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12-09-2010, 11:03 PM | #526 |
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12-10-2010, 11:23 AM | #527 |
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Join Date: Dec 2010
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Unwanted radio noise question?
My radio in my Impreza makes a lot of humming noise. I have replaced the radio and still get the interference. Is there any filter or any reason why I might be getting this noise?
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12-10-2010, 01:46 PM | #528 |
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Join Date: Sep 2004
Chapter/Region:
MWSOC
Location: Licking County, Ohio
Vehicle:2005 2.5RS Wagon Regal Blue Pearl |
It's probably a grounding problem. Did you run a ground wire from the radio straight back to the negative terminal of the battery?
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12-10-2010, 04:26 PM | #529 | |
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Quote:
LOL. |
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12-10-2010, 05:10 PM | #530 |
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Join Date: Mar 2009
Chapter/Region:
TXIC
Location: San Antonio, TX
Vehicle:2004 Forester XT Cayenne Red Pearl |
I had the same problem and ended up giving up and returning the whole thing and scrapping the idea of having a CB in my car... I am interested to re visit installing one and doing it "right"
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12-10-2010, 05:43 PM | #531 |
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PS... would it be better to run the antena wire up the a pillar, across the roof and down the c pillar and into the trunk.... I had it go down the center console under the carpet and up the middle of the back seat and was getting a ton of buzz...
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12-19-2010, 12:42 AM | #532 | |
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Join Date: Feb 2010
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Location: Northern Indiana
Vehicle:2007 Impreza Blue |
Quote:
Also, anyone have good mounting ideas for a Rigrunner power distribution unit (http://www.westmountainradio.com/pro...s_id=rr_4004_c) and, perhaps, Kenwood TM-D710A in an '07 Impreza 2.5i? |
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12-19-2010, 12:46 AM | #533 |
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Generally, because the Realistic stuff is so poorly made that it doesn't meet the technical requirements for type certification into the Citizens' Band. That shows up every time you make a transmission. Not to mention that you wouldn't buy a Realistic unit if you really intended to stick to the legal limit and legal frequencies. It'd be a waste of money.
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12-19-2010, 12:53 AM | #534 | |
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12-19-2010, 01:01 AM | #535 |
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It's how the stuff is Type Certified. Each radio service has a different set of technical documents that define exactly what the radio must and must not do. That's why you don't get combo CB and FRS radios, for instance. The Amateur Radio Service has another layer of complexity. The commercial groups that use radio bandwidth constantly try to get the government to ban the ARS from portions of spectrum and allow them to use it for commercial purposes. There's been a decades-long fight to keep spectrum for ARS and to expand it into the new frontier of GHz frequencies. For reasons that defy understanding, a compromise was reached back in the day where nothing certified for ARS is allowed to participate in any other service and nothing certified for any other service is allowed to participate in ARS. Even commercial gear who's specs greatly exceed the requirements for ARS isn't allowed to be type certified for the ARS due to this stupid rule. This same issue is why you can't do anything business related, like use the radio to tell your boss you're going to be late for work, with any of the ARS radios.
The only thing I can think of is that the commercial lobbyists though that if companies had to make ARS-only radios, they'd decide not to do it because it wasn't a big enough market and the ARS would disappear and then they could grab the spectrum. Turned out waaaay different |
12-19-2010, 01:06 AM | #536 |
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I have a $30 Cobra Radio from Walmart..but I spent the money on a Wilson 1000 Mag mount antenna. Usually I mount it on the trunk and get a tuned SWR of around 1.2-1.3 (with a 10' extension on the Coax) and can pick up from a good range. If I want to be obnoxious, I put it on the roof and the range I can pick up from is just ridiculous.
Antenna and SWR meter > Radio ANY day of the week. |
12-19-2010, 01:12 AM | #537 |
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Location: Licking County, Ohio
Vehicle:2005 2.5RS Wagon Regal Blue Pearl |
Troof.
A 108" tall steel pipe planted on top of a disc of metal 108" in radius stuck way up in the air would allow you to talk nearly worldwide on the 4W dead key the CB allows. People in the ARS have an award for talking the most thousand miles away on a mW! All the antenna on your car is trying to do is to become as close as possible to that monster. |
12-19-2010, 11:36 AM | #538 |
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williaty, that is the first cogent explanation of the situation I've ever heard/read. Thanks for that.
So it boils down to "stupid politics." Disappointing. The one part here I don't get is that we are still allowed to repurpoae old public service radios (for example) for the ARS band (And oRigrunnerI am still looking for a place to mount my Rigrunner.) |
12-19-2010, 12:24 PM | #539 |
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Well, we, as licensed ARS users, are supposed to know how to stay out of trouble. That's one of the very special things about the ARS. So long as we follow the technical requirements, we're allowed to modify or make just about any toy to use that we want to. However, a commercial company can't do the same for a product they're intending to sell. So we get more leeway than a big company like Icom or Kenwood.
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12-19-2010, 04:09 PM | #540 |
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Vehicle:02 RAV4 MT 15 WRX/11 CRZ |
Years ago, ham radio gear either covered the 11m band directly or could easily be modified to do so from 10m. Because of the widespread practice of people illegally using this gear for high-powered transmission on CB, the FCC ruled that 10m-capable ham equipment made after a certain date (I do not recall the cutoff) would no longer be able to be so modified.
And yes, type acceptance is different for the different radio services, so even if it is technically possible to modify or program a radio from one service to work on another (i.e. an amateur portable on FRS/GMRS) you aren't supposed to do so. Hams are given some latitude as far as repurposing commercial gear for amateur service, but it doesn't work the other way around. |
12-21-2010, 03:10 PM | #541 |
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Finally got the CB installed.. have yet to tune the antenna though.
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12-23-2010, 06:18 PM | #542 |
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lmao. got stuck in traffic today for the first time. hilarious.. the cb has to be the best purchase for my car yet. going to get the antenna tuned next week
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01-01-2011, 04:22 PM | #543 |
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Join Date: Dec 2010
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I'm glad I saw this posting. I've been trying to figure out if there's a reasonable way to install my Connex 4300-400 in my '11 WRX 4 door. It was so much easier when cars had consoles thatdidn't meet the bottom of the dash...
Tommy |
01-22-2011, 11:23 PM | #544 |
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bump im interested
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01-23-2011, 07:46 AM | #545 |
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Vehicle:2006 Impreza Outback Black |
Sweet thread, need more pictures... I installed my Yaesu 8800 a while back with a Larsen 2/70B antenna. Next to the 8800 is my Alpine ipod controller. Now I'm trying to figure out how swap out the 8800 for my new Kenwood D710. The 710 has a much larger head unit. I need to do something about that metal bracket... |
02-21-2011, 12:37 PM | #546 |
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Location: Attleboro, MA
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im new to caravans and driving to meets, can anyone give me some advice as far as radio's and communicating with other members of the caravan? ive read Unibomber's manifesto, and there isnt a whole lot of information as far as which radio's are best.
as of right now, i own a couple Motorola 2 way radios with multiple channels capable of up to 1-2 miles i believe. are these popular with caravans? or do lots of people have CB radios? |
02-21-2011, 02:16 PM | #547 |
Scooby Guru
Member#: 71092
Join Date: Sep 2004
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MWSOC
Location: Licking County, Ohio
Vehicle:2005 2.5RS Wagon Regal Blue Pearl |
The single most common, and worst performing, radios for car convoys are the FRS 2-way radios you just mentioned. The next most common, and also next up the performance ladder, is the traditional CB radio. The least common, and best performing, is the amateur radio service (ham) radio.
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02-21-2011, 09:50 PM | #548 | |
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02-21-2011, 09:53 PM | #549 |
Scooby Guru
Member#: 71092
Join Date: Sep 2004
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Location: Licking County, Ohio
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CB radio is better because the technology in it works better for 2-way communication. Generally, that's also paired with better speakers and mics. Overall, it's just much easier to hear and be heard and the other people you're listening to are easier to understand. Yes, you can also use it to talk with other random people on the highway and get updates about things like road conditions and the location of the police. There's no such thing as a small antenna for CB that works worth a damn. The smaller the antenna is, the worse it's going to work.
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02-21-2011, 11:05 PM | #550 | |
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