Recent content by Phamtoming

Yes, it would be interesting to see if they took each other into account when deciding how to set up the TDM. I did note that the system I evaluated didn't seem to try to avoid the high power WiFI AP's near me and just hopped over them probably hoping the speed of the hops and error tolerances...

Looks good Shammyh. It was nice to check my research against yours and see we're on the same page! That makes me feel better about accuracy of the data. I have some much better photos of the spectral analysis, but I need to edit my GPS location out of them before posting (hence me only posting...

Not too much. If you were in a very heavily saturated RF environment (like a room with several WiFi AP's around you, etc., ) it would likely degrade the quality of your video downlink, but overall it doesn't seem to make a huge difference in field tests where "auto" channel selection is...

Yes, changing channels seems to only move the operating frequency of the video downlink. In field tests, I have found that the "clean" channels don't seem to really offer too much more in terms of overall range of the video downlink side of things unless I'm close to a strong source of...

I haven't hooked and antenna analyzer up to any of the antennas yet to measure the return loss, but if you're sticking to channels within the ISM band it really shouldn't make much of a difference in regard to the antenna. The antennas on the Phantom and Controller seem to be pretty broadbanded...

No, the control link uses the entire 2.4 Ghz ISM spectrum. It is a frequency hopping signal that covers from ~2.406 - 2.476 Ghz continuously. The signal occupies the entire band and when you are also using that band to do your video downlink on, the controller seems to skip that portion of the...

However, keep in mind operating outside the 2.4 Ghz ISM band is illegal unless you are a licensed HAM (for the lower 2.3-2.4 Ghz channels) and operating above is quite simply against FCC regulations. Use at your own risk. :)

Recently, I have taken a little time to profile the RF systems for the Phantom 3 "Lightbridge" system. I have unlocked the application installed on my mobile device to be able to select all 32 Channels that Lightbridge offers. It should be noted that the channels outside the 2.4 Ghz unlicensed...