Do i need filtering?

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bluestallion

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I have a ft 2800 radio in my buick. I also have a 3hole cig plug that is connected to radar detector, ipod, and acc lights. When i turn on the acceroies (all turn on with one switch) the reception on the radio gets kinda choppy. My 2meter,cb and accerioies are all connected to a side post 3 tab prong, each connecting seperatly to the battery. Was wondering since i have the wires all running along each other into the cab if they are interfering with each other?? Thank you to anyone that can help
 

zz0468

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Yeah, there might be some problem caused by running all the wires together, but I would start my unplugging the accessories one at a time to see if it's one particular item that's causing the noise. Once you've determine what the cause is, then you can think about how to go about fixing it.
 

LtDoc

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Filtering may, or may not be a 'cure' for your problem. Adding a 'filter' usually doesn't 'hurt' if it's not needed, so it's one of those "why not?" thingys. The linked filter isn't a bad one, but if you happen to be as 'cheap' as me, why not just make one? There's an article about making one of these power line filters floating around the internet, no idea where the site is though. Basically just a lot of wire wound around a ferrus core of some kind with a capacitor going to ground. I think the origin of this thing was dealing with fuel pump noises. The only 'picky' parts of making a filter is that the wire size has to accommodate the current put through the thing, and the capacitor's voltage should be 3 or more times the supply voltage. It amounts to a choke in line and a capacitor to ground. The coil stops any pulses or AC and the capacitor routes those pulses or AC to ground.
- 'Doc
 

SCPD

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Yeah, there might be some problem caused by running all the wires together, but I would start my unplugging the accessories one at a time to see if it's one particular item that's causing the noise. Once you've determine what the cause is, then you can think about how to go about fixing it.

Do this and you will be well off...


Maybe its just electrical interference?
 

LtDoc

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I think I've had at least one radio in every vehicle I've had in the last 100 years or so. One thing that I found that makes things easier is to run one large power line from the battery to the interior of the car/truck. That makes running separate power lines, or replacing one with a larger one unnecessary. Using a power distribution point inside the vehicle is also a very nice thingy. Just depends on how 'fancy' you want to get.
- 'Doc
 

N4KVE

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I can't remember if Yaesu uses the standard OEM T connectors but if they do then this might help:

Kenwood PG-3B Noise Filter
Years ago when I bought a Kenwood 741 radio, the power cable came with one of these hard wired in the assy. I kept it after I sold the radio. I can't tell if it worked or not because I've never has a whine with any car or radio I've ever had. However I kept the cord should that ever happen. GARY N4KVE
 

bluestallion

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Found out what was causing my interference. It was my charger/fm transmitter that plugs into my ipod. Guessing since it came from china, and was cheap, that it dont have any filtering built in like higher priced ones
 
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