[amsat-bb] UHF Reference frequency for setting ppm offset in SDR.

[Mark Jessop]

.. and for those in countries where GSM has finally gone away, you can use
LTE signals:
https://gist.github.com/darksidelemm/b517e6a9b821c50c170f1b9b7d65b824

73
Mark VK5QI

On Sun, Feb 9, 2020 at 4:32 AM Koos van den Hout via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> On 2/8/20 5:14 PM, Roy Dean via AMSAT-BB wrote:
> > I did a google search on how I could better calibrate my el-cheapo SDR to
> > receive HuskySat-1 (I use NOAA weather stations to calibrate roughly to
> > VHF), and I found this article by WA1CYB:
> >
> >
> https://www.amsat.org/wordpress/wp-content/uploads/2018/02/2017Symposium-SDR-Freq-Calibration.pdf
> >
> > Sure enough, Channel 17 had a strong pilot tone at 488.309441 for me to
> use
> > as a half-way decent reference!    Hoping this can help others in the
> > future.
>
> For those in other parts of the world with GSM networks kalibrate-rtl
> can be an option to get to the same result.
> Source https://github.com/steve-m/kalibrate-rtl
>
> My experiences at https://idefix.net/~koos/newsitem.cgi/1493498616
>
> Koos PE4KH
>
> --
> Koos van den Hout
>                                 Visit the site about books with reviews
> https://idefix.net/                    https://www.virtualbookcase.com/
>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
>