SEM-52S
This is a West Germany military radio from the 80s. It works in the 50 MHz (6 meter) band. The frequency range is from 46 to 58 MHz in 25 kHz steps. The radio is synthesized and 6 channels can be programmed using rotary switches.
The operating mode is FM and the power output is 1 W. It can be used with a steel band antenna or with an external antenna connection (BNC connector). When used with the steel band antenna, a counterpoise built in the carrying pouch is necessary to increase the antenna efficiency.
The museum holds a complete unit including the radio itself, carrying pouch and steel band antenna. The set is fully functional but has some minor cosmetic wear.
You can see more pictures of this radio on my friend's DH4PY military radio museum.
PRC-6/6
This is a West Germany military radio from the 50s. It works in the 50 MHz (6 meter) band. The frequency range is from 47 to 54.4 MHz in 100 kHz steps. The radio is crystal controlled. This model is based in the original american AN/PRC-6, but it has been improved with a complicated clockwork in order to have room for 6 different channels and be able to switch them quickly without powering down and re-aligning the radio on the field.
The operating mode is FM and the power output is 250 mW. It can be used with a steel band antenna only, because the rotary channel selector occupies the place for the BNC socket found in the original AN/PRC-6.
The museum holds a complete unit including the radio itself, steel band antenna, spare tubes set and a 80s french solid state power supply. The set is fully functional but has some frequency drift between RX and TX because of its age.
You can see more pictures of this radio on my friend's DH4PY military radio museum.
PRC-90 SAR transceiver
This is a Search and Rescue (SAR) american radio from the 60s. It was used by downed pilots in order to contact the rescue aircraft. See the Bat 21 film if you want to see it in action with an infinite battery life.
The operating mode is AM and the power output is 500 mW. It uses two crystal controlled channels and the operating modes are Voice, Beacon and CW. It has no squelch control.
The museum holds a fully functional and complete unit, including an adapter for use with modern lithium batteries and headphones. It was donated by my friend Armando.
You can see more pictures of this radio on my friend's DH4PY military radio museum.
