Jasonj Posted June 29, 2019 Share Posted June 29, 2019 I’ve been hunting a good site using the Deus and Equinox which has nails and small iron mixed in with good targets, some good targets being deep, but near or in the iron. My question is, will a GPX with Iron Discrimination turned up and the smallest DD coil pull out the deeper, non-ferrous items amongst heavy iron? Has anyone had any experience with this? I think for shallow targets the Equinox or Deus works better for shallow targets in this “machine gun iron”, but would like to see what others may have insight on for using the GPX. I’m assuming the fast setting and special soil timing may need to be adjusted as well. Thank you in advance. Link to comment Share on other sites More sharing options...
fredmason Posted June 29, 2019 Share Posted June 29, 2019 I doubt your 5000 can "see" through the iron to get to the goodies. The discrimination is and always has been questionable on Minelab PI machines. let me know how you do... fred Link to comment Share on other sites More sharing options...
Steve Herschbach Posted June 29, 2019 Share Posted June 29, 2019 Heading into ferrous with a PI is not for the faint of heart because no matter what you do you will dig a lot of trash. Since you have a GPX however there is no harm in giving it a go. Link to comment Share on other sites More sharing options...
Jasonj Posted June 29, 2019 Author Share Posted June 29, 2019 Thanks all. I’ll give it a go and see. Link to comment Share on other sites More sharing options...
schoolofhardNox Posted June 29, 2019 Share Posted June 29, 2019 Jason, Your scenario is probably the toughest scenario for any PI. If you have the small Minelab coil (5x10?) DD or any DD small coil, use that. I would also start with a very low gain of 5 to narrow the signal a bit. Very slow, short sweeps. I would start with an iron disc of 5 to be safe. If you are looking for coins and not nuggets, then 8 or 9. But be careful, non ferrous targets close to the surface will mimic an iron blanking (kind of). I think low gain and very slow coil control will be your best bet. Let us know how it goes. Link to comment Share on other sites More sharing options...
Jasonj Posted June 29, 2019 Author Share Posted June 29, 2019 Just now, schoolofhardNox said: Jason, Your scenario is probably the toughest scenario for any PI. If you have the small Minelab coil (5x10?) DD or any DD small coil, use that. I would also start with a very low gain of 5 to narrow the signal a bit. Very slow, short sweeps. I would start with an iron disc of 5 to be safe. If you are looking for coins and not nuggets, then 8 or 9. But be careful, non ferrous targets close to the surface will mimic an iron blanking (kind of). I think low gain and very slow coil control will be your best bet. Let us know how it goes. Awesome advice, thank you! I have the 5x10 DD and an 8” round DD Coiltek and the Platypus coil (among others) but those have the smallest footprint. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now