10ixwwybk2
New Member
- Joined
- Jun 7, 2011
- Messages
- 27
In my RV9 I have twin Dynon Skyviews and a FUNKE 833 radio.
Recently it has become very noisy to the extent that it is almost unusable.
The noise cuts out when there are transmissions on frequency or I transmit.
I thought it was a radio problem, and as we have recently changed to 833khz channel spacing in the UK suspected the radio might need retuning. I had a problem with some frequencies when I first had the radio and this solved the problem.
I returned it to FUNKE four weeks ago and have not yet had it back.
Today I went to fly using my handheld radio which I was able to connect to the RV’s antenna only to find I still had the same noise on my handheld. It decreases to nothing as you move the radio about 30” from the panel.
I have pulled it every CB and fuse and it only goes when I isolate both the Dynons, but with either one on it still persists. So that seems to rule them out.
Using the handheld’s aerial made no difference.
Disconnecting recent changes, the installation of PAWS and two new Dynon back up batteries made no difference.
This is before engine start so it rules out the alternator.
I installed the Skyview in-line filters and also grounded the Skyview chassis’s.
I have also disconnected a USB which is said to be problematic.
I have isolated the Dynon audio output.
So what can be generating this interference that seems to coming from either Skyview when all other inputs to it, autopilot servos, transponder, etc are isolated.
Please can anyone suggest what the problem might be or what I can try next.
Robin Taylor
Recently it has become very noisy to the extent that it is almost unusable.
The noise cuts out when there are transmissions on frequency or I transmit.
I thought it was a radio problem, and as we have recently changed to 833khz channel spacing in the UK suspected the radio might need retuning. I had a problem with some frequencies when I first had the radio and this solved the problem.
I returned it to FUNKE four weeks ago and have not yet had it back.
Today I went to fly using my handheld radio which I was able to connect to the RV’s antenna only to find I still had the same noise on my handheld. It decreases to nothing as you move the radio about 30” from the panel.
I have pulled it every CB and fuse and it only goes when I isolate both the Dynons, but with either one on it still persists. So that seems to rule them out.
Using the handheld’s aerial made no difference.
Disconnecting recent changes, the installation of PAWS and two new Dynon back up batteries made no difference.
This is before engine start so it rules out the alternator.
I installed the Skyview in-line filters and also grounded the Skyview chassis’s.
I have also disconnected a USB which is said to be problematic.
I have isolated the Dynon audio output.
So what can be generating this interference that seems to coming from either Skyview when all other inputs to it, autopilot servos, transponder, etc are isolated.
Please can anyone suggest what the problem might be or what I can try next.
Robin Taylor
