You might want to get a battery booster. Here is one http://stores.tgelectronics.org/Detail.bok?no=10.
I can recommend that one. Had one for a couple years and use it to boost to 14.5VDC from whatever voltage any time of day from a solar-charged battery. I think my K3 likes that 14.5V! Matt Zilmer Consultant - Product Management Dept. Magellan Navigation / MiTAC Digital Corp. Tel: (909) 394-6052 Cell: (909) 730-6552 Si fractum non sit, noli id reficere -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Peter Wollan Sent: Thursday, June 28, 2012 11:07 AM To: John Kountz Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Field Day experience with K3 The problem here isn't the battery AH capacity, but the voltage supply. It could be dropping below 10 vdc because both radios are on the same supply, or because the power supply wires are too fine gauge, or because the battery is defective. The K3 is less robust to supply voltage than the other Elecraft radios. The K2 is rated for 10-15 volts; the K1, KX1, and KX3 go down a lot lower, I think 8 volts. I looked at the K3 documents to see what minimum voltage it requires, and I couldn't find it -- I think it's something like 11, but it may be 11.5 or even 12. You'd probably do fine just by using a separate battery for each radio, and not letting it run down too far. A voltage booster isn't needed, as lots of operators all over the world have demonstrated. Peter W0LLN On Thu, Jun 28, 2012 at 12:19 PM, John Kountz <j...@t6ee.com> wrote: >... In tandom > operation, the Eagle was not affected by momentary voltage dips (below >10 > VDC) whereas the K3 would shut down. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
