[Skimmertalk] 8 bands on Red Pitaya

[dd5xx at web.de]

Hello Björn,

I guess you are describing what I also experienced and still experiencing:

in SkimSrv UI sometimes it's not possible to add the 8th band. I am not sure if this is a known bug or similar but by accident I found how to solve it. You need first to uncheck any other band (so you have 6 bands in summary) and then click the APPLY button. Then try again to add two additional bands so you have 8 bands in total and finally press the APPLY button again. I don't know why this happens, but it works all the time for me on two different computers where I have this issue. This little workaround works fine for me, maybe you can try also.

Good luck and 73
Saki, DD5XX
 
 

Gesendet: Mittwoch, 28. November 2018 um 07:22 Uhr
Von: "Björn Ekelund" <bjorn at ekelund.nu>
An: skimmertalk at contesting.com
Betreff: Re: [Skimmertalk] 8 bands on Red Pitaya
Thanks all for the responses,

I was able to to find an old post on this reflector by Bob N6TV hinting
about modifying CW Skimmer Server's ini file and by using RTTY Skimmer
Server's
manual (there seem to be none for CW Skimmer Server) I was able to
understand its syntax. (It seems CW Skimmer Server's UI simply prevent you
from
checking more than 7 boxes.) In the ini file I also found the list of
center frequencies, I assume this is what I have to modify to cover 60m.

My skimmer now cover all eight bands 80-10m. I might get a second RP to
cover also 160, 60m and 6m.

Thanks all,

Björn SM7IUN

Den ons 28 nov. 2018 kl 03:56 skrev Bob Wilson, N6TV <n6tv at arrl.net>:

> Are you using CW Skimmer Server v1.6?
>
> One possible cause is that you're not seeing the full list of available
> segments in CW Skimmer Server UI, which must be scrolled with the scroll
> bar on the right side of the *Skimmer* tab to see all the check marks.
>
> Another possibility, are you starting 8 receiver slices in the Red Pitaya
> itself?
>
> If you log in to the Red Pitaya and enter the following Linux command:
>
> ps aux | grep -i sdr
>
> You should see a long line ending with 8 numbers, like this:
>
> .../sdr-receiver-hpsdr 1 1 1 1 1 1 1 1
>
> There are eight 1s in this example (8 receiver slices all listening on
> antenna port 1). If you see only 7 numbers listed, you will not be able to
> define more the 7 segments in CW Skimmer Server. To fix it, you must edit
> the following file using the following commands on the Red Pitaya:
>
> *cd /opt/redpitaya/www/apps/sdr_receiver_hpsdr*
> *rw* (makes file system writeable)
> *nano start.sh* (opens full screen editor, so make your changes)
> *ro* (makes file system read only)
> *./stop.sh* (stops the current SDR program)
> *./start.sh* (restarts the new SDR program)
>
> 73,
> Bob, N6TV
>
> On Tue, Nov 27, 2018 at 3:59 PM Wes Cosand <wes.cosand at gmail.com> wrote:
>
>> Hi Björn:
>>
>> Yes, I'm using it on 60 meters without any issues of which I am aware. At
>> the moment I'm covering 60 meters with two 45 khz bands for weird and
>> probably stupid reasons having to do with my coverage of 630 meters. But
>> it seems just a matter of building the right band segments in the skimmer
>> server ini file. (I usually use 192 khz for the RP.)
>>
>> I don't know if I've ever tried to cover 8 bands or not. Again, I would
>> expect it to be merely a matter of the skimserver ini file.
>>
>> Wes WZ7I
>>
>>
>>
>> On Tue, Nov 27, 2018 at 6:26 PM Björn Ekelund <bjorn at ekelund.nu> wrote:
>>
>> > I see 8 bands at 192kHz advertised for the Red Pitaya 125-14. I can't
>> seem
>> > to get more than 7 bands on mine, regardless of bandwidth.
>> > I'm using the latest version of Pavel Demin's software (From May 23'rd
>> this
>> > year).
>> > Is there a setting or an ini file or something else I've missed?
>> >
>> > Also, have anyone successfully made it cover 60m?
>> >
>> > Thanks in advance,
>> >
>> > Björn SM7IUN
>>
>
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