On 7/3/2018 6:24 AM, Bob McGraw K4TAX wrote:
In running my KPA500 on FT-8 mode at about 400 watts output, what is the recommended setting for Fan CTL? I usually keep it in NORmal but have tried other settings.
Nearly all of my FT8 operation is on 6M, where the KPA500 is least efficient, and where my antenna looks like about 1.5:1 in the shack. I'm running meteor scatter and weak signal work, which means I'm transmitting on almost every cycle. To keep TEMP relatively low, I set the fan to either max speed or one step down. Into a different antenna on FD, the same amp ran significantly cooler. Using an LP100A power meter, I get at least 500W out on 6M, sometimes as much as 550W.
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]
