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Last modified 2025-09-12

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Motorola GM-340

A picture of Motorola GM-340

SPECIFICATIONS

GENERAL
Type:Professional land mobile VHF or UHF transceiver
Frequency range: 136-174 MHz
403-470 MHz
Tuning steps:Channelized (Programmable in 12.5 / 20 / 25 KHz increments)
Frequency stability:? ppm
Mode:FM
Channels / memory management: 6 regular
Duplex shift / offset:Programmable
Power supply:13.8 VDC
Current drain / power consumption:RX: ? mA
TX: ? A
Antenna impedance / connector:50 ohm / BNC
Dimensions (W*H*D):176*56*177 mm (6.93*2.2*6.97")
Weight:1.4 Kg (3.09 lb)
Other features: CTCSS/PL and 5-tone selcall. VOX. PA.
Voice encryption and trunking options.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: ? MHz
2nd IF: ? KHz
Sensitivity:0.3 uV (12 dB SINAD)
Squelch sensitivity:
Selectivity:
Image rejection:
AF output power / speaker:3 W at 3% distortion / ? ohm
External speaker connector:Max 13 W




TRANSMITTER SECTION
RF output power: 1-25 W
Modulation system:
Max FM deviation (Factory set): ±2.5 KHz @ 12.5 KHz channel spacing
±4 KHz @ 20 KHz channel spacing
±5 KHz @ 25 KHz channel spacing
Spurious emissions:-36 dBm <1 GHz
-30 dBm >1 GHz
Microphone impedance / connector:? ohm / 8-pin (Modular)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Malaysia, 199x-200x (Discontinued)
Additional info:
Related documents: User manual (218 KB)
GM-series basic service manual (1.4 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
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