We have tons of noise in town. Led lights, billboards and god know what else. Up to a 9+ in front of various stores. So my wonder was if anyone had tried the phasing qrm eliminator out in a mobile setup? I'm thinking about trying it this weekend.
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Qrm eliminator mobile use
- Thread starter nfsus
- Start date
Man made noises are difficult to eliminate because they vary so much & you can't keep up with all of them & even more so in a mobile even if someone else was driving. Get a good DSP External Speaker or a good DSP Filter & that's about the best that you can do & make the best of what you get along with a quality receiver.
For a QRM eliminator to work the noise needs to be from a fixed location relative to the antenna, not the situation when mobile.
Those devices use a 2nd Reference Antenna that needs to be similar or same to ant #1 ...... doesn't seem likely one would be able to arrange that.
I've noticed it's not bad as I thought it would be. And it depends on the source, some sources cant be knocked out. In out town theres Hv transmission lines on one end of town, 6 or 8 traffic lights, led signs and dollar generals. If I tune on the hv side it still works on the other end. I'll admit it isnt an end all cure all but it's way better
I added a mag mount to the vehicle that was around 5ft from the main antenna. Worked good.
Have you tried one? I was amazed at what it can do. Perfect? Not hardly but not bad either.
I use a ClearSpeech Base DSP Module on every radio I own or use with SSB & AM in my shack. I have for years & I have Zero desire to operate without one on any radio. I use an ICOM 7600 & ICOM 9100 (Both Optional Roofing Filters Installed) & they both have a very good DSP system as does my ICOM 7000 in my mobile which I use a ClearSpeech DSP Speaker with. I recommend the ClearSpeech products to everyone who hates Noise like I do. They make a great receiver even better.
Shadetree Mechanic
Delaware Base Station 808
In the mobile, it could help eliminate noise that comes from the vehicle itself. The ones that say it can't be done, should not stand in the way of the ones doing it.
I have a mfj 752. Not impressed. Not quite what you were talking about. And some noise just dont go away with the box. I notice I can tune it so even if the noise is there I am able to pull the rx signal up higher. It's all magic n phasing im sure. It also will act as a preamp when the knobs are in certian places. It's hard to explain to people that have not tried one because it is a tune it till you get the best kind of situation. And if it works it's great, but on the stuff that dont work you just get frustrated.