Military SEM-25 Desktop HF/VHF Transceiver

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The SEM-25 is a short-range VHF FM transceiver. It was introduced in the 1960's and used well into the 1980's. The SEM-25 uses all solid state technology except for the transmitter power amplifier. A receiver only configuration also exists under the name Military EM-25

Frequency range

RX-range
26.000-69.950 MHz
TX-range
26.000-69.950 MHz
HAM bands
11m (CB)  6m  10m 
Stability
±3.5 kHz from -40 to +60°C
Tuning steps
50 kHz
Filters
> 30 kHz (-6 dB)

Receiver

Modulations
FM  
Sensitivity
0.5 µV (20 dB S/N)
Selectivity
± 50 kHz @ 80 dB
Receiver system
-
IF-frequencies
-
Image rejection
-
Audio output
50 mW into 600 ohm

Transmitter

Modulations
FM  
RF-Output
1 / 15 W

Connections

Antenna
BNC + Proprietary (military)
Impedance
50Ω

Electrical

Power requirements
24V DC (21-29V DC, 32V max)
Current drain RX
60 mA (24V)
TX
240 mA (24V)

Physical

Dimensions (w×h×d)
222 × 268 × 330 mm (8.74 × 10.55 × 12.99 in) transceiver + control box
Weight
17.00 kg (37.5 lbs) transceiver + control box
Form factor
Base Station
Manufactured
Between 196x and 198x in Germany
MPN

Other features

Memories
880 channels in 1 bank(s)
Usage
Military communication
Features + options
-
Accessories
-

Manuals, diagrams and brochures

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Stories & reviews

My sweet SEM-25 tank-radiosets!

Military SEM-25, Desktop HF/VHF Transceiver

During the cold war I was a tank-commander on a norwegian Leopard-tank. The radio-systems were the rugged .SEM 25 type. Each of our tanks carried two sets, one for the platoon-use and one for the company-service. The german radios served well, had a wonderfull modulation and was easy to use.
Out in the shooting-range, when we had some time to wait, I used to listen to the ham-radio-guys, operating on the 26 - 30 Mhz.
Sometimes , when the conditions were good, I could listen to messages 1000 miles away, Portugal, Italy and so on.
Once a Leopard tank got submerged in a bog. It was dragged up again and cleaned , and got a total overhaul. Many systems had to be shifted or repaired - BUT the rugged and waterproof SEM-25 radios functioned flawlessly! We only had to clean the sets and turn them on - everything was ok!.

Overall
 
Performance
Build quality
Features
User friendlyness
Value for money
Aquired
Good condition in 2010
EUR 200.00

What is it worth?

Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the current value of the Military SEM-25. Just bought or sold this model? Let us know what you traded it for and help other ham operators!

Based on historic data, today's value of the Military SEM-25 might be around:

  • EUR 99.00
Price Condition Year User
EUR 25.00 New / Mint 2009 elmer
EUR 200.00 Used / Good 2010 eigustav

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