[Elecraft] K2 Alignment

Tom Hammond NØSS [email protected]
Wed Jan 23 11:08:01 2002


Dan:

>However, the SSB filters came out all wrong about 4 times. I finally 
>noticed that they were reversed. It could be that I'd done it wrong about 
>4 times, but I don't think so. I noticed that the example in the book 
>shows the LSB row above the USB row, and that the LSB row matches (sort 
>of) the CWn row (as the Theory pages suggest). Since my CW settings were 
>fairly far from the example, I adjusted my SSB settings relative to the 
>book settings (I offset from my CW setting the same amount as the 
>example's difference).

For reference:

The BFO settings for CWn AND for LSB (when aligning on ANY band BELOW 15M) 
should be BELOW the center frequency of the filter, and ABOVE the center 
frequency of the filter for CW Rev and for USB.

>It still didn't work. I went back in and the LSB and USB rows were 
>reversed again. I swear I'm not making this up! My guess (I'm not touching 
>it for a while - I only got one QSO last night after 4 hours in the shack 
>- OK2GX), is that the procedure in the book has you do CWn, CWr, LSB and 
>then USB and that the firmware does the SSB backwards if you leave the CWr 
>state set. If so, then we need to add a step to reselect CWn before doing 
>LSB. That's what I think I did. If not, well then I'm REALLY sticking to CW.

Have you tried using the Spectrogram alignment docs?

>Anyhow, LSB sounds great now. USB, well, it was after midnight on the East 
>Coast. I couldn't find any.

Do you have the KSB2 SSB option installed? If so, BE SURE to perform the K2 
2nd Xfil SSB mod!!! Worth every second required to install it!

>  But WWV was understandable (I think AM counts).

Sure does. The K2's out-of-band sensitivity tends to fall off after too 
much 'excursion' from the ham bands, so, while you WILL generally be able 
to copy SW BC stations, you will probably be limited in the sensitivity as 
well.

73 - Tom Hammond   N0SS