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  1. GKC Aviation

    SV-COM-T25 Transceiver Receive Volume Too Low

    Hi Alex COM-T25 pin 2 (phones out) goes to GMA340 pin 13 of the J1 connector COM-T25 pin 1 (phones ground) goes to GMA340 pin 14 of the J1 connector Cheers Glenn
  2. GKC Aviation

    Technical Service Bulletin

    For reference, my last two HDX screens received are serial numbers 35037 and 35038. The serial numbers are indeed that high.
  3. GKC Aviation

    SV-COM-T25 Transceiver Receive Volume Too Low

    Com #2 phones low should go to pin 14 of J1, not the ground loop COM#2 Phones Hi - Pin 13 COM#2 Phones Lo - Pin 14
  4. GKC Aviation

    Low volume when transmitting. Setting or Problem?

    Sidetone is set up in the Skyview setup menu.
  5. GKC Aviation

    Directional gyro

    Carry out the ground and in-flight compass calibration. It's in the installation manual, and quite easy.
  6. GKC Aviation

    Transponder & ADSB antenna location?

    Should be fine under the fibreglass body in the aft fuselage, Glassairs do a similar thing.. You will need a ground plane of about 100mm x 100mm, make it from a sheet of thin aluminium. Transponder and ADSB antennas need to be at least 2 ft apart, further if you can. Antennas obviously need to...
  7. GKC Aviation

    Supply Chain Update: How the current crisis is affecting Dynon

    Yes, through the Australian distributer. They got them in for me (I think they had 4 coming)
  8. GKC Aviation

    Supply Chain Update: How the current crisis is affecting Dynon

    I just received two HDX displays (experimental) No delay from ordering to receiving them.
  9. GKC Aviation

    Frequency specific background noise on Dynon com radio.

    Amazingly, I've seen this happen with a USB charge port, like the one you would put in to charge your iPad or phone. Pulled the wire off it, and the problem went away. Yes, it was frequency specific as well. Might be prudent to try depowering everything else one by one to see if it is...
  10. GKC Aviation

    HDX Audio Alerts - Only Very Faint

    Did you upgrade to HDX from the Dynon classic screens or something else? Go into the setup menus, and check the audio output, make sure it's not just set way too low SETUP MENU > SYSTEM SETUP > AUDIO SETUP. There's also a test mode in that menu to help you with fault finding. There are three...
  11. GKC Aviation

    HDX Audio Alerts - Only Very Faint

    Has this only just started happening, or has it been like it from the start?
  12. GKC Aviation

    D10A discontinued?

    It is, and it is. Even has autotrim 👌
  13. GKC Aviation

    D10A discontinued?

    Ah OK, I misunderstood that you wanted a front removal. I agree it's a strange way to mount instruments. A clamp mount that can be loosened from the front would be a good design idea, like the old Sperry HSI's in King-Airs
  14. GKC Aviation

    D10A discontinued?

    You assemble the D10A onto the flush mount first. You see the outer groups of 3 holes? they are to install nut plates / anchor nuts into, and you attach the flush mount to the panel with screws from the front of the panel. Yes, you have to physically hold the unit up to the back of the panel...
  15. GKC Aviation

    D10A discontinued?

    You install it in the $20 flush mount bracket, then you can remove it from the front no worries.
  16. GKC Aviation

    HDX Audio Alerts - Only Very Faint

    The audio from your Skyview goes into the ACM module via the EFIS PFD connector, comes out on the Audio Panel DB25 connector (labelled "audio panel"), and then to your PDA360 unswitched audio #1. Unswitched audio #2 is from your IFD, are the NAV alert sounds also muted? The reason you still get...
  17. GKC Aviation

    New Install - Comm and Intercom issue

    Good stuff mate! What are you building?
  18. GKC Aviation

    New Install - Comm and Intercom issue

    Yeah, putting the mic output from the IC straight into the audio input (your headset) won't work due to the impedance mismatch between the microphone, and the headset speakers. Try the mic audio from the jack straight into the radio input pin 23, and listen to your normal headset output as...
  19. GKC Aviation

    New Install - Comm and Intercom issue

    Since your wiring is all good, it's either going to be the intercom isn't switching audio through to the radio when PTT is active, or the radio isn't outputting sidetone. You could make up a small harness from your mic jack ring terminal (mic hi), straight to the radio input pin 23, this would...
  20. GKC Aviation

    New Install - Comm and Intercom issue

    Yeah, you should hear yourself on transmit (sidetone). Push it outside if you can and try for a radio check to another aircraft if possible, or borrow a handheld. Yes, it's a simple connection, check your mic hi and lo twisted pair aren't reversed at the radio (23 and 9), and you have...
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