AT Pro VDI

[Sheppie22]

Why is it that on a 6-7 inch quarter I get a vdi reading of 82-83 and it jumps between high and mid tone. This is in clean ground in pro zero at max sensitivity. On a shallower quarter it reads 86-87 with a solid high tone. My etrac will give me a sweet constant high tone with a constant 12-47 as a quarter should on that depth. What gives here.

 

[SavageHunter]

Are you using the 5x8 coil?

 

[Sheppie22]

Sorry, should have said. Using the stock 8x11 dd coil.

 

[seabud]

how can it jump between a high and mid tone at 82-83 that's all high tone on my AT Pro

 

[Sheppie22]

You are correct. I was getting a constant 82-83 but it was jumping between high and mid tones. Don't know why.

 

[Sheppie22]

It's almost like that any signal below 4-5 inches you just gotta dig and hope for the best.

 

[SavageHunter]

Is your ground dry?

 

[fella]

Think you guys are being baited!

 

[Sheppie22]

No rained alot the last few days. Ground very moist but not muddy, and no not baiting anyone. Just trying to understand the AT Pro. Bought it as a backup to my Etrac and trying to understand it.

 

[Sandman]

You can't compare the more expensive Etrac with many frequencies against what ever the ATP does or doesn't do.

 

[Sheppie22]

I can understand that and so far I think the Pro is a nice machine. Just trying to find out if I can rely on the vdi or should I just dig everything that is repeatable and is a mid or high tone.

 

[seabud]

I have never had that problem either a copper penny dime or 87 to 89 a quarter

 

[Sheppie22]

Even on deeper coins.

 

[seabud]

yes

 

[Sheppie22]

Thanks for your reply. I will keep at it.

 

[wetfly]

If you are referring to the differences sometimes with the vid number and what you are hearing in the headphones, I have had that happen on occasion as well. I try and use the numbers as a rough estimate and rely more in what I hear! I get that scenario also when hunting in trashy or semi virgin areas when several targets are under the coil, commonly a clad quarter and a zincoln or two in close proximity-- I only use the stock coil on pro zero as well! Just about any problem I have had personally with this machine has undoubtedly been operator error! I find the more time I spend swingin 'er the more I understand what she's tryin to tell me! Couldn't be happier with my results thus far!

 

[oakhunter27]

Quarter VDI 86 to 89 high tone on my ATP deep or shallow

Sent from my SCH-S738C using TreasureNet in the middle of a field somewhere

 

[gleaner1]

Why is there air?

 

[RobRieman]

Why is there air?

To breath?

 

[perry2]

Interesting // I get 83-85 on a quarter (clad) almost every where and any depth-- I have always felt they build all detectors using the quarter as a base// Perry