Existing comment:
Transceiver (CODENAME: LOSS)
Replica, originally issued by NKVD, 1946
This device, a radio transmitter and receiver housed in a single unit, was for portable use. From a van parked nearby, it aimed a radio signal at the antenna hidden in the seal. This caused vibrations within the empty cavity. Any conversation in the room further changed the modulation of the beam, which was then picked up and interpreted by the receiver. |