Tejon for old coins

[Lee66]

I got a Tejon last fall for relic hunting. It's great for that purpose. I tried it Saturday for old coins at a heavily hunted old ball field. I did manage one old wheat from about 5 inches. No other old coins. I think this site still holds some old coins as I have pulled a couple of mercs from the trashy sidelines in the past. I am running the stock coil. Ground balanced to neutral with a slight turn to negative. I'm running primary disc. just under foil and use the secondary as a coin check with it set in the high tab range. Any tips for using the Tejon on sites like this one?

Thanks,

Leeinsc

 

[amberjack]

yeah maybe try the 5.75 concentric see how that goes Tejon finds old silver for sure, not the best not the worst it will get some for you. its no FBS machine but yes it can find silver.

AJ

 

[Lee66]

I've got one coming. Should be here later in the week. Thanks for the tip.

 

[amberjack]

well there ya go you will pick some out with that I am sure !!

AJ

 

[Stoof-tabsallday]

FBS machine, AJ?

 

[amberjack]

Full Band Spectrum (FBS)


FBS Technology Logo

FBS (Full Band Spectrum) simultaneously transmits, receives and analyses a full band of multiple frequencies. This provides the detector’s electronics with even more information about a target and the surrounding environment than is possible with single frequency or BBS technology. This has a number of advantages, including:
• High sensitivity across a wide range of target types and sizes, so you only have to cover the ground once.
• Automatic sensitivity and ground compensation, so maximum depth is achieved even in mineralised ground, including salt water beaches.
• Extremely accurate multi-channel signal conversion to precisely separate target signals from ground signals for maximum detection depth and high resolution target identification.
• Smartfind two dimensional discrimination, giving you maximum target information, so that targets can be discriminated by both ferrous and conductive properties simultaneously



FBS great depthFind Every Target Type & Size with Every Sweep

Generally, high transmit frequencies are more sensitive to small targets and low transmit frequencies give more depth on large deep targets. FBS simultaneously transmits and analyses a full band of multiple frequencies from 1.5 kHz to 100 kHz and is therefore sensitive to both very small and large deep targets at the same time. This means you only need to cover the ground once and can be confident you’re not leaving ANY valuable treasure behind.





Automatic Sensitivity & Ground Compensation for Maximum Depth

As you sweep the coil in search of targets, Automatic Sensitivity and Ground Compensation monitor the full band of frequencies for changes in ground mineralisation. Whenever the level of ground mineralisation changes the sensitivity is automatically adjusted to maintain maximum depth. The ground compensation circuitry removes false signals caused by fast changing levels of ground mineralisation. Both of these advanced features work together to maintain maximum detection depth and sensitivity, allowing you to concentrate on listening for targets.






Sigma Delta ADC block diagram.jpg

Extremely Accurate Multi-Channel Signal Conversion

FBS uses multiple channelled Sigma-Delta analogue-to-digital converter technology to digitise the analogue signals received by the search coil. This ultra-fast processing, using a digital reference (1 bit DAC), provides the microcontroller (MCU) with detailed information about the ground conditions and targets. This gives FBS the ability to precisely separate target signals from ground signals for maximum detection depth. It also provides Smartfind with the necessary high resolution target data to accurately plot targets.





FBS smartfind.jpg

Smartfind 2D Discrimination (not used in Safari detector)

Minelab’s exclusive 2D Discrimination technology analyses a target’s ferrous (Fe) and conductive (Co) properties simultaneously. This revolutionary approach is the most accurate technology available for determining whether a target is treasure or trash.

The information can be heard as different Fe-Co audio tones, as well as being displayed numerically and graphically on a 2D scale. Individual segments or larger areas of the display can be shaded to reject unwanted targets.



AJ

 

[Lee66]

I have been toying with the idea of a used Explorer se. I'm going to try my beach Sov. with the 8 inch coil and Ron's meter first.

Thanks

Leeinsc

 

[Stoof-tabsallday]

So which detectors have that? No tesoros I imagine.

 

[John (Ma)]

Turn the sensitivity as high as you can stand it with your current settings. I hit a 2 cent coin "ALL" of 9". It hit where another high end detector was reading it as junk. I was beside myself when I dug it up!

 

[amberjack]

I have been toying with the idea of a used Explorer se. I'm going to try my beach Sov. with the 8 inch coil and Ron's meter first.

Thanks

Leeinsc

more than one person does well with the Sov in the dirt

AJ

 

[amberjack]

So which detectors have that? No tesoros I imagine.

Minelab.

AJ

 

[amberjack]

Turn the sensitivity as high as you can stand it with your current settings. I hit a 2 cent coin "ALL" of 9". It hit where another high end detector was reading it as junk. I was beside myself when I dug it up!

Totally agree no one machine finds it all

that's why I have a couple that's my excuse and I am sticking to it.

AJ

 

[Oldguy]

Get a good set of metal detecting headphones (Grey Ghost or similar). Silver hits a little softer than low or mid conductors, it takes time but with good headphones you can ID silver this way.