Squelch Information - Listen Technologies LR-300 User Manual

LR-500
Squelch
Squelch
The purpose of squelch is to mute the audio output of your receiver when the signal from the trans-
mitter is turned off or is too weak to be received. Without squelch you would hear radio noise in
your earphone. The squelch on your receiver can be adjusted so that it will mute the audio on dif-
ferent RF signal strengths. This is useful as follows:
· To ensure that users don't hear transmissions from other transmitters, set the squelch setting to
the highest level that doesn't squelch the receiver.
· If the receiver is going to be close to the transmitter (i.e. in a classroom), setting the squelch
setting high so that when the transmitter is turned off it immediately squelches and ignores
transmitters in other rooms.
· If you are in an area that has a lot of inference, you may want to set the squelch setting to a
high setting to ensure the interference is not picked by the receiver.
· If you need the maximum amount of range, you may want to consider setting the squelch set-
ting to a low level (0, 1 or 2). CAUTION: when setting the squelch level low the reliability
of squelch function is comprised. This will cause radio noise to be heard in the earphone and
there is a possibility of hearing damage.
17