I'm working with parks in the Congo for anti-poaching and general surveillance of the parks (animal counts at watering holes, etc) and wondering about the "inverse" - if one might use digipeaters to maintain contact…"
"Has any study been made of coupling a r/c gas engine to a small generator. The weight would be less than the 4-stoke motor, but so would the output. I see on eBay a 1 oz 6v generator operating at 12,900 rpm with a stall output of 2300 mA. Then a…"
"I am also a Radio Ham (G0OOY) but haven't done much for the past few years. However I have been looking at doing this sort of thing. I have a hand held 2Mtr/70cms with repeater functions etc.
I have now bought an X8 Wing from www.bevrc.com…"
"Using a UAV as a repeater is a great idea and it happens to works really well. I have flown an Arcturus T-16 with a radio relay payload that was setup for the Forest Service VHF radios. We were limited in our altitude during that…"
"On a GX35 you might be able to tap the magneto instead of using a generator. But that would suck some power from your ignition which might not be the best thing. Probably best to use a CDI ignition, ditch the flywheel, and run a small…"
"I would suggest the Honda GX35 4-stroke motor driving a generator in parallel. you can use an electric motor with certain controllers to achieve the power generation. For an Airframe, you can probably get away with a Senior Telemaster or the like.…"
"If you are good with a cross band repeater, you could just use an HT like a Yaesu VX-8R which also does APRS. Although, I don't think it does APRS and the repeater function simultaneously.
As a HAM (KO4JY) I never considered…"
"For the radio, I was thinking a self contained hand held and then mounting it in the a/c. The battery life is significantly longer than the drone would fly for.
The xbee website confuses me still. Some of those radios have a 40 mile range, but, how…"
"Where would you get the power to run all the radio gear? I've got no idea how much power you're trying to run, but it sounds like it might be a pretty good drain on batteries.
I got some cheap serial radio modems for my application…"