Member Since: 10 Nov 2008
Location: Bomber County
Posts: 4547
Very high SWR
Been trying my CB today after picking up an SWR meter at LRO, but getting readings up around 5 on all channels no matter what I do with the whip, so assume it's a groundplane/ earth issue.
I have an RLD mount on the roof rail. The mount is coated in black powdercoat, do you think I need to strip it off where the dome mount bolts on in order to get a better connection?
Has anyone else had any problems and how did you solve them?
Cheers 2014 D4 XS
2005 D3 SE - Gone
11th Sep 2012 6:30 pm
CUCO
Member Since: 27 May 2011
Location: Spain & Oleee!!!
Posts: 609
Try a simple lead to a neg post before stripping or getting nicked anything
Member Since: 10 Nov 2008
Location: Bomber County
Posts: 4547
Yep it's having the SWR meter on that has lead me to think there is an earth/plane problem as the reading is 5 no matter what I do with the aerial 2014 D4 XS
2005 D3 SE - Gone
12th Sep 2012 7:34 am
marco 110
Member Since: 15 Nov 2009
Location: SALLES 33
Posts: 1014
J@mes wrote:
Yep it's having the SWR meter on that has lead me to think there is an earth/plane problem as the reading is 5 no matter what I do with the aerial
ok
So , try this :
Quote:
Try a simple lead to a neg post before stripping or getting nicked anything
CUCOMarco.
-D4 sdv6 HSE 2012 , high beam assist , surround cam, tv , and a lot of nice stuff..
Member Since: 10 Nov 2008
Location: Bomber County
Posts: 4547
Right, I have added a 4mm earth from the aerial dome mount to the battery and it has made quite a difference, combined with uncoiling the coax inside the car. It's still a bit high, but the reading on 40 is lower than the reading on 1, telling me the aerial needs to be longer. Unfortunately it is as long as it will go as when trying to "adjust" the aerial yesterday I lopped around 2 inches off the top and obviously I couldn't afford to lose those two inches
So, new orbiter tomorrow and try again! 2014 D4 XS
2005 D3 SE - Gone
12th Sep 2012 5:41 pm
J@mes
Member Since: 10 Nov 2008
Location: Bomber County
Posts: 4547
Mount moved to back of car, earth put to the point on the tailgate, coax re-routed in the car again and an SWR of 1.4 on Channel 1, 1.5 on 20 and 1.6 on 40 2014 D4 XS
2005 D3 SE - Gone
17th Sep 2012 8:06 pm
marco 110
Member Since: 15 Nov 2009
Location: SALLES 33
Posts: 1014
Radio waves belong to you! Marco.
-D4 sdv6 HSE 2012 , high beam assist , surround cam, tv , and a lot of nice stuff..
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and obviously I couldn't afford to lose those two inches 
