How many multiple systems can be operated simultaneously without interference?
The most difficult challenge facing wireless microphone systems is to use multiple systems simultaneously without interference. The more frequencies used, the worse the interfering problems. In order to avoid interference one must first choose non-interference frequencies, reject the surrounding external interference, have an excellent selectivity feature and filter out cleanly at the radiating spurious emissions. The average VHF range receivers can be operated with 12 non-interference systems. That is considered a good result. However, every MIPRO series can be installed up to 24 non-interference systems. In testing, MIPRO has achieved over 50 VHF and 64 UHF non-interference frequencies.
