Radio receiver having co-channel interference operated squelch

作者： Johannes Noordanus , Johannes van der Poel

DOI:

关键词: Computer science 、 Demodulation 、 Squelch 、 Electronic circuit 、 Signal 、 Electronic engineering 、 Interference (communication) 、 Audio power amplifier 、 Co-channel interference 、 Noise (electronics)

摘要: FM-radio receiver having an audio amplifier stage, provided with switching means, and a squelch circuit which is coupled to the output of demodulator, this comprising two circuits are constructed in such manner that one produces at early stage signal when co-channel interference occurs whereas other controls said means only impermissible signal/noise ratio and/or degree interference.