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Author Topic: Tuning a fiberglass CB antenna  (Read 5293 times)

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RockingDad

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Tuning a fiberglass CB antenna
« on: August 19, 2008, 08:36:13 PM »

Hi Everyone,

CB Installation nearly done except for the antenna tuning...unless my current readings are ok.

Put the antenna straight on (Firestik copy with wire coil, not tuning screw) and got readings or 1.4 on channel 1 and 2.5 on channel 40.

Took a fraction off the antenna (1/4inch or so) and small amount of cable and now it hardly if at all registers on channel 1 and 1.5 on channel 40. Is this right or should channel 1 be something like 1.2??

If I've taken to much off can I solder a bit back on or do I have to put a spring or something between the antenna and the mount to lengthen the antenna?

Driving me mad.

Cheers

RockingDad
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PtP

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« Reply #1 on: August 20, 2008, 12:02:35 PM »

As I recall you want the lowest SWR reading in the middle frequencies, but what you have, I would think is fine for just chatting between vehicles whilst laning and on play days etc.

Yon might get a more accurate answer by asking on a CB forum. Have a look here: http://www.citizensbandradio.org/e107_p ... /forum.php
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Peter

Mick O

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« Reply #2 on: August 20, 2008, 01:21:10 PM »

This may be of use  8-)
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I'm not a complete idiot.......................some bits are missing


AKA Jurassic O




BK

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« Reply #3 on: August 20, 2008, 02:37:42 PM »

drive up the motorway and ask a trucker for a rig check,thats what i did :-D
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RockingDad

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« Reply #4 on: August 20, 2008, 08:39:38 PM »

Thanks for the tips and info guys.

BK, what channel do he truckers generally use?

Cheers

RockingDad
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keeko

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« Reply #5 on: August 21, 2008, 04:00:44 PM »

Quote from: "RockingDad"
Thanks for the tips and info guys.

BK, what channel do he truckers generally use?

Cheers

RockingDad


 Channel 19 (the diesel digit)
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keeko

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« Reply #6 on: August 21, 2008, 04:01:12 PM »

Quote from: "RockingDad"
Thanks for the tips and info guys.

BK, what channel do he truckers generally use?

Cheers

RockingDad


 Channel 19 (the diesel digit)
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