On Monday, March 19, 2018 at 10:26:16 AM UTC-6, Dirk_PW wrote:
I'm having a similar problem with just a mode-c transponder in the towplane. I'm not getting a 'collision' warning per se, but the S80 does indicate a xpndr equipped aircraft is in close proximity. The issue with this is that the display is simply locked out from all other functions during the entire tow. That is, there is no way to get your vario display back until after the tow and the aircraft exceeds the threat threshold. This 'problem' also occurs when flying close to xpdr equipped gliders. I had caught up to a friend that had a mode-c xpdr and we flew together for over an hour. During the whole time, the S80 displayed the xpdr traffic page and I couldn't navigate past it to see any other pages. I had to ask my friend to turn off his transponder while we were flying together. It would be nice if the instrument had an "acknowledge" feature where I could suppress the alert for some configurable period of time so I can get access to the rest of the vario features (similar to the way modern computers handle airspace warnings). I want to tell the computer... "I see the traffic, now go away for 5 minutes", but I don't want to turn it off permanently, however for obvious reasons.

Has anyone else experienced this and have a solution?

I like the idea of an "acknowledge" feature similar to airspace warnings on the LXNav S80. I've sent LXNav a comment on this problem with ADS-B out. Let see what they say... I'm also using the Flarm as my GPS source to the S80 and Oudie, so turning it off during tow is not a good option for me.