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Just an update on EMI with the Sadie. I spoke with Howard and he said the QED was designed for use with the speaker, so with headphones youll hear every little wobble from ground noise and EMI. I can definitely hear it far more through headphones than the external speaker. To run comfortably THS...

Hey Aussiedigs, yeah null is definitely 45. Howard recalibrated a few things last week after resoldering the dry joint and it changed from 50 down to 45 in the process. I'll ask him to bump it back up to 50 if he's got the time. It's not a huge issue, but the usable window of THS B values has...

Thanks Northeast - it's great to hear you got it sorted. Null on my machine is 45. I was running gain 5, mode 1 today, although it didn't seem to matter if I raised or lowered gain or mode - it ran super noisy in all of them. I'll see if Howard might have another looksee...

I've been turning my phone off and I don't have a pinpointer. Wish I had another coil to test - one of those X Coil 6x12"s would be just the ticket right now. :)

Hmmmm..... something still sounds squiffy. SMF was at 50 and SMR at 107. No powerlines, electric fences or air taffic close by today, but there were a few houses within a 1 km radius. I did about 10 factory resets to try and figure it out, but the threshold warbled all over the place regardless...

I still haven't got the EMI situation sorted out on the Sadie. I can't seem to calm the wobbling threshold and spurious spikes in the areas I've been detecting regardless of mode, gain and SMR settings. This has quite an impact on its sensitivity to small gold. How do the Coitech Commander 8"...

Just a quick update on my misbehaving QED. Howard very kindly took a look at it during the week and found a dry joint on one of the components on the Rx side of the PCB. He resoldered it and the machine is now behaving properly - I haven't had to ground balance above 170 in any of the spots I've...

Ok, it sounds like somethings up with either the detector or the coil. Ill pop back to Wiltronics this week - fingers crossed it its an easy fix.

Thanks for the great feedback everyone. (I feel like I've possibly hijacked the discussion? Please feel free to delete or move this post if it's too far off the topic on best coils for the QED.) I went out again this afternoon to the same spot as yesterday (I think I've chosen the wrong place...

Thanks for the tips Mbasko. I'm still a novice at this (and will likely be for months to come). There are a couple of locations I've been prospecting where the machine just howls in some patches regardless of where the ground balance set, so I've just max'd it out at 300 and left it there. In...

Hi everyone. First time post here, so here goes. :argh: I've been soaking up everything QED on a bunch of forums for months now (Reg, your advice is golden!) and finally dived in a few weeks ago and bought one with a Sadie from Willtronics (423). I've been doing pretty well with it after being...