[Lowfer] WE2XGR/2 WOLF mid day groundwave test - DIAL SETTINGS

Douglas D. Williams kb4oer at gmail.com
Sun Feb 5 13:50:18 EST 2012


Thanks Andy. Will do. That's very similar to the calibration I use for Argo.

D. KB4OER

On Sun, Feb 5, 2012 at 6:34 PM, Andy - KU4XR <ku4xr at yahoo.com> wrote:

> Doug:
>
> A simple calibration trick that works reasonably well for me: I tune WWVB
> at 60 KHz in CW mode...
> With WOLF running, and using whichever " Tuning Scope " you prefer; in
> your case look for the
> " Peak Frequency " of the WWVB carrier... it may show 700.308  , or
> 699.732  , Go into the
> WOLF Config menu, and in the receive section; hit the " CAL " button... It
> will ask you it 700 Hz is
> the correct center frequency, Click " OK " , another window opens telling
> you what WOLF measured,
> Click : OK : again, and a third window opens giving you the sample rate,
> asking you if this sounds reasonable.
> Click " OK " again... You will now return to the main window, and "
> Re-Start " WOLF... check to see that
> the WWVB Carrier is within a few " milli-Hertz " of 700.... You can repeat
> the process to see if you can
> get it almost dead on... This may not work to perfection, but it works
> well enough that I do get decodes..
>
> Andy - KU4XR - EM75xr - Friendsville, TN. USA
> Coordinates: N: 35º 43' 54" - W: 84º 3' 16"
>
>
> ________________________________
>
> Thanks Andy. Seems simple enough. I use a 700Hz offset for CW, so I
> changed it to that in the Wolf GUI.
>
> Configuring the frequency error of the soundcard seems problematic now
> that Loran is defunct.
>
> D. KB4OER
>
>
> On Sun, Feb 5, 2012 at 6:14 PM, Andy - KU4XR <ku4xr at yahoo.com> wrote:
>
> Doug:
> >
> >The transmitted BW is 10 Hz... WOLF has a " Pre-Filter that is 20 Hz wide
> if you want to use it...
> >The signal is transmitted in USB... I find the CW mode the easiest to
> use, since my Kenwood uses
> >USB for CW receive... just " set it, and forget it " that is once the
> sampling rate of the sound card
> >is set...When an operator transmits WOLF; they will usually give you the
> " center frequency of the signal "
> >In CW mode I have an offset of 550 Hz, so I set my dial to 506.50 KHz,
> and in the WOLF Config menu;
> >I set the receive center frequency to 550 Hz, and I'm up and running...
> >
> >Hope this is useful... Any questions, feel free to call, or email me...
> >
> >73 for now :
> >
> >Andy - KU4XR - EM75xr - Friendsville, TN. USA
> >Coordinates: N: 35º 43' 54" - W: 84º 3' 16"
> >
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