Phil - It is probably unusual to get a full 5 watts out of a KX1 even with a 12V or slightly better power supply. You might get pretty close if everything is perfect, but I'm happy to see 3 watts on mine.
Of course, its alway amazing what you can accomplish with only 1 or 2 watts! Chip AE5KA On Thu, Aug 22, 2013 at 12:23 PM, PHILIP GRAITCER <pgra...@me.com> wrote: > Last week, I asked for the group's help when I was in the field with a KX1 > and an antenna that wouldn't tune. Here's my report. > > I trimmed the 66' wire that I have used as an End Fed Half Wave (with > other rigs and tuners) to 41 feet, added a 15 foot counterpoise, and the > rig tuned just fine. > > I was unable to do anything about the input voltage, since I lacked a coax > jack that would have let me feed in 12 volts, instead of the internal 9v > from the Lithium AA cells. So the power remained at about 1.8-1.9Watts. SWR > was below 1.5, according to the KX1's display. I had left the 3S Lithium > battery pack at home partly out of laziness, partly because of my fears of > losing it in airport security. > > I did make a few contacts, so - mission accomplished. > > I did experience unusual QRM in a campgound in rural Montana on 40 meters. > It sounded like a switching power supply - and it was across the entire > band. Mostly steady, although it did stop now and then. I thought it might > have been a generator from a nearby RV but couldn't hear one going. Any > ideas what kind of electric interference that might be generated from > nearby campers? There was a mix of RVs and tent campers at the campground. > I was in a tent. > > Lastly, are there any mods to the KX1 that might get it to 5 watts if I > put a 12v supply on it? I did the mod suggested by Elecraft, but the best I > can get is around 4 watts with a 12V. I do get that on all bands. > > I'm in upper Michigan this week. This time with my 12V 3S Lithium battery. > Keep a listen out for me! > > Thanks, > Phil, W3HZZ > ______________________________________________________________ > 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
