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Old 03-07-2008, 08:21 PM   #15
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Quote:
Originally Posted by Stream 1529
Howdy Y'all

I've been looking at the Cobra CB that has everything in the handset for my Excursion. I like it because the main unit is allowed to fit anywhere under the dash, and therefore doesn't have to crowd the area nearer the driver. I know nothing about this radio's reliability, so I would welcome any input.

I already have a portable, roof mounted antenna. I have been thinking of getting one that is a permanent mount, but I've got questions. Where should it be mounted? When I got my first CB they installed a window type antenna. This worked until I hooked up the trailer. Once the trailer was in tow I lost reception behind me because of the trailer's height. Is there a permanent style antenna that, once mounted, may be unscrewed from it's base in the rare instance I treat the Ex to a "pro" car wash?

_________Tom
I have yet to set up my old UNIDEN in the Dodge. I have used this shop, at Exit 370 on Interstate 20 west of Fort Worth for a lot of years. Head straight up 281, you'll run right into him.

CLAYS RADIO SHOP
CB Radios including Motorcycle Intercom Systems

One or more of his employees have opened there own shop a few miles further west, they may be pretty good as well.

I have a huge triple magnet mount that I use on the roof with a fibreglass Wilson antenna. Good reception.

Also, some info on proper mounting. (Search your manufacturer for a TSB [technical service bulletin]

Mobile Radio Installation

TSB 08-16-98
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Old 03-07-2008, 08:33 PM   #16
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Good advice. Take it to a known good CB shop. In layman's terms, SWR equates to tuning the antenna so it does not reflect the transmitter energy back into the radio rather than sending it out on the "air".
Also the CB shop will verify that the connector is correctly installed on the cable, and that the antenna cable is correct for the application.
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Old 03-08-2008, 02:21 PM   #17
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I appreciat y'alls responses, and advice. I took the Excursion to a CB shop today, and learned some stuff specific to the Excursion. The antenna has to be a roof mount because of the way the rear doors open outward. The guy also told me I could get a 1000w antenna that is a magnetic mount, and that with my steel roof my range should be at least 10 miles. He also said the magnetic mount he was describing was tunable. Since he was waiting on a shipment, he didn't have any in stock. So, I go back in about 10 days to close the deal.

________Tom
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Old 03-08-2008, 03:38 PM   #18
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Got Your Ears On ?

Most important is your 'ground plane'
It makes everything work.

Before buying anything,
Find a local truck stop with a CB Shack.
They will usualy have some great deals on used radios. (you can get a new mike)
You will want then to tweek out whatever you end up with.
And they can tune antenna too.
The more knobs on radio the better it seems.
I have a lowly Cobra 21 pushing 14w.
Putting my shoes on gets it up to 250w.
(It will come over FM radios close by)

I centered mine in roof.
Really puts out and receives great.
(wall to wall and treetop tall)


This unscrews...


Under white tip is a adjustable length brass screw with lock nut. (typical)


Firestick, I'm at 13' 10"
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Old 03-10-2008, 08:18 PM   #19
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Ten mile reception .. during the day .. on a busy Interstate .. will be unlikely, even with an outstanding mobile rig. 2-3 miles is more common.

On the backroads, with no sunspot activity, 5-7 miles is not uncommon.

At night, with a good rig, you may then see those ten miles.

If the antenna referenced is a WILSON, then you'll be pleased with it. Just keep the coax away from vehicle power lines and don't let it get pinched.

If at all possible, power the radio directly from the battery (as in the TSB above). This will make an enormous difference. And be sure to ground the radio chassis.

I have, and recommend, a Turner/Telex "Roadking 56" noise-cancelling microphone. That or a comparable Astatic is the ticket.

Since buying all the pieces of mine ten years ago, and a single time on the bench to install some Connex 3300 finals, the radio has always checked out fine. I have moved it in and out of vehicles many times, and I always get compliments for this old Uniden 78.

Get a good rig and do the painstaking installation.

I use an earphone in my left ear to keep passengers from being bothered.
Alternatively, the best remote speaker location is on the dashboard firing up against the windshield (like the old AM radios from the factory); this keeps the voice in an optimum position for you to hear every detail.
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Old 03-12-2008, 10:09 AM   #20
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Quote:
Originally Posted by REDNAX
I use an earphone in my left ear to keep passengers from being bothered.
Alternatively, the best remote speaker location is on the dashboard firing up against the windshield (like the old AM radios from the factory); this keeps the voice in an optimum position for you to hear every detail.
The earphone is a great idea! I could use one of those on long trips where one of us is driving (and wanting to listen to CB) while the other one of us is sleeping (and not wanting to hear the CB chatter).
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Old 03-12-2008, 10:36 AM   #21
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what I want to know is how do you run a cable to a magnetic mount antenna? I thought the point of those was so you don't have to drill a hole....
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Old 03-12-2008, 11:14 AM   #22
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The coax exits from the side above magnet.
Sometimes they do more damage than drilling a hole.
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Old 03-12-2008, 11:28 AM   #23
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Quote:
Originally Posted by klattu
The coax exits from the side above magnet.
well, yeah, I figured THAT much.

guess I should've been more clear. Ok, now how do you get the cable to connect to the back of the radio?
and yeah, that cable just flappin' around out there...that can't be good.

I suppose using the example of a pickup truck, you could run the cable down the back of the cab, then under the body up forward to the engine comparment...then through the firewall into the cab. But that sounds like every bit as much of a pita as any other method of installing.
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Old 03-12-2008, 12:28 PM   #24
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Quote:
Originally Posted by Chuck
what I want to know is how do you run a cable to a magnetic mount antenna? I thought the point of those was so you don't have to drill a hole....
We run our cable out the bottom of a passenger crew cab door, then up in between the truck bed/cap and the crew cab onto the roof. Nice and easy...the cabling is mostly out of sight and out of the way and it makes it easy to remove when navigating thru a low-roof parking garage.

Inside the vehicle, the cabling runs under seats and carpeting into the back of the dash. I don't consider any of that process a PIA. I guess it depends on your point of view.
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Old 03-12-2008, 12:47 PM   #25
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Quote:
Originally Posted by yukionna
We run our cable out the bottom of a passenger crew cab door, ...
must get awfully breezey inside the truck, what with that passenger door being open while you're driving down the highway.

seriously...how's it get "out the door"?




Quote:
Originally Posted by yukionna
Inside the vehicle, the cabling runs under seats and carpeting into the back of the dash. I don't consider any of that process a PIA. I guess it depends on your point of view.
well...never done it. But I have run various wires through sundry crevices, and at least in my imagination, this "seems" like it would be rather frustrating. That, and perhaps the comments ("horror story") I received from a car-electronics installer on the subject of retrofitting my car with an aftermarket stereo, because "the cables had to be run under the carpeting from the back of the car to the dash".

You'll have to show me at "chilly-man".
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Old 03-12-2008, 01:06 PM   #26
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You have a sliding rear window in the pickup ? Mostest direct route from the roof to the cab. You'll need to seal up the little gap it leaves around the coax, but no biggy. Sometimes, you can get it up high into the rubber track and avoid the problem.

A strip of duck take on the roof will keep the coax it from flapping, although if you keep it snug, it won't be an issue.
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Old 03-12-2008, 01:29 PM   #27
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Quote:
Originally Posted by Chuck
must get awfully breezey inside the truck, what with that passenger door being open while you're driving down the highway.

seriously...how's it get "out the door"?
There is a small gap in the weather stripping. No breeze problem and no noise problem.

Quote:
Originally Posted by Chuck
well...never done it. But I have run various wires through sundry crevices, and at least in my imagination, this "seems" like it would be rather frustrating.
I'm not easily frustrated so I don't view that as a problem. It's a challenge...but I love challenges.
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Old 03-12-2008, 01:41 PM   #28
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Quote:
Originally Posted by B4WEDI
You have a sliding rear window in the pickup ?
yeah, I do. But again, I'm having a hard time picturing how the cable goes out the window, without the window being open all the time.

Quote:
Originally Posted by Yukionna
There is a small gap in the weather stripping
perhaps the same sort of thing? I never looked that closely. I just figured that the door would be so tight when closed, it would crush a cable that large.

They do have a fender mount gizmo that would be easier to install...but I'm not sure if the antenna would work as well in that position, due to "ground plane" and all that. the fender mount thingy is a sort of "Z" shaped bracket that doesn't interfere with the hood.
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