aburkefl
Second Officer
Flight distance : 78612 ft
United States
Offline
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The "channel" you're referring to is not for the control of the aircraft. That's for the Lightbridge system that feeds video back to you.
Let me rephrase that - that's my understanding of how the system works. In "normal" FPV operation, the quad is running under control of the operator on 2.4 GHz. This system uses a technique called "spread spectrum" and once a transmitter is "bound" to a specific receiver, the chances of interference from another one close by is not impossible, but very unlikely. Also, in "normal" FPV operation, the video information goes from the quad back to the ground on frequencies in the 5.8 GHz range. And that's typically with an analog signal.
DJI is NOT using 5.8 GHz to send their video signal *and* the video signal is digital, not analog.
With today's technology, a group of RC flyers can all fly without the danger of interference from each other that we used to experience in the past. Despite that, I've seen comments from DJI that you should not fly with more than four or five others around. I've not really seen a good explanation of why they feel that way.
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