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pc If it were me I'd check co pilots mic wiring, you say the headsets work in other planes so it's reasonable to assume the 'issue' is in your plane. An example - in a recent troubleshooting audio issue (wiring done 6 years ago) I found that pax phone audio (mono) wire had been wired to the...

Some headsets have mic gain adjustment capability, maybe yours has ? Jake J

Are you saying all is working ok now ? Jake J

It's really no big deal here IMO, just try different values & it'll be obvious which one is correct - you're allowed to work this out for yourself, it won't break the box  :) Jake J

Norman You also need to configure the Gtx serial IN to Icarus Alt whether it's port 1 or 2 that you've wired the Dynon to in the GTX ;) Jake J

You have a PM Jake J

Donald You have a PM Jake J

Hi Bruce If heat is the issue then that's probably a function of the Jabiru panel design as it's basically a box without provision for heat, that builds up, to escape. I'd insert some mesh grilles into the top of the glareshield to let the heat flow out. I also have some of that (black...

Also, what is the position of the antenna relative to the headset jacks & rest of the avionics ? Did you use shielded cables for the ph/mic jacks ? Is the shield grounded at the radio or intercom end only ? Jake J

Just thought I'd add some info here- the Gps is excellent, it'll pick up satellites when Tso'd gps eg Garmin 650 won't. Just thought I'd mention that I have seen a problem with 1 only puck - it was intermittent due to an installer having flexed the wiring too much ( inadvertently of course)...

Donald What size is the Transponder groundplane ? Jake J

RTM, that's why Dynon produce it - it's all there on pages 4-7 to 4-8 vers 10.0 ::) Jake J

That (black screen) may indicate you have lost power to it. Due to the characteristics of the VP-X I'd use a test light between the pwr/gnd pins on the SV connector to determine if there is power there when master is on. I always set both SVs as "always on" in the VPX. Jake J

Yes, that is the correct AS&S p/n if you are installing it between the Fuel Control Unit & distributor on top of engine  ;)  But why not buy it from Dynon as they give us so much support & we can at least support them too ? Jake J

Mark You probably have done this but I'd check to see if the serial port settings etc are the same on both units. It may not make a difference but that scenario, with different settings, sure created various issues with a customers dual SV setup until we figured it out by phone :) Jake J

Mark A simple test - disconnect the batteries & try your test again ;) Jake J

Terry PM me with your ph # or email & we can discuss this at length. I have a Glasair so I know your concern :) Jake J

Antennas close (close as 1 ft) to the ADAHRS works on all installations I've done on RV's, the skin is doing it's job of shielding ;) JakeJ

Hugh Take it out of auto gnd/air if you have that set or you won't be able to change modes ;) Jake J

What's the point ? - there can be heaps of variables here & without being there & seeing the work it'll be just a lot of conjecture without a definitive result. I rather just spend time building or flying :) Jake J