northwest QED tips
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australian electronic gold prospecting forum.com  |  QED users  |  QED users (Moderator: bugwhiskers)  |  Topic: QED tips 0 Members and 1 Guest are viewing this topic. « previous next »
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Goldman
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« Reply #40 on: Wednesday March 20 2019 16:34:15 AEDT PM »

  
Found this question on Facebook.

Question: I always hear and read that you need to set the mode to suit the coil, how do you determine this?

Answered by Bugwhiskers: If the mode is too low for the coil then GB will be poor.

Gary.


To go even further with this, with some coils you just cannot ground balance below a certain mode number. For example, the lowest mode I can ground balance my 11" elite is Mode 3, whereas in WA I could not MGB my 15 round EVO below Mode 5. The 8" commander will MGB in Mode 1, same as the Sadie.


Cheers,
Goldman
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GARY
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« Reply #41 on: Wednesday March 20 2019 16:56:37 AEDT PM »

Good stuff to digest Goldman, Detection Holes, Modes & Coils.

In regards to Coils & Modes it would  appear the smaller the Coil the lower the Mode.

Gary.
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Goldman
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« Reply #42 on: Wednesday March 20 2019 19:26:24 AEDT PM »

Hi Gary,

I don't think there is a linear Mode progression based on coil size, but Modes 1-8 are for small coils; whereas 8-15 are for larger coils. But, and this is a big 'but', there is no reason you can’t use the higher modes with small coils especially if the ground is horrendous, as this may be the only way you can achieve a proper MGB and not be pinging off on all sorts of non-targets (e.g. ground noise, hot rocks and the like).
 
Let’s not forget that small coils are primarily for finding smaller gold. The TC of smaller gold is short (rising pitch) when compared with larger targets (falling pitch).
 
Modes 1-8 sample earlier to catch the faster decay thus 'find' the smaller gold. Modes 8 onwards sample later, thus you may miss the (very) small targets.
 
There is a progression of the sample delay time from Modes 1-15.
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Reg Wilson
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« Reply #43 on: Wednesday March 20 2019 22:22:58 AEDT PM »

Well Goldman, you do have the QED sussed, and know how to get the best out of it, unlike a certain 'expert' who thought he was too smart to learn anything new. The QED is a new ballgame, and applying the old rules and trying to make the detector adapt to your old habits is just dumb and doomed to failure. Smart people adapt, and prosper. Well done.
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bugwhiskers
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« Reply #44 on: Thursday March 21 2019 06:40:13 AEDT AM »

When turning the QED on just press the UP button once quickly.
If there is a fault with the coil the detector will try to shut down immediately but if the button is pressed for too long the fuse will blow.
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Goldman
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« Reply #45 on: Thursday March 21 2019 09:56:56 AEDT AM »

  
Well Goldman, you do have the QED sussed, and know how to get the best out of it, unlike a certain 'expert' who thought he was too smart to learn anything new. The QED is a new ballgame, and applying the old rules and trying to make the detector adapt to your old habits is just dumb and doomed to failure. Smart people adapt, and prosper. Well done.

Thanks Reg,
I have had mine from very soon after it was released and find it a pleasure to use. Howard has helped enormously in my understanding of how it works, especially in how the internals work, which can then be extrapolated into detecting our fantastic  gold fields.
I am just trying to share what I have learnt with the greater QED fraternity, but in the end, there is no better teacher than putting the hours in on the ground.
Cheers Goldman
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Doug
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« Reply #46 on: Thursday March 21 2019 11:07:54 AEDT AM »

  
  
Well Goldman, you do have the QED sussed, and know how to get the best out of it, unlike a certain 'expert' who thought he was too smart to learn anything new. The QED is a new ballgame, and applying the old rules and trying to make the detector adapt to your old habits is just dumb and doomed to failure. Smart people adapt, and prosper. Well done.

Thanks Reg,
I have had mine from very soon after it was released and find it a pleasure to use. Howard has helped enormously in my understanding of how it works, especially in how the internals work, which can then be extrapolated into detecting our fantastic  gold fields.
I am just trying to share what I have learnt with the greater QED fraternity, but in the end, there is no better teacher than putting the hours in on the ground.
Cheers Goldman


Your tips Goldman are so important and useful i think they should be incorporated in to the next version of the QED users manual.
doug smile
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Goldman
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« Reply #47 on: Thursday March 21 2019 13:27:41 AEDT PM »

  
  
  
Well Goldman, you do have the QED sussed, and know how to get the best out of it, unlike a certain 'expert' who thought he was too smart to learn anything new. The QED is a new ballgame, and applying the old rules and trying to make the detector adapt to your old habits is just dumb and doomed to failure. Smart people adapt, and prosper. Well done.

Thanks Reg,
I have had mine from very soon after it was released and find it a pleasure to use. Howard has helped enormously in my understanding of how it works, especially in how the internals work, which can then be extrapolated into detecting our fantastic  gold fields.
I am just trying to share what I have learnt with the greater QED fraternity, but in the end, there is no better teacher than putting the hours in on the ground.
Cheers Goldman


Your tips Goldman are so important and useful i think they should be incorporated in to the next version of the QED users manual.
doug smile

Yeah, I suspect they will be in the next manual, some already are in the current version.

Cheers Goldman
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Goldman
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« Reply #48 on: Monday April 15 2019 15:20:29 AEST PM »

As I have explained before in the manual, you will not be able to ground balance (MGB/AGB) out a target when testing a target by using the MGB +-4 Method. A ground noise however will either disappear altogether or diminish in volume when using the MGB +- Method; the target centre might also move, which is also another tell tale sign that the target is a ground noise.

Further to the above, a target will simply not disappear at all regardless of how far you move the MGB, up or down; even with the MGB at 001 (minimum) or 200 (maximum) the target response will not disappear, so have complete confidence in the MGB +- method.

I have often dropped the MGB by approx. 20 when detecting, just to make absolutely sure of a target - no sense digging unnecessarily.

I have tested this with a 5c coin (rising pitch) and a $2 coin (falling pitch) and with a small (.14 g) nugget and a 9g nugget and in both scenarios the targets remained loud and clear.

By the way, a 5c coin (rising pitch) is one side of the detection hole, whereas the $2 coin (falling pitch) is the other side of the hole. For a detailed explanation of the detection hole refer to a post in this thread where I have described how to test the hole for yourself and how to change settings if you believe a target is in the hole.

Cheers Goldman
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australian electronic gold prospecting forum.com  |  QED users  |  QED users (Moderator: bugwhiskers)  |  Topic: QED tips « previous next »
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