1-2
1.5
TECHNICAL CHARACTERISTICS
Specification
Characteristic
GENERAL
Model Designation:
TFM-138, s/n 1540 and up
Frequency Range:
138.000 to 174.000 MHz
Tuning Increments:
2.5 kHz
Operating Mode:
F3E simplex or semi-duplex
Channel Spacing:
25 or 12.5 kHz
Physical Dimensions (including heatsink):
Approx. 8.0" X 3.0" X 5.75"
Weight:
Approx. 3.1 Lbs (1.4 Kg)
Mounting:
Panel Mount via Dzus fastners
Operating Temperature Range:
-45
E
C to +70
E
C
Power Requirement:
Voltage:
28.0 Vdc, ± 15%
Current:
Receive - 0.7 A Max.
1 Watt Transmit - 1.3 A Max.
8-10 Watt Transmit - 2.0 A Max.
Frequency Selection:
100 memories programmed with:
a) Tx Frequency/Rx Frequency
b) Tx/Rx CTCSS tone
c) 9 character alpha numeric title
Guard Receiver:
2 channels programmed with:
a) Tx Frequency/Rx Frequency
b) Tx CTCSS tone
c) 9 character alpha numeric title
CTCSS squelch/encoder:
All CTCSS tones available
DPL digital squelch/encoder:
(Not available in TFM-138)
DTMF encoder:
All standard DTMF tones
Audio Output:
0.5 Watts into 600 ohms
Speaker Output:
2.5 Watts min. into 4 ohms
Back Lighting:
28 Volts (standard) or
5 Volts (specify)
Display Colour:
Green (standard) or
Red (specify)
DPL is a trademark of Motorola Corporation
Summary of Contents for TFM-138
Page 13: ...2 2 FIGURE 2 1 Operator s Switches and Controls TFM 138 F10 B software...
Page 24: ...3 2 FIGURE 3 1 Outline Drawing for Model TFM 138 Transceiver...
Page 26: ...3 4 Figure 3 2 Wiring Connections for TFM 138 Transceiver...
Page 30: ...3 8 FIGURE 3 4 Microphone and Sidetone Level Main and Guard Squelch Adjustment Access Holes...
Page 42: ...STEP SYSTEM PASS FAIL NOTES A 11...