Any thoughts on how to efficiently determine which of my components is failing? I started with a Micro-Trak 300 and cheap whip antenna, with the unit taped to the top longeron in the baggage compartment. Here's what I got on my first flight (a formation practice):
http://aprs.fi/?call=N373JP&dt=1221868800&mt=m&z=11&timerange=86400
Slowly, over time, the performance seemed to degrade. I wasn't necessarily aware of it because I was trying some tweaks and such. Somewhere along the way I added the 8 watt micro amp with limited improvement (still not back to the original quality), and yesterday tested my wingtip installation complete with J-pole antenna only to get this:
http://aprs.fi/?call=N373JP&mt=m&z=11&timerange=86400
Clearly something isn't performing up to snuff. I'm going to give Pete the benefit of the doubt and guess it's NOT his J-pole, so that leaves the GPS or the transmitter (I copied the transmitter configuration from Pete too, so I'm gonna guess that's also OK). Any suggestions on how to troubleshoot before I start buying and swapping in new parts?
Thanks!
http://aprs.fi/?call=N373JP&dt=1221868800&mt=m&z=11&timerange=86400
Slowly, over time, the performance seemed to degrade. I wasn't necessarily aware of it because I was trying some tweaks and such. Somewhere along the way I added the 8 watt micro amp with limited improvement (still not back to the original quality), and yesterday tested my wingtip installation complete with J-pole antenna only to get this:
http://aprs.fi/?call=N373JP&mt=m&z=11&timerange=86400
Clearly something isn't performing up to snuff. I'm going to give Pete the benefit of the doubt and guess it's NOT his J-pole, so that leaves the GPS or the transmitter (I copied the transmitter configuration from Pete too, so I'm gonna guess that's also OK). Any suggestions on how to troubleshoot before I start buying and swapping in new parts?
Thanks!