This is not a plug and play type device. You need two external antennas for it to be effective. A primary antenna that you receive and transmit on and an auxiliary antenna that can hear the "noise" equally well. Achieving this setup takes some experimentation and patience. I tried multiple types of auxiliary antennas until I found a suitable match. My main antenna is a 67' Off Center Fed Dipole. The auxiliary antenna I finally settled on is an end fed 60' piece of wire with a 9:1 unun. The MFJ-1026 does it's job of cancelling noise. Keep in mind this device will not reduce normal atmospheric noise but it does a great job of eliminating the neighbors plasma TV noise.
Verified purchase: Yes | Condition: Pre-owned
I had to customize it so it will work on the AM Broadcast Band. Who were the idiots that design a circuit that works on AM Broadcast Band and then adds filters to block it??? Also changed two capacitors for better performance, and re-soldered several cold solder joints. The pots are really cheep, after several weeks of use I had to replace all of them. The device works OK (Not great, just OK)… but it is built extremely poorly with cheep components!
Verified purchase: Yes | Condition: New
I operate portable from a motor home, the noise generated by 240 v a.c. invertor, solar controller , fridge and freezer can make it difficult to hear other stations that are weaker than the noise, I was having to switch these noise source's off to operate radio. Since setting up the mfj 1026, I can now phase out these noise sources. The unit works . The manual states your receiving antenna must be able to hear the noise the main antenna does or the unit won't work. With the supplied whip, the box hears all the internal noises very well and can easily phase out my own generated noises. Yet there was other noises on the band the internal antenna could not hear so could not phase out, throwing up a simple wire antenna out side solved this issue, you just need to change a internal jumper so the pre amp will work with a external auxiliary antenna. Very happy with this purchaseRead full review
Verified purchase: Yes | Condition: New
As a noise cancelling product it really works well. I moved closer to town and the power line noise was S9+20db on 80m; using this device at the front-end (antenna side) and a DSP loudspeaker has meant that I can still operate my ham radio station. So YES YES YES HIGHLY RECOMMENDED! Also works with plasmas tv screens noise reduction. Only weak point is the QA of the printed circuit board inside. There is a great you-tube video on this equipment with a modification to ground the "noise" antenna input when transmitting with a high power linear amplifier.. Thanks MFJ..
Verified purchase: Yes | Condition: New
I haven't done the tx/rx relay wiring yet, but as for as reception goes, the mfj-1026 has proven to be a very useful device in the battle against HF RFI (arc noise, plasma screen TVs, square wave power inverters, all prevalent here near an RV park). Follow the directions, and you'll get "in the neighborhood" with the knob settings (perhaps needing a little more 'tweaking' to perfection). Once that 'perfection' hits, however, you will know it! The noise leaves in favor of the desired radio signal. Be careful w/ the t/r interface connection... I haven't done it with my radio yet, for all of the various 'suggestions' as to HOW (some say pins from the ACC plug, most say pins from the DATA plug, and some suggest an outright additional external relay for interfacing w/ my Icom). Also, as the manual states, your antenna tuning has to be done AFTER the '1026 (i.e., wired radio RF out '1026 antenna tuner balun/unun [if applicable] antenna). If your radio has an auto tuner built in, then turn it off, and tune things yourself!Read full review
Verified purchase: Yes | Condition: New
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