6” coil question?

[CarsonChris]

I had tough hunting conditions today. Lots of iron and lots of EMI. I was using the stock coil. I could slowly move the stock coil an inch and go from iron grunt to high tone. In lots of areas I couldn’t get my coil off iron. Constant low tone.

I think the 6” coil will squeak out some coins in the iron.

Is the 6” coil less susceptible to EMI?

 

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[HighVDI]

General rule of thumb is smaller coils tend to be less affected by EMI. I don't know what Sens. you're running but try backing it off some. I recently got on a yard permission with terrible EMI and trash conditions. Ended up having to dial back the gain to 14! Found 3 mercs and a silver pendant shorty after at a solid 6".

 

[Truth]

Yes but back off to 20-21 on the 800. My 6” helps the 800 in iron which isn’t it’s strong point.

 

[CarsonChris]

Yes, but what machine are you using?

Nox 800. Was running 15-16 on sensitivity. Anything more and the EMI would take over. It would also get EMI every time I lifted the coil. Had to constantly lift the coil to get through thick weeds. Sweep speed 6.

 

[HighVDI]

Could also try a higher single frequency.

 

[JoeVal]

Had my 6” coil on the 600 at a local park that houses a cell phone tower. There was nothing I could do to get rid of the EMI, and I tried everything...lower sensitivity, single frequency, ground balance manually...nothing would work. So I put in the 11” coil and had the same problem.

Aside from that park, I have had ZERO EMI issues with the 6” coil.