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At 5/12/2025 08:35 AM, you wrote:

I fought a problem similar to yours but slightly different.
The final diagnosis could help you but the solution will be different.
After several weeks of constant pulsing interference I finally took the spectrum analyzer to the site,
disconnected the repeater, and put the spectrum analyzer on the repeater antenna.
The pulse was directly on the input frequency of the repeater.
We watched the tx light on the scada system and it corresponded to the pulse we were receiving.

We had the same thing happen at a site in LA.? I don't remember the manufacturer of the SCADA system but wouldn't be surprised if it was the same.

FWIW this is not "desense" but simply a noise signal being transmitted directly on your input frequency.

Bob NO6B