Jump to content

Recommended Posts

First let me say new to this website. And thanks for having me. Hello to all.

My AQ question is can I tell the depth of the Target by the strength of the tone. 

Does the strength of the get weaker as the target gets deeper. On equal sized targets

Thanks Gman

Link to post
Share on other sites

Yes,  the audio is modulated, the stronger the target’s return signal, the greater the audio intensity. The strength of the return signal depends on the target characteristics including the distance from the coil (depth) composition, form factor and mass.

  • Like 3
  • Thanks 1
Link to post
Share on other sites

 

Welcome! To the forum..

Yes, deep targets are just a glitter ...as your getting closer.... they get stronger and stronger. Also I am still learning but you can size, and shape out the targets. The only one's that throw me off are shallow, but lifting the coil does help and Using the edge of the coil can be a big help on sizing shallows also.

From air testing and experience I can just about tell how deep a target was once out of the sand. From the size and the very first signal I got..

Shallow micro targets will throw you off, but a kick of the sand or one scoop will tell you if there will be more scoops.

What machine are you using now and how..water..sand?

  • Like 1
Link to post
Share on other sites
41 minutes ago, Gman said:

First let me say new to this website. And thanks for having me. Hello to all.

My AQ question is can I tell the depth of the Target by the strength of the tone. 

Does the strength of the get weaker as the target gets deeper. On equal sized targets

Thanks Gman

Yes and no
a 1 gr gold ring
and a 20 gr gold signet ring
at the acquisition limit, in identical / compact sand
will give exactly the same signal
the only difference will be the depth .....

  • Like 1
  • Thanks 2
Link to post
Share on other sites

LE.JAG, Am I correct that you mean that the difference in mass of the light and the heavy ring is what makes the signal of each of them have the same amplitude at the limit of detection, but that the limit of detection of the light ring is a much shallower depth than the limit of detection of the heavy one?

That is a good concrete illustration of the fact that the audio level is a factor of the strength of the signal and that signal strength is a function of several factors and that depth of the target is only one of them.

  • Like 2
Link to post
Share on other sites

Thanks for the responses.

I'm hoping for the tells on the modulation as well.  It is certainly a helpful feature of a good detector to let you interrogate your target before, during and after you dig it.  It makes for a better learning experience going into the next targets.  It produces detector memory (mental memory, muscle memory) which gives us the feeling we're on to something good.

Modulation just happens to be what I consider to be a weak spot of the Equinox 800 I have.  (I never felt that way about the 3030 or  Explorer SE Pro)  I'm still surprised sometimes by the mass of some targets.  I can sometimes anticipate the target by tracing the size but not always.

Mitchel

 

  • Like 1
Link to post
Share on other sites
18 minutes ago, mn90403 said:

(I never felt that way about the 3030

Especially with volume gain at 25 and target trace on...I want to go back with it in the two spots I hunted with the Tdi last week and re-check the area faster.

4 gold rings already pulled out but losing lot of time and batteries means probably other good stuff in the area to be retrieved with some discrimination help.

Link to post
Share on other sites
1 hour ago, Rick Kempf said:

LE.JAG, Am I correct that you mean that the difference in mass of the light and the heavy ring is what makes the signal of each of them have the same amplitude at the limit of detection, but that the limit of detection of the light ring is a much shallower depth than the limit of detection of the heavy one?

That is a good concrete illustration of the fact that the audio level is a factor of the strength of the signal and that signal strength is a function of several factors and that depth of the target is only one of them.

Yes !

in other words
on perfect sound
if you don't see the ring
two scoop shot
you can hope the jackpot  :))

  • Like 3
Link to post
Share on other sites

Thanks for all the feedback. That's good enough for me. Used to run the original whites PI machine. Also a sovereign and now a White's Beach Hunter. Can't wait to get my hands on the AQ

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Similar Content

    • By schoolofhardNox
      It's been a while since I had a chance to get out with the AQ. Finally, a semi good low tide at a beach where you can walk out a long ways during a good low tide. I've been itching to try the AQ at this beach. I only had about 2 hours of very low tide to work with in the furthest away section, so I concentrated on the lowest areas. I also had my maiden voyage with my new scoop - the XTREME Surf-Master X3 with the carbon fiber handle. On this beach you either have packed rocks, packed shells or that stagnant, clay like, dark sand (smells good too 😂). The scoop had no issues with any of that. I was very impressed on how it handled and how I could bury the large scoop and pry it out of that clay like silt. I will have no issues with this scoop when I start to do some water hunting. 2 hours passes quickly, so no gold for me this time. Most of the other 3 hours was spent waiting for the low tide, so most of the junk came from that period. I was actually shocked at the lack of targets when the tide dropped. I expected many more deep targets, but it was rather quiet the whole time. I may have dug 20 targets in that 2 hour period. A total lack of coins too! Very unusual for me to hunt 5 hours and only get 4 coins. Settings were: All metal, ATS 3, Sensitivity 4+, Delay 7. Got a little bit of deep lead and 2 shot gun shells that could have been gold, but I'm thinking the gold sinks way lower that I am able to get to. Best find was a Buffalo nickel at around 12". Shotgun shells were about  14 - 15". Also found that, what I'm thinking is slag, sounds deep and quiet and fools you into thinking you have a deep, small target. All in all I had a great time trying my new scoop and trying my best guess at deep settings on the AQ.
       



    • By tvr
      Did the last few hours of daylight on the day of arrival with the Excal to check the beach, got one of the .50 cal shells a .50 cal point, a quarter, dime and penny; the rest of the week was all AQ. Did pretty well identifying iron. Spent nearly the entire time in all metal mode. On the open wet sand, it is easier to identify iron by walking around it and sweeping from all directions; something that is difficult if not impossible to do in the water. There were a few pieces of iron that fooled me. They are in the one picture towards the bottom, near center. Got a new style wedding band, no markings but probably stainless with either abalone or mother of pearl; not sure which. The ring was deep. It was a five scooper and was not in the side of the hole, was at dead center of where the first scoop was. That is what I have been hoping for with the AQ; now I just need to get the right metal. Got a couple of junk earrings that are fairly well encrusted and, unfortunately, stick to a magnet. Got a junk heart ring that looks to be copper, not extremely deep, Excal or CZ would have had no problem hitting that one.

      I did dig somewhere north of 100 bottle caps, did not count them all and threw them away before coming home. The one day that was "extremely deep bottle cap day" I counted 33 bottle caps.

      In front of some hotels when I'm high in the wet sand, near the dry, I would get interference that changing the frequency setting did not help. ATS at 8 or a little higher helps, dropping sensitivity down to 2 with the higher ATS quiets it down. Tried tone and mute modes and they were a little worse than all metal. As I get further from the offending interference, I can take the sensitivity up again. Some hotels gave no problems, some were chatty until adjustments were made. For the week, mostly hunting with sensitivity at 5 or 6, ATS at 5 and delay at 7.5. Interesting that near and under the pier that for years has made other detectors chirp, the AQ is quiet. Must be different kinds of interfering signals that affect the different detectors.

      Now that I’ve had a chance to spend time over open wet sand areas, coil control is important to keep from sounding at swing ends, it is the up and down motion by being sloppy, not the sided to side sweep, that sounds a little on the wet sand. The ergonomics of the AQ are excellent and help in that respect, particularly when I start to get tired and coil control is not as precise as when I’m fresh. I did a bit of calf deep wave wash area (that is where the Pandora bracelet was found) and found the AQ to be pretty quite (delay 7.5, ATS 5, Sensitivity 5, all metal), The wave wash was not too bad of a drag on the big coil, although it was not fast moving waves ... the conditions were being nice to me.
      Cheers,
      tvr


    • By cjc
      Did a quick hunt the other day and dug only coins.  This has to do with the "training" that Canadian coins have given me.  In a way they are a "median" target--part non-ferrous and part steel.  What this means is that they have characteristics of both.  So with a clean processing pulse like the AQ--you have a narrow signal (imagine a tube carrying the response up) with some wide or maybe irregular characteristics.  Point being that they make good "trainers" teaching you to look for even poor examples of a narrow response.  Then when you hear some clean gold...unmistakable.  Foils and tabs will do the same thing but are still not as good of conductors.   If you are in soft material focussing on deep heavy targets this is a very strong tool for ID'ing responses with the AQ.  Very glad that caps sound wide on this machine.  With a pulse that processes at this level the principle of "carry" (see illustration) is even more important.
      With some VLFs--Hieneken caps are similar to Canadian coins--steel--but with lots of aluminum in there too--right on the border--and for this reason a good teaching tool.
      cjc

    • By PPP
      Hi guys!
      Finally 2021 arrived and we are still waiting for the AQ.It would be nice if someone could confirm if the release date for the final product is still in April as i heared before?
      I found a link for a pre-order of the final unit at a UK website(Joe Allen) but they have removed it.That was a bit strange.Any report on the 8 coil and even price which Joe do right now would be interesting as well.any comments?
    • By Steve Herschbach
      A reference collection of threads about the Fisher Impulse AQ, grouped into rough categories.
      Fisher Impulse AQ Limited Launch & Buyers Disclosure
      Fisher Impulse AQ Ltd Owner's Manual
      Official Impulse AQ Limited Color Flyer
      Official Facebook & Website Links
      Fisher Impulse AQ Ltd Data & Reviews
      Fisher Impulse AQ Data & Reviews
      Fisher Impulse Gold Data & Reviews
      Genuine Fisher AQ Ltd Spare Battery Part Number & Price
      Fisher Impulse AQ Rod Length Measurements
      Impulse AQ Rod Extension
      False Signals From Coil Connector
      Fisher Impulse AQ Discrimination Explanation
      Impulse AQ Audio Responses
      Impulse Tones & Discrimination Notes
      Impulse AQ and "No Holes"
      Impulse AQ and Mineralization
      Fisher Impulse Small Gold Sensitivity
      Impulse AQ First Field Report
      Homemade Batteries For Impulse AQ
      More On Homemade Batteries
      Homemade Headphone Dongle / Add Wireless
      How To Relax The Headphone Cable
      Fisher Impulse AQ - The Next Version
      Quick Link To ALL Impulse Threads - Latest User Reviews and Reports
      Fisher Impulse AQ Calibration Information


    • By CCadrin
      Gold rings number 2 and 3 today with Fisher AQ.
        The smaller ring was down at least 8 inches and the bigger ring was down at least 10 inches. Very faint signals and could have walked right over them. The rings were found in wet sand.
        This was my seventh outing with the new detector.
        Still struggling with some falsing. Any advice would be appreciated. Mostly from a left to right swing. I do take extra precaution to make sure I am not arcing the swing. On a fully charge battery I can run pretty hot and it will be quiet. About an hour into the hunt I need to make adjustment. Today the battery lasted about 2 hour 45 minutes using ALL METAL mode.
        Eventually I was running with a delay of 10 than switched to 11, sensitivity of 8, ATS was either at a 3 or an 8. I also had to lower the threshold to the point of silence. I don't like running it that way but I hit both rings in the position.
        I also hit a couple of deep nickels that were 12 to 14" easily.

×
×
  • Create New...