[RFI] RV converter noise

Bill Mader billamader at gmail.com
Thu May 28 16:34:09 EDT 2020


You nailed the terminology Scott.

I use a Samlex SEC-1250UL converter after the original POS Winnebago
installed let the smoke out.  I have never heard noise/birdies on HF from
it when using dipoles or an end-fed wire, typically within 15 to 100 ft.
from the converter.

I took my PL-660 to the RV this afternoon.  I could locate noise with it
located within inches of the converter.  I chose Samlex due to my
experience with their power supplies which I have used for my ham gear.

The Honda i2000, and far worse, Predator 2000, generate far more noise.
I'm building a choke line filter described in Jim's, K9YC, paper about his
CAQP/7QP experiences.  I had planned to test it during FD this year but the
RV will stay home per NM DoH orders.


Date: Tue, 26 May 2020 18:32:57 -0500
From: K9MA <k9ma at sdellington.us>
To: jim at audiosystemsgroup.com
Cc: rfi at contesting.com
Subject: Re: [RFI] RV converter noise
Message-ID: <A0E9A817-643E-4F6F-8414-94C4D558DDC6 at sdellington.us>
Content-Type: text/plain; charset=utf-8

?Converter? in the RV world is either a 120 VAC to 12 V power supply or a
battery charger. Of course, they can produce the same kind of RFI as an
inverter.

73,

Scott K9MA

73, Bill Mader, K8TE


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