User's Manual

1-1
SECTION 1
GENERAL DESCRIPTION
1.1 INTRODUCTION
This publication provides operating and installation information on the TDFM-600/6000 airborne
transceiver. (The exact model number depends on which and how many RF modules are installed.)
1.2 DESCRIPTION
The TDFM-600/6000 series of transceivers are airborne multiband radios capable of conventional FM,
P25, Smartnet and Smartzone trunking systems and any other feature supported by the Motorola XTS-
3000 portable radio. The modules are available in VHF, UHFLO, UHFHI and 800 MHz bands. The bands
are numbered 1,4,5 and 8 respectively.
TDFM-655 - Two UHF high band modules
TDFM-688 - Two 800 MHz modules
TDFM-6148 - One VHF, UHF low and 800 MHz module
TDFM-6158 - One VHF, UHF high and 800 MHz module
1.3 TECHNICAL CHARACTERISTICS
Specification Characteristic
Model Designation: TDFM-600/6000
Physical Dimensions: Approx. 8" X 3" X 5.75"
Weight: 3 Lbs (1.2 kg)
Operating Temperature Range: -45ΕC to +60ΕC
Power Requirement:
Voltage: 28.0 Vdc, ∀ 15%
Current: 165mA minimum
5A maximum
RF Output Power: 1 or 5 Watts
Frequency Range - VHF Module: 136 to 178 MHz
UHF LO Module: 403 to 470 MHz
UHF HI Module: 450 to 512 MHz
800 Module: 806 to 870 MHz
Audio Output Power (including sidetone): 500 mW into 600 ohms
Microphone Inputs: Carbon or Equivalent
Panel Back Lighting: 28 VDC or 5VAC
(specified when ordered)
SECTION 2