What's should I expect performance wise vs. my homebuilt spider? I kind of want to get one of these for the inherent weather-proof qualities of the N connector and the antenna itself... it'd totally be worth the $45 if I see a bump in aircraft received, even a modest one. I believe I got lucky cutting my antenna, it seems to do GREAT compared to the users around me... but it only has 4 radials and I know many people preach 8 or even more.
I have done comparison of FA antenna with Cantenna, and found FA antenna performs much better.
My 8 leg Sipder gives nearly same performance as Cantenna, so you can safely take comparison of FA antenna with Cantenna as comparison of FA antenna with Spider.http://discussions.flightaware.com/post195176.html#p195176Note:
In above comparison, FA antenna used Filter+ProStic, while Cantenna used generic DVB-T. Later I replaced generic DVB-T (black) by Filter+ProStick, increasing performance of Cantenna by about 30%, but still FA antenna performs better (Message rate of FA antenna about 140% of Cantenna).