[RFI] Array Solutions Filtermax III not making any difference on radio 2. What to check?

[Andy KU7T <ku7t@ku7t.org>]

Hi,

We go the mentioned filter at our contest station. We got S6+ Interference from 
the run to the multi station. If we switch the bandpass on the run from the 
band to bypass, the noise level does not change at all. The relays in the box 
switch and the band pass is working ( meaning switching to the wrong band 
quiets the receiver).

Is it possible the filter is working but not make any difference? Does that 
mean we just get RF from somewhere else and need to find it?  Any tips how?

Thanks
Andy
KU7T

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