MFJ-1026 Noise Canceller - The Key to Busting QRM?

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4 жыл бұрын

Does your station suffer from the ever present and increasing noise on the HF bands? Think there is no solution to this problem? How can you overcome this QRM even in an urban environment?
Today Justin VK7TW reviews and demonstrates the effectiveness of the MFJ-1026 Deluxe Signal Enhancer/Noise Canceller.
Main antenna was a G5RV and AUX was a 30m horizontal with counterpoise
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Пікірлер: 109

@HamRadioDX 4 жыл бұрын

Have you had success with noise cancelling units? How effective are they in your installation? Comment below on your experience!

@andhanwer 3 жыл бұрын

they can be 100% effective or not at all

@donalddavis581 3 жыл бұрын

@@andhanwer depends on if you get one completely assembled or not.. roll the dice I guess.

@DaveJ-BCMA Жыл бұрын

I would love to see what antenna was used as the auxiliary antenna.

@denelson83 Жыл бұрын

I have to get this for my station. I live in an apartment building that I previously thought acted like a Faraday cage on shortwave, but which is actually simply full of RF noise, and I realized that when I observed that HF signals came in very well within my apartment during a power failure. 73 VE7NDE

@efrostrup 3 жыл бұрын

MFJ 1026 mod. Greatly enhances the unit sensitivity; can make the difference between hearing, and not hearing a weak signal under some conditions. (english_by_W9ZSJ_MFJ1026.pdf)

@Tommyr 3 жыл бұрын

I have this device and it indeed works GREAT! Worth every penny IMHO!

@kombibob 2 жыл бұрын

Well that is freaky. That was me in the sked at 5:32 on She's the Culprit. We were 20 nautical miles East of Green Cape. Bob VK2EG

@CanadianPrairiesShortwave 4 жыл бұрын

this really works, it does cancel my neighbours plasma tv noise

@VK5IR 4 жыл бұрын

Fantastic demonstration guys. I'm really impressed!

@HamRadioDX 4 жыл бұрын

Thanks!

@K3RRR 4 жыл бұрын

Great demo! This is one of the most indispensable pieces of equipment in my shack. I've had one of these for a couple of decades and it really does work IF you have a good noise antenna! 73 de Robert K3RRR

@HamRadioDX 4 жыл бұрын

Hi Robert, exactly. The key is an antenna that picks up heaps of noise! Something that seems counterproductive to move hams! 73

@James_Bowie 4 жыл бұрын

At 2:30 -- oh, if only that were true of MFJ. The standard procedure before using is to open up their gear and check for poor soldering, loose parts, variable caps with plates touching, etc, etc.

@JReed305 2 жыл бұрын

This is the best explanation I have seen of how to use this device.

@HamRadioDX 2 жыл бұрын

Thanks Jeremy

@AndyAAzeroAM 2 жыл бұрын

Thank you for the demo on this unit.. I read in the instructions that it could be used as a way to switch a phased array. Any thoughts? Thanks again, really enjoy your channel!

@Team-fabulous 3 жыл бұрын

Brilliant demo...

@daveduffy2292 4 жыл бұрын

I’m going to buy one of these. There awesome

@Caprica-Approaches Жыл бұрын

Thank you! very helpful.

@HamRadioDX Жыл бұрын

Glad it was helpful!

@ae1tpa92gwtom2 4 жыл бұрын

BRAVO, just bought one, still in the box, seems works a treat,,. thx for that timely video,.. 73s

@HamRadioDX 4 жыл бұрын

Hope you have success with it Tom and kill that noise!!

@michaelcox436 3 жыл бұрын

Thanks I'll keep my $60 BangGood version. Works great. There are also kits for around 30 bucks.

@madmax2069 2 жыл бұрын

They work just as good as the MFJ without spending a lot.

@vkradio1656 4 жыл бұрын

Great review, alot of Hams knock MFJ gear but for the price range there is nothing else out there in the market.

@SpectreOZ 4 жыл бұрын

Actually the *X-Phase* kit (or premade) is cheaper and offers similar features 👍

@SpectreOZ 4 жыл бұрын

@@K1OIK Didn't the intolerant religious zealots known as the Puritans end up in America?

@SpectreOZ 4 жыл бұрын

@@K1OIK Clearly the Puritans were worse as their ideology led to the persecution of other religions and the Salem Witch Trials...you appear to conveniently have overlooked that Britain shipped their convicts to the Americas during the 17th Century 😋

@HamRadioDX 4 жыл бұрын

Thanks for your comment VK Radio

@adkforever6997 4 жыл бұрын

@@K1OIK For Christ's sake-----STOP with the politics on a hobby video!! Can't anybody escape this crap and enjoy our hobby without divisive political fighting. Go away.

@milesprower6641 3 жыл бұрын

would this work on VHF, for example, two directional FM antennas, using it to null out a co-channel station?

@user-qm5vs3ik3b 6 ай бұрын

Uzywam 1026 na 80m bo mam bardzo silne zaklocenia od sasiada 59 plus 20 db. Bez 1026 nie zrobilbym QSO. Przez 3 miesiace robiłem doświadczenia i okazalo sie, że najleprze rezultaty sa jak mam do niego przylaczone dwie bazooka. Sa one rownolegle w odleglości 20 m. Sa redukowane wszelkie zaklocenia od sasiadow do calkowitego zera nie osłabiajac siły odbieranej stacji. Przy tej kombinacji odbior jest pozbawiony QSB. W fabrycznym 1026 jest niedopasowanie impedancji wyjściowej przez co sa straty. Należy założyć trafo na pierścieniu 1:4 i będzie 50 om. Jest opis w internecie napisany duży artykuł przez grupę specjalistów z USA. 1026 działa znakomicie ale należy z rozumem all zrobić.

@mrtechie6810 6 ай бұрын

Kindly point me to the article?

@pacoj2002 4 жыл бұрын

Does somebody use it with portable receivers like tecsun pl660 pl880 , sangean 909x and just an external wide band antenna like Aor Sa 7000 and the whip antenna in the canceller? Thank in advance.

@OllieVK 3 жыл бұрын

Just as interested in the Elad spotted at the start.

@rayerdinc2441 3 жыл бұрын

Excellent video, thank you. I have ordered a QRM Eliminator as this a little out of budget but may reconsider. The AUX antenna, could it be long wire in the house/loft or does it need to outside, please?

@alzeNL 4 жыл бұрын

Just ordered one of these, i'm slowly reducing all sources all of QRM in my shack so am looking forward to add this in to hopefully get everything as optimal as I can. Interested to know what is the best antenna to use for cancelling the noise.

@HamRadioDX 4 жыл бұрын

Best antenna is one that hears the most noise or closest to the noise source (if you know what is causing the noise that is)

@DonzLockz Жыл бұрын

Nice piece of kit. Wouldn't high-end radios have this inbuilt?

@OM0ET 3 жыл бұрын

Great video! I wonder why the flagships like Yaesu FT101D or Icom IC7610 doesn't have this system integrated. That would be so great! 73, Paul

@kd5you1 2 жыл бұрын

I wonder if transceivers that have notch filters would achieve the same result.

@624radicalham Жыл бұрын

@@kd5you1 They simply don't.

@MACE1-1 8 ай бұрын

VC Tune can produce the same if not better results...for those with the FT101D or FTDX101MP

@iruwamucii Жыл бұрын

where should i buy one am in kenya

@gfmucci 2 жыл бұрын

Any experience using the MFJ-1026 together with the MFJ-959C antenna tuner/preamp?

@ivanvergara158 2 жыл бұрын

Buen equipo

@SteveG4YTK Жыл бұрын

Thanks for the video. I do have a question, I am thinking of buying one of these due to a neighbour have solar PV installed. My question is I use mainly CW , (Never full break-in). The hf transceiver is a FTDX10, does the unit switch fast enough for cw.? Many thanks.

@timsmith428 6 ай бұрын

..yes...I'm 99% cw... VE3IIM/VE6PG

@markramsay6399 3 жыл бұрын

How critical is the secondary antenna? On the one hand I guess you want it to be "in tune!" with the band you are listening to. On the other hand you do not want it to copy the primary antenna either? Watching loads of vids the secondary comparison antenna seem to be everything from some mains wire strung around the garden to an aux that is worthy in its own right. That does not quite make sense to me - I assume you want the aux to be pretty poor at picking up the RX you are actually aiming at.

@aarontooth 10 ай бұрын

So is a "QRM eliminator" any different than a directional antenna? I get the general idea of feeding in a second antenna and adjusting its phase to cancel noise. But that's just a phased array antenna, essentially just a directional antenna. You could also use, for eg, a Yagi, couldn't you? Or is this a way of making your array adjustable?

@GeorgeAdams 20 күн бұрын

It is very different from a directional antenna. A yagi, magnetic loop, or other antennas with directional characteristics will pick up signals (plural) in a given direction better than another. The QRM eliminator is mixing the opposite waveform from one antenna into the waveform from main antenna. If both equally hear the signal you want to hear, the signal will be gone. But the value is when one hears the noise better and the signal worse; when you mix in the opposite, the noise goes away but the signal from your main antenna remains.

@GeorgeAdams 20 күн бұрын

When he says in the video that broadband noise isn’t eliminated as well, it might be because both antennas hear the noise equally and it sufficiently covers the desired signal in the main antenna.

@thuff3207 11 ай бұрын

I would try common mode chokes one at the antenna and one near you radio and you see less noise. After that without buying a new receiver that has this built in. Then try this prodcut.

@aarontooth 10 ай бұрын

I got a common noise choke with high hopes and it did nothing. I think it will help in very specific situations with very nearby noise sources, but otherwise I don't think it will do much.

@anthony4585 3 жыл бұрын

Will this work with a Wolf River Coils Silver Bullet 1000 Take It Along Antenna?

@andhanwer 3 жыл бұрын

no unless you use that antenna as a noise antenna and use a real antenna connected to 'main'

@howardhiggins9641 3 жыл бұрын

The waterfall display, in conjunction with the audio improvement, is a very effective demonstration. However, what do you mean by Birdie ? The only birdies I'm familiar with are birdies internal to the receiver itself. Isn't that noise some other signal source, unrelated to the receiver, that just happens to be in the same frequency range ? Thanks and 73

@aarontooth 10 ай бұрын

I've heard tons of people using "birdie" to mean interference in general. Pretty sure it's a misuse/misunderstanding, because i don't think any of these new radios have birdies.

@radioaustralia5070 4 жыл бұрын

I havemy next doors neighbours solar panels trashing 80 and 40 meter bands, would u have any suggestions, cheers.

@HamRadioDX 4 жыл бұрын

Does it happen at night or disappears then? At least 80m is predominately a night time band.

@andhanwer 3 жыл бұрын

put up some kind of panels to block his sun or use smoke

@davidenglund 2 жыл бұрын

Looks impressive for single source of noise. What would you suggest for broad band noise? I'm in a suburban townhome and have a pretty high noise level I'm trying to overcome. Do you have any suggestions? Thanks.

@HamRadioDX 2 жыл бұрын

Hi David, Yes the noise canceller doesn’t work in every situation. What antenna do you have? Perhaps a choke near the antenna? QRM Guru has a lot of useful tips and ways of tracking down noise and/or steps you can take to fix it. qrm.guru 73 Hayden

@mrtechie6810 6 ай бұрын

@@HamRadioDXhow about for an indoor antenna? I have high noise floor across the band!

@Frankh77 Жыл бұрын

I was hoping is was a scam. Now I need one...

@Quake3DeathGod 3 жыл бұрын

Does it block your hearing of distant stations?

@DonauweIIe 2 жыл бұрын

that model cant do a 180° phase turn, the QRM is then accordingly not fully blotted out. there are other versions of the QRM-Eliminiator available on the net that are better and cost about 1/4 of that, for example the QRM-Eliminator model "X-Phase", there are a number of demo videos of it on yt.

@624radicalham Жыл бұрын

But can you run an amp with them? At least the MFJ1026 can be modded with relays to run QRO. Not sure if mods exist for those cheap noise cancellers.

@DonauweIIe Жыл бұрын

@@624radicalham yes, simply put the PA after the phasefilter. Radio -> Phasefilter -> PA -> Antenna📶

@624radicalham Жыл бұрын

@@DonauweIIe Thanks!

@kenenthkozak6004 4 жыл бұрын

"haych F" Love the accent lol

@HamRadioDX 4 жыл бұрын

Yeah sorry about that, just a disappointing side effect of being Australia :D

@kenenthkozak6004 4 жыл бұрын

@@HamRadioDX We all need to Pray for your country's safety and that of your animals as well. So sad.

@adkforever6997 4 жыл бұрын

@@K1OIK STOP with the politics.

@nathanpetrovski7525 3 жыл бұрын

I would get one but I don't have a second antenna for noise reception.

@HamRadioDX 3 жыл бұрын

The box comes with an internal whip antenna, which may/may not be effective for noise... but even a smaller antenna outside will work.

@DonauweIIe 2 жыл бұрын

a short piece of copperwire would be enough for "second antenna", close to the source of the qrm. that short wire can be hold in different places, to detect where the qrm comes in strongest, to then keep the that wire there. that would i think be most effective. a bigger second antenna would null out the desired signal, so it doesnt need much for the second antenna.

@mrtechie6810 6 ай бұрын

@@HamRadioDXit's a whip antenna, not internal like a ferrite rod, correct?

@johnratcliffe6438 4 жыл бұрын

I wonder how this compares to BHI products from the UK? Anyone used both that can shed some light?

@andhanwer 3 жыл бұрын

BHI makes audio dsp units they do not make anything remotely resembling this noise phaser unit this is completely and fundamentally different It allows you to null local interference by phasing it out while using two antennas it does not work on audio

@johnratcliffe6438 3 жыл бұрын

@@andhanwer The end result of either is audio clear(er) of rubbish; I couldn't give a toss whether each gets there a different route. I am only interested in the end result.

@andhanwer 3 жыл бұрын

@@johnratcliffe6438 wow, with an approach like this who needs radio

@johnratcliffe6438 3 жыл бұрын

@@andhanwer I'm rolling my eyes at you.

@andhanwer 3 жыл бұрын

@@johnratcliffe6438 as expected and right on schedule

@ammocraft 4 жыл бұрын

I've never had that much success with mine. Out of interest, what were the main and aux antennas?

@HamRadioDX 4 жыл бұрын

Main antenna was a G5RV and AUX was a 30m horizontal with counterpoise

@ammocraft 4 жыл бұрын

@@HamRadioDX Ah, OK, thanks...so similar polarisation, but not identical. I think I need to persevere with mine, as most HF bands are unworkable here at home.

@HamRadioDX 4 жыл бұрын

The AUX antenna basically can be anything but needs to hear the noise source trying to be eliminated at least as good as the main antenna, so if you know the noise source this can be an immense help in choosing a suitable antenna

@ammocraft 4 жыл бұрын

@@HamRadioDX Yeah, the instructions say to make it as near as possible the same type as the main one so it hears the same noise...but I'm space limited, and run an 80m horizontal delta loop round the garden, so hard to match that! The other issue is it's general noise, not a nice defined spike like in your example.

@HamRadioDX 4 жыл бұрын

Yes. As mentioned by Justin, broadband noise is not as easily nulled like something direct

@sm7fbj476 3 жыл бұрын

Quite a lot of jiggle/time B4 all is set up for QSO. Nice video Though!

@donalddavis581 3 жыл бұрын

absolutely no luck here with one. regardless of what I do what aux antenna i use. total waste of good money! Maybe I got a bad one.

@mrtechie6810 6 ай бұрын

@@Thejohnnyoshow kindly explain?

@Thejohnnyoshow 6 ай бұрын

@@mrtechie6810 That's a really old post. It worked, but it kept burning out the mini whip because of coupling. If I used a 75' directly into the noise canceler, then there was just too much going into it (coupling), which would blow the bulb (used as slow blow fuse) on the noise canceler. I have found the best options to be a W6LVP mag loop or, as a cheaper option, a loop-on-ground antenna as my noise antenna. The LOG attenuates so much that it will not have a coupling issue with my main antenna. And the W6LVP is just better hardware and will not fry if is with in 30' of my 100w transmit antenna (the w6lvp has also been tested near 1k transmit antennas according to the builder with no issues)

@mrtechie6810 6 ай бұрын

@@Thejohnnyoshowthanks. I have a high HF background noise level in the apartment. What do you recomnend?

@Thejohnnyoshow 6 ай бұрын

@@mrtechie6810 so you have limited options for outside antennas i assume. what kind of antenna are you trasmitting with?