I suspect you're going to have to reinvent at least some of the wheel. I have a 10-watt panel I got several years ago and have used to power a K2 at several Field Days. It generates 0.5 amps at up to 20 volts in strong sunlight. Lower light intensity reduces the voltage but the amps stay constant. I run it into a charge controller (a kit from someone on this list), then a gel-cell battery in parallel with the K2. Running overnight, not very intensely, the battery is fully charged again at the end of FD.
Lead batteries are very robust about charging, and I don't know if the controller in the KX3 can accept this kind of wide-ranging power. My panel is small and light, and is mounted in a nylon cover with a zipper -- it's two panels which fold up. It was about $100 -- cheap at the time. Looking around the web, there are folding amorphous silicon panels for backpacking, for a lot of money, and larger, cheaper, heavier panels from places like Home Depot and Northern Tools. Kits are available. You'll need a silicon panel, a reverse-voltage protection diode, and some kind of charge controller if the KX3 doesn't already do that. I'd like to hear about your results. Peter W0LLN On Thu, Apr 18, 2013 at 3:28 PM, <[email protected]> wrote: > Rather than reinvent the wheel, does anybody have experience or > suggestions for a small solar array sufficient to keep a KX3 with internal > batteries going during daylight? I would assume 10 watts average over a > reasonable TX duty cycle would be enough.? Something strong enough or > flexible enough to withstand packing for air travel would be desirable. > > > 73?? -? Jim?? K8MR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
