Mobius Backpack FPV Testing

...pretty good so far

As I mentioned before, I've recently got an FPV system to complement the Mobius, consisting of a Docking Station with integrated FT592 transmitter and a RX-LCD5802 monitor with integrated receiver and battery.

This works straight up with the FT592 transmitter, however a little trial and error is required to get a frequency which is free from 2.4GHz interference. While there shouldn't be any, it can happen if there isn't a solid link between Tx and Rx.

After having tried several combinations, I've settled on channel D3 as suggested in an online forum, and found it to provide solid video quality up to around 800m, when it starts to get grainy. Ultimate range is around 900m, with the interference bands appearing and the video losing colour.

Worthy to note that the Mobius doesn't have to be recording to output video, and that likewise it will not switch off with the power input via the integrated voltage regulator. Also, if you do have your Mobius recording and the card fills, there's no fatal error. In fact you get a warning displayed on the monitor but you can carry on flying.

So I'm pretty happy with a solid 800m range from this mini system. However, as I'm wanting better range than that, I'm going to try a helical antenna, although I'll be getting a budget version as I'm not going to spend $100 on a copper spiral...

Rarebear Best Battery

...finding the sweet spot

I'd bought the Rarebear along with the suggested "ballistic" upgrade battery, the 4S nanotech 45-90C, which promised incredible performance. They were quite right, except the little plane end up being so fast that I can't possibly fly it at that speed, spending most of the time just over half throttle and occasionally bumping it to around two-thirds.

However I have done a battery swap with the Radjet, flying that on the little 4S's and running the Rarebear on the 3S 1300's. This afternoon I flew the Rarebear twice, firstly on a 25-35C and then on a 25-50C. One wouldn't expect much difference, however the 25-50C is, in my opinion, the perfect battery for the Rarebear; it makes the plane significantly fast enough to keep you on your toes but remains controllable enough to make super-low flyby's at full throttle, which is how I like to fly my fast planes.

Anyway, so I think the swap will be permanent, the Rarebear happily swooping around on the 3S and the Radjet screaming around on 4S...