Superhigh-frequency duplex mode telecommunications device

In a superhigh frequency duplex mode telecommunications device for communication between a first station and others in a network of stations, each of said stations in said network having a superhigh frequency oscillator providing a carrier frequency to an antenna, and a quench oscillator providing a quench signal, said quench oscillator at each of said stations providing a specific frequency signal acting as a subcarrier signal, said carrier signal being frequency modulated by the information it is desired to transmit, and in which each of said stations further includes a selective filter tuned to the frequency of said quench signal utilized in the station from which it is desired to receive a signal and a frequency modulation detector for detecting said signal, said stations operating in superregeneration, using the same antenna for transmission and reception, said device comprises:

• preselector means coupled to said oscillator for tuning said quench oscillator to the frequency assigned to a specific station in said network with which said first station desires to communicate;
• means coupled to said preselector means for mixing;
• adjustable frequency heterodyne oscillator coupled to said mixer, said heterodyne oscillator being adjusted to provide a constant heat frequency resulting from the mixing of said heterodyne oscillator's output frequency and said quench frequency of said other station in said network whose signal it is desired to receive;
• wherein said first station quench oscillator is tunable to frequencies corresponding to said other stations in said network;
• and
• mechanical switch means coupled to said quench oscillator, said preselector and said heterodyne oscillator, for the simultaneous frequency adjustment thereof.