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
Whites
TDI Pulsescan modifications AND BIG coils
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="AVXVA" data-source="post: 633928" data-attributes="member: 22410"><p>I had the TDI out the day before it snowed--a lot. I placed four (4) older Canadian pennies linearly in duct tape and buried them 13" deep. (Great for test gardens, old Canadian pennies are known for their high quality copper/tin (bronze) content and they sing on a VLF-machine exactly like 19th-century US pennies.</p><p></p><p>Anyway, at 13-inches, I managed to get a response from the TDI with GB turned on. (I did not document the Pulse Delay, but I'm pretty certain it was 17.5.)</p><p></p><p>Interesting thing though: the signal ALWAYS sounded as the coil moved OFF the target. No sound coming in or directly over, <em>but always as the coil was leaving</em>. Is this normal?</p><p></p><p>Set on 25 Pulse Delay, I didn't get anything. AND, I was experimenting with all the knobs to the point that I am not quite certain how it was set to get the detection!!</p><p></p><p>Simply said: I Have A Lot To Learn. And, the TDI is an instrument that will require use and dedication to master.</p><p></p><p>Rob</p></blockquote><p></p>
[QUOTE="AVXVA, post: 633928, member: 22410"] I had the TDI out the day before it snowed--a lot. I placed four (4) older Canadian pennies linearly in duct tape and buried them 13" deep. (Great for test gardens, old Canadian pennies are known for their high quality copper/tin (bronze) content and they sing on a VLF-machine exactly like 19th-century US pennies. Anyway, at 13-inches, I managed to get a response from the TDI with GB turned on. (I did not document the Pulse Delay, but I'm pretty certain it was 17.5.) Interesting thing though: the signal ALWAYS sounded as the coil moved OFF the target. No sound coming in or directly over, [i]but always as the coil was leaving[/i]. Is this normal? Set on 25 Pulse Delay, I didn't get anything. AND, I was experimenting with all the knobs to the point that I am not quite certain how it was set to get the detection!! Simply said: I Have A Lot To Learn. And, the TDI is an instrument that will require use and dedication to master. Rob [/QUOTE]
Verification
Post reply
Metal Detectors
Whites
TDI Pulsescan modifications AND BIG coils
Top