[Noisebridge-discuss] Using the National Weather Radio to calibrate SDR-dongles?

[Andreas Hornig]

Hi all,

and happy new year! I hope you all transitioned nicely into the new year
2021! :)

We did, and I used the day-off on my couch and started coding the first
really rough version of the NWR functions.
I am currently stuck with how one can set the received signal to one of the
7 available station frequencies. Due to the possibility of a high
frequency drift, the signal can seem to have moved into the allocated
frequency of the other station. And when only one signal is active or can
be received, there will remain an ambiguity to what the result really is.

so, if you people here have the chance to record me a section when all 7
stations are active, that would be cool.
And also if you want to tell, please feel free to add what callsign/station
you were able to hear. That helps me understand how the signal(s) shifted.


On Wed, Dec 30, 2020 at 1:20 AM Adrian Chadd <adrian.chadd at gmail.com> wrote:

> hi!
>
> Sure, let me get a sample of them in the bay area on my RTL-SDR for you.
>
> Bug me in 2021 if you don't hear from me by the end of the week :)
>
>
poked (i did not want to write bugged ;)).

best regards,


Andreas

[0] https://github.com/aerospaceresearch/CalibrateSDR/tree/signal-noaa/nwr
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