northwest QED vs 4500
Welcome, Guest. Please login or register.
Friday December 13 2019 10:47:06 AEDT AM
Home Help Login Register
News: Welcome to the Australianelectronicgoldprospectingforum founded in July 2010, an add free totally independent forum with over 70 boards and paid for and managed by the Admin.Topics: 9,612  Total forum Posts:47,584 Members:866. Total page views:12,976,190  Admin and  forum and domain name owner :marjen at optusnet.com.au. Guests can only see a limited number of boards at present and cannot see any hot links. Guests cannot post and never will be permitted too!Registration of new members must be approved by admin.
 All  original Photos and posts and  original materials displayed on this site are COPYRIGHTED and remain the property of the poster and the  Austalian electronicgoldprospectingforum.com. All messages on this forum express the personal views of the author and should not be interpreted as necessarily being in accord with those of the forum owner and neither the owner of this forum and its domain name nor SMF or the forum software developers or the forum host shall be held responsible for the content of any message. Admin reserves the right to remove any offensive or objectionable posts. No defamatory material or politics/religion or issues of race will be permitted.
QED news
QED on facebook
link-https://www.facebook.com/groups/245308699667153/403446933853328/?comment_id=403472030517485&reply_comment_id=403476793850342&notif_id=1562580344994993&notif_t=group_comment
Interfacion Pty Ltd is pleased to announce that the QED PI Detector has been modified to allow the use of DD (double D) coils. This change involves a simple change to the electronics within the control box.
The firmware has also been upgraded to include a further improved Ground Balance.
All detectors being delivered to new customers from Monday 5th August 2019 will already have the above upgrades included.
As a show of commitment to all QED owners, the hardware modification to allow use of the DD and CC coils will be provided at no cost.
Of course and as per the QED warranty, the firmware update is provided free of charge, except for P&H.
Any QED owner who plans to attend the Laanecoorie Bash is encouraged to bring their detector along and have it upgraded at no cost.
Standard postage and handling arrangements apply to other owners. Send via Australia Post the box (minus batteries) along with a pre-paid, pre-addressed bag/box to:
Interfacion Pty Ltd
PO Box 106R
Redan VIC 3350
Howard Rockey
Director Interfacion Pty Ltd.

australian electronic gold prospecting forum.com  |  QED users  |  QED users (Moderator: bugwhiskers)  |  Topic: QED vs 4500 0 Members and 1 Guest are viewing this topic. « previous next »
Pages: 1 2 3 4 [5] Go Down Print
Author Topic: QED vs 4500  (Read 1074 times)
bugwhiskers
global moderator
Supreme Hero Member
****
Offline Offline

Posts: 2214



« Reply #80 on: Wednesday September 25 2019 17:12:54 AEST PM »

Try using a quality set of earphones as supplied with high end mobile phones.
Logged

All posts are my opinion and are stated without prejudice and in the public and consumers interest.
phrunt
regular members
Newbie
***
Online Online

Posts: 104


« Reply #81 on: Wednesday September 25 2019 20:01:51 AEST PM »

I'll give the headphones/sp01/qed combo a try.  happy face
Logged
Blip
QED users
Newbie
*
Offline Offline

Posts: 174


« Reply #82 on: Wednesday September 25 2019 20:20:09 AEST PM »

Simon, try one of the amps off Ebay.


  !2203!AU!-1
Logged
Blip
QED users
Newbie
*
Offline Offline

Posts: 174


« Reply #83 on: Wednesday September 25 2019 20:38:11 AEST PM »

  
  

Gary, personal experience with the external amp tells me that it only amplifies the sound not detection depth so it is easier to hear faint signals that otherwise maybe missed.


Thanks Al so being able to hear faint signals that may have been missed do we call that as producing extra detection depth then I suppose so if the Amplifier can further amplify the pitch change as BW mentioned with the use of a headphone.

Therefore the Amp combined with a headphone it may be possible to hear a faint target further away than the 25%-30%.

I expect the best way to verify would be on a faint target in the ground that can be detected while using the Amplifier then disconnect the Amp and check if the target can still be detected.

Gary.    

Gary, i have no idea on the SP01. Maybe Simon can enlighten us on this unit.

The beauty of what Howard is saying is you can hear more clearly those faint signals with the likes of earbuds and the amp. I just dont like headphones out in the bush. Some decent cordless earbuds with the amp and Quest and id be complete.

I was using the buds/amp when doing the air tests. I was going to do some more this arvo but ran out of daylight getting firewood. Tomorrow maybe.
Logged
phrunt
regular members
Newbie
***
Online Online

Posts: 104


« Reply #84 on: Thursday September 26 2019 04:54:27 AEST AM »

Hey Al, The SP01 is an enhancer and a booster, it uses audio compression and filtering to enhance the audio signal of faint targets while boosting the audio volume cleanly.  The idea is it can make really faint signals stand out more not from just boosting the volume but enhancing the audio.  I've found it to be an excellent product.  It's best used by having the detector volume quite low and letting the SP01 do the volume control as it's audio seems cleaner.   The SP01 works with some types of headphones on the QED. I tried this morning.  Previously I'd only tried my external GME SPK07's I use on my GPX and for some reason with the QED/SP01 they're extremely quiet, I guess the combination just doesn't have the power to drive them? I have no idea, Pat even made me a special cable to try in case the QED requires different wiring but it made no difference, still quiet.  Headphones on the other hand seem to work OK.

I guess it's the same reason my Koss UR30 headphones are quiet on the QED when directly plugged in but some other headphones are nice and loud, whatever is causing that is causing the SP01 to not work properly on the QED.  I think it's the impedance.  Lower Ohm gear seems to work better on the QED but that doesn't explain the GME external speakers as they're 7 ohm.

At the moment I'm satisfied with the little Logitech speaker, it's doing it's job and I love not being tangled in a mess of cords.
 
Logged
Blip
QED users
Newbie
*
Offline Offline

Posts: 174


« Reply #85 on: Thursday September 26 2019 07:49:35 AEST AM »

Thanks Simon, interesting on the SP01. I wondered.
Logged
phrunt
regular members
Newbie
***
Online Online

Posts: 104


« Reply #86 on: Monday September 30 2019 09:54:22 AEST AM »

I received a 15x14" flat wound (Spiral) X-coil today however the weather isn't playing ball with rain and snow on the forecast so I only had the opportunity to take it out for about 20 minutes near my house before the weather kicked in.

I didn't have an OZ 50 cent coin on me as I wasn't intending to do much other than see how well it performs but I found a bottle cap at a pretty crazy depth which I had  to dig with my hands/foot as I had no pick or anything with me so I figured I may as well show the depth it is able to pick up a bottle cap when I found another one near my car on the walk back to it, not very scientific but you get the idea.  This was the first time I've used this coil as it only arrived an hour or so before this video was taken.  The very edge of detection seemed to be about 43cm's.  Settings Mode 1, Gain 10, Threshold B 44 Threshold A 51 - The usual sort of settings I run on in my local soil conditions.  GB was left at default 150.

  
 
I have no idea how a bottle cap would compare to a 50c coin, I also wasn't doing this for any sort of comparisons or whatever... just seeing for myself how well it would detect this cap.  I didn't even try it before doing the video.

You'll see in the video at the edge of detection it sees it one going over it but not coming back but as I get a bit closer it gets it both directions.
Logged
Blip
QED users
Newbie
*
Offline Offline

Posts: 174


« Reply #87 on: Monday September 30 2019 12:18:49 AEST PM »

  
I received a 15x14" flat wound (Spiral) X-coil today however the weather isn't playing ball with rain and snow on the forecast so I only had the opportunity to take it out for about 20 minutes near my house before the weather kicked in.

I didn't have an OZ 50 cent coin on me as I wasn't intending to do much other than see how well it performs but I found a bottle cap at a pretty crazy depth which I had  to dig with my hands/foot as I had no pick or anything with me so I figured I may as well show the depth it is able to pick up a bottle cap when I found another one near my car on the walk back to it, not very scientific but you get the idea.  This was the first time I've used this coil as it only arrived an hour or so before this video was taken.  The very edge of detection seemed to be about 43cm's.  Settings Mode 1, Gain 10, Threshold B 44 Threshold A 51 - The usual sort of settings I run on in my local soil conditions.  GB was left at default 150.

  
 
I have no idea how a bottle cap would compare to a 50c coin, I also wasn't doing this for any sort of comparisons or whatever... just seeing for myself how well it would detect this cap.  I didn't even try it before doing the video.

You'll see in the video at the edge of detection it sees it one going over it but not coming back but as I get a bit closer it gets it both directions.

Mode 1, gain 10 for a 15”/14” coil is brilliant. I was getting that with the 11” Commander. Cant get anywhere near your GB od 150!

Id guess the cap would signal better than 50c. Im digging pretty decent depths for mild steel and the QED doesnt think much of the ‘5 bob’!

Will be interesting to see if X-coil make these coils for the market. I wonder how a CC coil in the 14”/15” range would compare!

Thanks Simon.

Logged
phrunt
regular members
Newbie
***
Online Online

Posts: 104


« Reply #88 on: Monday September 30 2019 12:40:58 AEST PM »

Hey Al, The GB of 150 I didn't even bother messing with as it was about to bucket down with rain, I am sure I can go a hell of a lot lower than that, it was just balanced as always when I turned it on.  I gave it a quick try on Mode 11 (no GB) and it worked pretty good, a very small bit of noise when I lowered the coil, none when I raised it, most certainly usable.  I think I'm going to really like this coil.  I guess if I was to get fussy I'd say 43cm is incorrect as when I put the tape measure at my leg I'd taken my shoes off which loses a couple of cm's :)
Logged
swaterhouse
Newbie

Offline Offline

Posts: 5


« Reply #89 on: Saturday October 5 2019 19:49:16 AEST PM »

Interrupting just to say this is excellent to read. I haven't owned a metal detector since I was about 7-9 years of age but have always had a passion in hunting for Gold/Relics and now being 26 here I am ready to go hard at it.

I've done over 30+ hours research on so many metal detectors and I've decided to get the QED PL2 because it simply flogs for the price and with the same capabilities once learned as any other high end GPX so it appears on a bunch of forums and videos.

I just decided to join this forum. I look forward to my purchase soon alongside with a SIMPLEX + so I'll be doing comparisons with a friend who has a GPX 5000, SDC2300 eventually as well in the coming months on multiple gold sizes here in Tasmania.

Logged
Blip
QED users
Newbie
*
Offline Offline

Posts: 174


« Reply #90 on: Sunday October 6 2019 01:13:40 AEST AM »

Hi Sam and welcome here mate.

Yep, good research will lead you to the QED.

Let er rip mate!
Logged
phrunt
regular members
Newbie
***
Online Online

Posts: 104


« Reply #91 on: Sunday October 6 2019 04:48:43 AEDT AM »

I'm in different soil to you obviously but I'd guess the QED with small coil would give the SDC2300 a good workout.  You may not need an SDC and just a smaller coil.
Logged
Pages: 1 2 3 4 [5] Go Up Print 
australian electronic gold prospecting forum.com  |  QED users  |  QED users (Moderator: bugwhiskers)  |  Topic: QED vs 4500 « previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2006-2009, Simple Machines
Simple Audio Video Embedder

BisdakworldClassic design by JV PACO-IN
Valid XHTML 1.0! Valid CSS!