Yes I have that combination, KPA500 / KAT500. Over the years I've learned that a VSWR of 1.5:1 or less means little to nothing. Oh it's "comforting" to operate all the time with a 1.1:1 SWR but just accurate is that indication? And the fact the two devices show different values lends credence to " just how accurate is that indication". Plus many diode detection methods are least accurate at lower levels.
Conclusion: find something more interesting to worry about. Bob, K4TAX Sent from my iPhone > On Apr 6, 2019, at 1:01 PM, wmbrian <[email protected]> wrote: > > I recently added the KAT500 and KPA500 to my K3 station. > > I have noticed that when the SWR (after tuning) as displayed on the KPA500 > is 1.0/1 (or occasionally 1.1/1) no SWR LED lights up on the KAT500. (The > green 1.0/1 SWR LED on the KPA500 does light up.) > > I have assumed that the 1.2/1 KAT500 SWR LED does not light up is because 1) > the KAT500 threshold for the first SWR LED is 1.2/1 and 2) because no > tuning action has taken place in these circumstances (due to memorized > KAT500 tuning configuration). However, I noticed at the bottom of page 49 > of Fred Cady's book on the KAT500 and the KPA500 it says "VSWR is displayed > even when the tuner is bypasssed". So, I'm confused. Does no SWR LED light > when the SWR is 1.0/1 (or very close to it) because the SWR is below 1.2/1? > > Thanks, > > Brian, K8GRR > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > 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 > ______________________________________________________________ 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
