Montor button
The Monitor button on Motorola Portables and Mobiles are usually programmed for a short press to activate the radio mode/channel in receive mode for CSQ or carrier squelch receive no PL or DPL needed. And if held for a longer duration opens up the speaker on the radio so you can hear weak or non programmed PL or DPL transmissions, hence the hissing noise you hear.
Last edited by MOTOROLANUT; 10-05-2009 at 03:28 PM..
Reason: S
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