MD as long distance

[Esteban]

How a search head of MD can work as long distance. Coil is type pinpointing.

The max. distance was a coin at 70 m. in inland.

[Tim Williams]

Tell us about it.

Tim

[amtech2005]

Since we are on the subject of long distance. Tommorrow I am picking up a Fisher Gemini-3 for $50 dollars . Only thing thats missing is the connecting piece or arm that goes between the two boxes - "transmit and recieve". The unit makes noise and has 8 AA batteries for each box and No rust inside. I guess it runs around 60 to 70 khz. Anyway I just wanted to know if the arm is metal , like aluminum or a composite material. I might make a "makeshift PVC assembly" if i cant find the factory brackets. I am not sure on a price of a new one but I heard there over $500.00 ??? And how deep they go I have no Idea !! This will be my first 2-box for my collection . Any comments let me know , Thank-You Eugene

[Geo]

Hi Esteban .
Can you discriminate with your long distance detector?????
Who is the behavior in rust objects???????
Regards

[Esteban]

Hi

This only detects silver, gold and copper-bronze, non ferrous objects since the coil is adjusted only for non ferrous. Aluminium cans no detect.

For small objects has not depth, but yes for big items. Object must be in soil since X time.

[ivconic]

I just posted some of my experiences in "Testing and Comparing.." thread.
What you saying here is just against my claims. So i am very interested in that subject. Can you describe a bit more that device?
Best regards Esteban!