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1. [RFI] Mysterious K3 Symptoms - RFI? (score: 1): Author: Pete Smith N4ZR <pete.n4zr@gmail.com>; Date: Wed, 13 Mar 2024 10:20:24 -0400; Operating in this morning's CWT, and saw a recurrence of strange RFI-like symptoms. After transmitting, RX gain sometimes was severely reduced, but simply moving the K-3's AF gain a little would cau; /archives//html/RFI/2024-03/msg00020.html (8,459 bytes)
2. Re: [RFI] Mysterious K3 Symptoms - RFI? (score: 1): Author: Frank W3LPL <donovanf@starpower.net>; Date: Wed, 13 Mar 2024 10:29:22 -0400 (EDT); Do these symptoms occur with a dummy load? Operating in this morning's CWT, and saw a recurrence of strange RFI-like symptoms. After transmitting, RX gain sometimes was severely reduced, but simply; /archives//html/RFI/2024-03/msg00021.html (8,778 bytes)
3. Re: [RFI] Mysterious K3 Symptoms - RFI? (score: 1): Author: Michael Carter via RFI <rfi@contesting.com>; Date: Wed, 13 Mar 2024 14:40:36 +0000; Hi Pete, I've not operated an amplifier at the home QTH, but have had similar experience with my K3 even at 5 watts TX power. The temporary reduction in receive gain, resettable by tweaking the AF ga; /archives//html/RFI/2024-03/msg00022.html (11,126 bytes)
4. Re: [RFI] Mysterious K3 Symptoms - RFI? (score: 1): Author: Pete Smith N4ZR <pete.n4zr@gmail.com>; Date: Wed, 13 Mar 2024 10:57:37 -0400; Interesting suggestion, Mike - I use a recently-bought Samlex metered supply, and its analog voltmeter does not move visibly when transmitting. Also checked the KPA-1500 supply, and maximum voltage; /archives//html/RFI/2024-03/msg00024.html (11,892 bytes)
5. Re: [RFI] Mysterious K3 Symptoms - RFI? (score: 1): Author: Mike Fatchett W0MU <w0mu@w0mu.com>; Date: Wed, 13 Mar 2024 14:58:02 -0600; Did you get the gold pins on your K3? The early non gold pin versions had various odd behaviors. I doubt pins are it only happens with 1000w. You seemed to have ruled out RFI with the dummy load.; /archives//html/RFI/2024-03/msg00025.html (12,911 bytes)
6. Re: [RFI] Mysterious K3 Symptoms - RFI? (score: 1): Author: Dan K2YWE <dan.k2ywe@gmail.com>; Date: Wed, 13 Mar 2024 21:13:55 -0400; I'll agree that radiated susceptibility is probably ruled out but conducted EMI is still a possibility. BTW, have you disconnected the suspect CAT5 cable from the radio and tried the test? Pete, I'm; /archives//html/RFI/2024-03/msg00026.html (15,083 bytes)

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