Hi Brian, Just an "idiot" question: are you using the K3 ATU?
73, Rudolf HB9ARI Don Wilhelm wrote: > Brian, > > Is the higher reflected power indicated on the K3 or is it the reading > on a meter in the line between the amp and the antenna? > > If it is read on an external meter -- > Is there any possibility that something is arcing over at high power - > check your antenna system for that condition. > > If the indication is on the K3, then the problem is in the input circuit > for the amp (giving a non-50 ohm resistive load to the K3). > > 73, > Don W3FPR > > Brian Machesney wrote: > >> I'm feeding a "double L" antenna on 160m (visualize a vertical dipole with >> the top and bottom legs bent to form something like a capital "C" and fed in >> the middle of the vertical leg). The SWR bridge on the K3 shows 1:1 SWR, but >> when I fire up my Alpha 91B, I see significant reflected power. >> >> I recently saw a post on the topband reflector from another K3 owner whose >> 160m output power is being reduced from 100W to 50W by the K3 even though >> the SWR reads 1:1 on the K3's internal SWR bridge. >> >> Has anyone else seen this or have an explanation for it? >> >> >> > ______________________________________________________________ > 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
