Gold hunting in water:HF 9" coil 28 Khz or X35 9" coil 28 Khz which one is better?
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Thread: Gold hunting in water:HF 9" coil 28 Khz or X35 9" coil 28 Khz which one is better?

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  1. #1
    sk
    Nov 2008
    79
    30 times

    Question Gold hunting in water:HF 9" coil 28 Khz or X35 9" coil 28 Khz which one is better?



    Which one is better? Has anyone done a comparison test between the two coils for a jewelry hunt in the water? (freshwater or land)


    Both are able to use the same frequency. 28 kHz is very good for detecting gold. When I hunt in the water it is a very useful feature of target ID normalization. On the of LF coil, this was a big advantage. I set the gold range, so I only dug out the signals that belong to it.
    The HF 9" coil is great, but when I increase the frequency the VDI changes, getting higher and higher. The upper range will become narrower. This makes it difficult to decide whether to dig or not.
    Let's look at an example.
    A 1.5 g 14K wedding ring is the test object.
    HF 9 "coil at 14 kHz = ID 50, 28 kHz = ID 65, 56 kHz = ID 79.
    X35 11 "coil 11.3 kHz = ID 54, 16.4 kHz = ID 54, 25.4 kHz = ID 54!
    If I use frequency offset these numbers will change a bit.

    The general opinion of many people is that the HF coil is the best. I'm not so sure about that. I looked at this idea in terms of the gold jewelry hunt.

  2. #2

    Jul 2013
    2,116
    1690 times
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    Not too sure about that as i am still learning my Orx. I have found 3 gold rings with it so far and all three I was using the HF 9Ē round coil in coin fast disc 5, 95 sensitivity, reactivity 2.0 14khz. Two of the rings were very small with the lightest one weighing 0.7grams and the Orx hit hard on it. Iíve dug bottle caps that were just giving a repeatable whisper easily 20-24Ē down and same with pull tabs 18+ inches. I love my new Orx. Iím digging old beaver tail pull tabs at beaches Iíve gone over with my At Pro dozens of times and that is just awesome to me!

  3. #3

    Jul 2013
    2,116
    1690 times
    Banner Finds (1)
    ....I have heard the HF round coil is the best for beach and jewelry hunting.

  4. #4
    us
    Big Boys Hobbies

    Jul 2005
    Moore Oklahoma
    Call for your Treasurenet special discount! Be sure to mention Tnet when you call!
    3,883
    751 times
    Metal Detecting
    I really like the HF coils for jewelry. Specially the 9" Round XP high Frequency coil. In my area, the 9" X35 XP Coil in trash or the 11" XP X35 coil for depth seems to do better for me on coins.
    timmysys and Irishgoldhound like this.



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  5. #5
    sk
    Nov 2008
    79
    30 times
    It is interesting how few use Deus in freshwater in the US. Here in Europe, this machine is popular among water hunters. I really like to use the HF scroll for jewelry hunting in the lakes. But I know several hunters who can easily find a lot of chains, small earrings, the back of an earring with the old low frequency coil. The HF coil is much more sensitive to gold. The gold range changes as the frequency increases. Therefore, it is much more difficult to learn typical values, coins. In a very trashy place, it is more difficult to select the gold range.
    Czkidd likes this.

  6. #6

    Jul 2013
    2,116
    1690 times
    Banner Finds (1)
    Quote Originally Posted by timmysys View Post
    It is interesting how few use Deus in freshwater in the US. Here in Europe, this machine is popular among water hunters. I really like to use the HF scroll for jewelry hunting in the lakes. But I know several hunters who can easily find a lot of chains, small earrings, the back of an earring with the old low frequency coil. The HF coil is much more sensitive to gold. The gold range changes as the frequency increases. Therefore, it is much more difficult to learn typical values, coins. In a very trashy place, it is more difficult to select the gold range.
    I use my Orx only for water and wet sand. The way it hits on pull tabs and gold rings is awesome. My AT pro doesnít bang on rings like that.
    timmysys likes this.

  7. #7
    us
    Dec 2018
    FL, OK
    Whites TDI Beach Hunter Equinox 800 XP DEUS
    181
    766 times
    All Types Of Treasure Hunting
    I have used all the coils in water, ocean and parks fields. As far as fresh water goes,the 9”Fl and 9” Hf work fine. I use 17 kHz. I also use Gary blackwells hot program in the water. Found quite a bit. YouTube- Metal Detecting with CZKidd. One problem I have encountered often is the LF coils disconnect” no coil”, even though the antennae is out of the water and RC floating about my neck. The coil that gives me the least issue in the water is the 9” Hf. It does not disconnect. Don’t use the elliptical in the water. Take to long to search. It’s nice, but to small
    Last edited by Czkidd; Nov 03, 2020 at 10:45 PM.
    timmysys likes this.

  8. #8
    sk
    Nov 2008
    79
    30 times
    Build an antenna like the one I showed in this post. You will no longer have a disconnection problem. Fresh water lake hunts


    A friend of mine loves the HF elliptical coil in the water and with very good results on the very dense garbage beaches, but only in fresh water.

    Very interesting video! May it help eliminate the ground noise in water to hear the small low conductors. I am curious how will works in water hunting with it. Silencer and reactivity how helps.

    Last edited by timmysys; Nov 04, 2020 at 03:33 PM.

  9. #9
    us
    Dec 2018
    FL, OK
    Whites TDI Beach Hunter Equinox 800 XP DEUS
    181
    766 times
    All Types Of Treasure Hunting
    You will not have ground noise in the water unless you are running the coil very hot. Don’t really have to. Most jewelry drops are sitting on the surface bed. I have found small earrings with either coil. LF at 17 and round at 31khz. Trashy bottom running react at 2-4. Silencer, wide open, -1. Don’t have a lot of iron to contend with in the lakes. Go luck!
    timmysys likes this.

  10. #10
    sk
    Nov 2008
    79
    30 times
    Quote Originally Posted by Czkidd View Post
    You will not have ground noise in the water unless you are running the coil very hot. Donít really have to. Most jewelry drops are sitting on the surface bed. I have found small earrings with either coil. LF at 17 and round at 31khz. Trashy bottom running react at 2-4. Silencer, wide open, -1. Donít have a lot of iron to contend with in the lakes. Go luck!
    Here some lake have bad clay/mud on bottom, filled with vulcanic sparks and a tons of tiny irons.

 

 

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