Recent content by GKC Aviation

I had this exact thing on a customers RV-6 a while ago. Trim indicator stuck full one way, but trim operation was fine. It was a broken wire at the trim actuator, one of the position sense wires. It was broken where the builder had put a plastic connector in to enable removal, behind the wingtip.

Because the squeal is being transmitted, and you can hear it in your sidetone, it is obviously on your mic audio line. This won't be anything anything to do with antenna connections. Personally, I would check the shield grounds of the shielded wires, especially the mic hi and lo wires. I would...

If you have power and ground to the units (both the remote transceiver and the control head, then you will get something on the radio screen regardless of network connections. Sounds like you did a force network load, which just reloads the software for each unit from the Skyview. Even if this...

I'll preface by saying I haven't had anything to do with the Bob Archer antennas. The paperwork says they are a VOR antenna, horizontally polarized. Assume that your coax from the nav antenna goes to a diplexer (not a splitter) to separate the NAV and GS into the two BNC inputs on the GNS430...

Did you set your connected sensor up as type 3 on the GP contact you connected it to? The GRT sensor has different resistance values to the original Dynon one. You are correct about the black wire being ground. I would run it back to one of the EIS grounds.

Well, that makes a difference. You have to put the audio into your intercom unit. Put your Superneurone audio HI into pin 17 of the intercom connector, and splice your audio ground into the wire that is currently in pin 1 of the intercom. That should work.

Hi Guy, The alert audio is connected to your Trig radio, not the Skyview. Go into your Trig radio configuration menu as posted by you above, by holding the MON button for two seconds or so. Go to the Auxiliary input volume, and turn it up. You might find that it is set to zero as the default...

You don't say what model Trig VHF you have, But I will assume a TY91 or a TY96 On a TY91, connect your alert audio HI to pin 20 of the main unit connector. If it is a TY96, then connect to Pin 14

Your voltage sense and your amps are two different sources giving you the same information. It really looks like your charging system is not working.

You are probably right, but it's a nice quick check to eliminate one possibility. Take literally two minutes. That is all we are suggesting. Both Jake and I do this for a living, we have seen a lot of weird faults, and it's best to start with the easy stuff first.

I have had a Plane Power alternator cause all sorts of dramas due to stator wiring connections cracking off internally. (it is a big problem with PP alternators) It still worked, but obviously the output voltage was something other than clean DC. Also the amps were jumping around, but so fast...

Yes, I've seen an installation where on transmit, all the CHT and EGT's go high. In this case, it was because the VHF antenna coax (even though it was RG400) was run very close to the EMS and EMS wiring harness. Moving the coax away fixed it. I don't think the EMS is shielded very well from RF...

On your hollow robotic receive audio, are you using a stereo or mono headset? Sometimes a mono headset in stereo jacks will cause some weirdness.

Just to check, have you adjusted the sidetone on the X25 COM? It might be set at zero. Sidetone is a product of the radio during transmit