I have to resonate with those who scratched their heads, Tim. First of all, you need to pan your audio over onto the right channel for the video and reupload it--but more importantly, if you close your eyes and try to ignore when you have the phase cancellation circuit IN and OUT, there is no perceptible difference in the levels with the canceller in and out. I do hear a shift in the noise quality, but it's not something I'd call "reduction" of the noise. Your demo is otherwise excellent, but without that single element--the unit actually working--you're going to get a lot of flak. To give you the benefit of the doubt, perhaps the noise source is audible to you but not to that lavaliere microphone you have plugged into your camera's left channel. The concept seems sound, but there's no evidence presented in this video. Best 73 W0XO
Interesting video thanks for posting, I did however have difficulty hearing a massive difference because of the ambient noise and general low volume of the clip (despite putting the volume to full), perhaps recording the audio output and superimposing in segments of the clip might have been better. Excellent little device none the less...
@@KandiKlover Tim gets a better result on the second attempt tweaking the phase around 8:50, it takes headphones (with the audio set to maximum) to sufficiently appreciate any difference 👍
I've used the 1025 for a while in my SWL set up. Very important to get the antenna configuration right. First thing is to have 2 very similar antennas if not identical antennas. They should be in the same polarization. Second thing is the separation between them. Should be approx. 1/4 wavelength. If they are long wires, they should be staggered by something like a 1/4 wavelength. I find that if they are placed far enough apart I can get a pretty deep null very easily.
Like many other comments, I couldn't hear much noise reduction at all. A useful device would be one that is able to pull a weak signal out of the noise that the NB circuit in our rigs is not able to eliminate. Otherwise you're just making a slightly different sounding noise. It's an interesting concept, but the proof is in making an unintelligible signal suddenly clear. Can you demonstrate that for us, perhaps?
I’m sorry but I just didn’t hear or see this thing knock down the noise. I’m sure it’s a wonderful product and perhaps it was just a mistake. Thanks for taking the time to make the video.
I bought one of these at a Ham swap for $20. When I opened it up I found a blown 100uH choke blown out. Replaced it & it fired up. I didn't expect much but it is miraculous for my QTH. Terrible line noise sometimes at my QTH & this device removes 95% without affecting sensitivity or signal quality.
Try listening with some headphones and see if that helps. This is one of those deals where the sound quality on youtube just isn't good enough to hear what is going on with the transceiver.
I just realized that my sensing antenna did not work right even though I was able to pull the noise up to the same level I could not null that much. I just tried a long wire to it and viola, I get a huge null effect on the noise.
You need two antennas to make this work. The RX antenna for the MFJ-1026 needs to hear the noise at the same level as your regular TX/RX antenna. If you can't put up an additional antenna, this device won't help much. You might be better off with a good DSP based solution to help eliminate your noise problem.
Thanks for the video, but sorry I can not tell that it is doing much of anything. However, after a number of years as a radio dj listening to mega db of music in headphones my hearing may be shot. 73 de W5EN Steve
There seems to be some common misconceptions on what to expect from a unit like this. You target a specific noise source to eliminate, which may or may not result in an overall S-Unit decrease. In some cases, the noise you might want to target could be near the same level as ambient noise or a wanted signal but is irritating enough to interfere with intelligibility. With this device, you can target the interfering signal and eliminated it. You need a good listening antenna too.
Good demonstration. My rig is not as high tech as yours, I'm running a Yaesu FT-840. I have one of these units also, and my situation is bad too because I live in an upstairs apartment. Lots of noise on 40 meters in the evening just like what you demonstrated. Someone's TV, I'm assuming. I have 4 dipoles on the ceiling for 12/15/17/20 meters, and in the bedroom I have a 40 meter TAK-tenna, and a portable vertical for 80 meters. A ham friend suggested I use the building AC ground for the second antenna. It works better then the small supplied telescoping antenna. I like your small loop idea, but I don't really have any place to put one. Even though propagation is bad now, I don't notice any effect from the MFJ unit on the bands above 40 meters. Thanks for some explanation on using the unit, I'm good on QRZ. 73 de N5NUK.
@@624radicalham I didn't use the AC system, I should have clarified that at the start. Besides, each apartment has its own AC unit. The aux antenna coax connects into the back of the Noise Canceller.
@@dogbarbill Thanks so much for the reponse! I know that some people have tried using the AC 120 Volt ground screw on the wall jack as an antenna, so I understood you had done that. To clear my question up a little, what did you use for an auxiliary antenna? I really appreciate this.
@@dogbarbill Got it. Thanks for answering after all these years. I just received my 1026 recently and I'm experimenting and it's doing well actually on the internal whip. 73!
The noise, or secondary, antenna doesn't have to be anything special in most cases. You would set it up and tune it differently depending on the range to the noise source.
No offense Tim but you might need glasses and hearing aides cause the unit made very little if any real difference when switching it and out so hence not a very impressive demo. Might need a better "noise" antenna.
several things wrong with this video, I don't know where you have the volume control and rf gain set and there is no incoming signal from a station, when you remove the noise I cannot see what happens to the incoming signal. Does that go down also. I can do what you did by turning down the RF gain. but it lowers the volume level also. it seems so does the 1026. thanks for showing video, but i'm going to check this out somemore. 73
I've got one and it does work , It's nothing new in technology , I've used Noise cancelling, Phase shifting etc to combat noise for years ...... He obviously doesn't know how to use or set it up , It's all down to the noise antenna !
You need to know that it WILL respond to Plasma TV BUT when the picture content or brightness changes, and it's doing it all the time, the 1026 settings need changing. This would be too often and rapid to allow you even to think about having QSO. I found that with QRN types, static, ignition and electric motor type noises and with an adequate 2nd antenna, well-sited, it works but with Plasma TV, the only way is a 5lb hammer through the screen. The noise in the demo sounded like plasma and I wasn't impressed with results he got. When doing its job on a steady signal, it can very effective. Plasma..forget it!
I couldn't hear a difference either but below is a link to a video of it working amazingly well so in this video here there is some setup issue. th-cam.com/video/ctOITCQFico/w-d-xo.html th-cam.com/video/e95hlEJsxEU/w-d-xo.html th-cam.com/video/TSF1O0Dhols/w-d-xo.html
I used to be on the WWDX forum but I got tired of a couple of know-it-alls who don't know what they're talking about stalking me and following me around and harassing me when I tried to offer assistance or experience and would post BS. One of their stupidities was to claim a 5T x 4" former coax choke would work for the bottom of a T2LT. It doesn't. RF in the shack, high & variable SWR and poor performance. I replaced it with a 16T x 2.5" and it was perfect. Your moderators suck, complained and nothing changed. Closed my membership and walked away. Sad when an otherwise quality forum caters to bullies and ignores the regular guy who only wanted to share knowledge and experience.
What he should tell you is that what the electronics is achieving is that it is mixing the second signal out of phase with the main ant. IF you ever heard noiseless-headphones work than you can believe this. You can experiment without having this device by just connecting another antenna to the input of a receiver. You may have a noise situation where the interfering noise is already out of phase and it will cancel itself out when mixed with that place on the band.
Too much talk volume and not enough transceiver volume. I could hardly tell the difference. Yes, there was an observable difference but not one that would convince me to spend that kind of money on it. However, I'm sure under the right circumstances it would have worked more effectively. I think it was overwhelmed with too many noise sources in your environment in all fairness to the MFJ-1026. Al W1VTP
I finally did detect the difference when he was going through the adjustment procedure. I think his big mistake was demonstrating on a frequency that was noisy to begin with without the "motorboat" noise. He should have demonstrated it on a frequency on which a QSO was going on, and on a day when there was less QRN. There are other videos that demonstrate the difference much more effectively. Sorry, had to "thumbs down" this one.. He didn't do MFJ justice for giving him the unit.
No perceptable difference heard or seen. I have a WIMO unit that actually works. MFJ seems do be a disappointment in this case. Still, it doesn't get much use, mostly I just use the rf gain.
i like to see it hook up to your ft-897 i have a ft-897d you have one in the background can you not hook it up on another video you are using on a receive that i do not have it is hard to get rid of plasma tvs interference plasma is sporadic interference the fucking fcc and ic canada needs to look into this matter there are a lot of pissed off folks out there and i do not watch tv at all i guess my hobby is fucked up unless i see it hook to an FT-897 i will not buy one just read the comments below and yah your audio does suck but good demo thanks karl out 73s
After many years of this video being posted I also agree that there isn't a change to be heard.
I have to resonate with those who scratched their heads, Tim. First of all, you need to pan your audio over onto the right channel for the video and reupload it--but more importantly, if you close your eyes and try to ignore when you have the phase cancellation circuit IN and OUT, there is no perceptible difference in the levels with the canceller in and out. I do hear a shift in the noise quality, but it's not something I'd call "reduction" of the noise. Your demo is otherwise excellent, but without that single element--the unit actually working--you're going to get a lot of flak. To give you the benefit of the doubt, perhaps the noise source is audible to you but not to that lavaliere microphone you have plugged into your camera's left channel. The concept seems sound, but there's no evidence presented in this video. Best 73 W0XO
Interesting video thanks for posting, I did however have difficulty hearing a massive difference because of the ambient noise and general low volume of the clip (despite putting the volume to full), perhaps recording the audio output and superimposing in segments of the clip might have been better.
Excellent little device none the less...
Must be deaf.
@@KandiKlover Tim gets a better result on the second attempt tweaking the phase around 8:50, it takes headphones (with the audio set to maximum) to sufficiently appreciate any difference 👍
I've used the 1025 for a while in my SWL set up. Very important to get the antenna configuration right. First thing is to have 2 very similar antennas if not identical antennas. They should be in the same polarization. Second thing is the separation between them. Should be approx. 1/4 wavelength. If they are long wires, they should be staggered by something like a 1/4 wavelength. I find that if they are placed far enough apart I can get a pretty deep null very easily.
Like many other comments, I couldn't hear much noise reduction at all. A useful device would be one that is able to pull a weak signal out of the noise that the NB circuit in our rigs is not able to eliminate. Otherwise you're just making a slightly different sounding noise. It's an interesting concept, but the proof is in making an unintelligible signal suddenly clear. Can you demonstrate that for us, perhaps?
This video is great. I now know not to waist my money on this unit as it seems to do nothing.
I’m sorry but I just didn’t hear or see this thing knock down the noise. I’m sure it’s a wonderful product and perhaps it was just a mistake. Thanks for taking the time to make the video.
I bought one of these at a Ham swap for $20. When I opened it up I found a blown 100uH choke blown out. Replaced it & it fired up. I didn't expect much but it is miraculous for my QTH. Terrible line noise sometimes at my QTH & this device removes 95% without affecting sensitivity or signal quality.
you should have put speaker closer to your camera, I can barely hear the noise from the radio before you cancel it out.
It kind of sounded like noise was lower, but the S-meter never changed (that I could tell). What's up with that?
I played this through my pretty high end audio system and i didnt know any difference. I get better noise reduction using my RF gain knob.
I have one and pull stations I can't hear out of the noise all the time.
I just got mine today and it works GREAT! Thanks for your video.
Try listening with some headphones and see if that helps. This is one of those deals where the sound quality on youtube just isn't good enough to hear what is going on with the transceiver.
I have one, it works well on a single frequency interference but most noise is a broadband static and can only reduce that by about 3-5 db.
I just realized that my sensing antenna did not work right even though I was able to pull the noise up to the same level I could not null that much. I just tried a long wire to it and viola, I get a huge null effect on the noise.
You need two antennas to make this work. The RX antenna for the MFJ-1026 needs to hear the noise at the same level as your regular TX/RX antenna. If you can't put up an additional antenna, this device won't help much. You might be better off with a good DSP based solution to help eliminate your noise problem.
I am sorry, but i did not hear any difference between the box on or off, I think wasted money sorry.
Thanks for the video, but sorry I can not tell that it is doing much of anything. However, after a number of years as a radio dj listening to mega db of music in headphones my hearing may be shot. 73 de W5EN Steve
You too? I was a jock for 52 years (1965-2017) and I can't hear squat!
I have a good hifi and i couldnjt hear the noise go down much at all.
Heres my video of the MFJ with a bandscope... clearer noise demo IMHO... see what you think. All the best.
th-cam.com/video/wHdSsoHPNYs/w-d-xo.html
S20? Where does that terminology come from? Don't you mean 20db over 9?
The terminology come from ignorance.
There seems to be some common misconceptions on what to expect from a unit like this. You target a specific noise source to eliminate, which may or may not result in an overall S-Unit decrease. In some cases, the noise you might want to target could be near the same level as ambient noise or a wanted signal but is irritating enough to interfere with intelligibility. With this device, you can target the interfering signal and eliminated it. You need a good listening antenna too.
you mention a foot switch for the rx tx switch do you mean just like a on of switch shorting the 2 pins on a connector etc
Could i use a UHF yagi as the aux antenna? Or is it best to try to use a 2nd 40M or 80M antenna?
Good demonstration. My rig is not as high tech as yours, I'm running a Yaesu FT-840. I have one of these units also, and my situation is bad too because I live in an upstairs apartment. Lots of noise on 40 meters in the evening just like what you demonstrated. Someone's TV, I'm assuming. I have 4 dipoles on the ceiling for 12/15/17/20 meters, and in the bedroom I have a 40 meter TAK-tenna, and a portable vertical for 80 meters. A ham friend suggested I use the building AC ground for the second antenna. It works better then the small supplied telescoping antenna. I like your small loop idea, but I don't really have any place to put one. Even though propagation is bad now, I don't notice any effect from the MFJ unit on the bands above 40 meters. Thanks for some explanation on using the unit, I'm good on QRZ. 73 de N5NUK.
How exactly did you use the building's AC system? Where did you plug in the auxiliary antenna
@@624radicalham I didn't use the AC system, I should have clarified that at the start. Besides, each apartment has its own AC unit. The aux antenna coax connects into the back of the Noise Canceller.
@@dogbarbill Thanks so much for the reponse! I know that some people have tried using the AC 120 Volt ground screw on the wall jack as an antenna, so I understood you had done that. To clear my question up a little, what did you use for an auxiliary antenna? I really appreciate this.
@@624radicalham I'm using a receive loop virtually exactly like the MFJ-1888. I have nothing attached to a ground screw on a wall jack.
@@dogbarbill Got it. Thanks for answering after all these years. I just received my 1026 recently and I'm experimenting and it's doing well actually on the internal whip. 73!
Hi can this unit be used on a receiver for swl..
Right channel audio missing.
you don't want to use a loop as noise antenna
use end fed wire with 9:1 unun instead
Wow this is an amazing little device
Eric Owens Oh? Why do you say that?
So I have to purchase 2 antennas & then connect it to this MFJ thing to reduce the noise?! 🤔
The noise, or secondary, antenna doesn't have to be anything special in most cases.
You would set it up and tune it differently depending on the range to the noise source.
No offense Tim but you might need glasses and hearing aides cause the unit made very little if any real difference when switching it and out so hence not a very impressive demo. Might need a better "noise" antenna.
+Bill C There was a difference, but not huge, but if you are doing weak signal work every little helps. But agreed, its not a miracle box ! ):
several things wrong with this video, I don't know where you have the volume control and rf gain set and there is no incoming signal from a station, when you remove the noise I cannot see what happens to the incoming signal. Does that go down also. I can do what you did by turning down the RF gain. but it lowers the volume level also. it seems so does the 1026. thanks for showing video, but i'm going to check this out somemore. 73
this really works, it does cancel my neighbours plasma tv noise
Sure, no problem. You still need two antennas, though.
wit all respect to MFJ ..... but this is a NO GO !!
I've got one and it does work , It's nothing new in technology , I've used Noise cancelling, Phase shifting etc to combat noise for years ...... He obviously doesn't know how to use or set it up , It's all down to the noise antenna !
Mono audio made me leave early. Sorry guys.
Not a miracle, but a noticable improvement
Muito bom amigo parabéns pelo aparelho redução muito bom 73
You need to know that it WILL respond to Plasma TV BUT when the picture content or brightness changes, and it's doing it all the time, the 1026 settings need changing.
This would be too often and rapid to allow you even to think about having QSO.
I found that with QRN types, static, ignition and electric motor type noises and with an adequate 2nd antenna, well-sited, it works but with Plasma TV, the only way is a 5lb hammer through the screen.
The noise in the demo sounded like plasma and I wasn't impressed with results he got.
When doing its job on a steady signal, it can very effective. Plasma..forget it!
I don't see any difference with you noise reducer???
I couldn't hear a difference either but below is a link to a video of it working amazingly well so in this video here there is some setup issue.
th-cam.com/video/ctOITCQFico/w-d-xo.html
th-cam.com/video/e95hlEJsxEU/w-d-xo.html
th-cam.com/video/TSF1O0Dhols/w-d-xo.html
Elecraft has come a long way over the years . . .
thank you 73"s
I hear absolutely no difference. I don't understand why you say it's so effective. When you switched it in, I could really still hear the noise.
I used to be on the WWDX forum but I got tired of a couple of know-it-alls who don't know what they're talking about stalking me and following me around and harassing me when I tried to offer assistance or experience and would post BS.
One of their stupidities was to claim a 5T x 4" former coax choke would work for the bottom of a T2LT. It doesn't. RF in the shack, high & variable SWR and poor performance.
I replaced it with a 16T x 2.5" and it was perfect.
Your moderators suck, complained and nothing changed. Closed my membership and walked away.
Sad when an otherwise quality forum caters to bullies and ignores the regular guy who only wanted to share knowledge and experience.
Seems to be doing nothing...Waste of money ,are you serious...
What he should tell you is that what the electronics is achieving is that it is mixing the second signal out of phase with the main ant. IF you ever heard noiseless-headphones work than you can believe this. You can experiment without having this device by just connecting another antenna to the input of a receiver. You may have a noise situation where the interfering noise is already out of phase and it will cancel itself out when mixed with that place on the band.
Doesn't seem to work well. Time will tell if something better comes out.
could not see any if at all improvement,another box that does not do much
jeff .. m0prf ..
Very good!
they need to tell you, you need two ant's before you buy it! :(
I personally heard ZERO difference from before and after with this item.
Thanks!!!
not very impressed,a company called WIMO are doing one thats seems cheaper and more effevtive
Cosmo Dookie bought timewave unit...works very well.
External antenna works best.
battlestarone oiffig x
Too much talk volume and not enough transceiver volume. I could hardly tell the difference. Yes, there was an observable difference but not one that would convince me to spend that kind of money on it. However, I'm sure under the right circumstances it would have worked more effectively.
I think it was overwhelmed with too many noise sources in your environment in all fairness to the MFJ-1026.
Al W1VTP
good !
I finally did detect the difference when he was going through the adjustment procedure. I think his big mistake was demonstrating on a frequency that was noisy to begin with without the "motorboat" noise. He should have demonstrated it on a frequency on which a QSO was going on, and on a day when there was less QRN.
There are other videos that demonstrate the difference much more effectively. Sorry, had to "thumbs down" this one.. He didn't do MFJ justice for giving him the unit.
No perceptable difference heard or seen. I have a WIMO unit that actually works. MFJ seems do be a disappointment in this case. Still, it doesn't get much use, mostly I just use the rf gain.
Didn't seem to work very well at all
This device didn't seem effective. I'll hold on to my $200.
I dont think this works at all...
i like to see it hook up to your ft-897 i have a ft-897d you have one in the background can you not hook it up on another video
you are using on a receive that i do not have it is hard to get rid of plasma tvs interference plasma is sporadic interference the fucking fcc and ic canada needs to look into this matter there are a lot of pissed off folks out there and i do not watch tv at all i guess my hobby is fucked up unless i see it hook to an FT-897 i will not buy one just read the comments below and yah your audio does suck but good demo thanks
karl out 73s
I didn't hear the effectivess of this unit. Sorry.
You should have used it to block out static noise! You blew this review, you really should DELETE this video
Thats only a new toy but don´t work good... release more test and less speech...
That MFJ "toy" has been around for 35 years ...