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References: [ +from:aa0cy@nwrain.com: 3 ]

Total 3 documents matching your query.

1. [RFI] Phone RFI fixes - no ring, lower cost solutions? (score: 1)
Author: Bob Wanderer <aa0cy@nwrain.com> (Bob Wanderer)
Date: Wed, 22 Dec 1999 09:28:38 -0800
A high pass filter will do nothing to an ingressed signal such as 2 metres on cable channel 18 because they are on the same frequency. I am of course assuming that you're talking about your 144 MHz s
/archives//html/RFI/1999-12/msg00039.html (10,644 bytes)

2. [RFI] Phone RFI fixes - no ring, lower cost solutions? (score: 1)
Author: Bob Wanderer <aa0cy@nwrain.com> (Bob Wanderer)
Date: Thu, 23 Dec 1999 10:08:48 -0800
I would add, put a 300-Ohm high pass filter between the two 75/300 Ohm transformers. Most TV's, especially those manufactured prior to 1982, have no shielding against direct pick-up (which would also
/archives//html/RFI/1999-12/msg00041.html (13,129 bytes)

3. [RFI] Spurious signal levels (score: 1)
Author: Bob Wanderer <aa0cy@nwrain.com> (Bob Wanderer)
Date: Wed, 20 May 1998 20:34:40 -0700
When I had a spurious problem on 14 MHz back in the late 70's, I called the FCC (Laurel, Md. Lab) to find out whether the measurement was into a dummy load or into the antenna itself (as the levels w
/archives//html/RFI/1998-05/msg00026.html (17,853 bytes)


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