Why Wireless Mics Drop Out and How to Prevent It
Be sure to join next week – June 24th at 2PM EST – for our next live session, Why Wireless Mics Drop Out and How to Prevent It.
After this practical 30 minute session presented by RF Venue Senior Applications Engineer Don Boomer, you will be well-versed in the leading causes of signal dropouts:
- Local RF Interference
- Multi-Path Interference
- Cross-Polarization Fades
Spots are limited so be sure to sign up today!
After 10,000 wireless projects we’ve seen and heard it all.
During this Webinar, we will discuss the key concepts and techniques to make your wireless microphone system dropout and interference free.
Understanding Local Interference and Range
Loss of range is typically caused by competition from localized interference, such as that caused by TV stations, motors, LED lighting, anything with a computer chip, and now cell phone service in the 600 MHz band. These sources, added together, form your noise floor. Directional antennas and bandpass filters can work together with high-quality coax cables to help mitigate this problem.
Understanding Multi-Path Interference:
Multi-path interference is caused by reflections of your transmitter’s signal, primarily by metal objects in your venue and other boundaries. These reflections flip the polarity of the signal and arrive out of phase which causes cancellations in your receiver’s antennas.
Understanding Cross-polarization Fades:
Cross-polarization fades (aka antenna dropouts) happen when your antennas are not oriented correctly to match your transmitters. This can be somewhat mitigated by proper antenna positioning. However, since multiple antennas must be separated by distance to avoid interfering with each other, the signal in each antenna will not be in the same wave period (phase). For maximum efficiency the receiving antennas for your wireless microphone systems needs to match the polarization of the microphone transmitters.
