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TFM-500 Airborne VHF/UHF FM Transceiver
(DAI Part# TFM500G)
The Technisonic TFM-500 airborne VHF/UHF FM transceiver utilizes state of the art frequency synthesis techniques to provide FM communications on every currently available channel within the general radio service VHF/FM high band and UHF/FM band.

The VHF module covers from 138 to 174 MHz in 2.5 KHz increments while the UHF module covers from 403 to 512 MHz also in 2.5 KHz steps. Operating frequencies and other related data are presented on a 96-character, four line LED matrix display, which is available in either red or green.

The TFM-500 can be installed as a single transceiver operating in VHF or UHF mode through a single audio controller FM input, or can be installed as FM1 and FM2 enabling simultaneous operation on both bands. Additionally, this transceiver can operate as a cross band repeater. The cross band function is front panel controlled and requires only 2-key stokes to enable or disable. All data entry and control commands are entered via an enhanced 12-button keypad conveniently situated on the face panel.
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TFM500GU - TIL VHF/UHF/FM 138-174 MHZ & 403-512 MHZ TRANSCEIVER OHC

SPECIFICATIONS
VHF Module UHF Module
Frequency Range 138.000 MHz to 174.000 MHz 403.000 MHz to 512.000 MHz
Turning Increments 2.5 KHz 2.5 KHz
Operating Mode F3E simplex or semi-duplex F3E simplex or semi-duplex
Channel Spacing 12.5 KHz, 25 KHz or 30 KHz as per applicable FCC & DOC specifications 12.5 KHz, 25 KHz or 30 KHz as per applicable FCC & DOC specifications
Memory Positions 200 channels 200 channels
Dimensions (Overall TFM-500 dual banc transceiver) Approx. 8.0" x 3.75" x 5.75"
Weight 4.7 lbs. (2.2 Kg) total
Temperature Range -45°C to +70°C -45°C to +70°C
Altitude 50,000' 50,000'
Power Requirement 28 VDC
Receive–600 mA
1 watt transmit–1.3 AMPS
10 watts transmit–2.0 AMPS
28VDC
Receive–700mA
1 watt transmit–1.3 AMPS
10 watts transmit–2.0 AMPS
Certification FCC & DOC type approved FCC & DOC type approved
RTCA DO-160C Environmental Categories (B2,D1)XXX(B,M,N)XXXXXXABBXXXZXXX
Guard Receiver 2 channel, synthesized
CTCSS Squelch Capability Encodes/decodes all 63 available tones Encodes/decodes all 63 available tones
DPL/DCS Capability All available digital squelch codes Encodes/decodes all available digital squelch codes
DTMF Encoder All standard DTMF tones available All standard DTMF tones available
Audio Output 500 mW into 600 OHMS 500 mW into 600 OHMS
Speaker Output 2.5 watts into 4 OHMS 2.5 watts into 4 OHMS
Back Lighting 28V (standard) or 5V (specify) 28V (standard) or 5V (specify)
Display Color Green (standard) or red (optional) Green (standard) or red (optional)
Note: Specifications subject to change without notice–DPL is a trademark of Motorola Corporation
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