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Old Sep 20, 2012, 04:45 PM
Swen is offline
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Passion
Joined Sep 2009
383 Posts
They might be receivers, but they receive from somewhere. That somewhere is the video transmitter in the plane which transmits at the given frequencies for the goggle to receive. The US is not the only country where RC and FPV is used and Hobbyking market all over the world, not in US only. In fact, in different other countries it might be perfectly legal to use those frequencies, all does not develop around the US only. Every person must verify it himself and adjust the video transmitter to the legal frequency, that is why different frequencies are available. It can use the various 2.4 and 5.8ghz as listed.
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