Bryan,
If the SSB filters have the low frequency corner of the passband set
properly, you will not have to re-tune the VFO.
You will need the internal counter probe to do filter re-alignment. It
may be installed inside your K2, but Elecraft does not recommend that
because there is a greater possibility of transmitted spurious signals
when the KPA100 is also installed. Elecraft does have a kit for the
counter probe available.
The easiest way to align the filters is to use the Spectrogram
application running on a Windows computer (if you are a Linux user, that
are alternatives). Please review the K2 Dial Calibration article on my
website www.w3fpr.com - part 3 of that article describes the filter
adjustment using Spectrogram.
Be aware that in many cases, when the variable crystal filter is used a
wider bandwidths, the actual width may be much wider than indicated by
the K2 display. You can measure the actual width of the filter with
Spectrogram. There is not much sense in changing from a 2.4 kHz width
FL1 to an FL2 that the K2 displays as 2.20 but is in fact 2.8 kHz wide!
73,
Don W3FPR
bryan puckett wrote:
> I have question about the filters when I change from fl2.2 on 14321.15
> an switch to fl 1.60 to tune the voice I have to change vfo to
> 14320.30. I traded a kenwood ts 2000 straight across for k2/100 with
> all the bells&whisles Is something wrong with the rig ? Also it didn't
> come with any of the probe cables is there anyway to do the fix my
> self it doesn't have any hardware to aline it with do I need any
> speical cables? It didn't come with anything but the owners manual.
>
>
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