1.3ghz Right Hand Turn Helical FPV Antenna

I found the cross hard to keep on the bed without laying down a grid first.
I should note maths was done on 1280mhz
I have not range tested my one fully only about 800 meters.

Credits go to:
http://www.rcgroups.com/forums/showthread.php?t=1377791

The 10% less tube is in case you wanted something smaller to wind it onto first to stop the spring back of the copper.

I used a copper sticky contact for the reflector.