Sunday, September 27, 2009

Some pretty cool FPV video from Sweden

This guy has some beautiful transmission video. I have no idea how he can get that clear of a picture and clean transmission, but I think I'm beginning to see the value in a flat 9db patch antenna. I suspect I will need the signal tracker to properly keep it focused on the plane at only a 15 degree horizontal/vertical window. The alternative is to get an expensive diversity switch that allows you to multiplex in two separate receivers with two different antenna. That begins to get expensive, though.

He got pretty high up and when he popped out back down below the clouds, realized he had blown out over the ocean…and was out of battery. Some of the BEST FPV video feed (distortion free and very clear) that I’ve seen out there via transmission. Watch him trying to get back to shore. While watching I couldn’t believe he kept pushing those 3S lipos like he did, even before beginning his return. Lowest recommended voltage on the lipos is 3.2-3.3v per cell, and they are dead/ruined at 2.8v. This guy had 3S, and was below 9v and still going (scary). That is where they begin to smoke and get very hot (plus the drop on voltage once you get below 3.2v is insane fast). That video is ALSO why I’m 100% planning to run separate battery for the camera/tx/OSD/elogger. Should be good with just a 600-900mAh 3S?





1 comment:

  1. Great page Jeff!
    Although I'm using 3sA123 not liPo's.
    I hope you sort out the color issue.
    Fly safely ;)
    /David

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