---------------------------------------------------------- RV6-List Digest Archive --- Total Messages Posted Mon 09/08/03: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:54 PM - VHF transmit problem () 2. 02:59 PM - Re: VHF transmit problem (Heiglesias@cs.com) 3. 05:33 PM - Re: VHF transmit problem (Genev E Reed) ________________________________ Message 1 _____________________________________ Time: 01:54:57 PM PST US From: <2putt@cox-internet.com> Subject: RV6-List: VHF transmit problem --> RV6-List message posted by: <2putt@cox-internet.com> Need some help. New RV6, N99ST flew first time 4 September. Wonderful airplane!! Garmin GNS430 for radio with PS Engineering PM3000 interphone. PTT switches both yokes. Radio receives beautifully but will not transmit. Local receivers hear the "click" but no voice. We've rung out the wiring (John Stark pre-wires) and it seems OK. Antenna I'm told is good since I can receive. Pin #6 on the Garmin (audio mic hi) will not gound out indicating the wiring is not grounded from the Garmin to the jacks. Tried different headsets. Interphone works fine, but back to shop to double check. Garmin has been checked and it's good. Any ideas?? I'm stumped. Thanx. Steve Steve&Terri Chambers 2putt@cox-internet.com 501-855-3088 ________________________________ Message 2 _____________________________________ Time: 02:59:06 PM PST US From: Heiglesias@cs.com Subject: Re: RV6-List: VHF transmit problem --> RV6-List message posted by: Heiglesias@cs.com Steve: I have a Garmin 2 channel VHF and GPS in my RV6. First flew on July 12. Had some problems interfacing to the softcomm intercom. I can't recall exactly the model of the Garmin (I think is the 250 XLsomething). The main problem I had is that I was using MONO headsets and the wiring in the jacks is for stereo. I would have to look at the diagrams because I believe there are two levels of mike input. But what you have to determine is if the mike is triggering the carrier output. (PTT). You are right if you are receiving (and not just the guy next door) then your antenna connection should be ok. There is a chance that you have a problem with your mike audio connection. Most of these intercoms have a jack connection that wires the headset directly to the radio by passing the intercom (for emergency). Check to see if yours has this. In this way at least you make sure your radio Xmit works. Eduardo Iglesias N23EJ Houston ________________________________ Message 3 _____________________________________ Time: 05:33:38 PM PST US Subject: Re: RV6-List: VHF transmit problem From: Genev E Reed --> RV6-List message posted by: Genev E Reed I had a problem like that and found that my radio was not going deep enough into the tray. Doyle