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Re: Intruder on 438.125 MHz


 

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Greg,
Nice work tracking down the signal as much as you did. ?Thank you. I see you are already in touch with our club president Mark Ehr, K0EHR. ? Have you also contacted other clubs, like the Parker Radio Association?
73,
Mark Edwards-W0QL
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One thing is certain: ?The future is uncertain.



On Feb 7, 2025, at 2:18?PM, Greg Ella | N0EMP via groups.io <gregella53@...> wrote:

?
I think it is either FM or Phase Shift Keyed.

Greg

On Fri, Feb 7, 2025 at 1:39?PM Mark Ehr | K0EHR via <mark=[email protected]> wrote:
Hey Greg, I tuned my SDRPlay to the signal and have engaged a buddy of mine who is an expert in signal processing to see if he can help us decode the signal. He¡¯s in FL so I¡¯ll need to send him an audio file. Do you know if this signal is FM modulated or using something else?
?
73,
?
mark?
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Mark Ehr | K0EHR

President, 285 Tech Connect Radio Club
Littleton, Colorado

k0ehr@...
Check out my ham radio blog:

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