Bill, The front panel voltage display on a KX3 will -not- be accurate for the voltage at the input- power connector of the KXPA100. This voltage must be measured AT THE CONNECTOR on the rear of the KXPA100 to know what's being delivered to the PA.
73! K0PP On Sun, May 22, 2016 at 9:40 AM, Nr4c <n...@widomaker.com> wrote: > Or just use the Voltage reading displayed on the K3/KX3 front panel. It's > quite accurate. > > Sent from my iPhone > ...nr4c. bill > > > > On May 22, 2016, at 10:52 AM, David Orman <orma...@corenode.com> wrote: > > > > Another question - how long/what gauge is the wire running to your > KXPA100? > > I wouldn't expect enough drop to pull your voltage down to a point at > which > > it cuts back power, but you never know. Check your KX3 for the source > > voltage when transmitting, that'll tell you if you're dropping below the > > threshold for power reduction. For example, 16 gauge copper will drop > about > > 1.2 volts on a 10 foot run @ 15A current draw. > > > >> On Sat, May 21, 2016 at 9:58 PM, N6MQL <n6...@arrl.net> wrote: > >> > >> Wayne, > >> > >> 2 things... First I mentioned to David S in the service department that > >> the K3 is no longer transmitting more than 94 watts out on 17 meters > >> regardless of the SWR/ impedance. David said that this was a known issue > >> due to software and that it was being worked on. However I haven't seen > >> anything about this issue so I'm wondering if this is true and if so has > >> there been any updates to fix it. > >> Secondly, I'm noticing that my KXPA100 can not produce more that 80 > watts > >> on most bands and 60 on others when I don't supply it with as much as > 15v > >> DC on a 30 amp supply. This after I did the KX3 / KPXA calibration > >> procedure. Why is it that a "mobile" amp that would normally be powered > >> with 12v DC from a car battery not be able to provide the power output > that > >> it is sold as (100 watts)?. Has there been some kind of revisions to the > >> first run boards that I should be exchanging them with? > >> > >> Thank you for your answers 73 > >> > >> Mike > >> N6MQL > >> ______________________________________________________________ > >> 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 > >> Message delivered to orma...@corenode.com > >> > > ______________________________________________________________ > > 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 > > Message delivered to n...@widomaker.com > > ______________________________________________________________ > 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 > Message delivered to kengk...@gmail.com > ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
