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Mobile from a Subaru XV Jun 8th 2015, 18:05 1 639 on 8/6/15
T8 Lamps Sep 20th 2011, 14:56 6 6,649 on 17/6/14
Part 15 and Plasma Televisions Sep 14th 2011, 15:13 2 2,134 on 14/9/11
Common-Mode Interference from Cable System Sep 13th 2011, 15:13 3 2,739 on 25/8/13
RFI from HVAC Systems Sep 1st 2011, 19:08 3 2,472 on 28/1/16
RFI from Plasma TV Sep 1st 2011, 17:20 3 6,422 on 13/9/11
Alignment of Vintage Shortwave Receiver - Pilot T-511 Aug 3rd 2011, 13:43 7 4,178 on 5/2/13

Latest Posts

Topic Author Posted On
RFI and Residential Marijuana Grow Operations AC0XU on 4/8/16
I will try to help. Please contact me directly by email at

Mike Gruber, W1MG
HF RF Tripping Arc Fault Circuit Interrupters (AFCI's) W4TL on 4/8/16
Here is an update on this situation as of today for 2016. We have received a total of five AFCI complaints here at the ARRL since January.

Here is a brief run down on each:

1) Ham was referred to Eaton in February. No further issues were reported.
2) Ham was referred to Eaton in February. No further issues were reported.
3) Complaint involved a non-Eaton breaker. I believe the ham added chokes to mitigate the problem.
4) Ham was referred to Eaton in April. No further issues were reported.
5) Ham was referred to Eaton in June. No further issues were reported.

In summary, each of the four Eaton breaker complaints that we received this year were referred to Eaton for free replacements. After that referral, none of them has reported any further issues. Please also be assured that we are still monitoring the situation.

Mike, W1MG

ATT U-verse TV system KF0IQ on 22/4/16
U-Verse customers probably number in the millions by now. Statistically speaking, we've had a surprisingly small number of complaints given from them. Offhand I don't recall any in the last few months and most of the older complaints were resolved.
HF RF Tripping Arc Fault Circuit Interrupters (AFCI's) W4TL on 17/3/16
Assuming that you are operating at HF, ferrite beads are unlikely to fix the problem. I might suggest using ferrite toroids on the speaker leads, especially if this problem can occur even when the stereo is not on. Install the cores as close to the amplifier as practical. A good mix might be type 31 ferrite, but if you can't get it, try type 43. I'd start by wrapping about ten turns or so around the toroid to see what happens. You may also need to add similar chokes and an ac line filter to the power cord of the stereo. I would not think that this problem is directly related to the tripping AFCIs.
HF RF Tripping Arc Fault Circuit Interrupters (AFCI's) W4TL on 4/3/16
I have heard that Eaton recently came out with a newer version AFCI. Perhaps you don't have the latest version? I think it came out only a few months ago.

With regard to your antenna, I note that you say it is a vertical with no radials. This could suggest that your safety ground system is acting as an RF ground. I could see where excessive RF current flowing in the safety ground system might contribute to tripping AFCI's.

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