MAGIC'S PROGRAM

[Rob (IL)]

Also is the 2.5 kHz the dominate frequency with these 80's readings? If not it is trash.

Have you tried correlate mode, it can help ignore iron?

 

[broevol]

I'm not sure if 2.5 is dominate per say, as it seems like I can get all 3 to line up in a single bar on the spectragraph.

I am pretty sure the coil is just picking up the junk to the left and right and making it sound and look good. Like I said
before, pinpoint is registering nothing in the good area...However, a lot of times I'm getting an initial depth reading of 9 plus inches and it
seems like I read somewhere not to rely on the PP mode after 6" or so.

I have dug several of these signals and it seems like after using my pro pointer I am always digging into the side ways to retrieve the nails or
iron.

 

[Larry (IL)]

You can always rely on your pinpoint regardless of the depth, it is the target ID that loses reliability with depth.

 

[Rob (IL)]

You check for the dominate frequency in pinpoint mode. The longest bar is dominate. Try a quarter and a beer cap. The VDI are basically the same but the dominate frequency will be different.

If you move around the nail you usually won't get a good reading in all directions.

1. pinpoints off center
2. good reading in basially one direction.
3. wrong dominate frequency.

 

[broevol]

Dominate freq. for a coin (silver/copper) should be 2.5...or green, correct?
Seems like junk iron comes in the same as that though, right?

 

[Rob (IL)]

I just used a rusty nail to check for you and it was hitting 7.5 kHz for me. If you move around the target when pinpointing to change the angle to the nail it probably will only read good once in awhile. It might read good if it is hitting the sharp point just right. I can also get a longer pinpoint in one direction on a nail, telling me it isn't a round target. These are just clues as to what it is.

Green doesn't mean much, my 2.5 kHz would be blue since it based on Hi Pro. You can make the colors anything you want on the V3i.

Anything is possible, I just dug a 50 quarter. It was bouncing between nickle and zinc penny. Of course it turned out to be a quarter and nickle in the same hole and it never read quarter.

Try this

1. Reject -95 to -7 and +95 ........ Eliminate most ferrous and prevent "wrap"
2. Bump your BCR to 4 or 5 ........ BCR controls how your unit deals with ferrous material
3. Run in Correlate mode ............. Iron (ferrous) doesn't correlate well - you'll get better rejection

 

[broevol]

Very well sir! Green being the default for 2.5 khz. Thanks! this should help me along.

 

[broevol]

Thanks for the tips Rob. That quieted my machine down and got rid of the iron falsing. Thanks again!