mike.smith wrote:fastj22 wrote:One thing I gleaned was the way Navworx sniffs the squawk code and pressure altitude from a Mode C transponder. My Skyguard does the same thing. But I've noticed I don't always see myself until I get high enough even though I see towers on WingX and am seeing other traffic. It seems the unit will not send your location information unless it can get the pressure altitude from your transponder and your mode C transponder only sends it when it gets pinged by ATC. So even though the Skyguard is sniffing my squawk and PA, unless I'm in a radar area, I don't send out my position and thus don't see myself all the time.
The Skyguard setup manual shows a static pressure line directly into the Skyguard box. So shouldn't the box get the PA directly from the static pressure line? I've been emailing with the company and have asked them a boat load of questions. For you, I'll just ask if you like the system and how it's wired and plumbed? I did note on their diagram they show 4 UAT antennas! Do you have 4 antennas?
There is no port for the pressure. It actually has 6 antennae. Gps, transponder sniffer, wifi, UAT out, UAT in, and 1090 in. I put two external UAT on the belly, one for in, one for out and a third for the mode C transponder out. The two outs have to be 5 ft apart. The sniffer, 1090 and wifi use a short whip attached to the case. The gps is a magnetic puck with a 10ft cable. It comes with a cigarette lighter power adapter I just cut and wired into my panel on a switch. I mounted it behind my shoulders on a tray.
I initially had some gps problems, dropping fixes periodically. I bought a second antenna off amazon and it cleared up. There is some software upgrade I need to send it back to have done, but he is doing it in batches and told us we can fly with what we have until it gets done.