PPs solder real well. Just keep the solder off the outer portion of the round part where the wire fits.
Sent from my iPhone ...nr4c. bill > On Dec 20, 2016, at 5:34 PM, Gary Smith <[email protected]> wrote: > > Hi Jim & the others who replied, > > This is a follow-up for someone in the > future who looks for the same solution. > > Yeah, the small amount of difference in > the wattage is insignificant but > considering all the radios I've owned, the > low end of the bands were always the > highest output. 10M was usually the lowest > output & with the K3/K3s, 6M was always as > good as the other bands watt wise and 160 > was full output. This not being the case, > I was concerned. > > I had done the calibration and raised the > output to 87W but that was it. As was > suggested, I raised the voltage from the > PS to give me 13.8V on transmit which > required 14.6V resting. I'm using the > cable Elecraft supplies and I'm suspecting > it could be just a tad lower gauge/thicker > copper to reduce the resistance but on > 160M, I am now getting a 115W reading on > the P3 and 113W on the LP-100A. > > So the increased voltage was the > difference in my case. A thicker wire > would certainly require less voltage than > 14.6 and that's what I am going to look > into. With the power Pole connector, I'll > have to look a little deeper into what > will work best. I have no crimping tool > for Power Pole so that makes it more of a > challenge. > > Anyway, thanks Jim & all who suggested the > higher voltage, it was the answer in this > instance. > > 73, > > Gary > KA1J > > >>> On Fri,12/16/2016 9:27 PM, Gary Smith wrote: >>> With the ATU in or out it gives 81W out on 160, SWR is 1.28 >>> >>> All other bands except 6M give around 98W, 6M gives 87W >>> >>> Any ideas what might be causing the lower output on 160? >> >> 81W is 0.9 dB less than 100W; 87W is 0.6 dB less than 100W. On 6M, >> it's probably a simple matter of efficiency -- power amps are slightly >> less efficient on 6M than on the lower bands. >> >> And there may be a power calibration issue. There's a procedure in the >> manual for doing that. >> >> Or even error in the power measurement itself. Few power meters are >> specified for better than 5%. Bird wattmeters are specified as 5% of >> full scale, and a condition of that is that the slug is in >> calibration. If, for example, you're using a 250W slug, accuracy is >> +/- 12.5W. I use an N8LP LP100A, which specifies 5% at any power level >> from 1W, and quotes 3% typical. 5% is 0.22 dB. 3% is 0.13 dB. >> >> Low DC voltage can also be an issue, either due to the power supply >> itself or IR loss in the power cable (or even the connector(s). Use >> the built-in metering function to check DC voltage with just the RX >> running and keydown. Short, fat copper is your friend. :) >> >> 73, Jim K9YC >> >> ______________________________________________________________ >> 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 >> Message delivered to [email protected] >> > > > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
