[SCCC] Effectiveness of MFJ-1026 Noise Filter??

[Mark Schoonover]

I have a few videos:

First noise antenna: https://youtu.be/VoyRA8q4mDs

Second: https://youtu.be/E_duL7HJwb4

Shunt Inductors: https://youtu.be/gFE-VglwxUk


73! Mark KA6WKE

Website: https://www.ka6wke.net
Live Stream: https://www.ka6wke.net/live-stream
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Author: 4NEC2 The Definitive Guide
EMail List:: 4nec2defguide at groups.io

On Tue, Apr 2, 2019, 18:35 Dennis Younker NE6I <NE6I at cox.net> wrote:

> If anyone is willing to do a review of this piece of equipment, I'd be
> happy
> to add it to our SCCC web site.
>
> --Dennis NE6I
>
> -----Original Message-----
> From: SCCC <sccc-bounces at contesting.com> On Behalf Of Mark Schoonover
> Sent: Tuesday, April 2, 2019 4:48 PM
> To: Steve <k0xp at k0xp.com>
> Cc: SCCC <sccc at contesting.com>
> Subject: Re: [SCCC] Effectiveness of MFJ-1026 Noise Filter??
>
> Steve,
>
> Noise antenna is the critical piece to the puzzle. I'm surprised to hear a
> horizontal antenna works but in my situation that didn't happen. What I
> ended up having for a noise antenna was winding about 50' of wire
> hellically on an 8' crappy fishing pole. All man-made noise is vertically
> polarized.
>
> Next up is tuning the thing. What I do is set the noise antenna gain to 0
> then adjust the main antenna gain so there's about S4-5 noise level.
> Remember the dial number. Set the Antenna gain to 0. Do the same process
> with the noise antenna. If you can't reach the same signal strength as the
> main antenna you need to make your noise antenna larger. Once you have the
> same S reading on both antennas then it's time for phasing. Start with that
> knob all the way counter-clockwise then slowly sweep to fully clockwise.
> The dips can be rather narrow so go slow. If no noticeable dip or the noise
> level increases push the phase button and slowly turn counter-clockwise.
> You should find the sweet spot. What I do after that is to rock the main
> and noise antenna gain to get a deeper null.
>
> There's also a button for high and low frequencies give that a try too no
> matter what frequency you're using.
>
> Good luck! It's a process to figure out but once you know how to do this
> any new noise source can easily be removed.
>
> 73! Mark KA6WKE
>
> Website: https://www.ka6wke.net
> Live Stream: https://www.ka6wke.net/live-stream
> Facebook: https://www.facebook.com/ka6wke-live-stream
> Twitter: https://www.twitter.com/ka6wke
> EMail Announcement: ka6wke-announce+subscribe at groups.io
> Author: 4NEC2 The Definitive Guide
> EMail List:: 4nec2defguide at groups.io
>
> On Tue, Apr 2, 2019, 15:17 Steve <k0xp at k0xp.com> wrote:
>
> > Anybody actually have experience with the MFJ-1026 "Noise-Cancelling
> > Filter", specifically whether it's really effective at cancelling
> > plasma TV noise (at least, that's what I think my intermittent noise
> > is; I'm not about to go next door and ask the nayboors to turn their
> > TV off and on in this HOANazified area just to confirm 8-O )?? Is
> > there a better-such filter? Needs to go between my FT-991A at 100W
> > output and an antenna tuner.
> >
> > Thanks,
> > Steve K0XP
> >
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> >
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