Hey guys wanted to know if the 1.2Ghz low pass filters are good for something. Buy this http://www.dx.com/p/12lpf-1-2ghz-wireless-transmitter-low-pass-filter-silver-red-golden-175506#.U4--tnJ5MhM for my Vtx 1.2Ghz 700mW. some say they are useless.
Thank you!