Intercom Function
Stuck Mic
Basic Operation
When two headphone and microphone jacks are connected to the SL40, these headsets can be used as a
When you select the Intercom function with the installed selector switch, the intercom function is enabled. The Volume control will control the headphone listening level. The receive function will automatically become active when a signal is detected, but the volume will be reduced during intercom activity. A small “I” is displayed above and to the left of the “s” or “m” of the standby frequency to indicate the Intercom function is selected.
The Microphone Squelch Sensitivity can be set in the System Functions.
The SL40 helps protect you from a situation where the microphone may get stuck in the ON or Transmit position. If the microphone is keyed for longer than 35 seconds, the SL40 will return to the receive mode on the selected frequency.
A flashing “Stuck Mic” message will display until the transmit key is released.
121.50 Stuck Mic
Note
In an emergency situation, if the “Stuck Mic” message remains after you have stopped keying the mic, turn the power off and then back on. You will then get another 35 second
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