Radio station system

Details Radio station system Radio station system

H - Electricity

04

B

325/19

H04B 1/50 (2006.01)

Patent

CA 1102413

Specification Title of the Invention Radio Station System Abstract of the Disclosure In a radio station system utilizing multi- channel transmission and reception frequencies of the type comprising a transmitter and a receiver wherein the frequency difference between the transmission and recep- tion frequencies is made to be equal to an intermediate frequency, there is provided a source of multi-frequency signal which determines the multi-channel transmission and reception frequencies. The output of the multi- frequency signal source is utilized directly as a local oscillation signal of the receiver and the frequency of the output of the multi-frequency signal source is shifted by a modulated wave having a frequency twice the inter- mediate frequency and the frequency shifted output is utilized as the transmission frequency.

316654

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