These antenna's are a great way to improve the perfomance of your FPV system. They are a circular polarized antenna which helps reject "multipath interfence, this is a problem that plagues the standard dipole stock antenna's.
This style of antenna has been proven to increase range and the video clarity and has become the standard aftermarket upgrade for most FPV systems. These antenna have 3 lobes for the transmitter and 4 lobes for the receiver, they are encased in a smart 2 piece plastic molded mushroom shaped housing.
Frequency Range: 5725~5875GHz
Connector: SMA (straight)
Dimensions (Transmitter): Height 78mm Diameter 36mm
Dimensions (Receiver): Height 85mm Diameter 36mm
Lobes: 4 receiver, 3 transmitter
Polarization: Left hand
Antennas seem to work well with decent range, however quality needs to be dealt with. I opened one of them up to find that it had oxidation on it. For the price I can't really complain though as it's still better than a dipole.The range and clarity of the signal from these antennas are terrible. They are badly made (the soldiering is horrific) and it doesn't receive well with a right hand polarized signal near by at the same 200mw transmitters. I replaced the internals with hand made lobes and it works much better. For the Price, you really can't argue.So s gool. Antenna set smaGood quality for this price, but chassis could be better assembled. Two halves of mushroom-style box wasn't glued together.