DRAG COILS.

We are thinking of trying a drag coil behind our quads and have been told that the 4500 and 5000's are too sensetive. has anyone had experience with these coils and be able to help with settings or the model of detector that will work the best ?

Gday, Im not sure whether this is correct or not but I was told lastyear that the SD2100 is ideal for this as they hold thier ground balance longer. Somebody who has used or is using a drag coil will be able to provide a more precise answer to your query. Cheers Evan

Hi Tricky,

From our experience the earlier model of detectors run these machines better as they seem to handle the size of the drag coils well.

I suggest a SD2200 as it has the Auto Ground balance - if you can get one that is. They are hard to come by as most people who have them keep them. The trouble with the 2100's is the manual GB - it can be a nuisance as each time you want to balance you need to get off the bike and raise/lower the coil on the ground to find the best spot on the GB.

From testing the GPX4000, it can handle the coil OK but it seems the 4500 and 5000 machines are not a match to the really big coils.

Now, i am sure there are a few out there who are using the later model detectors without much issue mainly because they are either
1. putting up with some extra noise and know they are hunting deep
2. Have secured the cable and coil so there is next to no movement from either part independent of each other.
Maybe they might also post to share their experiences.

If you can run a SD the I suggest using the higher voltage regulators as they will compliment the performance of the set up.

I have tried to place as much info on our site about the larger coils however you can always send me an email on ctmenquiry@coiltekmanufacturing.com.au as I have some set up photos which shows how some others have gone about the Drag coil.

Remember, the drag coil set up takes some time in getting right and needs a patient operator but can be profitable.
I hope this helps and best of luck!
Trevor.

Coiltek Manufacturing wrote:Hi Tricky,

From our experience the earlier model of detectors run these machines better as they seem to handle the size of the drag coils well.

I suggest a SD2200 as it has the Auto Ground balance - if you can get one that is. They are hard to come by as most people who have them keep them. The trouble with the 2100's is the manual GB - it can be a nuisance as each time you want to balance you need to get off the bike and raise/lower the coil on the ground to find the best spot on the GB.

From testing the GPX4000, it can handle the coil OK but it seems the 4500 and 5000 machines are not a match to the really big coils.

Now, i am sure there are a few out there who are using the later model detectors without much issue mainly because they are either
1. putting up with some extra noise and know they are hunting deep
2. Have secured the cable and coil so there is next to no movement from either part independent of each other.
Maybe they might also post to share their experiences.

If you can run a SD the I suggest using the higher voltage regulators as they will compliment the performance of the set up.

I have tried to place as much info on our site about the larger coils however you can always send me an email on ctmenquiry@coiltekmanufacturing.com.au as I have some set up photos which shows how some others have gone about the Drag coil.

Remember, the drag coil set up takes some time in getting right and needs a patient operator but can be profitable.
I hope this helps and best of luck!
Trevor.

Well thats really interesting Trevor would you consider posting the information you offered TRICKY on the forum for the rest of us?

Hi Artrix,
I would be happy to http://coiltekmanufacturing.com.au/40-20elliptical-drag.html

Thanks
Trevor

hi tricky
when it comes to connecting the coil to the bike, instead of making a frame as some do, try and get a
long bit of rubber and connect it up high on the bike so it goes down like a slide,and put the coil on the bottom
and the way the rubber raise's in front of the coil will make the coil go over any rocks instead of snagging.
this will protect your coil. the rubber will ware out, but just whack a bit more on


also ask a auto elec bloke about supressing the electrics on the bike so theres less interferance, i'm sure theres a way

cheers fencejumper

Coiltek Manufacturing wrote:Hi Tricky,

From our experience the earlier model of detectors run these machines better as they seem to handle the size of the drag coils well.

I suggest a SD2200 as it has the Auto Ground balance - if you can get one that is. They are hard to come by as most people who have them keep them. The trouble with the 2100's is the manual GB - it can be a nuisance as each time you want to balance you need to get off the bike and raise/lower the coil on the ground to find the best spot on the GB.

From testing the GPX4000, it can handle the coil OK but it seems the 4500 and 5000 machines are not a match to the really big coils.

Now, i am sure there are a few out there who are using the later model detectors without much issue mainly because they are either
1. putting up with some extra noise and know they are hunting deep
2. Have secured the cable and coil so there is next to no movement from either part independent of each other.
Maybe they might also post to share their experiences.

If you can run a SD the I suggest using the higher voltage regulators as they will compliment the performance of the set up.

I have tried to place as much info on our site about the larger coils however you can always send me an email on ctmenquiry@coiltekmanufacturing.com.au as I have some set up photos which shows how some others have gone about the Drag coil.

Remember, the drag coil set up takes some time in getting right and needs a patient operator but can be profitable.
I hope this helps and best of luck!
Trevor.

Hi Trevor and others

i have a few questions i am hoping those who have been there done that can help steepen my learning curve.

can you please elaborate on the proformace loss with the later model detectors i run a 4500? and dont want to shell out for a 2200 if i dont have to
I have read elseware a AI coil is the best option due to interferance from quad?
what settings would you run on a 4500 and a 2200 with a AI coil?
what do you mean by higher voltage regulators? is this a mod?

cheers

Hi Trevor
Good to see a manufacture of gold Equipment putting detail information about their Gear. Let hope more do the same.

Regards Geof.

Yes, very good to see a manufacturer offering some info here. We are in the process of making a skid plate to be towed behind a quad bike. We have a fairly long drawbar setup, about 10 foot long with the coil sitting on some heavy rubber matting similar to conveyor belt. we are currently trying to mount our 4500 on a plastic case enclosed in foam type material and that will sit halfway along the A frame setup. We will be using headphones with long lead so can hear signal while moving. The idea is to get the coil and the 4500 far enough away from the bike so no interference occurs. This is still in development stage but want it ready to take away with us next season. The quad we are using is a suzuki king quad 250. Age unknown but is in good cond. The coil is litz wire made to order and diameter 36" mono.
If anybody see's a problem with what we are trying to set up would be nice to hear as is a long way to travel to WA with this and find it will not work.
Cheers all and Merry Xmas to all readers
travelergold

here are some links to info I have found so-far please feel free to add to the list


https://www.youtube.com/watch?v=fi0FkeBHRrc&feature=mfu_in_order&list=UL

http://coiltekmanufacturing.com.au/40-20elliptical-drag.html

https://golddetecting.forumotion.net/t7277-coils-towed-behind-quad

[url=http://www.minelabmods.com/joomla/index.php?option=com_content&task=view&id=29&Itemid=40]

For tow coil detecting, an automatic ground balance is most preferable. Both VLF and PI can be used, however PI usually performs better in mineralised ground. This said,VLF may be more forgiving when it comes to interferance. (atmospheric, electrical, etc.) Diesel tow vehicle with alternater isolation switch will work well with PI system but may require efficient headphones and amplification. Conveyer belt as a base for the sled works well as it is heavy enough to press down low scrub and grass but does little if any damage, plus it is nearly indestructable. It takes a little getting used to as you only get one sweep over the target. If you want to get fancy,add a dye marking system so that you can mark your targets. Windscreen washer pump,a bit of wiring, switch, plasic tube, spray tip and some ag. dye. Otherwise mark each target with surveyers markers. This works out west where targets are far apart. Mono coils seem to be the way to go as DD's appear to have trouble with handling any more than a very slow speed. My experience with DD's is limited so someone may correct me in this regard. I hope that this is of help to some adventurer out there. Good luck.