Playing with my 705 today in my test garden..Observations and questions.

[yowow#1]

I was playing around in my test garden today with my 705 mostly with the quarters, "silver and clad" using 10.5 DD 7.5 khz. to see if there is any noticible difference between the silver and the clad, (no noticible difference to me) First in disc and then in AM, then in prospecting. (7" Quarters were hit and miss in disc). (Not great but definitely a diggable signal in AM). (Blow your ears off in prospecting)!! Which leads me to a question. I was wondering why there is such a significant difference in depth power between AM and prospecting? Aren't they both sort of AM mode? Could it be because even in AM the machine is still using power to I.D. and such? If prospecting can harness that kind of depth power, couldn't AM mode harness similar depth power? Just curious if anyone could enlightening me as to why the difference in AM and prospecting? Thanks for reading and Happy Hunting.

 

[argyle1]

The non-true All Metal mode is still run through the Discrimination Processing, it really only allows an open segmentation for all signals.
Where as Prospecting mode is a True All Metal mode without the additional processing needed to glean signals from, so it can penetrate deeper because a signal in prospecting mode ie: change of pitch ect... needs no extra processing to achieve a distinctive signal like a singular tone or multi tone.
And yep, it's the processing of signal response that looses depth.
The manual ground balance is the purist form of all metal on the XTerra's and with a audio change mod it is the deepest true all metal setting on them.
The Prospecting mode works/correlates directly through the 'open' manual ground balance mode and in conjunction with tracking, if used, uses the least amount of processing on the units.

 

[yowow#1]

Thanks Argyle1. So if i am thinking this correctly, if i want to search for deeper targets that i might be missing in AM, i could use prospecting mode and all i would lose is I.D. basically? And if i hunt in AM i am typically gonna dig every target anyway regardless the I.D. and prospecting is definitely deeper. Thanks and HH...

 

[argyle1]

Yep....A lot of times in All Metal when the sensitivity is set right, very feint iron hits, repeatable or not, or jumping from iron to up-scale TID's, are actually good targets but are just out of reach of our 705's ID in All Metal and won't even come through at all if any discrimination is bought into play.
(Same for all VID and TID units)
So if your after the deep signals and want to dig it all, definitely use Prospecting Mode if the ground allows use of it by the way of lack of tiny tiny foil and iron ect.
Have a listen to the ground in Ground Balance Mode and run with a more Positive Balance setting over a target (the Ground Balance Mode is the most pure all metal mode ever put on a detector so you'll hear true undetectable small iron halo's in there) .... and then listen to the targets with an Even Balance and Negative balance as well.

You'll learn how to "bring a deep signal up" or how to "smooth-out" another different deep signal.
It'll give you a good clue as to how the Ground Balance Offset works and how to get the Deepest out of the Prospecting Mode, and how to run it super smoooth on the ground you're on.
You'll also be able to hear and work out why some deep signals come through jumpy or not at all when changed over to Disc or All Metal mode's.