Tonight I did a return loss sweep on my Hobby Wireless 910 MHz patch antenna. Attached is a picture I took of the analyzer screen. Looks like it's tuned to about 917MHz (the dip). The center of the screen is at 910MHz and each division is 5MHz. Vertical is 5db/div. Basically, any frequency that is at least three divisions down (SWR<1.5:1) from the top is a reasonable match. This is actually better than I might have expected for a production unit (not individually tuned). I also tested the whip antenna that came with the receiver and it is a little low in frequency and much broader than the patch. I think it's just fine for what it is to. ...Tiger
Impressive, I have read where Hobby Wireless sells some of the better FPV equipment, looks like it's true.
