Isaac
Well Known Member
I am working on a new install of a Dynon HDX display and Garmin GTR 200 VHF Com radio and am not able to send a new frequency via the Dynon touch screeen to the GTR 200.
The Dynon HDX displays the active frequency tuned manually on the GTR 200 at the top of the display and on the VHF COMM touch screen menu. When tuning the GTR manually the new active frequency of the GTR 200 is immediately displayed on the Dynon HDX display.
When trying to enter a new frequency via the Dynon touch screen, the change entered via the Dynon is immediately rejected and returns to the frequency that was previously manually set on the GTR 200.
Wiring has been confirmed multiple times to be correct. Different serial ports (1 and 3) of the Dynon that worked correctly when connected to other equipment have been tried with no success.
Have tried using GTR 200, SL 30 and SL 40 VHF Com radio options in the Dynon serial port setup configuration settings but all show the same behavior.
Have confirmed with Dynon tech support that the HDX is being configured correctly. As far as I can tell from reading the GTR install manual, the GTR 200 doesn't have any RS232 configuration settings.
The RS 232 status page on the GTR 200 never indicates that data is received even though the TX counter on the Dynon HDX increments each time a frequency change is entered.
All indication are pointing at a problem with the GTR 200 receiving tuning changes via its RS232 serial input port. Before sending the radio back to Garmin for bench testing, I wanted to see if anyone had experienced a similar problem or had any suggestions/comments or what I might be overlooking.
The Dynon HDX displays the active frequency tuned manually on the GTR 200 at the top of the display and on the VHF COMM touch screen menu. When tuning the GTR manually the new active frequency of the GTR 200 is immediately displayed on the Dynon HDX display.
When trying to enter a new frequency via the Dynon touch screen, the change entered via the Dynon is immediately rejected and returns to the frequency that was previously manually set on the GTR 200.
Wiring has been confirmed multiple times to be correct. Different serial ports (1 and 3) of the Dynon that worked correctly when connected to other equipment have been tried with no success.
Have tried using GTR 200, SL 30 and SL 40 VHF Com radio options in the Dynon serial port setup configuration settings but all show the same behavior.
Have confirmed with Dynon tech support that the HDX is being configured correctly. As far as I can tell from reading the GTR install manual, the GTR 200 doesn't have any RS232 configuration settings.
The RS 232 status page on the GTR 200 never indicates that data is received even though the TX counter on the Dynon HDX increments each time a frequency change is entered.
All indication are pointing at a problem with the GTR 200 receiving tuning changes via its RS232 serial input port. Before sending the radio back to Garmin for bench testing, I wanted to see if anyone had experienced a similar problem or had any suggestions/comments or what I might be overlooking.