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Lunk

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  1. Another cold find from northern Nevada. I was detecting for gold nuggets with my GPX 5000 along a narrow wash that had lots of exposed bedrock. Upon hearing a moderate signal, I looked down and instantly recognized the small meteorite; you'll notice in the pic how it stands out from the surrounding soil and rocks. I'll never have this one classified because it's a complete individual; cutting it would ruin it. 

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  2. There's not a lot of activity on the meteorite forum, so I thought I'd start a new thread to hopefully jump-start things. It's an invitation for forum members to post pics and/or stories of theirs or others meteorite finds.

    When I'm not hunting gold, I'm chasing meteorites. There's nothing quite like finding a rock that is literally out of this world.

    For meteorites that I have had classified, I've included links to their entries in the Meteoritical Society's catalog of officially recognized meteorites. They are cold finds; for those not familiar with the terminology, a cold find is newly discovered meteorite that is not part of any known fall or strewn field. So enjoy, and lets see some meteorites!

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    https://www.lpi.usra.edu/meteor/metbull.php?sea=Diablo+Pass&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal table&code=35516

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    https://www.lpi.usra.edu/meteor/metbull.php?sea=Quartzsite&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal table&code=35634

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    image.jpeg

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    https://www.lpi.usra.edu/meteor/metbull.php?sea=Imlay&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal table&code=52855

    I'll have more to share later...

  3.  

    Brian,

    A quote from JP in another topic regarding the GPZ seems to be applicable here:

    "Difficult and Normal: Difficult removes ground signal but also the null points of the modes (High Yield, General and Xtra Deep) are different to each other across the Ground Type modes (Difficult compared to Normal). For instance a 1/2 ounce solid nugget will give a better response in General Difficult than in General Normal, this is not due to ground signal but more to do with the modes sensitivity points. Some nuggets will fall into a modes least sensitive position that's why it pays to go over ground with a variety of modes."

  4. 12 hours ago, G.B. said:

    From watching the video it appears that there is no threshold.

    I cranked the volume when watching the video, and there is a very faint threshold; the audio quality of the video is poor, and I believe the microphone used to record it didn't have a very wide dynamic range. So it registered louder sounds like the bird and the target responses while muting the quieter sounds like the threshold and some of the conversation, and could have caused the clipping effect as well. 

  5. The first thing I noticed when listening to the audio is that the threshold level seems to be set too low, which clips the target response; a faint target below the clipping point will not be audible. Also, notice how the target response is inverted. Instead of the traditional high-low tonal response to a small nugget. the QED produces a low-high response. 

  6. 24 minutes ago, Andyy said:

    If I recall correctly, you had a very low setting on the volume limit which I thought was strange.

    It does seem strange at first glance until you think about it; since increasing the Volume Limit has no effect on faint targets, it just makes sense to turn in down just low enough to where a strong target response is actually comfortable to listen to. It makes detecting in trashy areas almost pleasant. ?

  7. Andy, Steve is right; the Volume Limit merely sets the maximum volume that a target can make, and so has no effect on boosting a faint target response. To do that, you need to increase the Volume setting, which controls the internal amplifier. Until you find the right combination of audio settings that work best for you, feel free to give mine a try here:

     

  8. With the winter months upon us, it's time once again for fun in the desert sun.? 

    I spent a few days in northern Nevada en route to the big Q and managed to collect a half an ounce of golden goodies from old nugget patches with the trusty Zed. Where the damp alkali soil became too noisy for High Yield / Normal, selecting Extra Deep / Normal did the trick. At other locations, iron mineralization was the culprit and the High Yield / Difficult combo was the answer. 

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