the antenna issue is really the "polarization" of the signal.
I taped the camera's antenna vertically, to the nose cone.
leave the camera's antenna sticking out horizontally. leave the receiver's antenna sticking out horizontally too. the antennas gotta match - and the signal isn't strong enough to get through trees, human bodies, etc. so be sure the receiver always has line-of-sight to the camera/rocket.
Art suggested putting the receiver up on a pole to get it over the crowd.
I haven't done the math but you could probably improve things a bit with a 900MHz Yagi or dipole antenna instead of the shorty that comes with the set.
but the line-of-sight and 300' apogee of the Q EZ Payloader does the trick for us.
before I improve the antenna I gotta get a better frame rate. the camera does 60 frames (interlaced) per second, the video grabber does 30. sometimes the motion is jerky because the rocket moves a LOT between frames.
it's great fun to play with!!
Sandman, I don't think the cameras & radios are going to be obsolete or change much very soon. the batteries are the things holding us back right now. look, the boostervision camera is 22 grams. the 9v battery is 50 grams!!
by the way I put a Q EZ Payloader rocksim file up on EMRR, if anyone wants to sim the payloads & battery changes.