Cb aerial connection

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L4ndyTom

L4ndyTom

Active Member
Posts
217
Hi all,

Can anyone shed some light on the problem. I bought a female connector to attach to the coax wire and then screw into the aerial base. It is a clamp style connector rather than a solder one. I pulled back the braided metal and exposed enough of the live wire and then screwed it in, attached it to the aerial and turned the cb on. I thought I would pick up somebody chattering away but absolutely nothing. I'm relatively new to cb's but I didn't think they were that complicated. Am I missing something? Bad connection maybe?

Many thanks
 
Could be poor earth. Could be that the units on a Euro frequency (made that mistake myself). Or there is just no one talking! Cb is a dead format for the Nintendo generation!! Mine only gets used green laning.
 
Possibly I'll have to try it in the week. We use them when moving the forestry equipment. It is 40 uk and 40 eu. Would that make a difference?
 
Yep, they seem to come in euro40 by default. I had to programme mine so that it did UK as well. Read the manual?!
 
Right I got the manual. Adjusted it to uk 40 channel. Still getting noise and not picking up anybody at all. I live in the country so there is always somebody on. I have a feeling it is the connection to the aerial.
I took a mag mount off the end of the coax and put a male screw up type connector on. I twisted the outer wire around the neck of the outer plastic and then uncovered the inner wire making sure that has a good connection to the aerial. How have people connected there's? Frustration is starting build!! Lol.

Many thanks

Tom
 
You will need a good path to earth on it. I took a wire from the shield direct to the earth point on the bulkhead near the clutch reservoir that worked a treat.
 
hi , yes the euro default mode has got everybody i know lol. but i had a problem with the earth and the grounding of the ariel . the top part of the ariel needs to be insulated from the metal. but the coax needs to be earthed to the bodywork,roofrack etc hope this helps.

took me couple of days to realise i needed to put ruber washers above my mount bracket (it was homemade no instuctions/ clues) before i passed the ariel through .
 
It's bolted in just above offside rear window the usual place for work lamps etc. so if I wire the shield wire and take it down to the chassis or some earth of some description I should be alright?

Tom
 
A radio needs a ground plane. the chassis makes a great ground plane, the aluminium does not. If you can create an earth from the antenna to a chassis earth you will get a good reception and transmission range.
 
Cheers airways. Shall I take the earth straight off the shield wire? Or is there a place on the aerial connection I can run a wire off? The reason I ask is that both the shield wire and inner wire run into the male connector.

Cheers
 
I really need to see what you have done as I suspect you may have created a dead short which may be why you are getting no reception.
 
small picture . the bolt will get a good earth as long as you scrape the paint from the inside of the hole in bracket and underneath the hole.and also as long as its touching the coax connector.
hope this helps
 

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Cheers akitadefender. That may well come in useful tomorrow. Tomorrow I'll take a photo of the setup airways.

Cheers
 
Airways said:
A radio needs a ground plane. the chassis makes a great ground plane, the aluminium does not. If you can create an earth from the antenna to a chassis earth you will get a good reception and transmission range.
Click to expand...


What a complete load of BS..


Pray tell why metal made from Aluminium is so completely different from metal made of Mild steel????? insofar as radio wave propogation is concerned.

I had a cb and a 2mtr/70cm Ham Radio Transceiver. in the 90 CB antenna mounted above the O/S rear window Radio antenna mounted above N/S rear window (Both aluminium Panels) HAd an SWR of 1:1.2 on the cb and 1:1.5 on the ham radio. Absolutely no problems with ecieving or transmitting. on either set and never used or needed an additional earth strap..


Also if the body is insulated from the chassis I:E Rubber body mounts or corroded mounts then the body will shield the chassis and block or severly limit the signals..
 
Is everyone so rude on here?

An earth made to steel makes a better ground plane than an earth made to aluminimum. Whats so difficult to understand about that concept? I did not state that aluminium would not work as a ground plane, merely that the steel chassis makes a great one. Connecting the shield to the earth point on the chassis gives a a much better ground plane. Simple.

Our aircraft have a small steel ground plane mounting in order to improve radio reception.
 
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