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Garmin SL40/GMA 340 - how to control mic volume when TX

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Tim(at)MyRV10.com
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Posted: Wed Sep 20, 2006 11:42 am Post subject: Garmin SL40/GMA 340 - how to control mic volume when TX

Yes, the SL40 has a setup of the sidetone level.  It should be

on page 18 of the install manual (at least of the version I

have) telling you how to adjust it.



Tim Olson - RV-10 N104CD - Flying

do not archive

Gerry Filby wrote:

 	  Quote: 	
		   

 

 

 I have a Garmin SL40 COM and a GM340 audio panel installed in 

 my RV-9.  Got all the wiring finished this past weekend and 

 wheeled her out onto the ramp for a radio check.

 

 When I keyed the Mic (actually I grounded the PTT wire - no 

 stick installed yet) and called out to my local airport's 

 pattern for a radio check, the sound of my own voice in the 

 headset was deafening.  Folks in the pattern called out "loud 

 and clear" so I'm not worried about the functioning of the 

 radio per se.  All other volumes in the headset - 

 intercom/chatter on the frequency - are just fine - its only 

 when I TX that I get deafened.

 

 Is there an adjustment somewhere, or have I goofed up my wiring 

 somewhere ?

 

 __g__

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