Chuck, I am late to this discussion so I might be saying things that already been said. I found the same issue. Voltage down to 11.5 volts on any ps I used. So, I found the issue was power pole connectors that were to light. Look for power pole connectors that handle 30 amps or so. Power poles come in different amperage with the same shell. Don't get fooled with that. I did.
Then I limited the cable to 24 inches. #10 wire and higher current power poles. Voltage dropped fro. 13.8 to 13.1 at 100 watts . Somebody said that DC systems act significantly to resistance. Lower the resistance to the smallest number is what I tried to do. Some ps have funky connectors o. The back, and might have to jigger those to bolts and nuts. I opted to use sleeves crimped on the end of the wire, soldered, and then stuffed in the connector. The set screws were replace with machine bolts and tighten but you cannot over tighten because the threads might strip. Lee K0WA On Sat, Apr 25, 2020, 7:14 AM Chuck Chandler <chandler...@gmail.com> wrote: > After more checking, I suspect the internal 100W amp is the common factor > in the poor keying characteristics I'm seeing and hearing about from my > rig. I am trying to determine if my power supply is doing it's job. > > I'm using a TenTec 963 switching supply rated at 25A continuous. At rest > the K3S panel display shows 13.6V, with full power key down it dips to 11.5 > or so. This seems like a lot. I'm running the power cable thru a > RigRunner Powerpole strip. If I can dig out another power supply from the > packed boxes I can wire the K3S directly to the supply. > > Is 11.5V at key down enough to cause the slow rise time being reported? > > 73 de Chuck, WS1L > > -- > > > =================== > Chuck Chandler > chandler...@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 lee.bul...@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
