Listen LT-800 Design Manual & Manual page 62

LR-400/500 Operating Instructions
Squelch Programming
Entering Squelch Program Mode
1
Turn unit off
2
the unit on.
3
display is seen.
Adjusting the Squelch level
1
page 49 for settings.
2
Lower numbers mean that a less powerful and possibly noisy signal will be heard, but you can have a
longer range before the unit will squelch.
3
NOTE: Keep in mind, low squelch may allow multipath and squelch chattering at long distances.
Squelch setting 00 is no squelch; this setting disables the squelching capabilities of the receiver. Squelch
setting 20 is maximum squelch sensitivity; when on this setting, there must be a very strong and stable
RF signal for the unit to not engage the squelch feature.
NOTE: For squelch settings 1-3, the squelch function is slow which allows for maximum
56
transmission range. For squelch settings 4-20 the squelch function is fast to ensure little
radio noise is heard during the squelch function.