It looks like the difference between this process and "send CW while
in SSB" which was added a while ago, is that with this you switch to
the CW filters. Is that right?
Peter N8MHD
On 6/11/09, Bill W5WVO <[email protected]> wrote:
> A number of VHF ops on the list (myself included) have been lobbying for some
> time for a feature that is standard on most or all HF+VHF Ikensu rigs: the
> ability to have the VFO automatically offset by the amount of the BFO pitch
> when switching between SSB and CW. This capability is typically of little
> interest to HF operators, where SSB and CW are rigidly separated into two
> distinct sub-bands. On VHF and UHF, SSB and CW are used interchangeably, as
> needed, on the same (SSB) frequencies.
>
> I've already had extensive discussions with Wayne about this; the problem is,
> due to the software design architecture of the K3, it's not as easy to
> implement as it sounds like it should be.
>
> The performance objective for switching from SSB to CW (CW to SSB is simply
> the reverse) is for ONE button tap to accomplish:
>
> (a) shifting the VFO frequency up (or down) 700 Hz (nominal pitch)
> (b) switching the K3 from USB to CW REV (or from LSB to CW)
> (c) bringing into play a pre-configured set of CW characteristics that go
> with the transmission mode
>
> The workaround I've come up with accomplishes this, at the expense of having
> a free VFO B to play with. On VHF/UHF, however, there is virtually no split
> operation (except satellites), so this isn't as big a deal as it sounds like.
>
> Here's how to do it, assuming USB and a pitch offset of 700 Hz (substitute
> your own pitch setting if not 700):
>
> (1) Set MODE to USB, and set up all desired RX characteristics for this mode
> in the normal fashion.
>
> (2) Set display resolution to FINE so it displays Hz (three decimal places).
>
> (3) Tap A/B button, and repeat Step 2.
>
> (4) Now set each VFO in turn (select using the A/B button) such that one is
> zeroed out (xx.xxx.000), and the other displays xx.xxx.700.
>
> (5) Hold SUB and notice that the display says LINK. The two VFOs are now
> locked together and will track 700 Hz apart.
>
> (6) Use the A/B button to select the VFO with the +700 Hz offset. This will
> be your CW VFO.
>
> (7) Set MODE to CW REV, which will give you the same tuning direction as USB.
>
> (8) Set up all desired RX characteristics for this mode in the normal fashion.
>
> This completes the setup. From now on, a tap of the A/B button will switch
> from USB to CW REV or from CW REV to USB, and the VFO will automatically be
> set to the correct frequency, removing the requirement of retuning to acquire
> the signal.
>
> RIT can still be used in the normal manner, but the offset will be carried on
> RX when switching from one VFO to the other. Depending on what you're trying
> to do, this may or may not be a good thing. Just be mindful of the behavior.
>
> Please critique these instructions if you find anything unclear.
>
> Bill W5WVO
> ______________________________________________________________
> 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
