New Ex cal II 10 Very unstable Threshold

[JoeyBugs]

The 2003 Ex cal 1000 Died this weekend so I picked up a new II today. I assembled it and put a charged pack on it and hit the yard. I could not get the Threshold to settle down in auto or even at lowest sens setting.... Any suggestions or anyone else experience it.

 

[Buried Crap NJ]

Well you have had a Excalibur in the past so you should know your way around. The only cause I can see is electrical noise. But that even seems odd. I get a smooth threshold in my garage, but it is affected by the underground wire in my yard. I would make sure its not something in your area, take it out in a field and give it a whirl. Then make the call to Minelab or the dealer as it brandi new. Good luck let us know what happens!

 

[JoeyBugs]

Thanks, I will do that today. I found it odd because my old Excal 1000 never had a problem in the yard before. I will let you know what happens later.

 

[dewcon4414]

Test it where you hunt. Mine is just the opposite, i get little falsing even at sensitivity at 10. I was worried it was under tuned, but it finds deep small targets.

Dew

 

[JoeyBugs]

Dew and Buried Crap NJ, you guys were right it had to have been electrical current in the yard. I tested it on the beach tonight and it was fine.I just cant believe the difference between the two units.I see a slight excal learning curve ahead of me. Thanks for the advice. HH...

 

[Neil in West Jersey]

Seems like the shielding added on the Excal II really does the job!

 

[Dirt Poor]

My excal behaves differently at certain places, too, but I'm aware of it, so I don't pay it any mind. Good luck with the new machine!

 

[OldBeechnut]

Seems like the shielding added on the Excal II really does the job

Your right Neil...Had a couple excalibur two's apart..the excal II use's a Aluminum shielding on the under side of the decal..very cheap..and it's not grounded to the PCB. Like the shielding on the sovereign xs2, I guess Minelabs said shielded but never said from what.

 

[synthnut]

Not sure how well a shield can work without being grounded on the Excal ..... In audio , sometimes the shield is left only connected to the one side of the audio signal ground wire and left open on the other end , but at least it's tied in on one end of the circuit ground ...Not sure how it works in this Excal application .....Jim

 

[Tin Fin]

That's really curious - I wonder if the cylindrical shape of the shielding in the excal is literally just a physical shield from electrons rather than being a grounded shield - I don't know much about audio design, but the shape of the excal could be coming into play with they way they use the shielding.