I bet the TT got pretty dirty TX at low voltage. Rick
Tiny iPhone keypad, sorry for typos On Jun 28, 2012, at 10:19 AM, "John Kountz" <[email protected]> wrote: > Fellow K3 guys: > N6L, our 2AORG solar powered Field Day station was specifically configured > to demonstrate off-the-grid emergency opperations and thus provided an > excellent opportunity to put one of my two K3 (sn 3271 and 2215) to work > under less than the comforts of home. > Disquietingly, the K3 wasn't up to the task! > Let me explain: both the K3 and our second radio, a TenTec Eagle (Model > 599AT sn 3051271430) were fed from the same 120 watt Power Film Panel /110 > AmpHr GSM battery combination and operated at 100W output. In tandom > operation, the Eagle was not affected by momentary voltage dips (below 10 > VDC) whereas the K3 would shut down. > With both radios in SSB mode and following the first K3 shut down, the K3s > operating environment was changed: different bands, different antennas, > reduced power output (to 10 watts) different operators and, finally > different solar /GSM battery combinations. > None remedied the problem. > Following from our experience, while the K3 and the Eagle offer excellent > operating characteristics, beware of the K3 under extenuating > circumstances; it's liable to let you down even at low output power levels. > The only potential solution may be found in a voltage boost device such as > the "N8XJK boost regulators" > http://stores.tgelectronics.org/Categories.bok?category=Boosters > Unfortunately, following the research necessary to uncover a source of > these devices Field Day was over. > Next year for sure! > 73 > John Kountz, WO1S/T6EE > > ______________________________________________________________ > 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
