Most wireless mic receivers have a squelch threshold that determines the RF sensitivity of the receiver. If the threshold is too low, RF reception will be spotty and audio will occassionally drop out. If the threshold is too low, you will experience white noise from the receiver output. Here is how to adjust the Squelch:1. With the transmitter and receiver powered off, lower the output of the mic channel in the sound system to about 10dB less than the normal position.
2. Locate the Squelch potentiometer screw driver adjustment or menu selection and power on the receiver.
3. Adjust the Squelch sensitivity up or down until the noise stops (different manufacturers, different directions), and then a little more for good measure. Raise the gain on the system mic channel to the normal operating level.
4. Power on the transmitter and check for normal operation (talk into the mic).
5. Power off the transmitter. If the noise occurs again (this time probably only momentarily), adjust the sensitivity further in the direction that you previously adjusted.
6. Repeat steps 3-5 until you are content.
Sometimes other mic systems or local RF sources can falsely trigger other mic systems that operate on adjacent RF frequencies. To combat this problem, more expensive wireless mic systems have digital-coded squelch (or "tone-keyed squelch") instead of a manual Squelch adjustment. The transmitter in a digital-coded squelch system sends out a unique digital code programmed at the factory that only the receiver will recognize. Sweet. Here is a link that describes this system in better detail: http://www.lectrosonics.com/wireless/dcs/dcs.htm
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This is the debut album by EXW friend Paul Langford. Paul is a Chicago based singer, arranger, keyboardist, producer and conductor. Paul has a career that spans 14 years. Paul's work includes arranging for groups like GLAD, Voices of Liberty, VoiceTrek, The Chicago based "Caroling Party" and Day of Discovery Singers. His arranging has appeared on recordings side by side with greats like Gene Puerling and David Maddux, and he has sung with Don Shelton, Bonnie Herman and Bob Bowker, among others.