Slight correciton. The ATU will remember ATU settings by ANT, band, and band segment. This allows you to get a very close tune up through the entire band (available on all bands except 2m - K144XV), at least for segments you've run ATU TUNE within.
Segment size in the lower bands is smaller in KHz than in the upper bands. Rev D9 of the owner's manual doesn't really document this feature. Maybe it should... This is an excerpt from MCU 3.03 release notes, re the band segments for the ATU: MULTIPLE KAT3 ATU DATA SEGMENTS PER BAND/PER-ANT.: 10 kHz per segment on 160 m; 20 kHz on 80-12 m; 50 kHz on 10 m; 200 kHz on 6 m. This keeps narrowband antennas in tune across the full ham band. Note 1: You do not have to go through each band and do ATU TUNE on every segment. The K3 will use the saved LC data segment closest to your present VFO location. Note 2: You can erase all of the stored LC data for a given band by tapping CLR in the CONFIG:KAT3 menu entry. 73, matt W6NIA On Tue, 24 May 2011 01:18:06 -0400, you wrote: > Bill, > >That is how it is supposed to work. The "Auto" part of the tuner >function is that it remembers the tuning for 2 antennas for any band. >To get it to remember that information, one must do a TUNE on each >antenna and on each band - after that, it is only necessary to change to >the band and the antenna, and the tuner will change accordingly. > >The "automatic" tuner does not follow wherever you tune the VFO - you do >have to tell it which frequencies you wish it to tune to. > >There are several variations on the meaning of "automatic". > >73, >Don W3FPR > >On 5/23/2011 10:23 PM, Bill Swindell - K1LED wrote: >> I have a K3/100 with the internal antenna tuner. The config is set to AUTO >> but it seems that I still have to press the ATU tune button to get the ATU >> to properly tune when I change bands. Is it supposed to be automatic or not? >> >> >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
