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Attention: RC-CAM.com will be closing down August 2021.

The RC-Cam.com forum was the very first online community dedicated to the advancement of wireless video cameras on radio controlled (R/C) models. This is now called "FPV" (First Person View). We are proud of the contributions that our members have made to the FPV hobby.

We've seen significant changes over the last twenty years. Initially there were a lot of eager R/C hobbyist that built their own video systems. Allowing these creative individuals to share their work was the purpose of this site. Now the FPV market is flooded with low cost systems; Sadly DiY FPV video projects are now rarely discussed.

RC-CAM.com (main site and forum) will be closing down August 2021. This was announced several months ago (March 2021) to allow our members ample time to download any information that is important to them. After the site is shutdown the information will no longer be available here.

We appreciate every member's involvement with advancing the FPV hobby. It is indeed sad to say goodbye to all our online friends. Be safe and stay healthy.



More of a info question


headhunter23

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Was thinking over the weekend, doesn't the high ghz wireless telephones advertise that they get 10km range. I probably don't have enough background to understand why they can't transfer that technology over to video/radio range? ;) I'm assuming it would be illegal to use the same frequencys or whatever.

Ivan.

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The ones I have seen advertising 10km range are operating on the 268 and 394mhz frequencies. The base will xmit on one and receive on the other, and the handset will do vice versa.

Plus those are transmitting at half to one watt output power.

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Modern cordless phones are using digital spread spectrum modulation. The FCC rules allow higher RF power with digital modulation (up to 1W, with exceptions to 4W). On the other hand, our wireless video systems are allowed a bit less than 0.001W for license free use in the USA (0.01W in other countries).

The spread spectrum video systems are currently bulky, expensive, and have noticeable response lag. One day this may change, but for now it is what it is.

Just as important is that effective RF range is a function of RF bandwidth; the bandwidth for video is quite large. So generally speaking, watt for watt, wireless audio apps will always have much longer range than wireless video apps. It's the nature of the beast.

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