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#751

Reg Wilson
Member
Joined: 06 September 2017
Posts: 170
Member
23 September 2018 12:23 pm

Crow Pickens, looks like you've got yourself a good little QED accessories business. I suggest you get in touch with Pete at Detech, as it would be good to see your products at the Laanecoorie Bash. I'm sure there is a market for your covers. Good luck with your venture.


Walmer Central Victoria
Began detecting 1979 Best colour 3Kgs Best patch 340 ozs.

2 users like this post: Tathradj, drbob

#752

Rush
Member
Joined: 22 May 2015
Posts: 139
Member
25 September 2018 02:34 pm

This is a diagram I modified from an existing diagram which maybe of some assistance to users.

1537846656_qed_ths-b_amp_ths-a_settings.jpg

Last edited by Rush (25 September 2018 02:38 pm)

4 users like this post: Dave79, drbob, Ship of fools, mbasko

#753

egixe4
Member
Joined: 13 February 2018
Posts: 14
Member
25 September 2018 09:11 pm

mbasko wrote:
golddigger dave wrote:

I really have no idea of the function of MODE and its effect on the machine.
Then comes Gain. What does Gain adjustment do to the mode setting?

Mode is simply the QED's pulse delay adjustment.
Pulse delay is basically the delay from when the current is sent to the coil to when it shuts off in milliseconds (us).
Low conductors, like smaller gold, have a short signal decay time (short delay) from the end of the transmit pulse and high conductors, i.e. silver, larger gold, have a longer signal decay time (longer delay). This means that using a lower pulse delay (mode) is better for low conductors.
I was told awhile back the modes on the QED start at 8us & go up about 0.4us each mode increment? I.e. mode 1 is 8us; mode 2 8.4us & so forth thru to mode 15. Not sure about mode 16 (Beach mode) but would think it could likely be around 20us. Don't know if these are the correct starting us & increments as haven't seen anything official on the values from Howard but they will help explain what you are asking here regardless. Basically the lower modes are better for smaller coils chasing smaller gold.
If the above figures are correct (or close) it means that the QED pulse delay is set relatively low right through the modes which explains why it remains sensitive even in higher modes.

Hi mbasko,

Your description of mode is pretty much spot on thumbsup

Mode 1 is around 7µs - Mode 15 is around 15 µs (From Howard)

Also of note, some coils perform better at a lower Mode than others over the same ground
For instance my
8” Commander runs nice at mode 1
Where a similar size NF need's mode 5

1 user likes this post: mbasko

#754

egixe4
Member
Joined: 13 February 2018
Posts: 14
Member
25 September 2018 09:17 pm

Aussiedigga wrote:

Anyone tried a large coil say like a 18 inch on the QED , I believe from what I have read the QED only seems to operate well on certain coils , would be good to find out what works well and what doesn't

I use an 18" NF Advantage open spoke, runs awesome on the QED perfect
and yes it's found it's fair share of Gold.

#755

Tathradj
Moderator
From: Tathra, NSW
Joined: 17 February 2014
Posts: 7,673
Moderator
25 September 2018 09:23 pm

Looks like the NF coils are the best match.
I have a collection of them and about to add
one more.


A couple of HiBankers inc. accessories, , QED, 4500, SDC2300, Gt1600,
Aldi, A Prado 4x4, A'Van Cruiseliner and a heck of a lot of determination.
Most importantly, A lot of Good Honest Friends. Maybe one day Lucky.

#756

egixe4
Member
Joined: 13 February 2018
Posts: 14
Member
26 September 2018 12:22 am

For a mid size coil the 14" Coiltek Elite is also outstanding on the QED.
Both Reg and Jr have done well with Elite's
I've not been happy with my NF 17x13 on the QED

#757

Rush
Member
Joined: 22 May 2015
Posts: 139
Member
26 September 2018 10:05 am

The thing that annoys me the most about the Evo coil is trying to pinpoint and visualize the position of a small target under the coil due to the flat wound windings. I expect the same problem exists with the Elite and Detech as well.

Last edited by Rush (26 September 2018 10:06 am)

#758

golddigger dave
Newbie
Joined: 05 November 2017
Posts: 6
Newbie
26 September 2018 02:47 pm

Pinpointing with large Coils
This is where you have a dual head machine and you flck over to your pinpointer coil.

#759

egixe4
Member
Joined: 13 February 2018
Posts: 14
Member
01 October 2018 01:44 pm

Rush wrote:

The thing that annoys me the most about the Evo coil is trying to pinpoint and visualize the position of a small target under the coil due to the flat wound windings. I expect the same problem exists with the Elite and Detech as well.

Hi Rush,

I also have problems pinpointing with the EVO, but strangely, don't have the same issue with the 14" Elite.
Not used the Detech Mono's yet so can't comment on those.

Mal

#760

Ded Driver
Member
From: West of the Border, WA
Joined: 27 May 2018
Posts: 390
Member
01 October 2018 02:27 pm

egixe4 wrote:
Rush wrote:

The thing that annoys me the most about the Evo coil is trying to pinpoint and visualize the position of a small target under the coil due to the flat wound windings. I expect the same problem exists with the Elite and Detech as well.

Hi Rush,

I also have problems pinpointing with the EVO, but strangely, don't have the same issue with the 14" Elite.
Not used the Detech Mono's yet so can't comment on those.
Mal

my plan for my next outing is to have my son following up behind with the baby 5" DD coil on the Monster for pinpointing
that should keep him focused lol


APLA member, ML GPX 4000, ML SD2100, ML Xterra 705 Dual Pack, ML GM1000, sP01 Enhancer, Garmin GPSMAP 64S, kti PLB, a map, all sorts of coils & a cupla buckets full of hope & enthusiasm

#761

Rush
Member
Joined: 22 May 2015
Posts: 139
Member
01 October 2018 08:50 pm

My mate with a 5000 told me he tired using his Pro-Find 25 pinpointer to pin point while using his Evo however he would have to switch the 5000 off as the Pro-Find 25 caused interference once he switch it on.

I wonder if the Pro-Find 35 produces the same problem?

#762

Reg Wilson
Member
Joined: 06 September 2017
Posts: 170
Member
01 October 2018 11:30 pm

How about Pro Find or any of the other brand pinpointers and QED? Any experiences? Lost my pinpointer some time back, and are yet to replace it.


Walmer Central Victoria
Began detecting 1979 Best colour 3Kgs Best patch 340 ozs.

#763

Rush
Member
Joined: 22 May 2015
Posts: 139
Member
02 October 2018 01:12 pm

Reg Wilson wrote:

How about Pro Find or any of the other brand pinpointers and QED? Any experiences?

Just tested my QED with 11" Commander in the back yard with a Pro-Find 25 switched on and it appeared to create NO interference to the QED.

Last edited by Rush (02 October 2018 01:18 pm)

#764

egixe4
Member
Joined: 13 February 2018
Posts: 14
Member
02 October 2018 02:03 pm

I can also confirm the findings above, My Pro-Find 25 does NOT bother the QED.

But the same can't be said with my 5000, the Pro-Find 25 does not play well with the 5000 regardless of the coil fitted to it. thumbsdown

Mal

#765

Rush
Member
Joined: 22 May 2015
Posts: 139
Member
02 October 2018 10:10 pm

I see another instructional video (VI 13) for the QED has been produced as an alternative way of checking and Re-GB'ing while detecting with the QED.

https://www.youtube.com/channel/UCCRTuk … kaon2JwImQ

Last edited by Rush (02 October 2018 10:11 pm)

#766

mbasko
Member
From: Central West NSW
Joined: 27 January 2015
Posts: 3,406
Member
13 October 2018 08:58 am

Reg Wilson wrote:

How about Pro Find or any of the other brand pinpointers and QED? Any experiences? Lost my pinpointer some time back, and are yet to replace it.

I have used my cheap but ok MARS MD pinpointer without any issue with the QED Reg (other than the usual when too close to each other). The MARS MD doesn't have the bells & whistles of other pinpointers but does the job in big holes. I rarely use them though hence buying a cheap, basic unit rather than the Pro Find etc.


Everything we use comes from mining or farming.

#767

mbasko
Member
From: Central West NSW
Joined: 27 January 2015
Posts: 3,406
Member
13 October 2018 09:12 am

Rush wrote:

I see another instructional video (VI 13) for the QED has been produced as an alternative way of checking and Re-GB'ing while detecting with the QED.

https://www.youtube.com/channel/UCCRTuk … kaon2JwImQ

Be interested to see what people think of this method.
Seems unconventional in that it's basically teaching to lift the coil at the end of the coil sweep - something that I try to impress on people not to do.
Without having tried it I don't think it's an ideal solution & leaving the GB screen open to balance on the run conventionally would still be just as quick + better IMO. Like said though haven't tried it so interested in how current QED owners find it.


Everything we use comes from mining or farming.

#768

Reg Wilson
Member
Joined: 06 September 2017
Posts: 170
Member
13 October 2018 10:45 am

This method actually works, although I don't use it myself. Experimenting with the tow coil was interesting. I set up the control panel so that I could adjust settings while in motion, and listened to the coil moaning in response to being out of balance. The complaining tone was then adjusted either up or down. The pitch would change until a quiet balance was achieved, and run surprisingly smooth, even without auto ground tracking.
At Laanecoorie I showed Howard a quick method of eliminating very hot false signals. He found a signal that sounded very much like the real deal, and declared he would dig it. This was not an 'iffy' signal but was strong enough to indicate it could be a color of 10 grams or so if it was the real deal. Checking the ground balance adjacent to the signal verified that the machine was indeed balanced. I then passed the coil over the supposed target and it gave a very strong response. Tilting the coil very slightly (10 degrees or less) I swept it back over the target. Gone. Completely gone. I then put a color on the ground nearby and passed the coil over it, getting as you would expect, a strong signal. Passing the tilted coil over the color made no difference to the response. Strong signal. Increasing the coil angle by quite a bit still made no difference to the strong coil reaction, and even more tilt had the same result.
I would suggest this method only be used for very strong signals, and small soft ones need to be conventionally treated.


Walmer Central Victoria
Began detecting 1979 Best colour 3Kgs Best patch 340 ozs.

1 user likes this post: mbasko

#769

Northeast
Member
Joined: 27 August 2016
Posts: 758
Member
13 October 2018 11:43 am

Interesting Reg.

I suppose the big question I would have about the tilt method is that “is the tilt actually losing what is a genuine target”?

Did Howard end up digging the signal just to check?

Is the tilt method something you’ve tried with another brand of detector?

Thanks thumbsup

#770

Reg Wilson
Member
Joined: 06 September 2017
Posts: 170
Member
13 October 2018 02:07 pm

As I have stated; "only to be used for very strong signals". Why don't you do some testing yourself? That way you will know from your own experience. Let us know how you get on.


Walmer Central Victoria
Began detecting 1979 Best colour 3Kgs Best patch 340 ozs.

1 user likes this post: Northeast

#771

Northeast
Member
Joined: 27 August 2016
Posts: 758
Member
13 October 2018 07:36 pm

Good plan Reg.

I’m coming across tomorrow for 4 days. I’ll give you a call tomorrow thumbsup

#772

grumpygold
Member
Joined: 31 October 2018
Posts: 22
Member
31 October 2018 12:33 am

any body know if dd coils work on this machine thanks perfect

#773

petere
Member
From: Portland Vic
Joined: 12 August 2014
Posts: 53
Member
31 October 2018 11:55 am

Some info at this link
http://australianelectronicgoldprospect … n-the-qed/

#774

grumpygold
Member
Joined: 31 October 2018
Posts: 22
Member
01 November 2018 01:51 am

thanks mate plenty info there your a legend

#775

grumpygold
Member
Joined: 31 October 2018
Posts: 22
Member
05 November 2018 07:34 pm

some pretty nice gold pics and vids over on suggested forum thanks again wink


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