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SWR
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NeVeTaS
 


Member Since: 25 Mar 2009
Location: Eürope
Posts: 137

Isle Of Man 
SWR

If I ground my mount I get a higher SWR then if I remove the ground Question

It's a mirror mounted bolted onto the cross bars, I ran a ground from it to the chassis. Checked it was ground with a meter and it was. If I remove the ground the SWR gets better!

Whats that all about? Question  
Post #48455220th Jun 2009 7:17 pm
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matt_tdv6
 


Member Since: 05 Feb 2009
Location: Lincolnshire
Posts: 937

2006 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Leave the ground off then Whistle  
Post #48455720th Jun 2009 7:36 pm
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NeVeTaS
 


Member Since: 25 Mar 2009
Location: Eürope
Posts: 137

Isle Of Man 

Laughing Indeed

But all the cb web sites bang on about 'HAS to have a good grounding' etc

STRANGEEEEE Confused  
Post #48455820th Jun 2009 7:39 pm
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UNG
 


Member Since: 20 Jun 2008
Location: Lancs
Posts: 753

United Kingdom 

I think you need to check your antenna co-ax and your CB grounding sounds like a bad connection somewhere and your CB is achieving a better ground from the mount through the co-ax "Never keep up with the Joneses. Drag'em down to your level. It's cheaper".  
Post #48457720th Jun 2009 9:06 pm
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JMC
 


Member Since: 25 Feb 2006
Location: Aberdeen-Angus. Where the Bull* comes from!
Posts: 6417

Scotland 

The 'grounding' of the antenna is nothing to do with the electrical grounding to the -ve earth of the vehicle......... Shocked

If you google 'ground plane' you might get an idea, or you could just take my word for it - not that I know anything about these things........ Whistle The older I get, the more I realise that people confuse wrinkles for wisdom Smile
Founder member of Club FFRRV
Club Orange, Mint or Fruit
Club Walnut Sniffers
  
Post #48461920th Jun 2009 10:10 pm
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NeVeTaS
 


Member Since: 25 Mar 2009
Location: Eürope
Posts: 137

Isle Of Man 

Ohhhh, so trying to 'ground' my mount to the chassis is a waste of time then. I was getting confused between ground plane & earth.

If I touch my SWR meter when I'm testing the SWR goes down, so I just make sure I keep my hands away from it. Is that because when I touch it I am becoming part of the circuit or something? Is that to be expected?

Click image to enlarge
  
Post #48464020th Jun 2009 10:37 pm
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