Quote:
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Originally Posted by Carl-NC
But you are willing to waste your life to promote and defend, on fake science based, funny mineoro crappy boxes. I understand "what for": for many.
Originally posted by Tim Williams
Carl is right. Use the formula and calculate from this site using different magnetic fields.
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The answer to Zocky-Zocky's question about the correct NMR frequencies was given accurately by Carl-NC and was confirmed to be correct by Tim williams the "LRL Man".
This formula was for the average 50nT field which is commonly used to represent the magnetic field found ont he earth.
Scroll up to see the correct answers. But keep in mind this answer is correct only for the average magnetic field of the earth.
The magnetic field where you are treasure hunting could be much more or less than 50 nT strength.
For example, look at the different field strengths reported by NOAA at different locations around the world today, and the NMR frequency we calculate from the formula:
45,745.0 nT = 34.143 Hz = Athens, Greece
23,277.5 nT = 17.374 Hz = Rio De Janiero, Brazil
43,737.0 nT = 32.645 Hz = Lisbon, Portugal
61,540.3 nT = 45.933 Hz = Tura, Russia
47,470.2 nT = 35.431 Hz = Los Angeles, USA
In addition, the direction of the magnetic field can vary between horizontal to vertical depending on the location where you are hunting.
If you are holding an instrument that relies on the magnetic field strength along its axis. then the strength could be severely diminished if the local field is predominantly vertical, while your instrument is held horizontally.
Read more about these errors in NMR frequencies starting here and scrolling down:
http://www.geotech1.com/forums/showt...670#post125670
After Tim Williams looked at the published facts about the earth's magnetic field, here is what he had to say:
"...you need to pick an area you are going to hunt and set for that area! I agree NOAA has different readings. I guess the science they are using is flawed! As I said I always check my mag and adjust accordingly".
In reality, the NOAA science is not flawed.
They simply don't have enough magnetometer stations to map out the field strength for every square meter of ground.
So they give averages for larger areas. And they give daily averages, without making any corrections for changes that happen during the course of a day.
The bottom line is if you want to know the true NMR frequency for a place where you are standing, then you need to use a magnetometer to determine the total magnetic field in that location. Then you can use this µT reading to replace the 50 µT assumed value in the formula:
You will see the NMR frequency for any element is meaningless until you know the local magnetic field. A magnetometer is required to determint the NMR of elements in a natural earth field.
Any other BS about what the true NMR frequency is for different elements is pure BS. But that is a nuther post to explain the history of NMR BS. so if you want to know the true NMR frequency, then get out your magnetometer and compute the frequency. It will be roughly between half and double the frequencies Carl gave for a 50 µT field.
Best wishes,
J_P