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Author Topic: Techie question- Does the coil cover have a shield effect?  (Read 2677 times)
hedgehog
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« on: June 25, 2009, 07:48:53 AM »
My coil cover had been wearing thin on the sides and eventually fell off, was going to bring it home to repair it and totally forgot so it is still on the field many miles away.
I bought a new one and when I went out to the one field noticed straight away that there was a big reduction in electrical interference, so I was wondering if the coil cover would have a postiive effect in this way.
Any thoughts?
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DIGGA
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« Reply #1 on: June 25, 2009, 08:32:44 AM »
GOOD QUESTION MR HOG  AND THE ANSWER IS    I HONESTLY DONT KNOW   I SHOULDENT THINK IT WOULD MAKE MUCH OF A DIFFERENCE TO BE HONEST  BUT I AM SURE  THERE ARE PEOPLE ON HERE  WHO WILL KNO  AND ANSWER YOU   Grin Grin
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Richy
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« Reply #2 on: June 25, 2009, 08:58:26 AM »
Steve is it possible that mineralised soil was getting trapped between your old cover and the coil causing electrical interefence?
 Did you notice any signal improvement when the cover dropped off?
I bet that before fitting the new cover you cleaned the coil and thus removed any soil etc which could have been causing a problem. 
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hedgehog
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« Reply #3 on: June 25, 2009, 09:21:32 AM »
Good point Richy, it may have been that!
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the sutt
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« Reply #4 on: June 25, 2009, 04:33:00 PM »
hi hedgehog i had that problem a while ago
i started to clean my detector and scuff cover in warm soapy water
my detector works a lot better now take scuff cover off first ha, HA, HA .
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detectordave
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« Reply #5 on: June 25, 2009, 05:48:55 PM »
It happens quite a bit if you detect in sand,if you don't remove the coil cover it also can damage the coil as it acts like sandpaper.
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dragonsbreath(Paul)
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« Reply #6 on: June 25, 2009, 06:20:31 PM »
Totally agree with the above posts what happens is you are trying to ground balance
on the site you are detecting on but as you have residue left from your last site/beach
etc, inside the coil cover you then have two diff.types of ground you are trying to balance
at the same time hence the falseing you tend to get.
The answer has already been given remove coil cover and remove residue after each trip out and should be fine.
I do strongly reccomend you continue to use coil cover as its a damn site cheaper to
replace coil cover than a new coil because they will wear away without this protection.
PaulB. Cool
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bymatt666 (byron)
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« Reply #7 on: June 25, 2009, 06:49:26 PM »
i posted this tip some time ago......before you remove the cover soak it in warm water first......sometimes they break as they are taken off...the warm water makes them flexible long enough to remove safely
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Tafflaff (Rob)
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« Reply #8 on: June 25, 2009, 06:59:37 PM »
I take mine off quite regular and its quite surpising how much rubbish get under there. They're awful to get off on the dfx though, end up prising it off with a kitchen knife  Shocked
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simon c
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« Reply #9 on: June 25, 2009, 09:22:52 PM »
Don't know if it is just down to soil in the coil cover Steve,when i first bought the T2 it came with out the cover,so i started using it with out a cover,when i then bought and fitted the coil cover  i thought there was a difference in performance and i don't think its purley down to dirt inside the cover ?.
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viking
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« Reply #10 on: June 26, 2009, 01:32:36 AM »
nice tip there byron Grin Grin
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