Curtiss Wright Controls GSMK4 Geoscope Mk4 User Manual 2013 GeoScope Mk4

3d-radar as

GeoScope™ User’s Manual

Model Geoscope Mk4

Document Version 2.0

3d-radar as

GeoScope

TM

User’s Manual

Contact Details

3d-Radar AS

Klæbuveien 196B

NO-7037 Trondheim, Norway

(+47) 7289 3200 Phone

(+47) 7289 3201 Fax

www.3d-radar.com

Copyright and Trademarks

3d-Radar, GeoScope

TM

is a trademark of 3d-

Radar AS. Microsoft, Windows, and Windows XP

are either registered trademarks or trademarks

of Microsoft Corporation in the United States

and/or other countries. All other trademarks are

the property of their respective owners.

Release Notice

This is the March 2013 release of the GeoScope

User’s Manual. It applies to the GeoScope Mk4

radar. The following limited warranties give you

specific legal rights.

Hardware Limited Warranty

3d-Radar warrants that this 3d-Radar hardware

product (the“Product”) shall be free from defects

in materials and workmanship and will

substantially conform to 3d-Radar’s applicable

published specifications for the Product for a

period of one (1) year, starting from the date of

delivery. The warranty set forth in this

paragraph shall not apply to software/firmware

products.

User Software and Firmware License,

Limited Warranty

This 3d-Radar User Software and/or Firmware

product (the “Software”) is licensed and not

sold. Its use is governed by the provisions of the

applicable End User License Agreement

(“EULA”), if any, included with the Software. In

the absence of a separate EULA included with

the Software providing different limited warranty

terms, exclusions, and limitations, the following

terms and conditions shall apply. 3d-Radar

warrants that this 3d-Radar Software product

will substantially conform to 3d-Radar’s

applicable published specifications for the

Software for a period of ninety (90) days,

starting from the date of delivery.

Warranty Remedies

3d-Radar's sole liability and your exclusive

remedy under the warranties set forth above

shall be, at 3d-Radar’s option, to repair or

replace any Product or Software that fails to

conform to such warranty (“Nonconforming

Product”), or refund the purchase price paid by

you for any such Nonconforming Product, upon

your return of any Nonconforming Product to 3d-

Radar in accordance with 3d-Radar’s standard

return material authorization procedures.

Warranty Exclusions and Disclaimer

These warranties shall be applied only in the

event and to the extent that: (i) the Products

and Software are properly and correctly

installed, configured, interfaced, maintained,

stored, and operated in accordance with 3d-

Radar’s relevant operator's manual and

specifications, and; (ii) the Products and

Software are not modified or misused. The

preceding warranties shall not apply to, and 3d-

Radar shall not be responsible for defects or

performance problems resulting from (i) the

combination or utilization of the Product or

Software with products, information, data,

systems or devices not made, supplied or

specified by 3d-Radar; (ii) the operation of the

Product or Software under any specification

other than, or in addition to, 3d-Radar's

standard specifications for its products; (iii) the

unauthorized modification or use of the Product

or Software; (iv) damage caused by accident,

lightning or other electrical discharge, fresh or

salt water immersion or spray; or (v) normal

wear and tear on consumable parts (e.g.,

batteries).

THE WARRANTIES ABOVE STATE 3D-RADAR'S

ENTIRE LIABILITY, AND YOUR EXCLUSIVE

REMEDIES, RELATING TO PERFORMANCE OF

THE PRODUCTS AND SOFTWARE. EXCEPT AS

OTHERWISE EXPRESSLY PROVIDED HEREIN,

THE PRODUCTS, SOFTWARE, AND

ACCOMPANYING DOCUMENTATION AND

MATERIALS ARE PROVIDED “ASIS” AND

WITHOUT EXPRESS OR IMPLIED WARRANTY OF

ANY KIND BY EITHER 3D-RADAR AS OR ANYONE

WHO HAS BEEN INVOLVED IN ITS CREATION,

PRODUCTION, INSTALLATION, OR

DISTRIBUTION, INCLUDING, BUT NOT LIMITED

TO, THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE, TITLE, AND

NONINFRINGEMENT.

THE STATED EXPRESS WARRANTIES ARE IN

LIEU OF ALL OBLIGATIONS OR LIABILITIES ON

THE PART OF 3D-RADAR ARISING OUT OF, OR

IN CONNECTION WITH, ANY PRODUCTS OR

SOFTWARE. SOME STATES AND JURISDICTIONS

DO NOT ALLOW LIMITATIONS ON DURATION OR

THE EXCLUSION OF AN IMPLIED WARRANTY, SO

THE ABOVE LIMITATION MAY NOT APPLY TO

YOU.

Limitation of Liability

3D-RADAR’S ENTIRE LIABILITY UNDER ANY

PROVISION HEREIN SHALL BE LIMITED TO THE

GREATER OF THE AMOUNT PAID BY YOU FOR

THE PRODUCT OR SOFTWARE LICENSE. TO THE

MAXIMUM EXTENT PERMITTED BY APPLICABLE

LAW, IN NO EVENT SHALL 3D-RADAR OR ITS

SUPPLIERS BE LIABLE FOR ANY INDIRECT,

SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

DAMAGES WHATSOEVER UNDER ANY

CIRCUMSTANCE OR LEGAL THEORY RELATING

IN ANY WAY TO THE PRODUCTS, SOFTWARE,

AND ACCOMPANYING DOCUMENTATION AND

MATERIALS, (INCLUDING, WITHOUT

LIMITATION, DAMAGES FOR LOSS OF BUSINESS

PROFITS, BUSINESS INTERRUPTION, LOSS OF

BUSINESS INFORMATION, OR ANY OTHER

PECUNIARY LOSS), REGARDLESS OF WHETHER

3D-RADAR HAS BEEN ADVISED OF THE

POSSIBILITY OF ANY SUCH LOSS AND

REGARDLESS OF THE COURSE OF DEALING

WHICH DEVELOPS OR HAS DEVELOPED

BETWEEN YOU AND 3D-RADAR. BECAUSE SOME

STATES AND JURISDICTIONS DO NOT ALLOW

THE EXCLUSION OR LIMITATION OF LIABILITY

FOR CONSEQUENTIAL OR INCIDENTAL

3d-radar as

GeoScope

TM

User’s Manual

DAMAGES, THE ABOVE LIMITATION MAY NOT

APPLY TO YOU.

Regulations and Safety

The GeoScope Ground Penetrating Radar

comprises a radar transmitter and receiver.

Regulations regarding the use of the radars vary

greatly from country to country. In some

countries, the unit can be used without obtaining

an end-user license. Other countries require

end-user licensing. Consult your local

communications governing agency for licensing

information. Before operating this radar,

determine if authorization or a license to operate

the unit is required in your country. It is the

responsibility of the end user to obtain an

operator’s permit or license for this Ground

Penetrating Radar for the location or country of

use.

STATEMENT ACCORDING FCC

This device complies with Part 15 of the FCC

Rules. Operation is subject to the following two

conditions: (1) This device may not cause

harmful interference, and (2) this device must

accept any interference received, including

interference that may cause undesired

operation.

Any changes or modifications not expressly

approved by 3d-Radar may void the user's

authority to operate the equipment.

STATEMENT ACCORDING INDUSTRY

CANADA

Per RSS-Gen, Section 7.1.3 This device complies

with Industry Canada license-exempt RSS

standard(s). Operation is subject to the following

two conditions: (1) this device may not cause

interference, and (2) this device must accept

any interference, including interference that may

cause undesired operation of the device.

This Ground Penetrating Radar Device shall be

operated only when in contact with or within 1 m

of the ground. This Ground Penetrating Radar

Device shall be operated only by law

enforcement agencies, scientific research

institutes, commercial mining companies,

construction companies, and emergency rescue

or firefighting organizations.

Selon RSS-Gen section 7.1.3, cet appareil est

conforme aux normes "Industry Canada license-

except RSS standards". Son fonctionnement est

soumis aux deux conditions suivantes: (1) cet

appareil ne doit pas provoquer d'interférences,

et (2) cet appareil doit accepter toute

interférence, y compris les interférences pouvant

provoquer un fonctionnement indésirable de

l'appareil.

Ce dispositif de radar à pénétration du sol ne

doit être utilisé que lorsqu'il est en contact avec

ou à moins de 1 m du sol. Il ne doit être mis

en œuvre que par les services officiels

d'investigation, les instituts de recherche

scientifique, les sociétés minières commerciales,

les entreprises de construction et les organismes

de secours d'urgence ou de lutte contre les

incendies.

Safety

EXPOSURE TO RADIO FREQUENCY RADIATION

The radiated power of the radar antenna is

approximately 10mW. This is a very low RF

power. However, we recommend to maintain a

minimum separation distance of 10 cm

(approximately 4 in.) between yourself and the

bottom side of the radiating GPR antenna to

avoid any harmful radiation levels.

3d-radar as

GeoScope

TM

User’s Manual

Table of Contents

Table of Contents .................................................................................. 1

Abbreviations ........................................................................................ 1

1 Introduction .................................................................................... 2

1.1 3d-Radar Technology .................................................................. 2

1.2 Collect up to 41 survey lines simultaneously .................................. 3

1.3 Multi-offset recording (optional) ................................................... 5

1.4 Accessories/options .................................................................... 6

2 Hardware Components ..................................................................... 8

2.1 GeoScope Unit ........................................................................... 8

2.2 Aux connector ........................................................................... 9

2.3 GPS input .................................................................................. 9

2.4 Distance Measurement Instrument (DMI) .................................... 10

2.5 Power Supply........................................................................... 11

2.6 Control Computer ..................................................................... 11

3 Antenna Array ............................................................................... 13

3.1 Antenna Trailer ........................................................................ 13

4 Operation ..................................................................................... 16

5 Maintenance ................................................................................. 18

5.1 Cleaning air filter ..................................................................... 18

5.2 Cleaning of connectors .............................................................. 18

5.3 Cleaning the antenna array ....................................................... 18

Abbreviations

DMI Distance Measurement Instrument (encoder wheel)

GPR Ground Penetrating Radar

SFCW Step-frequency Continuous Waves

TX Transmitter

RX Receiver

3d-radar as

GeoScope

TM

User’s Manual

1 Introduction

This document contains the user manual for the GeoScope™ Mk4 ground

penetrating radar system, designed and manufactured by 3d-Radar AS, see

http://www.3d-radar.com. The purpose of this document is to explain how to

assemble the hardware and use the GeoScope software. GPR and signal

processing theory is not covered by this manual. Some guidelines for

configuring the waveform will be provided.

1.1 3d-Radar Technology

The GeoScope is a three-dimensional step-frequency ground penetrating

radar. The GPR transmits electromagnetic waves through an antenna array

and measures the echo from layers and objects in the subsurface. The depth

of the objects is found by measuring the travel time from the signal is

transmitted until the echo is received. A depth estimate is obtained by

multiplying this time with the wave velocity of the signal.

The GeoScope

TM

GPR is the fastest step-frequency radar on the market. By

using a digital frequency source instead of traditional phase-locked loop

technology, the GeoScope

TM

can generate waveforms from 140 MHz up to 3

GHz. The step-frequency technique has a coherent receiver which means that

the whole waveform length is used as 100% efficient integration time. By

comparison, impulse GPRs use stroboscopic sampling with significant loss of

energy. Figure 1 shows an overview of the GeoScope system with optional

GPS system.

Figure 1 - GeoScope GPR system overview.

The step-frequency waveform gives optimum source signature with a uniform

frequency spectrum. The computer control allows the user to set the dwell

3d-radar as

GeoScope

TM

User’s Manual

time per frequency as well as the start and stop frequencies as shown in

Figure 2. The GeoScope sequentially transmits one complete waveform on

each transmitting antenna while receiving on the corresponding receiving

antenna. The transmission of one complete waveform on one transmitting

element is called as scan. The recorded frequency domain data contain one

complex value for each frequency in the waveform.

The radar system performs real-time time domain conversion through Fast

Fourier Transform allowing the user to view radargrams from the antenna

array. These data can be imported into either 3dR Examiner software, or

RoadDoctor

TM

from Roadscanners OY.

Figure 2 - Step-frequency waveform.

The radar is controlled from a laptop computer through an Ethernet cable.

The system can also be configured with GPS/Total Station interface (option)

to allow recording of position data through the serial port (RS-232).

1.2 Collect up to 41 survey lines simultaneously

The GeoScope

TM

GPR is designed to operate with an electronically scanned

antenna array with up to 41 antennas. The antennas are scanned

sequentially by the radar. The unique antenna system consists of air-coupled

bow-tie monopole pairs as shown in Figure 3. This gives a quasi-monostatic

antenna configuration with practically zero-offset distance. The air-coupled

antenna array can be operated at elevations up to 50cm off the ground

allowing high-speed surveys.

Figure 1 shows the spatial sampling grid for a typical 3D radar survey. The

Distance Measurement Instrument (DMI) outputs a trigger signal to the

system every time the array has moved the specified interval along the x-

axis. The horizontal sampling interval determines the ∆x in the sampling grid.

The array is aligned along the y-axis. The spacing between the antenna

elements in the array gives the ∆y in the sampling grid.

time

N frequencies

frequency

Frequency step

Dwell Time

Scan Time (for one single antenna element)

3.0 GHz

140 MHz

3d-radar as

GeoScope

TM

User’s Manual

Figure 3 - Ultra-wideband bow-tie antenna pair (cross section).

As opposed to traditional octave-band GPR antennas, the ultra-wideband

bow-tie monopoles have continuous frequency coverage from the 200 MHz

range up to 3 GHz as illustrated in Figure 4. In practice this allows the user to

collect data from 140 MHz to 3 GHz without changing antennas. By

comparison, a similar survey using impulse GPR would require use of

200MHz, 400 MHz, 800 MHz and 1600 MHz antennas.

Figure 4 - Wideband coverage of the 3d-Radar antenna array.

The antenna elements are arranged in a linear array as shown in Figure 5

where the transmitting and receiving antennas are displaced to each other.

During the survey, the radar combines the transmit/receive antennas

sequentially to obtain a number of profiles (or channels) as shown in Figure

5.

TX Radiation pattern RX Radiation pattern

Common footprint

3d-Radar frequency response:

100MHz 200MHz 400MHz 800MHz

1200MHz

3d-radar as

GeoScope

TM

User’s Manual

Figure 5 – Antenna layout DX2429.

The standard range of antenna arrays includes the following models:

Model DX0909

DX1213 DX1821 DX2125 DX2429 DX3341

Length (mm) 900 1200 1800 2100 2400 3300

Channels 9 13 21 25 29 41

Figure 6 – Available antenna models.

1.3 Multi-offset recording (optional)

The Multi-offset recording allows the user to set up antenna scanning

sequences with independent transmitter and receiver antenna locations.

In the standard (zero-offset) antenna scanning sequence, the GeoScope

transmits/receives sequentially on each antenna pair. Data is collected in the

1 152 3 4 5 6 7 8 9 10 11 12 13 14

Ch# 1 2 3 4 5 ... 25 26 27 28 29

Tx# 1 2 2 3 3 ... 13 14 14 15 15

Rx# 1 1 2 2 3 ... 13 13 14 14 15

1 152 3 4 5 6 7 8 9 10 11 12 13 14

3d-radar as

GeoScope

TM

User’s Manual

transverse direction by firing the antenna pairs in a linear sequence from

Antenna Pair #1 to the highest antenna pair.

With the Multi-offset feature, the system offers a higher degree of freedom to

build more advanced scan patterns. It is for example possible to transmit at

Antenna #1 and receive at Antenna # 8, (i.e. with an offset distance along

the cross-line direction). The automatic Common-Mid-Point (CMP) gather

collects traces centered at the antenna in the center of the array with

increasing offsets (normal move-out) as shown in Figure 7. This feature is

used to estimate the wave velocity using standard methods (semblance

analysis) used in seismic processing. Other scan sequences can be

programmed as well. Note that this mode of operation works in a sequential

manner, hence using all possible combinations of transmitter and receiver

antennas will slow down the data collection speed somewhat.

Figure 7 – Common-Mid-Point Gather.

1.4 Accessories/options

The GeoScope

TM

can be used in combination with digital video camera, GPS

and CamLink

TM

software from RoadScanners for simultaneous recording of

video, GPR data and GPS data.

The antenna array can be equipped with a 2-wheel lightweight trailer

assembly (Figure 8). The trailer connects to a standard ISO 50mm ball hitch

used on cars. For railway operation 3d-Radar can provide railway wheels with

adjustable track width. For high-speed surveys we recommend to mount the

array directly to the vehicle

Figure 8 - Typical GPR setup with a 2-wheel trailer.

3d-radar as

GeoScope

TM

User’s Manual

3d-radar as

GeoScope

TM

User’s Manual

2 Hardware Components

The GeoScope system consists of four main parts:

1. GeoScope unit

2. Antenna Array

3. Distance Measurement Instrument (DMI)

4. Control computer

2.1 GeoScope Unit

The GeoScope unit is the heart of the GPR system. It contains the RF

hardware including the digital signal generator and the ADC system which

stores the collected data. The GeoScope runs off 12V or 24V DC. Figure 9

shows the GeoScope front panel with connectors.

Figure 9 - GeoScope front panel.

The front panel contains the following elements:

Item

Name Description

1 AUX Aux Ethernet for service + I/O (Section 2.2)

2 GPS RS232 port for recording NMEA0183 messages

from GPS, + Additional RS232 port, + Trig I/O

(Section 2.3)

3 DMI DMI encoder input. (Section 2.4)

4 Antenna Antenna & Control cable

5 Ethernet Ethernet connector to Operator Computer

6 Power Switch Push to turn on. LED ring is red when system is

up and running. Push again to turn off. LED ring

goes dark when system is turned off.

7 Power Input Connector for 12/24V DC Input (Section 2.5)

To turn on the GeoScope, press the power button briefly and wait for the

startup procedure to finish. This takes a few seconds.

When the GeoScope is started with an Ethernet cable connected directly to

the control computer, it will have the following TCP/IP address: 192.168.8.2.

To stop the GeoScope, press the power button briefly and wait for the

shutdown procedure to finishWhen the shutdown procedure is finished the

power button LED goes dark and fans stop.

3d-radar as

GeoScope

TM

User’s Manual

Make sure that the side air inlet and outlet are not covered to

ensure proper cooling. The air inlet filter should be cleaned

regularly when operating in dusty environments. Insufficient

cooling might lead to system malfunction and potential loss of

data. Make sure that the GeoScope is not overheated by direct

sunlight.

2.2 Aux connector

The AUX connector (Lemo EGB.2B.312.CLL) has the following pin

configuration:

2.3 GPS input

The GPS input connector (Lemo EGA.2B.312.CLL) has the following pin

configuration:

The Geoscope reads serial data on NMEA0183 format from any GPS or GNSS

receiver. Recommended settings for the GPS NMEA output is:

Pin Signal

1 Reserved

2 Reserved

3 GND

4 Ethernet

5 Ethernet

6 Ethernet

7 Ethernet

8 Ethernet

9 Ethernet

10 Ethernet

11 Ethernet

12 N/C

Pin Signal

1 GPS RS-232 TX (output)

2 GPS RS-232 RX

3 GND

4 Reserved

5 Reserved

6 GND

7 Trig out (TTL)

8 Trig in (TTL)

9 GND

10 N/C

11 N/C

12 N/C

3d-radar as

GeoScope

TM

User’s Manual

2.4 Distance Measurement Instrument (DMI)

The DMI consists of an optical encoder that measures the distance of

movement and generates trigger pulses to the GeoScope. The DMI outputs

quadrature TTL pulses to allow detection of forward or reverse travel

direction. The DMI should be recalibrated at least each time you change its

mounting.

The DMI input connector (Lemo EGG.2B.312.CLL) has the following pin

configuration:

The relationship between DMI Tick count and the quadrature pulses is shown

in Figure 10. One tick is counted for each rising or falling edge of pulse trains

A and B.

Figure 10 - DMI pulses.

The supplied DMI encoder has 1000 pulses/rev.

Parameter Recommended settings

Position data $GPGGA (1Hz output rate)

Velocity data $GPVTG (1Hz output rate)

Baud rate 115,200

Data bits 8

Parity None

Stop bit 1

Pin Signal

1 +5V DC to DMI-1, max 50mA

2 DMI-1: Quadrature A (TTL)

3 DMI-1: Quadrature B (TTL)

4 Reserved

5 Reserved

6 GND

7 GND

8 DMI-2: Quadrature A (TTL)

9 DMI-2: Quadrature B (TTL)

10 Reserved

11 Reserved

12 +5V DC to DMI-2, max 50mA

1

B

Tick

A

2

3

4

5

6

7

8

9

10

11

12

3d-radar as

GeoScope

TM

User’s Manual

2.5 Power Supply

The GeoScope runs off 12/24V DC (10.5 – 36V). At maximum load, the

GeoScope power consumption is about 80W (7A @ 12V DC). During startup

the inrush current might be as high as 10A.

Never unplug the power cable from the GeoScope when the

system is running. This may cause loss of data and insufficient

system shutdown.

The Power connector (Lemo EGJ.3B.303.CLA) has the following pin

configuration:

The GeoScope may be connected to the 12V DC system of a car, but special

care should be noted to voltage stability. Always use a separate 12V

accumulator or a DC/DC converter with galvanic isolation between the

GeoScope and the car 12V outlet to stabilize the voltage. Avoid starting the

car engine when the GeoScope is connected since the starter motor might

cause severe voltage surge.

When running the GeoScope on battery power, it is very important to use a

high quality battery. Old batteries may often appear to be fully charged when

measured without load, but when connected to load, like the GeoScope,

voltage can drop quickly.

Under normal operation, a fully charged 50Ah lead-acid accumulator with

good health, will last for approximately 5 hours. A gel-type deep-cycle

accumulator is recommended both for safety, i.e. reduced risk for acid

leakage, and for endurance. Gel accumulators are designed for supplying

power over a long period of time with repeated deep discharging. Ordinary

car accumulators on the other hand, are constructed for supplying high

currents over a short period of time during starting. They are not constructed

for being completely discharged repeatedly.

2.6 Control Computer

The control computer is usually a laptop with the GeoScope user software

installed. The control computer is used to configure the radar waveform,

calibrate the DMI, control data acquisition and manage the collected data

stored on the GeoScope. The system performance will be affected by the

speed of the client laptop. A workstation grade CPU, gigabit Ethernet and a

fast SSD is recommended.

As of 2013-05-04, the client software runs on Java 1.6 while 3drExaminer

requires Windows 7.

Pin Signal

1 Pos

2 Neg

3 Chassis GND

3d-radar as

GeoScope

TM

User’s Manual

If the computer runs Windows XP with Service Pack 2 or newer, the Windows

firewall should be disabled when connecting to the GeoScope; otherwise you

will have problems connecting to the GeoScope. If you use other firewall

software, and experience connection problems, please turn off this as well.

An alternative to disabling the firewall completely is to enable the outgoing

ports 19005 and 19003.

3d-radar as

GeoScope

TM

User’s Manual

3 Antenna Array

3d-Radar AS provides different antenna array solutions for the GeoScope.

Current arrays range from widths of 90 – 330 cm with number of channels

ranging from 9 to 41Figure 11 shows the DX2429 antenna array which covers

a width of 240 cm using 29 channels.

Figure 11 - Antenna Array Model DX2429.

3.1 Antenna Trailer

The antenna trailer is a lightweight assembly which allows the array to be

towed behind a vehicle. Figure 12 shows a drawing (top view) of the trailer

assembly.

3d-radar as

GeoScope

TM

User’s Manual

Figure 12 - Antenna trailer.

The antenna trailer is assembled by mounting the wheel brackets to the top

of the antenna array as shown in Figure 13. Mount the wheel containing the

DMI close to Antenna #1. Use the rigging screw to adjust the elevation.

Figure 13 - Wheel bracket with DMI.

3d-radar as

GeoScope

TM

User’s Manual

Figure 14 – Installation of tow bars.

Mount the tow bar to the top brackets on the antenna array as shown in

Figure 14.

Connect the RF cable to the main antenna connector of the array. Connect

the DMI cable to the DMI connector on the wheel bracket containing the DMI.

Note that the 2.4 and the 3.3 meter arrays (DX2429 and

DX3341) are wider than the vehicle. Use flashlights and visible

markers to the edge of the antenna array when operating at

roads with traffic. Always wear visible reflex safety west when

working at roads and railways.

Make sure that the elevation of antenna array is sufficient to

avoid that the array hits the surface during data acquisition.

Recommended elevation is 10 – 50 cm above the ground

surface.

3d-radar as

GeoScope

TM

User’s Manual

4 Operation

By following the steps below, you are ready to collect data with the

Geoscope:

1. Connect the Antenna array, the DMI encoder and DC power to the

GeoScope. Optionally, connect the External GPS.

2. Power up the GeoScope by pushing the button at the top right of the

front panel.

3. Connect the client computer to the Ethernet interface using a standard

CAT5E twisted pair cable. Please make sure that:

a. The Local Area Network adapter on the client computer is

configured with a fixed IP address in the 192.168.8.x range,

where x is different from 2 (192.168.8.5 for example) and with

a Subnet Max value of 255.255.255.0

b. Power options of the client PC are set to “High performance”

(Win7) or “Always on” (XP).

c. There is available hard-disk space for your .3dra files which are

stored on the client computer.

4. Open a web browser window and enter http://192.168.8.2 in the URL

field.

5. Push the “Launch” button, and the client GUI will appear:

3d-radar as

GeoScope

TM

User’s Manual

6. Select survey settings by clicking the cog-wheel icon and selecting

“Survey Settings”.

a. Adjust the sliders. Note that the max speed changes according

to your slider settings. Depending on the “time window” setting,

you may or may not get the full depth in the quick view. The

full range is always recorded to file.

b. Select your “File Location” for storage of 3dra files.

c. Press “OK” to close the dialog.

7. Push “Start” button in the main window. Notice file name and location

in window title bar. If you are driving too fast, some scans will be lost

and vertical red stripes will be shown in the data view. When the

acquisition is done, press “Stop”. The 3dra file is now available in your

specified location.

8. Make sure the DMI Calibration values, the General DMI Settings and

the External GPS Settings are updated in the “System Settings” tab

before performing a survey task.

9. 3dR Examiner software version 2.61 or newer is required for post-

processing the .3dra files.

3d-radar as

GeoScope

TM

User’s Manual

5 Maintenance

5.1 Cleaning air filter

Remove the air filter inlet cover at the rear right side. Open the cover and

use a vacuum cleaner or compressed air to blow dust from the filter. Mount

the filter in the same manner as opened.

5.2 Cleaning of connectors

The RF and control cables may be cleaned either using compressed air from a

can or Isopropanol based electronic cleaning spray. Never use water to clean

connectors. During field work, avoid putting connectors on the ground or in

water in order to minimize the probability of getting sand or dust inside the

connectors. Inspect connectors for corrosion at regular intervals.

5.3 Cleaning the antenna array

The antenna array top cover can be cleaned with a wet cloth with ordinary

cleaner. Never use high-pressure jet water washer on the antenna. The

bottom side can be cleaned firmly with a humid rag. Do not store the

antenna array inside the container if it is wet or humid.

Curtiss Wright Controls GSMK4 Geoscope Mk4 User Manual 2013 GeoScope Mk4

Curtiss-Wright Controls Inc (3d-Radar) Geoscope Mk4 2013 GeoScope Mk4

User Manual

Navigation menu

Namespaces

Views

Navigation