrial, government and public safety).
Table of Contents
SECTION I - Model TM-4800 Radio
Safety Information 1
UnpackingInformation 2
InstallationSafeguards 3
TM-4800 Features 4
Quick Reference Guide 5
Description of Radio Components 6
Controls and Connectors 6
Function Keys 8
DisplayInformation 9
TM-4800 Operation 10
TrunkingandConventional Mode 10
ChannelMonitoring 10
System"Handshaking" 10
Transmitting 11
Receiving 12
T/A - Talk-Around 12
Transpond Mode 13
Scan Modes 14
General 14
System Scan 14
System Lockout 14
Group Scan 15
Auto Group Scan 15
Manual Group Scan 16
TransmittingWhileScanning 16
Last Active (Floating) System and Group 16
"Home" System and Group 17
Scan Resume Delay 17
RXPriority 18
First Available System Scan 18
TrunkingSupervisoryTones 19
Busy Tone 19
Intercept Tone 19
Clear-To-Talk 20
Key Press Tone 20
Display Messages 20
Transceiver Service 21
Extended Operations 22
FCC Licensing 23
TM-4800 Product Warranty 24
SECTION II - Model TMA-4474
About Your TMA-4474 Optional Microphone 27
Quick Reference Guide 28
Function Keys 30
Scan Modes 33
Manual System Scan 33
Manual Group Scan 33
TransmittingWhileScanning 34
First Available System Scan 34
TelephoneCalls 35
Placing a Telephone Call 35
Receiving a Telephone Call 37
Additional Telephone Calling Information 38
Entering Telephone Numbers 38
Clearing Telephone Numbers 39
To Store a Number in Memory 39
To Recall a Number Stored in Memory 39
TrunkingSupervisoryTones 40
Busy Tone 40
Intercept Tone 40
Clear-To-Talk 41
Key Press Tone 41
Reorder Tone 41
Return Time Warning Tone 41
Conversation Time-Out Tone 42
Turn-Around Tone 42
System Ringback Tone 42
TMA-4474 Product Warranty 43
1
Safety Information
The Federal Communications Commission (FCC), with
its action in General Docket 79-144, March 13, 1985, has
adopted a safety standard for the human exposure to Radio
Frequency (RF) electromagnetic energy emitted by FCC
regulated equipment. Proper operation of this radio will
result in user exposure far below the Occupational Safety
and Health Act and Federal Communication Commission
limits.
DO NOT operate a mobile radio when someone outside the
vehicle is within two feet (0.6 meter) of the antenna.
DO NOT operate the radio near unshielded electrical
blasting caps or in an explosive atmosphere, unless it
is a type specifically designed and qualified for such use.
DO NOT operate the transmitter of any radio unless all RF
connectors are secure and any open connectors are properly
terminated.
DO NOT allow children to operate transmitter-equipped
radioequipment.
• For safe operation, all equipment must be properly
grounded.
• All equipment should be serviced only by a qualified
technician.
This device complies with Part 15 of the FCC rules.
Operation is subject to the condition that this device
does not cause harmful interference.
Unpacking Information
Remove and carefully inspect the contents of your package
for the following items:
• Radio
• Microphone
• DC power supply cord
• Mounting bracket, hardware
• Microphone hanger and hardware
• Operating instructions
If any items are missing, please contact your Maxon
Dealer.
2
Installation Safeguards
Some electronic fuel injection, anti-skid breaking systems,
cruise controls, and vehicle alarms may be prone to interfer-
ence from radio frequency energy or may malfunction due to
a lack of protection from RF energy. If the vehicle contains
such equipment, consult the dealer or factory and enlist their
help in determining whether the electronics equipment in the
vehicle will operate properly when the radio is transmitting.
• Select a location for the radio which allows the user to see
and easily reach the microphone and radio controls.
DO NOT install the unit where it would interfere with the
proper operation of automatic collision protection
devices (air bags).
DO NOT install the unit where it would likely cause injury
in case of accident.
• After selecting a location for the radio, hold the mounting
bracket in place. Using the bracket as a template, mark
with a pencil the spots where the bracket securing
screws will be located.
• Before drilling holes in the vehicle, verify that there is
nothing that could be damaged or get in the way by
drilling and putting screws in this location.
NOTE: It is better to use existing passages in the dash-
board, trunk, and floor for the routing cable, thus avoiding
excessivedrilling.
NOTE: This radio is not intended for operation in a positive
groundvehicle.
A suitable antenna must be purchased for use with the radio.
Consult your Maxon Dealer for recommended Maxon
antennas. 3
4
TM-4800 Features
• Up to 10 systems selectable
• Up to 10 groups selectable per system
• System scan
• System lockout when scanning
• Group scan automatically or manually
• Programmable CTCSS and DCS squelch capability
• 7-character alpha-numeric LCD display with backlight
• Operation in both trunking and conventional modes
• Repeater talk-around (conventional and trunking modes)
• Automatic system ringback if system is busy
• Transmit inhibit with busy tone
• Clear-to-talk tone
• First available system scan (FASS)
• Optional microphone for telephone interconnect*
• Storage of up to 8 telephone numbers (of up to 14 digits in
length) *
*Functions only when using Maxon Model TMA-4474
(optional microphone with DTMF keypad).
NOTE: System setup determines the specific operation
of some of the above features. Refer to the descriptions
in this manual for more information.
V
5
• OFF
VOL
• MAX
V
GRP
LCK
T/A
SCN
V
SYS
V
Quick Reference Guide
Controls
Push-To-Talk bar (on microphone) places
transceiver in transmit mode
Turns transceiver On/Off and
adjusts VOLume
Changes SYStem number
LoCKs displayed System out of
scan sequence
Talk-Around bypasses system when out
of range of system
Initiates SCaNning mode
Changes GRouPnumber
Description of Radio Components
ControlsandConnectors
TX/RX Indicator - Two color LED glows red when radio
is transmitting (TX) and green when radio is receiving (RX).
On/Off-Volume Control - Turning this knob clockwise
supplies power to the radio and increases volume level. A
counter-clockwise rotation decreases volume level. To turn
transceiver power off, rotate knob counter-clockwise
to detent.
Microphone Connector - Eight pin modular connector for
Maxon heavy duty microphone and optional DTMF micro-
phone (model TMA-4474).
Function Keys - Used to select system and group; to
initiate system lockout, talk-around and scan modes.
6
Table of contents
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