| 摘要 |
FIELD: radio engineering and data transmission in asynchronous address systems. SUBSTANCE: during operation, clock generator 1 synchronizes main modulator 2 whose variable-frequency output pulses arrive at input of pulse distributor 3. At the same time, high-frequency signals specified by code pulse generator 5 are shaped across outputs of programmable reference-frequency generator 4. Output signals of generator 4 and pulse distributor 3 are passed in pairs to inputs of coincidence circuits 6, 7, 8, 9 and upon logic multiplication they arrive at group amplifier 10 whose complementary input receives code signal directly from output of programmable reference-frequency generator 4. It is just this signal in response to which fast adjustment (fast pulling in synchronism) of receiving device takes place. Signal in the form of frequency-time matrix is shaped across output of group amplifier 10 which goes to output transmission unit 11 for power amplification and transmission to distant station. EFFECT: reduced time for pulling transmitter and receiver in synchronism and identifying operating radio station during frequency signal transmission. 3 dwg øøø1
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