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GSM-19T Proton Precession Magnetometer /
Gradiometer / VLF system Version 6

GSM-19T v6.0 Proton Precession
Magnetometer/Gradiometer/VLF system
The new v6.0 system is the industry’s latest innovation
in proton precession design - with many new technologies
that deliver significant benefits for geophysical
applications.
Key technologies include:
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Integrated GPS option (the
only system with fully built-in GPS)
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25% increase in sensitivity
over v5.0 systems
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Enhanced memory (increased by 8
times to 4 Mbytes standard and expandable to 32
Mbytes)
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Programmable base station (for
scheduling base stations in one of three modes)
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Optional DGPS real-time and
post-time processing (for metre to sub-metre
positioning accuracy)
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Faster data transfer
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Internet-based upgrades (from
the office or field)
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And all of these technologies
come complete with the most attractive prices and
warranty in the business!
For geophysical survey groups who
require a complete solution for end-to-end magnetic data
acquisition at an affordable price, the QuickTrackerTM
(GSM-19T) proton precession family is the proven choice
- for even the most challenging environments.

From robust field units to
efficient survey modes to fast data downloading,
QuickTracker is carefully designed to deliver the
maximum value in a proton precession system.
The GSM-19T also provides numerous
technologies that differentiate it from other systems.
For example, it is the only proton precession system
with integrated GPS (optional) for high-sensitivity,
accurately-positioned ground surveys.
With other v6.0 upgrades,
QuickTracker also leads in sensitivity, memory, base
station technology, and other key areas.
Designed from the Ground Up
Leading the list of advances is
rover unit which features a 25% increase in sensitivity
-- reflecting new processing algorithms and
implementation of the latest RISC microprocessors.
In addition, v6.0 standard memory
is 4 Mbytes (expandable in 4 Mybte increments) which
translates into 209,715 readings of line / station data
or more than 600,000 readings for base station units.
The new memory capacity sets an
industry standard, but more importantly, it means that
operators can now handle even the largest surveys with
ease.
Another important innovation its
unique programmable base station which you can enable
via either a field unit or a Personal Computer as
follows:
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Daily scheduling (define
working hours and minutes each day). This mode
provides economy of memory and battery usage on a
daily basis.
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Flexible scheduling (up to 30
on / off periods). Simply define a series of
intervals and the base station will turn itself on
as you need. This mode provides the greatest
flexibility for longer surveys where leaving your
base station running increases efficiency.
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Immediate start. This mode is
the traditional mode of starting a base station unit
and leaving it until the operator can return to turn
off the unit.
Survey Planning & Efficiency
One of the traditional challenges
in ground magnetometer / gradiometer surveys is ensuring
that surveys are designed and implemented as effectively
as possible.
This v6.0 proton precession system,
includes additional capabilities, such as the Walking
Mag option that enables the operator to sample while
walking. Though there is some increase in noise, many
users find this is balanced by improved field
productivity. Having nearly continous data on survey
lines also helps increase the accuracy of
interpretations.
Another innovation is GPS way point
pre-programming. Now you can define a complete survey in
the office on your Personal Computer and download this
information directly to a rover unit via RS-232. Then,
the operator simply performs the survey using the points
as their survey guide -- with a resulting decrease in
errors and more rapid survey completion.
Survey Operations
QuickTracker also helps the
operator on a daily basis while performing surveys. A
key feature is the easy-to-read LCD data display in
graphical (or text) format along with a signal quality
indicator to determine when readings need to be
repeated.
And, although v6.0 proton
precession unit is very tolerant to gradients, it also
provides a warning indicator so that the operator can
monitor data quality continuously. Other features
operators appreciate include easy-to-use line and
station incrementing -- as well as end-of-line
indicators.
Fast Data Transfer
Another traditional area in
which time is lost in surveys is in data transfer. The
v6.0 addressed this in several ways:
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Data download is tripled to 115
KBaud (fastest rate possible with RS-232).
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PC-based data reduction is now
possible using an upgraded data transfer software
version.
GPS & Other Software
Aegis Instruments recently became
the only supplier to provide a fully integrated GPS
option for its line of proton precession products. Along
with metre to sub-metre positioning options, the new
processing functionality enables users to take advantage
of the benefits of GPS.
GPS Capabilities
Pre-programming of way points.
Post-processing of GPS data. DGPS
option enables transfer of GPS data for post-processing
and merging via 3rd party software.
Precise time synchronization of
field and base station units. This capability is
particularly important for working in noisy magnetic
conditions and provides the highest accuracy possible.
In addition to its own software,
Aegis Instruments is also pleased to offer a variety of
data analysis and processing software from 3rd party
developers.
Specifications
Performance
| Sensitivity: |
< 0.1 nT |
| Resolution: |
0.01 nT |
| Absolute Accuracy: |
1 nT |
| Dynamic Range: |
10,000 to 120,000 nT |
| Gradient Tolerance: |
Over 7000 nT/m |
| Sampling Rate: |
2 reading per second up to
60 sec |
| Operating Temperature: |
-40C to +60C |
Operating Modes
|
Manual: |
Coordinates, time, date and reading stored
automatically at minimum 2 readings per
second interval. |
| Base
Station: |
Time, date
and reading stored at 2 to 60 second
intervals. |
| Remote
Control: |
Optional
remote control using RS-232 interface. |
| Input /
Output: |
RS-232 or
analog (optional) output using 6-pin
weatherproof connector. |
Storage - 4Mbytes (# of
Readings)
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Mobile: 209,715
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Base Station: 699,050
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Gradiometer: 174,762
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Walking Mag: 299,593
Standard Components
GSM-19T console, Data transfer
software, batteries, harness, charger, sensor with
cable, RS-232 cable, staff, instruction manual and
shipping case.
Optional VLF
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Frequency Range: |
Up to 3
stations between 15 to 30.0 kHz |
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Parameters: |
Vertical
in-phase and out-of-phase components as % of
total field. 2 relative components of the
horizontal field. |
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Resolution: |
0.1% of
toal field |
Ongoing Maintenance and Support
As a potential user of a GSM-19T
system -- the industry’s end-to-end magnetometer /
gradiometer solution -- you should also know that we
stand by our technologies, products and services.
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