Arno, your original message caught my eye. Many SWR bridges become very inaccurate at low power settings, so I tried my KX3 into a 2:1 load (25 ohms instead of 50). The SWR did change but only slightly. It was 1.1:1 at 0.9 watts and 1.2: 1 at 5 watts.
That isn't enough to care about. Indeed, anything less than 2:1 isn't going to produce a significant difference. 73 Ron AC7AC -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Arno Dienhart Sent: Thursday, December 12, 2013 7:29 PM To: [email protected] Subject: Re: [Elecraft] TUNE power, low vs high Thank you, Don and Jack, that makes sense. To explain a bit more, I only operate portable, so my antenna situation is practically never the same and I need to tune anew. For my wire antennas I use the ATU. If I use the magloop, I bypass the ATU and use the TUNE function. That is where I reduced power to .8W. After reading your posts, next time I will tune again with .8W and then increase tuning power to 3 and compare the SWR. If I did that for enough different bands and frequencies, with no discernable difference, I guess I would be safe to keep it at low power from then on, right? 73 de Arno K7RNO ______________________________________________________________ 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
