[Skimmertalk] Red Pitaya using separate antenna inputs

[Jeff Blaine]

Many thanks Bob.

That modification to the .SH file did the trick.

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com


On 2/8/2023 10:52 PM, Bob Wilson, N6TV wrote:
> Jeff,
>
> You have to edit the start.sh on the RP to indicate the antenna port 
> needed for each slice.  The slice frequency is defined in sequence by 
> SkimSrv, not the RP.
>
> Use PuTTY <https://putty.org>to open an SSH connection to the RP's IP 
> address.  You can try using a hostname like RP-F050EB.local or 
> SDR-F07CDA.local instead of the numeric IP address if you don't have 
> it handy.  Hostnames can be displayed by your Router.
>
> Once connected to the Linux command prompt, enter these commands.  
> Note that press [tab] will auto-complete partial file and directory names:
>
> cd apps/sdr_receiver_hpsdr_122_88
> rw (makes file system writeable)
> nano start.sh (opens full screen editor, so you can make changes)
>
> Locate the last two lines in the file.  Do not change anything but the 
> numbers at the end.  The numbers indicate the port number of each 
> slice for both receivers, in order.  By default, all slices assigned 
> to Port 1 in both receivers:
>
> $apps_dir/sdr_receiver_hpsdr_122_88/sdr-receiver-hpsdr eth0 1 1 1 1 1 
> 1 1 1 &
> $apps_dir/sdr_receiver_hpsdr_122_88/sdr-receiver-hpsdr mvl0 1 1 1 1 1 
> 1 1 1 &
> *
> *
> Change the "1" to a "2" for any receiver slices that you want assigned 
> to antenna port 2.  Each receiver has a maximum of 8 slices (you may 
> not be using all of them). You may mix and match 1 and 2 on both lines.
>
> Press Ctrl-X to exit, then Y to save your changes and finally press 
> [Enter] to use the same file name (start.sh).
> *
> *
> cp -p start.sh /media/mmcblk0p1/  (copies the updated start.sh file to 
> the root folder so that a power cycle of the RP will use the new 
> antenna assignments).
>
> ro (makes file system read only)
>
> Terminate all instances of SkimSrv running on the Windows PC 
> (otherwise they will crash).
>
> Back to the RP:
>
> ./stop.sh (stops the current SDR program)
> ./start.sh (restarts the new SDR program)
>
> Restart SkimSrv
>
> exit (closes the SSH connection)
>
> No power cycle of the RP is required, but it would be a good way to 
> confirm that the start.sh in the root folder with the new antenna 
> ports is correct.
>
> 73,
> Bob, N6TV
>
>
> On Wed, Feb 8, 2023 at 7:13 PM Jeff Blaine <KeepWalking188 at ac0c.com> 
> wrote:
>
>     73/jeff/ac0c
>     alpha-charlie-zero-charlie
>     www.ac0c.com <http://www.ac0c.com>
>
>
>     My RP 122-16 skims the two receivers off of the single ANT1 input.
>
>     How can I configure it so that each of the two logical receivers
>     is tied
>     to a seperate antenna input?
>
>     Thanks in advance!
>
>
>     _______________________________________________
>     Skimmertalk mailing list
>     Skimmertalk at contesting.com
>     http://lists.contesting.com/mailman/listinfo/skimmertalk
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.contesting.com/pipermail/skimmertalk/attachments/20230208/22f6b3d5/attachment.html>