northwest What do think?
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australian electronic gold prospecting forum.com  |  Pi metal detector by Bugwhiskers  |  QED Detector ,latest updates  |  Topic: What do think? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: What do think?  (Read 3127 times)
Doug
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« on: Wednesday May 9 2018 14:46:23 AEST PM »

  
I think that i can see some serious flaws the video re the :QED.Does anyone else? eg I hear a very distinct threshold for the ZED but nothing for the QED even though  Rick was using an external amp. Other than  saying what modes and gain were tried I cannot see mentioned  others crucial settings eg like THA and THB.
doug smile
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« Reply #1 on: Wednesday May 9 2018 14:54:15 AEST PM »

  
  
I think that i can see some serious flaws the video re the :QED.Does anyone else? eg I hear a very distinct threshold for the ZED but nothing for the QED even though  Rick was using an external amp. Other than  saying what modes and gain were tried I cannot see mentioned  others crucial settings eg like THA and THB.
doug smile

Rick on another forum gives these as the settings
 THA 47, THB 60 GB106
doug smile
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« Reply #2 on: Wednesday May 9 2018 15:13:28 AEST PM »

  
  
  
I think that i can see some serious flaws the video re the :QED.Does anyone else? eg I hear a very distinct threshold for the ZED but nothing for the QED even though  Rick was using an external amp. Other than  saying what modes and gain were tried I cannot see mentioned  others crucial settings eg like THA and THB.
doug smile

Rick on another forum gives these as the settings
 THA 47, THB 60 GB106
doug smile
I do not think that his THA and THB settings are anywhere optimal for small nuggets!!!! In fact raising the bias to 60 will accentuate falling pitch targets (usually large targets ) over rising pitch targets (usually small)!! I don't think rick understands the connection between bias and volume!!!!!
doug smile
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« Reply #3 on: Wednesday May 9 2018 15:46:10 AEST PM »

Rick now says he wrote the settings back the front!
"Threshold A ( volume ) was 60, Bias ( Threshold B ) was 47, GB 106.
I wrote them back to front in my reply above !"
But the fact is i think the bias should lower for small gold and maybe the volume higher?
doug smile
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GARY
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« Reply #4 on: Wednesday May 9 2018 16:40:02 AEST PM »

  

But the fact is i think the bias should lower for small gold and maybe the volume higher?
doug smile


Yes I agree from my experience using an 8" mono although having a neutral THS-B (Bias) is something I have to experiment with.

Gary.
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« Reply #5 on: Wednesday May 9 2018 16:48:24 AEST PM »

  
  

But the fact is i think the bias should lower for small gold and maybe the volume higher?
doug smile


Yes I agree from my experience using an 8" mono although having a neutral THS-B (Bias) is something I have to experiment with.

Gary.

What bias and vol would you use with an 8" mono  with the external speaker?
doug smile
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GARY
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« Reply #6 on: Wednesday May 9 2018 17:08:14 AEST PM »

  

What bias and vol would you use with an 8" mono  with the external speaker?

doug smile

Well the last time I was out on my goldfield this year with my QED an 8" mono and Nokia external speaker I had the THS-B down at 38, THS-A up at 70 and GAIN at 4 and had no problems on my mineralised ground with the GB set above 100 although cannot remember the exact figure.  Also was in MODE 1 which suits my 8" mono and these settings for me produce my best depth on small gold.

Now that my QED is on its way back from the latest update those settings may change, I will have to wait and see.

Gary
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dasenator777
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« Reply #7 on: Wednesday May 9 2018 17:30:17 AEST PM »

i reckon his bias was too low for that coil in videio, should have been on 50 or above, my opinion only cheers
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« Reply #8 on: Wednesday May 9 2018 17:34:14 AEST PM »

The other silly thing  in Ricks video is that he starts the  QED  at its lowest gain of 1! Why would you start with the least sensitive QED settings?  If he thinks this is OK why did he not  run  the  ZED firstly in the severe ground setting? I think we all know the answer!!!
doug  smile
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« Reply #9 on: Wednesday May 9 2018 17:42:00 AEST PM »

i have put my same response to his low bias on every forum this video was posted on, as i think it is very one sided, we know he loves his zed, as a response from another poster on another forum,............ why dont you go out with reg wilson or peter pink and compare machines something dont add up there rick...... that said it all, my opinion only  smile
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« Reply #10 on: Wednesday May 9 2018 18:17:51 AEST PM »

  
The other silly thing  in Ricks video is that he starts the  QED  at its lowest gain of 1! Why would you start with the least sensitive QED settings?  If he thinks this is OK why did he not  run  the  ZED firstly in the severe ground setting? I think we all know the answer!!!
doug  smile
yeah i thought it was pretty stupid too....
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bugwhiskers
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« Reply #11 on: Wednesday May 9 2018 19:43:45 AEST PM »

  
  
The other silly thing  in Ricks video is that he starts the  QED  at its lowest gain of 1! Why would you start with the least sensitive QED settings?  If he thinks this is OK why did he not  run  the  ZED firstly in the severe ground setting? I think we all know the answer!!!
doug  smile
yeah i thought it was pretty stupid too....

I am disappointed I wasn't invited to the "show". He knows the $10,000 ZED inside out and I the same with the QED. That would have been fair and even more so considering I only live 20 minutes drive away.
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Prospector B
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« Reply #12 on: Wednesday May 9 2018 19:52:25 AEST PM »

I think he said in the video that null was 47 towards the end of the video, I think he did drop it to 46 but it sounded like it was unstable, if he still had the gain at 10 then I think this would happen. Its honestly not critical of the QED just highlighting it's not always as good as a Z, what I don't like is when reviews compare machines with different coils and conclude that one is better than the other, in my mind that's like comparing apples to oranges!

Since we're comparing apples and oranges, I reckon I could do better with the 11" default coil!
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GARY
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« Reply #13 on: Thursday May 10 2018 00:05:35 AEST AM »

  

.....what I don't like is when reviews compare machines with different coils and conclude that one is better than the other.....


Yes I agree although the Z's DOD type coil cannot be used on any other detector and it does not operate with a Mono or DD so I expect the best one can do is try to work out an equivalent size using a Mono or DD on any other detector, which in this case the detector was a QED for the comparison in the video and it operates with a Mono.

I also believe that if a video is to be used for test comparisons it should show all the detector settings on its screen and if they are being changed just before a certain or another test is performed.

And inviting witnesses along would be a good idea to negate any conflict of interest for in-ground type testing at different depths using nuggets varying in size and weight.
 
Gary.

 
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dasenator777
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« Reply #14 on: Thursday May 10 2018 02:48:48 AEST AM »

  
  
  
The other silly thing  in Ricks video is that he starts the  QED  at its lowest gain of 1! Why would you start with the least sensitive QED settings?  If he thinks this is OK why did he not  run  the  ZED firstly in the severe ground setting? I think we all know the answer!!!
doug  smile
yeah i thought it was pretty stupid too....

I am disappointed I wasn't invited to the "show". He knows the $10,000 ZED inside out and I the same with the QED. That would have been fair and even more so considering I only live 20 minutes drive away.
thats even more suss, seing you live so close
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bugwhiskers
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« Reply #15 on: Thursday May 10 2018 06:14:34 AEST AM »

I reckon Rick should come to my place (20 mins drive) and we will do the test again with me driving his QED. I will buy a GOPRO camera for the event. How about it Rick, are you in?
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« Reply #16 on: Thursday May 10 2018 09:22:45 AEST AM »

  
I reckon Rick should come to my place (20 mins drive) and we will do the test again with me driving his QED. I will buy a GOPRO camera for the event. How about it Rick, are you in?
hes not a popular boy on the other forums either, everyone onto him re coil and size, plus settings  excited
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dasenator777
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« Reply #17 on: Thursday May 10 2018 09:24:03 AEST AM »

  
  

.....what I don't like is when reviews compare machines with different coils and conclude that one is better than the other.....


Yes I agree although the Z's DOD type coil cannot be used on any other detector and it does not operate with a Mono or DD so I expect the best one can do is try to work out an equivalent size using a Mono or DD on any other detector, which in this case the detector was a QED for the comparison in the video and it operates with a Mono.

I also believe that if a video is to be used for test comparisons it should show all the detector settings on its screen and if they are being changed just before a certain or another test is performed.

And inviting witnesses along would be a good idea to negate any conflict of interest for in-ground type testing at different depths using nuggets varying in size and weight.
 
Gary.

 
agree totaly mate
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Doug
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« Reply #18 on: Thursday May 10 2018 09:41:19 AEST AM »

  
I reckon Rick should come to my place (20 mins drive) and we will do the test again with me driving his QED. I will buy a GOPRO camera for the event. How about it Rick, are you in?

Perhaps you could also offer to repeat the test with the same nuggets, at the same location with you driving the QED with the appropriate coil?
doug smile
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bugwhiskers
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« Reply #19 on: Thursday May 10 2018 10:11:30 AEST AM »

  
  
I reckon Rick should come to my place (20 mins drive) and we will do the test again with me driving his QED. I will buy a GOPRO camera for the event. How about it Rick, are you in?

Perhaps you could also offer to repeat the test with the same nuggets, at the same location with you driving the QED with the appropriate coil?
doug smile

That would work also. Meanwhile.... we wait for his response.
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australian electronic gold prospecting forum.com  |  Pi metal detector by Bugwhiskers  |  QED Detector ,latest updates  |  Topic: What do think? « previous next »
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