The following feature is for the 411DRH only.
(12) Squelch adjust
This adjusts the point at which the receiver will shut off or squelch the incoming radio signal when it
becomes too weak. Turning the control clockwise raises the threshold, allowing more signal to enter, and
turning the control counter-clockwise lowers the threshold, letting in less signal.
When operating multiple systems all receivers and transmitters must be on the same group
Example: 4 systems operating simultaneously.
To change the frequency that a transmitter, receiver pair is already on
YOU MUST TURN OFF BOTH TRANSMITTER AND RECEIVER OFF FIRST!
System #1
Group Channel
System #2
Group Channel
System #3
Group Channel
System #4
Group Channel
Receivers
2 4 25 26 27
Transmitters
2 4 25 26 27
(3)
HR-2