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Mark Gillespie

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Posts posted by Mark Gillespie

  1. Only place where reducing the TX power in conjunction to ground noise is mentioned about the Equinox.  No doubt the programming “algorithms” used, monitor and adjust transmit power down but also up in areas of low ground noise.  One thing I can confirm is that Beach 1 can see and give a good audio on every target in my test area.   

    Looking forward to hunting my cinder fields with these two modes.

  2. Even though the Equinox handles the old school yards where they have discarded the coal waste for decades, it still struggles when the ground is saturated.  I went hunting Sunday and the machine was very hard to hunt with, continuous ground chatter.  Tried each preset program with both GB 0, manual GB and tracking and all displayed issues with this ground. Finally, I opened up the screen and the results were astonishing, continuous iron audio reports from the waste.  Decreased sensitivity to 15 and increased the recovery to 8 and finally started finding non-ferrous items mixed in the cinder waste.  Amazing just how fast this machine can recover amongst all the cinder.  The ground really needs to be bone dry to hunt with a VLF machine of any kind but the Equinox did okay.  My PI machine is still the raining champ when it comes to this type of ground conditions.

    Still waiting on 1st Texas and their new PI and I’m hoping it has some sort of discrimination feature.

    • Like 4
  3. 11 hours ago, Mark Gillespie said:

    Before trying a non standard coil it's a good idea to ohm each lead and see:

    What pins are giving an ohm reading.

    What is the ohm reading of these pin combinations.

    Next test your host coil and compare the pin read outs.

    Then make a judgement call on whether or not to try.

    I've not been very successful at find a working coil that is not designed for the host machine.

    But have had some to work, but not perfectly.

     

    I forgot to mention inductance of the coils, very critical in combination with pin to pin ohm readings.

  4. Before trying a non standard coil it's a good idea to ohm each lead and see:

    What pins are giving an ohm reading.

    What is the ohm reading of these pin combinations.

    Next test your host coil and compare the pin read outs.

    Then make a judgement call on whether or not to try.

    I've not been very successful at find a working coil that is not designed for the host machine.

    But have had some to work, but not perfectly.

     

    • Like 1
  5. On ‎3‎/‎3‎/‎2018 at 7:16 PM, cjc said:

    Do you think it is similar to Deus Silencer?

    A silencer control is aimed at muting the high fq iron responses that are from large targets overwhelming the disc c--circuitry--actual wraparounds.  To some extent it also smooths out the crackle of small iron in the ground that a high gain circuit amplifies. Iron Bias is more of a filter that raises the level of what the detector assigns as consistent versus inconsistent.  I've worked places in the Caribbean where there were so many rusted coin that you could dig them all day--especially where there is a strip-out-- so this feature is a welcome addition. 

    cjc

    Glad you mention the Deus, in my use a silencer setting of 0 to -1 suited best for the ground I hunt in especially when depth was my goal.  Surprisingly this setting worked very well in the red/orange clay of Virginia and on many occasions when the target was 5+" in depth a silencer setting above 2 caused a very choppy, inconsistent audio over a setting of -1.  Just my 2 cents.. 

  6. Amazingly I had a similar but not exact situation happen yesterday while hunting an old park (loaded with modern pull tabs) with my two hunting buddies.  I had dug several old, flat bottle caps (ID came in the 30's) and many twist off bottle caps (ID 20-22) while hunting deeper targets.  I was purposely running field 1 with no discrimination, 50 tones, recovery 7 and listening for the hint of a higher tone than the normal tone of 20-22 because this area had yielded many Barbers, Indians and Mercs in the past. My first slightly higher tone was so well mixed I almost walked away, the Id floated between 20 and 23 but the 23 caught my attention so I decided to dig and at less than 5" and laying vertical beside a huge rock was a 1936 wheat penny.  My next target was completely different in that it had solid ID's 18-19 with associated tones but just the hint of a higher tone in the mix.  This target ended up being a 1919 wheat penny. 

    I might add, even though I've got some time on this machine, I'm not an expert by any means but the audio characteristics are coming with use.  Audio first, ID second..........

    • Like 2
  7. On ‎3‎/‎30‎/‎2018 at 2:50 PM, Steve Herschbach said:

    I have made mention several times that every search profile has its own ground balance and so it is critical in bad ground to ground balance each search profile separately. Again, in milder ground just leave it be. How to know when to ground balance? In any mode, hit the horseshoe button and detect over metal free ground. If you get lots of puttering in the -9 and -8 and possibly -7 area that is the ground signal as is shown in the phase chart above. This is another reason why running full tones (no items rejected) can be beneficial as you do hear the ground signal. You might eliminate that signal by dropping the sensitivity a notch or two. But if it is persistent it does indicate you probably should be ground balancing the detector. Even when you notch out this region the ground signal is still there and so trying to get that negative range to settle down is the best bet for most people to help eliminate ground masking effects. For shallower targets you might also ground balance, then jack the sensitivity up and block out the negative numbers. This will make shallow targets like perhaps small gold nuggets pop but does risk deeper items going missed due to ground masking.

    Absolutely, positivity 100% true Steve.  Amazing how you put technical data in layman terms.

    • Like 2
    • Thanks 1
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