[RFI] Portable Generator Noise

[Cortland Richmond]

>>From an earlier point:  

>>There is a ground lug on the unit but the forest service frowns on > people pounding in ground rods. Is there a more portable solution for a > ground. I have my doubts that it would change anything.<

Why not just use insulated ground wire radials ?  Capacitive radials may work just as well.

Cortland
KA5S
-----Original Message-----
From: <jim at audiosystemsgroup.com>
Sent: Jul 16, 2022 3:57 AM
To: <rfi at contesting.com>
Subject: Re: [RFI] Portable Generator Noise

On page 23 of this link is a filter that I designed and W6GJB built for our HF county expeditions for 7QP and CQP. It's designed to be effective from 80M to 10M. It was added to the ARRL Handbook several years ago.

http://k9yc.com/RFI-Ham.pdf

For 6M and above, I suggest following the recommendations for transmitting chokes wound with RG8-size power cables.

http://k9yc.com/ChokesVHF.pdf

73, Jim K9YC

On 7/15/2022 10:29 PM, Mike Fatchett W0MU wrote:
> I purchased a small quiet off brand 1900 watt continuous generator with > eco mode.  It generates a lot of rfi.  I used it at a POTA activation > last weekend and it was tolerable by moving the antenna as far away from > the generator as possible.   Putting it under heavier load did not seem > to make any difference nor did decreasing the load.
> > There is a ground lug on the unit but the forest service frowns on > people pounding in ground rods.  Is there a more portable solution for a > ground.  I have my doubts that it would change anything.  I should try > hooking it up here at home and find out.
> > > WEN 56235i Super Quiet 2350-Watt Portable Inverter Generator with Fuel > Shut Off, CARB Compliant, Ultra Lightweight, Black
> > > I did have some big clamp ons and I put them on the extension cord and > that seemed to help some.  I could only get 2 to 3 turns through the > clamp ons and I had two.  Maybe I need far more turns?  I did not the > cabling handy to hookup directly to the car battery to see if the > extension cord was the radiator or if it was all coming out of the > generator.
> > Has anyone had any luck quieting them down?
> > W0MU
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> RFI at contesting.com
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