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

[Andy - KU4XR]

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"
>