Frequencie offset

[lumacurve]

Hello all, Still learning the V3i If I use frequencie offset to eliminate EMI around power lines, electric fences, ect. and then the next day hunt a farm field that would have no EMI should I set my offset back to 0 or does it make a differance?

 

[Rob (IL)]

Yes, set the frequency offset for the quietest operation for each site. I have my basic program, after I make changes for a certain site, if I go to a different site I hit restore to start with my basic program again. That way I don't have to quess how many changes I made.

 

[Hunt4Fun]

Thanks Rob. Great tip to hit restore.

Bob

 

[GroundScanner]

Rob is this after you save or do i have to save it 1st?

 

[Rob (IL)]

Once you have your base program worked out you save it. Then you go out hunting and make changes. Each time you start your hunt you hit restore and your favorite program is ready to go with no changes made.

 

[cypearl]

If you have off set + it will have effect in smaller targets since frequencies effects as high freq effects the smaller and lower effects the larger targets. 2.5 then for big targets and high conductive and 7.5 a bit smaller and all around performance and 22.5 for lower conductive targets and smaller.

 

[Rob (IL)]

Best Frequency to Use is determined not only by metal content, but also size and thickness. For thicker coins with high silver content there is no question that 2.5 kHz will hit harder than 22.5 kHz. For US nickels 22.5 kHz will hit hardest. 22.5 kHz may also work best on small thin coins, even those with high silver content, due to skin effect. High frequency may also work best on low silver content coinage. 7.5 kHz is typically better on copper coins. Test the detector for the items you want to find.