September 16, 2009
VTEM detects the Night Hawk Lake conductor from 705 m above.
Read the case study (PDF)
March 24, 2009
BENTON RESOURCES, ROYAL ROADS & GOLDEN DORY APPROVE 2009 PROGRAM FOR LONG RANGE NICKEL JOINT VENTURE, NEWFOUNDLAND – DRILL TARGETS IDENTIFIED
"... Among the targets selected for further work is a 600 metre long VTEM conductive anomaly described by Geotech Ltd. as “a relatively strong conductor consistent with massive sulphides”. This target has been selected for testing by diamond drilling, and it is anticipated that additional targets will be developed from results of the prospecting and ground geophysical surveys."
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VTEM | Airborne Gravity | AFMAG | Hummingbird | Hawk
Hawk
Features:
- Totally digital on site programmable frequencies
- Up to ten frequencies
- Wide-band composite signal transmitter
- Dipole moment up to 1700 nia
- Z and X axis dual geometry coplanar coils
- Frequency range 200 Hz to 25 kHz
- 1 ppm resolution
- Digital signal filters and 50/60 Hz rejection
- Automatic calibration and phasing
- Built in data acquisition
- Z axis coil system option
| Specifications: | |
|---|---|
| Transmitter coils orientation: | X AXIS, Z AXIS OPTIONAL |
| Receiver-transmitter coils : | Wing-tip mounts |
| Number of frequencies: | 1 - 10 (with restrictions) on site selectable and distributable between coils distributable between coils |
| Frequency range: | 200 Hz - 12.5 kHz for dual coils system 200 Hz - 25.0 kHz for single coil system |
| Max. total dipole moment: | 1770 NIA For 1.0 sq. m coils; (depends on frequency set) |
| Signal filters: | digital, 10 Hz bandwidth |
| Industrial noise rejection: | digital, 50/60 Hz |
| Sferics rejection: | digital, 3 levels |
| Output | In-phase and quadrature (PPM) Resolution: 1 ppm |
| Max sampling rate: | 10 per sec. |
| Data filters time constant: | 0.1 - 1.0 sec. |
| (SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE) | |