Lucia, Is your KX3 menu parameter for the ATU MD set to "AUTO" If not, the results may be as you have experienced.
73, Don W3FPR On 9/18/2012 10:36 PM, luca de marinis wrote: > Hi Don, I read the 1.4 SWR on my MFJ 259b then tuned with the KX3 atu to 1.0 > > On transmitting the swr graph showed peaks near to 2 and if I press the XMIT > (tune) the reading is about 1.4 same as without ATU. > > Luca > > > > > On Sep 18, 2012, at 7:12 PM, Don Wilhelm <[email protected]> wrote: > >> Lucia, >> >> You say that you had an SWR of 1.4, then used the ATU which lowered the >> SWR to 1.0 >> OK, That was on the KX3 display. >> >> Please tell us where you were reading the continued 1.4 SWR. The KX3 >> display does not show the SWR during transmit - only during a TUNE. >> The SWR shown externally to the KX2 ATU will not change, so if you are >> using an external device, you will not see any change in the SWR reading. >> >> The KX3 ATU will reduce the SWR between the KX3 output PA and the input >> to the KXATU3 to the value shown during on the KX3 display during a >> TUNE, but the SWR between the KXATU3 and the antenna (as measured by an >> external device) will not change. >> >> 73, >> Don W3FPR >> >> On 9/18/2012 8:14 PM, luca de marinis wrote: >>> Hi, >>> >>> I completed my KX3 #1715 few days ago and today I went to the park and >>> using a Buddipole I tried to make some contacts. Buddipole swr was 1.4 on >>> 20m so I used the ATU. It worked fine lowered the swr to 1.0 but then I >>> transmitted I still could read a 1.4 swr. I moved up and down the band and >>> tuned again and every time the ATU started from 9.9 and did the all cycle. >>> Sometime couldn't go lower than 1.4. Sometimes after tuning the power was >>> reduced to 2W >>> >>> Am I missing something. I did a search on the reflector but didn't show >>> anything. >>> >>> Thank you in advance for your help >>> >>> >> ______________________________________________________________ >> 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 > ______________________________________________________________ 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
