I have been trying to get the pressure altitude information to transmit correctly from the Skyview to the transponder for over a month. I ended up taking the transponder in for an update but the dang thing still wouldn't work.
I had the instructions and had Googled everything I could think of. Today, I just started tring DIFFERENT options. On my transponder, it looks like the signal is coming in through the second RS232 port. When I changed the input to it, the pressure altitude started working!
