CB SWR issues

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colskuse

colskuse

Member
Posts
21
Location
Stevenage - Hertfordshire
just moved my CB aerial from a gutter mount to a body mount but cant get the SWR out of the red :(

i have good eirth as i can turn the radio on when the aerial is connected but without the negative power connection.

i have tried to remove the roof bars to see if this makes a difference but no joy, the Gutter mount us to have a 1.2 SWR

any advice (i have searched but all i find dosnt appear to help)

Colin
 

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I had that, something about different potential between two earths, take the live n neg directly from the battery and try again ;)
 
OK, a few things here to try.

First off, take the aerial itself off and start measuring the cabling. Check outside of the connector to inner - should be infinite ohms. Check end-to-end on the inner conductor - should read very low ohms (at worst 1 or 2 ).

Has this antenna ever been used on a radio? Is it for the right band? Reason i ask is I've seen screwed-up packaging before that had the wrong antenna... :)

I suspect the cabling itself has a problem - internal short or something - and that is where I'dbe loooking.

Alan (WA1YHY)
 
Did you get it from Rocket Radio in Letchworth? They're generally quite helpful in there, even if you pop in with a query...
 
See if you can run a separate Earth from the mount to a six but of steel somewhere on the chassis/body.

Mine was like that but another earth got my swr down to less than 1
 
colskuse said:
all sorted now :) was a small thred of wire linking both poles at the antenna mount end. SWR 1 to 1.5 now :)
Click to expand...

So you had a short:p

Nice to see some CB guys here though I was never into CB. I am a licensed Amateur Radio Operator and will be installing an VHF rig for the local and neighbouring islands repeater and a multiband HF rig too.

I think I can get into the 11meter band and catch you guys from here :D

Is CB still popular there?
 
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