Is the power supply at 14 volts or so? And what does the radio show the voltage to be in key down transmit into a dummy load. Low voltage will demand more current to produce 100 watts.
I run my supply at 14.25 V no load and the radio shows 13.8V during 100 watts transmit. Voltage drop should be 0.5 volts or less. Bob, K4TAX Sent from my iPhone > On Jan 11, 2020, at 10:31 AM, Bill Coleman <[email protected]> wrote: > > Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime > after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set > the power level to more than about 80-85 watts. The K3 will back off on the > power level, then slowly ramp back up until it hits HI CUR again. > > I don’t remember seeing this before. After the KSYNC3A install, I ran the > transmit gain calibration at both 5 and 50 watts, as specified in the > instructions. Just in case something went awry, I ran it again. > > I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought > to be able to produce over 110 watts on 12m. > > I’m not seeing this issue on other bands. > > No issues with calibration > Bill Coleman, AA4LR, PP-ASEL Mail: [email protected] > Web: http://boringhamradiopart.blogspot.com > Quote: "Not within a thousand years will man ever fly!" > -- Wilbur Wright, 1901 > > ______________________________________________________________ > 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]
