Topband: Bizzare EMI Story

Lloyd - N9LB lloydberg at
Wed Nov 7 11:04:08 EST 2018

Hello Jay!

Sounds like every conductive element in your home is acting like an antenna.

I'm thinking that you need to look at your station grounding.  

Is your antenna well "earthed" at the feed point and the feedline choked?
Are all your water pipes, gas pipe, duct work, and electrical common/utility ground point, bonded together?
Do you have a Perimeter ground around your house?
Take a look at "Grounding and Bonding for the Radio Amateur".


Lloyd - N9LB

-----Original Message-----
From: Topband [mailto:topband-bounces at] On Behalf Of JAYB1943 at OPTONLINE.NET
Sent: Wednesday, November 07, 2018 9:32 AM
To: topband at
Subject: Re: Topband: Bizzare EMI Story

I’m sure there are LOTS of bizarre 160m RFI stories and I am going to add a few of mine: A few months ago, I added an ALS-600 600w HF amp to the 100w station on 160 and then the fun began. My XYL informed me that the timer alarm on the kitchen stove would trigger with each dot or dash I sent. I agreed to stay off 160 until it was fixed. Ordered and installed 6 ferrite cores on the AC power line to the stove and added .05 capacitors across each AC phase in the breaker box to cure that issue. Once back on the air, the XYL now informed me that the LED light bulbs in the living room would flicker with 160m CW. Changed the bulbs back to standard incandescent to fix that problem. Back on the air when the XYL informed me that the exercise treadmill in the den would start up and run when I was transmitting FT-8 on
160 even though the ac switch was OFF. At this point I am ready to go back to 2m FM but tried unplugging the treadmill which fixed that problem. I am now pumping the audio on her CD player in the kitchen so have to go research
that....73 all best DX on Top Band !!!
  Jay NY2NY
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