[Elecraft] OT: Thoughts on MFJ-1026 or any other phasing box

Thu Jan 7 20:01:59 EST 2021

I know this is a bit farther off topic, but if the MFJ doesn’t sound like it will work for you, I can recommend the “Loop On The Ground” receive antenna. You can google it, or go to http://www.kk5jy.net/LoG/ <http://www.kk5jy.net/LoG/> for the details. I have one, completely out of sight in the front yard under my gravel and it really works. I have a noisy neighborhood (yes my home is noisy too, but I have mitigated as much of that as I can for now) and this antenna makes radio a lot easier to enjoy. Far less noise and despite low S meter readings, signals pop out clear and easier to copy. Some like to use a preamp with this antenna…I prefer it without but that’s a matter of personal preference.

It worked surprisingly well for me, and for a few other hams I know of who have tried it. It’s worth a look...

73,
David - N5DCH

> On Jan 7, 2021, at 5:15 PM, Tim Tucker <ae6lx at worldwidedx.com> wrote:
> 
> I have one and also have a small horizontal receiving loop around the
> perimeter of the property with the intended purpose of picking noise
> generated by the neighbors' stuff.  The MJF unit works if you can
> adequately pick up the noise through the receive antenna.  I made a video
> of it that I put on youtube, but the video actually turned out pretty
> poorly because you just can't hear the noise I was demonstrating
> eliminating in the video.  Oh well.  When I originally put this in, I was
> using it to eliminate both a rogue plasma tv and also the neighbor's pool
> pump. Both of the offending devices have since been replaced so I don't use
> the MFJ 1026 as much, but it's definitely a nice tool to have in the box.
> 
> I have kicked around the idea of putting up an active receive antenna for
> it but am concerned that I won't be able to place that antenna far enough
> away from my regular HF antenna with legal limit usage.  I've always
> thought that this type of functionality could be built into the K3/K4 since
> it already has a separate RX input.  Maybe Elecraft would consider it in a
> future OS upgrade feature for the K4?
> 
> Tim
> 
> On Thu, Jan 7, 2021 at 3:46 PM Louandzip via Elecraft <
> elecraft at mailman.qth.net <mailto:elecraft at mailman.qth.net>> wrote:
> 
>> My suggestion would be to try a small, low, horizontal receiving loop.
>> This seems to be the best option to reject nearby noise sources that
>> propagate mainly via vertically polarized ground wave.  Even normally
>> horizontally polarized antennas, e.g. dipoles, still have some projection
>> in the vertical plane when viewed off axis.
>> A small RX loop is relatively cheap and easy to implement compared to a TX
>> loop.
>> 
>>    On Thursday, January 7, 2021, 4:14:00 PM MST, Alan - G4GNX <
>> g4gnx at g4gnx.com> wrote:
>> 
>> I have one and I also use an LZ1AQ double mag-loop. The mag-loop works
>> pretty well with QRM from neighbours but it has limitations, especially
>> when there's more than one source.
>> 
>> The MFJ unit kinda works, but you do need a good 'noise' antenna, which
>> I haven't installed yet. I'll be using a mini-whip which comes
>> recommended for the job. Again though, the MFJ has its limitations when
>> there are multiple noise sources.
>> 
>> From reports I've read, some people find them great and others not so.
>> 
>> Take a look at a couple of YouTube videos, that might help you decide.
>> 
>> 73,
>> 
>> Alan. G4GNX
>> 
>> 
>> ------ Original Message ------
>> From: "Dean L" <dean.k2ww at gmail.com>
>> To: "Elecraft Mail List" <Elecraft at mailman.qth.net>
>> Sent: 07/01/2021 23:00:28
>> Subject: [Elecraft] OT: Thoughts on MFJ-1026 or any other phasing box
>> 
>>> I have horrible noise ( assumedly from my neighbors) that i cant seem to
>>> kick on my K3 and kx3. The NB and NR dont touch it.
>>> Ive been watching youtube videos on this magic little box from MFJ that
>>> seems to do wonders on my type of noise.
>>> 
>>> Has anyone a MFJ-1026 they no longer need?
>>> Any thoughts on this unit?
>>> 
>>> Thanks for the bandwidth and 73
>>> 
>>> Dean K2WW
>>> 
>> 
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> 
> 
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