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CB Radio / In car comunication
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Slimer
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Member Since: 06 Jan 2005
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Posts: 16295

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SWR meter is just for tuning, there are no settings to remember
Don't leave it in all the time as every connection degrades the signal slighty, if you leave it in-line that two extra connections you don't need
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Post #34241310th Sep 2008 8:39 pm
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Slimer
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Member Since: 06 Jan 2005
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So follow my instructions......

Slimer wrote:
1. Put CB on channel 1
2. Put switch on SWR meter in FWD position
3. Key mic and adjust so needle is on far right of scale then de-key mic
4. Put switch on SWR meter in REF position
5. Key mic and take reading then de-key mic
6. Put CB on channel 40
7. Repeat steps 2-5

If the reading is higher on channel 40 than 1 you need to shorten the antenna (lengthen if 1 is higher), take a bit off at a time and retest on both channels. Ideally you want a 1:1 SWR, not always achievable though, get it to at least 1:1.5 or below if possible. Whilst tuning if it starts to go up on the channel that had the lower reading stop, you're not going to get a better reading with the set-up as it is. Length of coax also affects SWR so don't go changing that after you've adjusted the antenna


Ignore the bottom scale, the top one's the one you should be using
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Post #34241710th Sep 2008 8:42 pm
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MacLeod 313
 


Member Since: 18 Apr 2008
Location: away
Posts: 10723

Scotland 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

ok, so if its for tuning what needs to be adjusted. I did plug it in earlier and it went off the scale, I turned the calibration till it went to the set mark. Reluctant to use it at the moment as unsure if its doing damage, and whats the recommended channel to be on. It came to me already set to EU which includes UK, but can select UK.

SWR meter pic's front and rear in Gallery, cannot even work out how to post a picture in the listings Banging Head
  
Post #34242010th Sep 2008 8:44 pm
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MacLeod 313
 


Member Since: 18 Apr 2008
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Scotland 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Was typing while you was looking in Gallery, so its as easy as you previously told me.......when I did the second calibration on REF, the needle moved no more the a couple of millimeters.
  
Post #34242410th Sep 2008 8:46 pm
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JMC
 


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

Scotland 

If your antenna is a dedicated CB item then you shouldn't have much of a problem. SWR meter is simple to operate and Slimers description of how to use it is ideal. If it comes up with less than 2 then you will be fine.

FWIW, the SWR reading is a measure of how much RF power is actually being radiated from the antenna and how much is being fed back into the transceiver (not good). 1:1 is perfection and not really achievable. Less than 2:1 is OK. If the needle goes beyond 3:1 then something isn't right.
 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 #34242610th Sep 2008 8:47 pm
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JMC
 


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

Scotland 

jcbdigger1970 wrote:
when I did the second calibration on REF, the needle moved no more the a couple of millimeters.

Loose the SWR meter and sleep easy Thumbs Up
 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 #34243210th Sep 2008 8:49 pm
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Slimer
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Member Since: 06 Jan 2005
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Yep, if it's that or similar on 1 & 40 unplug the meter and leave it all alone, in fact leave it alone anyway, sounds like it's fine and we'll double check at the next SE meet Thumbs Up
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Post #34243810th Sep 2008 8:51 pm
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MacLeod 313
 


Member Since: 18 Apr 2008
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Scotland 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Cheers guys, its just when you aint sure and being told I may damage the unit if not SWR'd worries me.................Maybe the guy I bought the whole package from was just trying to add a sale.

So tomorrow I will set it to UK, and give it a go.

Guys, many thanks Thumbs Up
  
Post #34243910th Sep 2008 8:53 pm
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captain_sugar
 


Member Since: 05 Sep 2006
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Czech Republic 2014 Discovery 4 3.0 SDV6 HSE Auto Scotia GreyDiscovery 4


The antenna in the middle of the roof will have good connection!
 Some people get by
With a little understanding
Some people get by
With a whole lot more
I don�t know
Why you gotta be so undemanding 
 
Post #34244710th Sep 2008 9:05 pm
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JMC
 


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

Scotland 

Shocked Shocked Shocked

Is that a telegraph pole in the middle of the roof? Laughing
 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 #34244810th Sep 2008 9:06 pm
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MacLeod 313
 


Member Since: 18 Apr 2008
Location: away
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Scotland 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

I thought somebody would notice the telegraph pole, I just knew it............ Rolling with laughter
  
Post #34245410th Sep 2008 9:11 pm
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MacLeod 313
 


Member Since: 18 Apr 2008
Location: away
Posts: 10723

Scotland 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Uncles Ray's bracket arrived this morning, very tidy nique design. Very impressed Thumbs Up
  
Post #34258911th Sep 2008 11:11 am
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Ken
  


Member Since: 20 Feb 2006
Location: Here
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With any luck Ray is working out a Bracket for the full fat Thumbs Up
  
Post #34260411th Sep 2008 11:38 am
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MacLeod 313
 


Member Since: 18 Apr 2008
Location: away
Posts: 10723

Scotland 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Shame on you Ken, mine is in the process of drying, Hammerite Black Thumbs Up
  
Post #34326312th Sep 2008 6:15 pm
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MacLeod 313
 


Member Since: 18 Apr 2008
Location: away
Posts: 10723

Scotland 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3



Uncle Rays bracket all fitted, much stronger and looks great now I Hammerited it. Cheers Ray Thumbs Up
  
Post #34514517th Sep 2008 12:45 pm
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