IGSL

[golfnut]

What do we get if we use components that have much more power?

You use up the battery faster and may not comply with EMI/EMC compliance.


What do we get if we increase Tx power.

Mostly, Air tests get better.



Maybe so we can increase the depth IGSL or PI detectors?

need to track the ground signal in real time and remove its effect


What are your opinions? has anybody tried this experiment?

Some have, more power can give you more depth, but use the car headlamp analogy.


If it is a bit foggy/misty the instinctive reaction is to put the main-beam lamps on. What happens is, the reflected light goes up and it blinds you. This is like more Tx power - you have more ground signal to cope with. If you get rid of the extra ground signal you would have a little more depth.

Dont forget coil size. even XP give a large coil for depth, and the 3030 coil is big.



The question is:
Why is DEUS much deeper when it's actually the same as IGSL?
what gives him the depth?


I would guess it has a well partitioned system in terms of noise, gain, and gain distribution. The system will be well designed and all of the components will be as good as they can get. There will be no corners cut. Clever system design, electro mechanical design, good components, good software algorithms, good testing prior to launch.
There will be a solid automatic gain control with a fast response time to enable the RX AtoDs to maintain the same input level for all target masses. This helps give consistant phase information of alloys or vdi number.

The filters in the DSP section will have a response that can remove ground signals from low frequency motion signals in the 1,2,3Hz region. These are normally present in RC filtered vlfs, as the frequency roll off of the filters is not sharp enough to remove them whilst keeping target signals centered on 8Hz



The battery is small, so it does not put out masses of tx signal, or it would flatten in a few hours

It does not transmit multiple frequencies simultaneously.


The Rx preamp and the Tx system is in the coil head. Tx and Rx losses are then negligible. helps getting all of the available Tx signal out and all of the Rx signal in.

Tolerance to external noise signals is more defined, as there is no randon coiled cabling to the head unit box. Pick up from the Tx cable cant re-radiate picked up noise in the head box, as there is none.


The other thing that standard analog vlfs do is use the positive going signal blip to trip a comparator. Either side of this positive blip is an associated negative going blip. These 2 blocks of signal energy are wasted in normal machines. If you did an algorithm to look at these two extra blocks of signal you could add about 25% to the received signal power.

S

[labtec1]

I noticed some inconsistencies:
if the Tx coil wire 97 rounds 0.25 -6.00 mH Rx coil wire 107 rounds 0.25-6, 50 mH how it could be for Delta Pi coil diameter of 25 cm, 22 to 28 rounds 0.50 wire between 350 and 500 mH as it is written in the topic delta pulse.
Maybe I lose something you understand. please help because it is not logical to meno.

[labtec1]

just the right handle (bar) to carry the probe and detector.
I came up with the idea to use it in an old fishing rod but it is made of carbon fiber and is very easy
rinsing is whether the carbon that enters a fault since it is very close to the probe. We know that carbon conducts electricity and it is very dangerous to use when the storm and lightning
Your opinion given can be used for IGSL for Delta Pi

[liekwang]

Labtec try testing in real on the ground I would like to know what you think

[labtec1]

thank Liekwang

[labtec1]

Thank Qiaozhi
I finished 4 days ago IGSL and made TGSL DD probe but the results were average.
coins 5e can detect in the air most of the 25-30 cm
How can we increase the depth I see that on this forum has a very educated members.
I thank you all for your help and answers

[liekwang]

labtec1

?Labtec sorry I mean VLF

[Qiaozhi]

I did not really understand
What's VLP?
I'm sorry my English is very bad

It looks like a typo.
He means VLF (Very Low Frequency).

[labtec1]

?I prefer PI type simple to create a coil type VLP difficult to homemade and coil for my current build ISGL but can not eliminate the flow of the Earth in the air was very good in the field of real not good many false signals,

I did not really understand
What's VLP?
I'm sorry my English is very bad

[labtec1]

What do we get if we use components that have much more power?
What do we get if we increase Tx power. Maybe so we can increase the depth IGSL or PI detectors?
What are your opinions? has anybody tried this experiment?
The question is:
Why is DEUS much deeper when it's actually the same as IGSL?
what gives him the depth?

[liekwang]

davor

?2 box type MD What VLF or PI

[liekwang]

labtec1

?I prefer PI type simple to create a coil type VLP difficult to homemade and coil for my current build ISGL but can not eliminate the flow of the Earth in the air was very good in the field of real not good many false signals,

[Davor]

How about a 2 box?

[labtec1]

which is the deepest detector that you made?
whether it is possible to IGSL or Delta Pi device to be much deeper than it is now (if there are some repairs)

[liekwang]

?Labtec I've ever made that pulse and delta is so bad what its detection when walking near a metal coil and still no sound and when it is in keep new sound ..!! I am going to try which one is best for PI