post today's findings in my soil.
Comparing the Ground Hawk to the Tesoro Tejon.
Depth: nearly the same on coin sized targets. A fresh buried clad quarter at 8 inches was a good solid signal on the Tejon and GH but the Tejon's signal was slightly louder. I therefore would say the Tejon is maybe 1/2 inch deeper on coins but also the Tejon's coil is larger than the coil on the Ground Hawk. So with equal coils maybe they're the same? Another thing to note is the GH has those sweet mellow vintage sounds on deep coins while the Tejon has beeps. Long time buried coins in undisturbed soil would probably detect deeper with both machines.
Discrimination: the Ground Hawk is supreior to the Tejon. The GH can discriminate out a silver dollar sized rusty washer and yet give a solid clear signal on a nickle and gold chain. The Tesoro Tejon can't duplicate this.
Balance and general quality: the Tejon is superior to the GH. The GH feels just like those famous vintage Fisher machines some still use. It's a little top heavy but the weight seems only a little heavier than the Tejon.
Warrenty and coil options: no contest--Tesoro all the way.
Extra notes:
If I could have only one machine and had to chose bewteen these two it would be the Tejon.
I see the Ground Hawk as a great backup machine for coin/relic hunters. I'd love to try the GH at some old park loaded with trash. I'd hunt in all-metal mode and pull the trigger back to check the target in discrimination mode. This seems to work best.
Ever notice that a target gets better or worse the more times you swing the coil over it? The target almost seems to charge with energy with each swing of the coil. Well, hunting in all-metal with the GH seems to charge the target and when you check it in discrimination mode it appears one gets a much more accurate discrimination reading.
Here's what I'd suggest: Hunt a new site with a faster machine and mark the hot spots. Then return with the Ground Hawk and while hunting slowly (like with the Explorer), hunt in all-metal mode using the discrimination trigger on each target.
I could see where this machine could pull targets out of very trashy sites where others might mask out.
That's it fer now.
--kid