My new Artemis LRL

[g-sani]

Be patient, I think our friend is on Easter holidays.

[Erevnitis]

Without reply !!!

Hello,
aft_72005 sorry about my delay to reply you,but i was busy and i haven't opened my computer at all.
This antenna helps to target centering.

Also i put the part3 video with target recovery,enjoy it

http://www.youtube.com/watch?v=WFUEA4Nmj-k

[Morgan]

Hello,
aft_72005 sorry about my delay to reply you,but i was busy and i haven't opened my computer at all.
This antenna helps to target centering.

Also i put the part3 video with target recovery,enjoy it

http://www.youtube.com/watch?v=WFUEA4Nmj-k

after the video i still not know what is the recovery object...
Not silver,not gold.

[aft_72005]

Hello,
aft_72005 sorry about my delay to reply you,but i was busy and i haven't opened my computer at all.
This antenna helps to target centering.

Also i put the part3 video with target recovery,enjoy it

http://www.youtube.com/watch?v=WFUEA4Nmj-k

Hi Erevnitis
Thanks for your attention .

[aft_72005]

Erevnitis, when you test area with metal detector , you had in big area over ground signal !!!!!?????,
But target wasn’t big size , my onion may be there are other big item in more deep .

[Erevnitis]

Erevnitis, when you test area with metal detector , you had in big area over ground signal !!!!!?????,
But target wasn’t big size , my onion may be there are other big item in more deep .

aft_72005 you have a good feeling,really i think there is something big under the object you see to the video,but...
Now the question is what this object is shown in video part3&part4,please i would like to hear your opinion

Here is the part4:

http://www.youtube.com/watch?v=yqrEVmBtWjw

Thank's for your patience,

Erevnitis

[Morgan]

aft_72005 you have a good feeling,really i think there is something big under the object you see to the video,but...
Now the question is what this object is shown in video part3&part4,please i would like to hear your opinion

Here is the part4:

http://www.youtube.com/watch?v=yqrEVmBtWjw

Thank's for your patience,

Erevnitis

About the object,seems aluminium and not more than 50 years old...

Or maybe is some WWII material ? careful with mines

[aft_72005]

Hi Erevnitis
I saw your webpage , your LRL boxes is very nice with elegance , and one thing interesting me,
You use IR transmitter type LED in your most project .
Please explain how it works??

[michael]

aft_72005 you have a good feeling,really i think there is something big under the object you see to the video,but...
Now the question is what this object is shown in video part3&part4,please i would like to hear your opinion

Here is the part4:

http://www.youtube.com/watch?v=yqrEVmBtWjw

Thank's for your patience,

Erevnitis

Hi, OK Erevnitis, we assume it a real long range detection, good.
As Morgan pointed, it seems to be Aluminum, or if is heavy highly possible is lead; maybe a part of ammunition.
Now question is: Did you recheck the location with Artemis ? to be sure this found object was the only cause of Artemis signal.

[humhum]

my LRL

Hi Erevnitis, I make test with my LRL before one year and it be very sensitive of Aluminum ( like your PD) from 100m . Why ? I not understand.
May be that not have classificator for gold. What you think?

[goldfinder]

What frequency?

Hi Erevnitis, I make test with my LRL before one year and it be very sensitive of Aluminum ( like your PD) from 100m . Why ? I not understand.
May be that not have classificator for gold. What you think?

If you are using a frequency in your LRLs what is that frequency? If not a frequency is there filters in your circuitry? It their resonance is not correct your unit may be picking up signals from other metals like the aluminum.
Goldfinder

[humhum]

If you are using a frequency in your LRLs what is that frequency? If not a frequency is there filters in your circuitry? It their resonance is not correct your unit may be picking up signals from other metals like the aluminum.
Goldfinder

I use filters for 50Hz.

[Dave J.]

geographic region makes a difference

Simple twin-T notch filter tuned for 60 Hz will knock out most aluminum and copper interference in the Americas. Oddly enough these materials seem to know where they're located and in most of the rest of the world their frequency is 50 Hz. For use worldwide, just cascade a 60 Hz notch with a 50 Hz notch and ya got it covered.

The original Fisher Gold Bug (approx. 1986) had a 60 Hz notch filter for knocking out those pesky aluminum and copper signals. The system was set up to nonetheless be able to detect a full can of beer, since ya wouldn't want to pass that up. Unfortunately we weren't able to keep it from detecting empty beer cans as well, even just a few drops of dried beer residue was enough to fool it. But that was the all-analog olden days. Nowadays we're working on a software app to solve the problem.

--Dave J.

[Qiaozhi]

Unfortunately we weren't able to keep it from detecting empty beer cans as well, even just a few drops of dried beer residue was enough to fool it. But that was the all-analog olden days. Nowadays we're working on a software app to solve the problem.

--Dave J.

.

[humhum]

Simple twin-T notch filter tuned for 60 Hz will knock out most aluminum and copper interference in the Americas. Oddly enough these materials seem to know where they're located and in most of the rest of the world their frequency is 50 Hz. For use worldwide, just cascade a 60 Hz notch with a 50 Hz notch and ya got it covered.

The original Fisher Gold Bug (approx. 1986) had a 60 Hz notch filter for knocking out those pesky aluminum and copper signals. The system was set up to nonetheless be able to detect a full can of beer, since ya wouldn't want to pass that up. Unfortunately we weren't able to keep it from detecting empty beer cans as well, even just a few drops of dried beer residue was enough to fool it. But that was the all-analog olden days. Nowadays we're working on a software app to solve the problem.

--Dave J.

My Filter is for Reject of 50Hz, and sensibility of other all frequency.

http://www.geotech1.com/forums/showthread.php?t=14475