Mike: Thanks for your e-mail. Something new learned that was old. I built my K1 in 2003, my only HF rig at present, I never knew this. This is what makes this reflector so useful.
73, Ty, W1TF, K1 #1423 --- Mike Morrow <[EMAIL PROTECTED]> wrote: > This topic will be old stuff for most K1 users, but > it was > new to me. I've had a K1 with KAT1 for 7 years. > After all > that time, it was only last week that I found that > the firmware > controlling the KAT1 (version 1.3) is more versatile > than I > realized. > > The KAT1 manual describes the use of the Auto-Tune > function > (KAT1 ATU mode set to "tun") as follows: > > Quote > ⢠Enter TUNE mode. Power will be reduced to about > 1.5 watts and > displayed briefly, then SWR will be displayed > while the ATU > matches the transmitter to the load (usually 1-5 > seconds)... > ⢠When you no longer hear any relays switching, > tune-up has > completed, and the final SWR is displayed. At this > point you > can optionally tap WPM+ or WPM- to change the > selected power > level... > Unquote > > But what actually happens if WPM+ or WPM- is tapped > after ATU > relay operation stops (and SWR is still displayed) > is better: > > 1. Output power changes from the low level used for > auto tune-up > to the power level that the K1 has been set to > put out. > 2. The LCD displays the actual power output, and > NOT the power > selected, as implied by the manual. (Actual > power output may > be lower than the power that was selected if, > for example, the > K1 supply voltage is low, or filter board > alignment is > slightly off.) > 3. As WPM+ or WPM- is pressed, the display of > actual power output > changes as the selected power level changes. > > The way that this works (as opposed to the way it is > described) is > very useful and well-designed. I should have > discovered this years > ago. > > Mike / KK5F > (K1 SN 175 ... Still my favorite QRP rig) > _______________________________________________ > ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com