Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Charts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Metal Detectors
Minelab
Minelab Gold Monster 1000 tips and questions
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Prospecting Australia:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="grubstake" data-source="post: 347858" data-attributes="member: 4012"><p>Salinity is a special and difficult case for any single frequency VLF detector. To handle it successfully, they need to have a wide ground balance range ("<em>balances all the way to salt</em>", as Fisher Research labs put it), but still be able to cope with whatever mineralisation is present, while maintaining sensitivity to all metallic targets - it's a big ask! So at best, a single frequency VLF will lose some sensitivity in saline conditions, at worst it will be so noisy as to be almost inoperable.</p><p></p><p>The Whites Visual Display Indicator (VDI) scale below, is based on salt as zero (0), with ground balance mineralisation shown as negative numbers on the scale. As it also illustrates, some very desirable targets (eg. small nuggets and small gold jewellery), fall close to or within the salinity range!</p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4012/1500852590_mx5_vdi_1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="grubstake, post: 347858, member: 4012"] Salinity is a special and difficult case for any single frequency VLF detector. To handle it successfully, they need to have a wide ground balance range ("[i]balances all the way to salt[/i]", as Fisher Research labs put it), but still be able to cope with whatever mineralisation is present, while maintaining sensitivity to all metallic targets - it's a big ask! So at best, a single frequency VLF will lose some sensitivity in saline conditions, at worst it will be so noisy as to be almost inoperable. The Whites Visual Display Indicator (VDI) scale below, is based on salt as zero (0), with ground balance mineralisation shown as negative numbers on the scale. As it also illustrates, some very desirable targets (eg. small nuggets and small gold jewellery), fall close to or within the salinity range! [img]https://www.prospectingaustralia.com/forum/img/member-images/4012/1500852590_mx5_vdi_1.jpg[/img] [/QUOTE]
Verification
Post reply
Metal Detectors
Minelab
Minelab Gold Monster 1000 tips and questions
Top