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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 is being announced now (March 2021) so that everyone has 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.

automatic Antenna pan tilt control using RSSI

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Noman - also not sure what you mean, but I suspect you are talking about using a constantly on rf downlink of some type? What signal type did you have in mind, if any? - a dedicated rf signal of sorts (modulated with a "beep beep ..."?), or an existing modulated signal(e.g. if you have video transmission onboard?) - or some other kind of rf signal?

Using a received rf signal [strength] is not the easiest way to go about pointing an antenna if you are centering everything around a single ground station. There are a few issues that have to be factored for to get such a system working as relaibly as you'd want it to entrusted with a model plane (meaning quickly enough & accurately enough), but it's not impossible. There is (or was)a rather nicely written up university thesis in PDF somewhere on the web: some guys used a tripod mounted parabolic grid between to axial mode helicals or yagis (using the helicals/yagis to get the differential & comparitive rf measurements required to point the parabolic grid). They posted up a uTube video as well - it seemed to work perfectly well.

If its the experimental nature of the exercise you wish to tackle, then go for it, but if it's just a working tracking system you wish to get up and running, then investing in one of the well tried, tested GPS co-ordinate based systems made for RC model flying, would be a better choice in my humble opinion. They are relatively cheap, quick, accurate, easy to incorporate or add-on to existing onboard hardware, and have proved to be quite reliable.

Building an "RSSI" type system from scratch will involve a not inconsiderable investment in time, and, I would think ultimately extra expense as well. It's not likely to be as accurate as a GPS based system, which may or may not be an issue(?). On the plus side, you'll sure learn a lot though in the process.

Edited by Helix1
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