In the last few weeks I simplified my FPV setup drastically. No more antenna tracker and pan/tilt is also gone.
The RX antenna was changed to a new one from China for 15€ and free shipping. This antenna performs best for the price. A range test was stopped at 13km due to lost line of sight. But it’s sure 15km+ can be reached as long as you have line of sight to the transmitter.
The antenna is from eBay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280402380910
Receiver is a standard 1200MHz one, only did the SAW filter mod (descripted here) and added a LiPo volatage monitor with 3 LEDs.