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24.10.117.6
I have an ASL mini phono that has been modified with better caps etc. I had stopped using it because I like a 6922 phono section better. Plus the ASL picks up my neihbors CB like crazy. I have been using it again with my Bottlehead Foreplay. I have pretty good synergy with a 103r through some MU step ups into the ASL with GT 12ax7m. But when the niehbor talks on the CB it sounds like my speakers are going to blow. God I hate that!
Follow Ups:
see if you can have a chat with him and he will most likely try to work with you to fix the problem. Maybe he can change how the antenna is grounded. Maybe he could relocate the antenna. That could depend on local regs from city hall.You could offer to help and perhaps he would provide liquid refreshments. You never know, you might strike up a friendship and get him into audio stuff. Invite him over to listen to you system so he will appreciate the quality of the sound.
A kind word could quite possibly yeild favorable results. You never know, he might have a "vintage" tube type cb!! If so, he'd appreciate the quality of your tube gear.
Hope that whatever transpires that you get the problem solved. Try the rf chokes like others have suggested. That will probably help.
Ok, apologies for the snide comment but it was just waiting....Seriously, though, the FCC in their Part 15 regulations that the source of the RF is the responsibility of the person in control of that source - your neighbor. After your attempts to work with them, you can appeal to the FCC's Enforcement Division. Check out the ARRL.org site for more details.
Your neighbor is over-modulating his radio and, most likely, has little or no grounding on the antenna, another source of grief. I'll bet he's popped the GFI recepticals in his house, if not yours, too, if its bad enough. If so, then you'll have the devil of a time getting rid of it without dealing with the source.
He's responsible for it, though.
Hope that helps.
Cheers,
Hm you know what? My GFI's are mysteriously tripped for no reason all the time. The guy is not even my next door nieghbor. He lives a block away. It's easy to pick out his house because of the big anteana. I did stop by his house one time because I overheard him talking (he was comming through my PC speakers loud and clear) about the possibly of frying the CPU in his computer with his CB. I wanted to let him know I didn't want my computer damaged. He offered to come over and put ferrite in my speakers. But I work wierd hours and my house is messy because I'm single and I don't want to clean it. So I didn't take him up on it. But it sounds like he is doing something illegal. His CB is interfering with alot of things. I will look at that link. Thanks.
You have it backwards. CB and amateur radio operators have NO resonsibility for interference if they are in compliance with FCC regulations. Almost all interference is due to the poor RF immunity of consumer electronics... they leave out RF filtering - a few cents saved per unit adds up!Even though they AREN'T required to, most hams will help eliminate interference. CBers aren't likely to know enough to help (and if they're using a linear, are in violation of the FCC regulations).
know a lot of CBer's do ya Tom? Don't know enough to help do they?? How do you get off making a comment like that? Most of the CBer's that I know are just as dedicated to their (our) hobby as audiophiles are to theirs (ours). I include myself in both groups.Now that the CB craze has thankfully died out and gotten rid of the no-manners novices there are mostly good people on the CB these days. The Smokey and the Bandit types gave dedicated CBer's a bad name and there are still a few of them around but the few exceptions don't disprove the rule.
Try going to Uncle Jim's CB site (google him) and check out the level of dedication. It just so happens that I not only use CBs but restore old tube type units. Some of those old tube units fetch quite a bit of money from enthusiasts who are also knowledgeable about radios and actually CARE about causing problems with their neighbors.
It's likely that he doesn't know that he is causing problems. If a neighbor doesn't complain there's no way that I would know that I am causing RF problems for him. Most CBer's will try to do whatever they can to fix the problem. I've purchased gear ($$$) for my base station just for the purpose of eliminating problems for my neighbors. He also might have a poorly designed/installed antenna (most common problem). Probably no ground plane, or poorly grounded, or both.
But anyway, give us a break. There aren't any more bad guys in the CB ranks than in the audio realm. Well, not too many more.
Agree, CB isn't what it used to be. And didn't say that CBers didn't CARE about interference, only that amateurs were more likely to be able to help. And amateurs are maore likely to CAUSE interference, with up to 1000 watts vs. 5 for CB.You gotta admit... 100% of Amateur radio ops have to pass a technical exam (not a very stringent one, I know...) and CBers don't. I think CBers who work on their own equipment are the exception still (though it's gotten that way for amateur radio too).
But really my point was that interference with AUDIO equipment isn't the radio operator's fault. TV, FM, MIGHT be, but usually that too is poor imuunity to out-of-band RF.
Tom, looks like we're 99% agreement. I agree that most of the CB guys don't know how to work on their radio. But then a modern Galaxy transceiver is quite a bit more complicated than an audio amplifier and has a good number of "non-servicable" parts. Spectrum analyizers are expensive but needed to do proper alignment and phase lock work. A multi-meter and an o scope won't cut it. Gotta have both an AF generator and a RF generator too.I will admit that all amature radio operators are SUPPOSED to take an exam. But any Joe Blow can buy a ham rig and an antenna so........
Lastly, you are certainly correct about the interference part. If one looks closely at most electronic gadgets there will be something in the manual (if not on the device itself) that says that in compliance with federal law the device MUST ACCEPT interference!!!! I've never understood that but that's the way it is.
Ah, gov'mint at it's best.
Neighbors CB. CBer using a high powered linear amplifier? This is a tough issue. Common capacitor bypassing at the effected gear to remove the interference is not good for a pristine audio signal. Are all cable connections tight? Bad solder connection in the amp? Poor connections act like a diode to RF and will demodulate AM on the CB transmitter carrier.Unlikely the signal is getting into the audio gear via the power cord, but a pair of .01 @ 1000VDC ceramic caps may help across the hot & neutral with each cap to the ground wire. No ground wire? The chassis may float up to 60 volts above ground with current in the micro amp range.
As a ham radio op, I agree with Tom. IF he's in compliance with FCC regs, it's NOT his problem. If he's overmodulating or using any linear amp, he is in violation of FCC rules.
To cure the problem, try winding all input / output leeds around some ferrite cores. These are available at Rat Shack.....you know, You've got questions.......we've got blank stares!
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