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Last modified 2023-07-02

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Minix MTR-25S (By Richter & Co.)

A picture of Minix MTR-25S (By Richter & Co.)


Type:Amateur VHF transceiver
Frequency range: TX: 144-146 MHz
RX: 144-146 MHz
Tuning steps:Analog / continunous
Frequency stability:? ppm
Mode:AM / FM / CW
Channels / memory management: None
Repeater shift / offset:No dedicated. Use the separate RX and TX VFO's
Power supply:Mains: 110 / 220 VAC
or 12 VDC
Current drain / power consumption:RX: 3.5 A @ 12 VDC
TX: Max 6 A @ 12 VDC
Antenna impedance / connector:50-75 ohm / SO-239
Dimensions (W*H*D):300*155*260 mm (11.81*6.1*10.24")
Weight:9.5 Kg (20.84 lb)
Other features:IF-mechanical filter. Squelch. Noise limiter.

Receiver system: Double conversion superheterodyne
1st IF: 5.15 MHz
2nd IF: 455 KHz
Sensitivity:0.1 uV (No reference)
Selectivity:8 KHz (-6 dB)
Image rejection:
AF output power / speaker:4 W at ?% distortion / No internal speaker
External speaker connector:

RF output power: Max 8 W
Modulation system:
Max FM deviation (Factory set):? KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:Hi-Z / 3-pin
Microphone input level:? mV

Manufactured:West Germany, 1970-197x (Discontinued)
Additional info:New price 1970 in West Germany: DM 1148.-
Related documents: RF final: QQE03/12
Modifications and fixes:
Options / Accessories:
Hand microphone
Desk microphone
An inside picture of Minix MTR-25S
A rear picture of Minix MTR-25S