Ignore All Nulls?

[Neil in West Jersey]

The following quote was posted in response to another recent topic but it raised a question. I have been ignoring the nulls, especially the shallow ones. Will deep gold null out like iron? Am I possibly missing deep targets? The only deep targets I have dug that did not have a tone are the ones that are only picked up by the All Metal Channel.

Most of the gold that gets dug isn't the loud discriminating tones you'll hear. There always will be some loud gold but most is just a barely break in threshold!

 

[Neil]

Neil yes an out of range target can result in a null. Also swinging to fast can result in a null also. Always try and remember how slow the BBS units take to identify a target.
As far as most gold being barely audible or just a break in the threshold, I dont find that to be the case.
On detectors without a threshold in disc, you dont even know if youve passed over a disced out target so its kinda a double edged sword in that it helps but also makes you wonder and recheck targets on the sov/excal. try a very short and slow sweep over a null and see if that can further define it for you.

In all metal there are no nulls

 

[dewcon4414]

Ive switched over to PP to see what im missing. What im finding right now is a lot of jewelry, but mostly the stuff that sticks to a magnate. Ive found PP to be deeper.... i can tell the threshold changes easier with a constant sounding threshold as opposed to the pitch hold... which i believe may not change if the threshold over powers the weak signal. You learn quickly what a hair pin sounds like and some of the bottle caps. Now comes the question.... would you be better off if you are hunting this away with a PI? Id say yes IF.... your area isnt that trashy. Much like reverse disc you can also dig those weaker null signals while in disc.... or at least remove a half scoop to get a better signal. That might be a better way than reverse disc as a time saver. I dont know of any detector that wont swing to the negative side on really deep targets when i cant make a positive TID.

Dew

 

[GunnarMN]

I find that below 8" you can get a null on a good target so sheck in pinpont and if it is round sounding dig ,, gold really comes thru in pinpont, For example i have a 10" buried dime with sensitivity at 3:00 it will not make a sound but at 12:00 it will only make a null in pinpont it is a round sound , Iron in pinpont gives a hickup or a null , or a dubble beep or a somwhat hyper sound

 

[bootyhoundpa]

i only hunt in disc,but ive recently been hitting the local lake beaches which have been hit pretty hard ......i would recommend "working the nulls"... i scored 2 silver pendent earrings and 1 very light gold round earing this way.....where i was hunting targets were few and far between...so when ever the threshold nulls i stop and sweep that target a few times at different speeds and angles......every so often that null turns into a decent target ( repeatable signal ) that i would have missed if i only went by the 1st null.... i like to experiment with my better finds at home just to remind my brain what a good target sounds like...i tried this with the gold earing and could not get a signal ,kinda makes me wonder how i found it in the first place.....i can also tell you that ive had gold stud earings that would give a lousy tiny signal in disc and when i would switch over to all metal i would not get any response.......