I'm wondering what the noise antenna would be like. My shack is in a mobile home, and there is a 25-foot run of coax to an autotuner feeding a long wire.

----- Original Message -----
From: Eric Oyen  <[log in to unmask]>
To: [log in to unmask]
Date: Thursday, October 15, 2015 3:01 pm
Subject: Re: MFJ-1025 noise canceler

>
>
> its fairly effective against single phased sources (like powerline buzz =
> and other stationary noise sources). It is the unamplified version and =
> does introduce a little signal loss. However, for what it is, it works =
> good enough that I can do weak signal work on 80m.
> 
> Now,as for what it is:
> the mfj antenna noise cancellation device is basically a diversity =
> antenna matrix. It takes signals from both the primary antenna and a =
> secondary (noise) antenna. It then mixes (or phases) those inputs such =
> that (when properly adjusted) the noise disappears while leaving the =
> signals you want intact. This technology predates DSP technology and is =
> still very useful. In fact, in combination with DSP technology, noise =
> can almost entirely be eliminated.
> 
> DE n7zzt Eric
> 
> On Oct 15, 2015, at 2:01 PM, Mike Keithley wrote:
> 
> > How effective is the MFJ-1025 noise canceler? What is it?
> >=20
> > Thanks.