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

[Adrian Chadd]

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 :)



-adrian
(kk6vqk)

On Tue, 29 Dec 2020 at 16:10, Andreas Hornig
<andreas.hornig at aerospaceresearch.net> wrote:
>
> Hi adrian,
>
> nice to read you.
>
>>
>>
>> On Wed, Dec 30, 2020 at 12:36 AM Adrian Chadd <adrian.chadd at gmail.com> wrote:
>>>
>>> Hi!
>>>
>>> Those are all FM stations, so there's 24/7 people saying stuff on it.
>>>
>>> So if you want to calibrate against them, you "just" need to find the
>>> carrier frequency, which is easiest when they're not talking. :-)
>>
>>
>
> yes, a record of both would be cool to get. I want to try to apply an algo to find the center frequency. that is your "just" part. I need to have a sample to try.
> best case szenario would be to have several of these stations within the 2MHz tuned window of that recording.
>
> I don't know how much they usually talk and how much is silence. But one recording with several changes would be useful.
>
> best regards,
>
> Andreas
> (dh0rn)
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