[Skimmertalk] Adapting Skimmer Server for other frequency segments

Wes Cosand wes.cosand at gmail.com
Sun Jan 14 14:09:18 EST 2018


On Sun, Jan 14, 2018 at 1:42 PM, John Ackermann N8UR <jra at febo.com> wrote:

> To have Skimmer Server tune the radio to other segments than the default
> bands, is it necessary to do more than add the frequencies to the
> "CenterFreqs192" (or whichever) and "CWSegments" lines of the .ini file?
> Is there a limit to the number of segments that can be included (i.e.,
> should I replace existing segments rather than appending new ones)?
>
> I'm asking because I'm testing the "rtl_hpsdr" shim software and want to
> add 2M, 432, etc. segments for the dongles to monitor.
>
> Hi John:

I am following your experiments with interest.

So you need to make a several changes in the "ini" file to add frequencies.

1)  Yes, you need to add the center frequencies.  Here is an example of the
line from one of my machines operating with a 48 khz bandwidth

CenterFreqs48=130000,470000,1822000,1866000,3522750,3568250,5354000,5399000,
7022750,10120750,10163000,14022750,14068250,18090750,
21022750,21068250,24912750,28022750,28068250,50022750,
50068250,50113750,50159250

2)  Then you have to add the segment to the following line:

CwSegments=135700-137800,472000-479000,1800000-2000000,
3500000-3600000,5330000-5407000,7000000-7125000,10100000-10150000,14000000-
14150000,18068000-18110000,21000000-21200000,24890000-
24930000,28000000-28300000,50000000-50135000

3)  Then you have to decide which of the segments to turn on.  I am running
this on the Red Pitaya so I can have 8 of these segments on at one time
although on this machine I only have 6 turned on at the moment.

SegmentSel48=11000011011000000000000

Email me directly if this is not clear.

Wes WZ7I
-- 
Wes Cosand
6299 Route 413
PO Box 349
Pipersville, PA 18947


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