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COG mode on fresh water beaches ?
Posted by: dfmike
Date: August 12, 2017 07:36PM
Just wondering if I'd gain anything by using COG mode on fresh water beaches as opposed to salt water beaches ? It rains here quite often so the beaches I hunt are rarely dry. I thought COG mode might help me in the wet highly compacted sand.

Can I expect to lose much depth compared to DI2 for example ?

Thanks.



Active detectors: Fisher F5 , Fisher F19 LTD, Nokta Fors CoRe, Makro pointer and way too many coils.
Previous detectors: Bounty Hunter Discovery, Fisher F44, Omega 8000 V6, Minelab X-Terra 705

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Re: COG mode on fresh water beaches ?
Posted by: Tom Slick
Date: August 12, 2017 10:08PM
The advantage to using the COG mode is that it allows the detector to ground balance down to the salt. There will be no advantage to using COG on fresh water beaches rather wet or dry.



Arizona
42 years detecting, ex White's dealer.
Current Detectors:
Nokta Impact
Makro Racer 2
Makro Gold Racer
White's DFX x 3
Tesoro Tiger Shark
Minelab Sovereign GT
Fisher F19

Re: COG mode on fresh water beaches ?
Posted by: shelton7522
Date: August 13, 2017 02:14PM
On plowed field after switch to COG we get perfect silent. Almost no ground respond ;)

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Re: COG mode on fresh water beaches ?
Posted by: dfmike
Date: August 13, 2017 03:48PM
Thanks Tom Slick. I guess there COG mode will be of no use to me then.



Active detectors: Fisher F5 , Fisher F19 LTD, Nokta Fors CoRe, Makro pointer and way too many coils.
Previous detectors: Bounty Hunter Discovery, Fisher F44, Omega 8000 V6, Minelab X-Terra 705

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Re: COG mode on fresh water beaches ?
Posted by: Mudwhale
Date: August 13, 2017 06:39PM
Quote
Tom Slick
The advantage to using the COG mode is that it allows the detector to ground balance down to the salt. There will be no advantage to using COG on fresh water beaches rather wet or dry.

No benefit whatsoever with fresh water beaches. I had to use it today for a brief period because My machine went crazy over a small piece of ground and would not ground balance. After that all was good. I think it was discarded coal in the area.

Thanks Tom!



Nokta IMPACT,Garret GTAX-550, Garret Pro Pointer, Garret digger, Predator Tools Piranha shovel and 100% DEET!!

Re: COG mode on fresh water beaches ?
Posted by: Doctorcoinz
Date: August 13, 2017 06:47PM
You will loose up to 45% depth in cog mode when compared to deep mode. To work on salty conducting sands the sensitivity is reduced INSIDE the machine. by the software.

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Re: COG mode on fresh water beaches ?
Posted by: Mudwhale
Date: August 13, 2017 07:05PM
Quote
Doctorcoinz
You will loose up to 45% depth in cog mode when compared to deep mode. To work on salty conducting sands the sensitivity is reduced INSIDE the machine. by the software.
Yes but sometimes you need to do this to get the machine to behave... Like for me today...



Nokta IMPACT,Garret GTAX-550, Garret Pro Pointer, Garret digger, Predator Tools Piranha shovel and 100% DEET!!

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Re: COG mode on fresh water beaches ?
Posted by: Tom Slick
Date: August 13, 2017 10:21PM
One thing I didn't mention in my earlier post is that COG mode can also be used sometimes in areas with exceptionally high EMI to help calm the detector down when the frequency shift doesn't help.



Arizona
42 years detecting, ex White's dealer.
Current Detectors:
Nokta Impact
Makro Racer 2
Makro Gold Racer
White's DFX x 3
Tesoro Tiger Shark
Minelab Sovereign GT
Fisher F19

avatar
Re: COG mode on fresh water beaches ?
Posted by: Mudwhale
Date: August 14, 2017 07:18AM
This is what I had to do yesterday! :thumbup:



Nokta IMPACT,Garret GTAX-550, Garret Pro Pointer, Garret digger, Predator Tools Piranha shovel and 100% DEET!!

Re: COG mode on fresh water beaches ?
Posted by: shelton7522
Date: August 14, 2017 11:21AM
Quote
Tom Slick
One thing I didn't mention in my earlier post is that COG mode can also be used sometimes in areas with exceptionally high EMI to help calm the detector down when the frequency shift doesn't help.

Interesting idea.

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