Changing frequency up average the numbers?

[Ronstar]

On the F75SE, one can toggle through 6 other freqs to help subdue EMI. Today at a park I was was bothered by some EMI so toggled up to see if I could get it to go away. F3 ended up being the best and at 80 sens I had just a tiny bit of chatter.
I hit a 35 tab with a couple 34s that were solid so I dug, nickel! Ok, kept going and it happened again. 35-36 then a 34 flash, dug again and nickel. Ok, nickels usually hit 29-32 depending on soil (I think thats the prevailing factor), what is happening here? I will usually pass low tab numbers as mostly broken tabs or canslaw chunks. So I started digging these low tab numbers if a nickel number flashed, ended up with 10 nickels out of the one area and I’ve never done that before.
So the question is…….. are some of those F2 to F7 freqs better at detecting nickels? Or other targets? Why would the VDI up average a couple numbers?? Even dimes were showing 74-76 and some quarters were 85-86. Does anyone know what the freq numbers are? Not in the manual…..

 

[jim tn]

I don't recall that ever happening with me when doing a frequency switch. But, I seldom dug 35-37 numbers, either. And, the F 75 is a good nickel finder.

Ron, when doing a frequency shift, the frequency number of each frequency F 1-F7 shows on the screen. Very small difference in each shift.

Any dramatic change in typical G B numbers? HH jim Tn

 

[miserman]

I've never noticed this happening, but in "theory" it may be possible. Whenever there is ANY amount of EMI present, the detector function is compromised, even if it's a small amount. The idea behind frequency shift is to rid the detector of the interference so it can operate at peak performance. This peak performance "could" then translate into higher numbers. Any experimenting on frequency shift vs number readings would best be tried away from any known EMI sources. It would be somewhat beneficial to know for sure. Nice post Ronstar.

 

[Ronstar]

GB was consistent for the area and I kinda thought about that. The EMI, I think, is generated from something under ground rather than overhead. GB was choppy but the numbers were where I thought they should be. In my case (area) F3 seems to be the go to freq.
It was a weird situation but it sure got me to thinking…….had to rethink the numbers on site, so why? Maybe I shouldnt worry and just dig the solid sounds but thats not how I rock and roll.