[RFI] 160m & 80m RFI issues requesting ideas for ANC4 sense antenna to cancell out local noise

Kenneth G. Gordon kgordon2006 at frontier.com
Sun Nov 1 14:55:51 EST 2015

On 1 Nov 2015 at 10:09, Joe Wolfe wrote:

> The noise I have is a very loud and strong White Noise.

Ah, yes. The same sort of crap we are experiencing around here. After at 
least two years of work here, we have finally established that it is a 
mish-mash of many, many other sources all jammed together, and not any 
one single source. By elminating the stronger local sources, the White Noise, 
is vastly diminished.

Mine here was 10 to 20 db over S-9 on 80 until we eliminated a single source 
that was within 4 blocks of my station. At that time, the White Noise level 
dropped to S-4 to S-5 most of the time.

Even so, I still have multiple sources scattered around the town near me, 
including one at our local high-school.

>  I am hoping the
> ANC-4 will help with that.

Well, it probably will, if you get a good enough sense antenna and spend 
enough time getting to know how to operate it. Effective use of that method 
requires some finesse.

>  The noise is definitely not in my house..I have
> killed the power to the whole house and the noise is still present. Handhelds',
> etc.  have not been able to pinpoint any source.

You need a directional antenna, at the very least...

> So..I am reading this thread very closely to see if any new ideas pop up
> that might help steer me in the right direction!


I wish I was closer to you. I would help you DF this garbage. 

But as WX5L says, I too think your time would be far more efficiently used in 
trying to track this stuff down than trying to "cover it up".

Also, as another member says, using any receiver you use to try to track it 
down should be set to AM, rather than to CW or SSB, as this will make your 
job a bit easier by making it much easier to recognize the differences in the 
sounds of the noise.


More information about the RFI mailing list