How Can Signal Dropouts And Noises In A Wireless System Be Prevented?
1. What Causes Signal Dropout and “Noise?” When antennas receive signals, they receive not only direct signals from a transmitter, but also other indirect signals reflected from the surrounding environment. Unfortunately, as a transmitter is moved around, these signals may go out of phase which can adversely affect the signal strength. When the signal strength on the antenna falls below the squelch level threshold of the receiver, then the phenomena of “Receiving Dead Point” occurs. When the signal strength is closer to the squelch level threshold, the S/N ratio is seriously affected and the receiver may put out noise instead of a clear audio signal.
