US4933986A
(en )
1990-06-12
Gain/phase compensation for linear amplifier feedback loop
US4520474A
(en )
1985-05-28
Duplex communication transceiver with modulation cancellation
US3100871A
(en )
1963-08-13
Single sideband receiver having squelch and phase-locked detection means
GB2124842A
(en )
1984-02-22
Radio receiver including a frequency-locked loop and a muting circuit
US3544899A
(en )
1970-12-01
Frequency-modulated receiver with decreased threshold level
US4994767A
(en )
1991-02-19
Oscillator phase-noise reduction
GB868952A
(en )
1961-05-25
Compatible single sideband radio transmission system
US4100376A
(en )
1978-07-11
Pilot tone demodulator
US3068416A
(en )
1962-12-11
Communication system
US2923887A
(en )
1960-02-02
Electronic circuit arrangement for the controlled amplification of a desired signal
KR900008789A
(ko )
1990-06-04
직접 혼합동기 am 수신기
US3480883A
(en )
1969-11-25
Frequency modulated phase-locked oscillator
US2793349A
(en )
1957-05-21
Sideband transmitter
GB1146865A
(en )
1969-03-26
Improvements in or relating to synchrodyne receivers
US2989622A
(en )
1961-06-20
Hybrid sideband frequency modulation system
GB1048328A
(en )
1966-11-16
Radio communication system
SE330915B
(it )
1970-12-07
US2959673A
(en )
1960-11-08
Radio receiver squelch control
US3345571A
(en )
1967-10-03
Receiver apparatus
US4520475A
(en )
1985-05-28
Duplex communication transceiver with modulation cancellation
GB1009646A
(en )
1965-11-10
Demodulators of frequency modulation receivers
US3015728A
(en )
1962-01-02
Noise suppressor system for a superregenerative receiver
US3147440A
(en )
1964-09-01
Cross-modulation detector means tuned to local oscillator frequency
US3262056A
(en )
1966-07-19
Variable power level frequency modulation transmitter
US2163747A
(en )
1939-06-27
Frequency modulation receiver