[WriteLog] Bandmaps, softrock lite 2, and K3

[Joe Subich, W4TV]

> I needed to set an offset in WL to align the desired signal on the
> bandmap display. This offset seems to be about 23KHz but not quite
> exactly that. What should I be using as an offset?

The offset will depend on the exact frequency of the crystal in your
SoftRock.  The easiest way to determine the offset is to adjust it
to position the trace using a signal of a *known* frequency.  Be sure
to adjust the offset in the mode you want to use most and after you
press "NORM" on the K3 to remove any shift/width as the K3 IF will
be slightly different depending on mode and shift (WriteLog does not,
as far as I know) account for IF shift (the IS; command).

> I am running this at 48KHz. I have a Xonar sounds card that is
> supposed to do 96KHz but when I select that in the SDR Setup it has
> no effect - the display is still 48KHz. If I want 96KHz how do I get
> it?

You will probably need to set the sample rate of the sound card in
Windows Sound Control Panel -> Recording Devices -> Line (Xonar) ->
Advanced -> Default Format (assuming that WriteLog uses the default
format and does not set its own sample rate).

73,

   ... Joe, W4TV


On 8/1/2016 5:06 PM, Jeff Stai wrote:
> Amazingly enough, I recently successfully constructed a Softrock and I have
> it working with Writelog 12 on my K3. The Softrock has the K3 IF crystal
> option for 8215KHz IF. I have a simple coax splitter from the K3 to both
> the P3 and the Softrock so I can compare spectrum and see that they match.
> But I have questions...
>
> The waterfall/spectrum on WL12 is skewed to one side of the current VFO
> position. In other words, if I am tuning in a RTTY signal, nearly all of
> the WL12 spectrum/waterfall is to the right of the signal, as opposed to
> the P3 where it is centered. Is this the nature of the beast or is there
> something I can do to center it?
>
> I needed to set an offset in WL to align the desired signal on the bandmap
> display. This offset seems to be about 23KHz but not quite exactly that.
> What should I be using as an offset?
>
> I am running this at 48KHz. I have a Xonar sounds card that is supposed to
> do 96KHz but when I select that in the SDR Setup it has no effect - the
> display is still 48KHz. If I want 96KHz how do I get it?
>
> Thanks and 73 jeff wk6i
>
>