Hi Bob,
Rather than estimating the loss in your power cord, your K3 has the capability to accurately measure and display the DC power voltage internal to your transceiver. Tap DISPLAY and rotate the VFO B dial to show the K3 power supply voltage when you're transmitting. 73 Frank W3LPL ----- Original Message ----- From: "Bob McGraw K4TAX" <[email protected]> To: [email protected] Sent: Sunday, December 31, 2017 2:27:01 PM Subject: Re: [Elecraft] 80 meters I run my power supply at 14.0 volts as measured at the supply. This is done to accommodate the ~0.25 - ~0.35 volt drop in the DC line between the supply and the radio when in transmit. 73 Bob, K4TAX On 12/30/2017 10:20 PM, Barthold Lichtenbelt via Elecraft wrote: > Make sure your power supply provides enough voltage and can handle the power > draw (300 watts is probably a good number). This happened to me too when I > accidentally adjusted the voltage of my PSU too low. I now have it at 13.6V. > > Sent from Mail for Windows 10 > > From: Mal Speer > Sent: Saturday, December 30, 2017 8:01 PM > To: 'Mal Speer'; [email protected] > Subject: Re: [Elecraft] 80 meters > > I forgot to say that the rig is a factory built K3s > Mal > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Mal Speer > Sent: Saturday, December 30, 2017 9:52 PM > To: [email protected] > Subject: [Elecraft] 80 meters > > I seem to have low output on 75 phone. The most power I can put out is 71 > watts. I can turn the power knob to 100 watts, but it backs down to 71 > immediately. This is into an antenna and a dummy load. > > I just checked 160 same thing except I get 83 watts > > All other bands seem OK > > Mal WA2TWA > > > > > > ______________________________________________________________ > 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] > ______________________________________________________________ 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]
