bklein

Cool stuff! 

On 1/19/2023 at 8:18 PM, Carolina said:

No tool required. Only top soldering skills.

How did you get it open? Mine was not separating.

8 hours ago, mn90403 said:

If you can't show it at the beach, where are you going to SHOW IT?  A good looking body needs some sparkle.

Last year I saw a guy at Montage with the biggest gold necklace I’ve ever seen. Bigger than Mr. T’s. He actually saw me and called me over to see it. Gave me some hope but I am walking 4-6 miles in hunts and not finding anything. It all comes down to picking the right place at the right day and I’m stuck on an every other weekend kind of routine.  And I won’t hunt in the dark or crappy weather.

That original coil Sorieu connector is strange. I was looking at it to investigate the loose pins but couldn’t figure it out so I left it intact. I am not sure if I will succeed connecting a cable to one for an adapter - might need a special insertion tool etc.  Have you tried?

Well, I asked Alexandre and he says it could fry the circuit board to try GPX or TDI coils. I haven’t heard of this before as with a PI there are inherently high voltages involved that the design needs to tolerate. For sure there are several things an experimenter could do to cause damage - like misconnect it, have drastically different winding characteristics, or connect it with power on. I will eventually try my tdi beach hog coil - it works great on my GP Extreme and I hope on the AQ. I don’t have any interest in any of the other GP coils really.  

Mine had this issue. I repaired it, covered with heat shrink tubing, and wrapped with Kevlar thread. I don’t know WHAT the ML mechanical engineers were thinking with this cable!

I will be trying some of mine eventually. I don’t expect any issues. I think I asked about this elsewhere and got an ok to try. 

It would have made much more sense to get the design optimized before sealing it so it’s so difficult to make changes. Leave the water resistance problems to last. 

I rarely use my Dual Field or Surf PI detectors anymore but it never fails - when I want to the rubber slider thingy's break on the ear cups.  I have bought and installed replacements twice and same deal.  I wonder if someone perhaps has done a 3D printer solution.

On 6/6/2022 at 9:22 PM, Joe Beechnut OBN said:

Right now it hard times finding any cables. I can post a few links but not sure if they have.

 

https://www.mouser.com/c/?marcom=198111626

https://www.te.com/usa-en/product-CAT-C73765-M1.html

https://www.newark.com/c/connectors/sensor-connectors-components/sensor-cable-assemblies

https://www.onlinecomponents.com/en/productsearch/connectors/i-o-connectors/connector-circular/

https://www.automationdirect.com/adc/shopping/catalog/cables/sensors_-z-_switches/pico_(m8)_harsh_duty_-z-_food_-a-_bev._q-z-d_cables#sort=undefined desc&start=0

https://www.digikey.com/en/products/filter/circular-cable-assemblies/448

 

Which of these was the right angle cable on your battery?  That's a nice one.  The Automation Direct ones would work though.

I wonder why the headset connector has so many pins.  Isn't it just really two active ones for the audio?  I'm thinking of trying a APTX LL transmitter setup but wonder if it will hear the whimpers at 16".  Alexandre is recommending I use a better headset.

I have the Koss UR30... is it better?  

On 1/12/2023 at 12:18 PM, eclipse said:

Where can I find extra coils for the AQ? Are those even available for sale? I only have  the large stock coil.

I bought mine used and it came with the 2nd coil.  Call Fisher and ask for Art - see if he can help you.

It was interesting that the ANR chip in the bluetooth lapel mic I had tried before this (no posted video) would catch the target response while killing a lot of the threshold tone.  Kind of like the volume low level gain function in the CTX3030.

No rain today and I bought another microphone with no ANR chip so you can hear what I hear now. I’m using the 12.5” coil and stock battery this time. A little weaker in depth perhaps from earlier tries at this. I surely don’t see myself digging at things this weak.

I was noticing I was having to turn down the threshold a few times. It had me wondering - is this due to battery voltage dropping or my brain? Also I would come across areas where there was tone with every swing in one direction (see other thread) and I needed the ATS to go to 12 to get rid of it (there is no 12). Although the tx power and depth do seem to be regulated over the battery range I do experience the detector behavior change as the battery nears its low threshold. It gets noisier and has spurious bursts. As the OBN battery and stock have different discharge curves you may notice this more with the stock than the OBN. No big deal, just something I notice.

I really dislike having to change batteries in the field. The connector pins just seem to really want to corrode in the salt environment. I keep the spare battery in a ziplock bag but this is not good enough.  I wrap every connection with electrical tape so I have to remove this and save it to be reapplied. The detector may be wet from previous hunting. Just not good - but I shouldn’t be trying to hunt for over 5 hours when I’m not finding much…

I hope to add an APTX LL tx setup so I can eliminate the wired headphones. The stock phones are susceptible to wind noise and could stand to be a bit louder.

Found two rings and about a dollar in change. I found so many tent stakes that I went to tone mode. Right away I hit a goldish ring. No marks, not likely gold. As I was leaving the wedge area I tried the volleyball court and found the probably stainless ring. AQ worked great.

My first video of this thread shows that it seems to lose the EMI setting moving from All Metal to Tone mode. Maybe it loses Delay setting too? I don’t see a way to test Delay without opening it up and I’m not going to do that…  I’ll see how it does tomorrow at the beach but guys aren’t finding much, surprisingly. 

I’d like to see someone show how the delay setting modifies AQ behavior. I just don’t see it. 

I retried my test at the park during lunch today but technology failed me.  I was using a bluetooth attached lapel mic inside my ear cup.  It seems to have some kind of noise reduction going on that fails to register the constant threshold I can definitely hear.  (plus my talking is too muffled to understand) So you can hear when the signal exceeds the threshold level so it proves yes, my detector "sees" the targets at 16" but the recording doesn't give a correct representation of the audio so I'll have to record the audio another way. Although, yes I hear the nickel at 15" this way, I feel most tests I've seen others do showed a much stronger signature of the nickel at 16".  OBN your video does represent things much like I experienced and showed I definitely moved the target too fast and rarely outside of the coil diameter - a bad habit after doing this too long with impatience...  my bad.  

I want to get this audio recording figured out, because I often record short things I ask about in forums and the audio is just always poor.  Sometimes I use my iphone, sometimes an old gopro.

I’m all for it!  I hope we pin this down and I really don’t have an issue. I spoke with the tech that tested mine at Fisher today and will copy him with an updated video. As soon as the weather clears up I’ll give this another shot. I have a Bluetooth lapel mic that connects to my phone - I can stick this in an ear cup so the audio and threshold are better heard.  Regardless of the outcome I hope to be using it this weekend as there is supposed to be some good erosion at my beaches. And I finally got a negative Covid test after 3 weeks…

On 12/14/2022 at 4:34 PM, Carolina said:

Eva Shea ( pronounced ehh vah )

eshea@frsttx.com  (1-915-633-8354 ext. 1127

Try this. She will take care of you.

Just tried to talk with Eva and was advised she has retired and no longer with the company.

Art took my call and he will have a technician call me back and discuss the review of my machine.

On 9/1/2022 at 8:49 AM, Denny said:

Yes.  Also I hear music coming through the headphones  while using the tarsacci at the park.  It’s just a whisper doesn’t bother me. There are a few radio stations near by.  No way to correct this issue. My friends tarsacci does the same.  
May be the end for tarsacci. 
 

There are a couple things to try to eliminate the music depending upon access to the insides. Can it be opened or is it sealed?  You can get things called ferrite beads and slip them over wires leading to the wipers of audio-related controls. Unsolder the wire, slip over the wire, and solder it back. The  RF energy is being rectified and then amplified so you hear it. Some op amps  do this as well but I imagine swapping parts is frowned upon.

Plan to if this Covid will let me. Had it for 19 days.

Really the nickel test is all I’m concerned about as that’s what Fisher tests. You’ve already had better results than I have.

I deleted the high EMI depth test in the OOW thread and retested at an outside test site with basically no EMI. Results basically the same. I tried 7us, 11us, and varied ATS. Same results. (Replaced video with one from this new location)