If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Adrok’s technology works by sending a narrow light beam of energy into the ground using micro and radio waves. The beam is then reflected back by the various rock layers and the energy changed by the materials it has passed through on the way.
Reaching great depths, it learns how different substances, including hydrocarbons, interact with the light waves passing through them and pinpoints their composition. The technology measures dielectric permittivity of rock layers in the ground and characterizes the nature of the rock types based on spectroscopic analyses of the resonant energy response from Adrok’s transmitted beams reflected back from the ground.
Adrok’s scanner illuminates the ground by transmitting and receiving invisible lased EM energy.
The beam is: Pulsed, Coherent (narrow band) Focused for minimal dispersion Collimated (cylindrical shaped), and contains resonant microwave and radiowave frequencies
Adrok’s ADR Scanner delivers output measurements based on: Dielectric Permittivity Resonant behaviours of molecules Spectroscopy
Registered Member #1792
Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527
In principle what they describe is possible, you can analyze materials and their depth based on the spectrum, magnitude, angle, and time of arrival of the reflections off of different materials.
I'd have some doubts mainly about how deep a system like this can penetrate into the earth, and how well they can focus their source radiator given the small size. The devil is in the details as to how well it works, but they're not making up new physical principles.
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Ever noticed how a car radio fades when you go under a bridge? Tried using a GPS indoors? That gives you a very good idea how well radio waves and microwaves penetrate the ground. The idea is total moonshine.
That's before we start asking about how to focus or collimate radio waves at anything other than rather high frequencies.
... not Russel! Registered Member #1
Joined: Thu Jan 26 2006, 12:18AM
Location: Tempe, Arizona
Posts: 1052
It sounds like a really cruddy description of ground penetrating radar. It works, but penetration is measured in centimeters or meters, not kilometers.
In recent years, the technology for the production of laser light has become widely available, and applications of this medium to the examination of materials are constantly expanding. Whereas the earlier applications concentrated on the use of visible laser light, the development of systems using invisible laser light are now being further explored.
Ah, of course, invisible laser light.
The conditioned pulse of photons passes through the structure of the atom and emerges to encounter more atoms further along its path.
.... right.
In order to unambiguously identify the material in question the software does not necessarily need to know the specific values of ε, μ and σ, which, per se, may not necessarily identify the unknown material in question, but it may be necessary to establish 10 or 12 (or more) other mathematical or statistical relationships related to the energy-frequency spectra of the unknown material in question, to establish from the ADR control database of such parameters unquestionably what the material’s code is by the software’s logical expert systems method of discrimination.
Haha... what?
Proprietary adjustment of wave prior to emission of energy from the system
Sure, you just get in there and adjust that wave so that it can pass through kilometers of solid rock. I'll bet it's proprietary.
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Sounds like the old trick with the photocopier, warmed over for the 21st century!
I can't remember the source, but Elf were involved in a scam where the "oil finding machine" turned out to be a photocopier with an already published map of the oilfield in it.
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
The inventor's US patent claims that his device has successfully detected shipwrecks on the sea bed, and can also detect 'explosives, contraband substances, and in particular narcotics'.
Registered Member #2901
Joined: Thu Jun 03 2010, 01:25PM
Location:
Posts: 837
I guess that with really optimistic assumptions about the ground (ie. sand at some high altitude with deep ground water levels) you could have ground penetrating radar achieve some significant debt ... but how the hell is this supposed to work with sea water ... you aren't even going to scan to a meter.
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Sea water is "interesting". It absorbs radio waves but not magnetic fields, as these typically go through anything except ferrous metals. This is how the wreck finders work, by detecting the weak variation in the Earth's magnetic field caused by metal getting in the way of the field and distorting the flux lines.
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.