User Manual
Advanced Functions
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Advanced Functions
Receiver
Squelch
The squelch circuit prevents unwanted interference from 
compromising your audio. If the signal falls below a certain 
level, the output of the receiver is muted.
Squelch should be set at a level that is slightly above the 
level of audible interference.
Note: A high squelch setting requires a strong signal 
from the transmitter. Since the transmitter signal strength 
decreases with distance, a high squelch setting will decrease 
the range of your wireless system.
To activate squelch and set the level, follow these steps:
1. Press and hold the Set button to enter menu mode.
2. Scroll to [
 ADVANCED MENU ], and press the Set button.
3. In the advanced menu, scroll to [
 SQUELCH ], and press the 
Set button. The menu selection will blink.
4. Use the Up/Down buttons to select [
 HIGH ], [ MEDIUM ], 
[ LOW ], or [ OFF ]. Press the Set button to save the setting.
Important! If you are experiencing a great deal of 
interference even when squelch is activated, scan for a clear 
frequency or channel (see Auto Frequency Scanning on 
page 14).
Pilot Tone
Pilot tone is an additional dimension of protection against 
unwanted interference. A 32.768 kHz tone is added to the 
signal from the transmitter. If the receiver doesn’t detect this 
tone, it mutes the output. Without pilot tone, the receiver 
might not mute a strong interfering signal. Unless you’re 
confident that there’s no RF interference in your area, it’s 
recommended to use the pilot tone at all times.
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