Zonge GDP-32 User manual

November 2002
GDP-32II Manual
Table of Contents
LABELS
1. Introduction Introduction
1.1 Warranty ................................................................... 2
1.2 Product Information .................................................. 3
2. Description Of The GDP-32II Receiver Description
2.1 Overview................................................................... 2
2.2 Specifications............................................................ 3
2.3 GDP-32II Case........................................................... 8
3. System Start Up Start Up
3.1 Initial Receiver Check............................................... 2
3.2 Powering Up The GDP-32II ......................................4
3.3 Shutting Down The GDP-32II ................................... 5
3.4 Charging Batteries.....................................................6
4. Quick Start Quick Start
4.1 Introduction............................................................... 2
4.2 Receiver Start-Up...................................................... 3
4.3 Enter Survey Parameters........................................... 5
4.4 Calibration.................................................................7
4.5 System Check.......................................................... 11
4.6 Synchronization ......................................................13
4.7 Acquire Field Data.................................................. 15
4.8 Check Data In The Data Cache............................... 15
4.9 Data Transfer To A Computer ................................ 16
5. Accessing Programs Access
5.1 The Main Program Menu.......................................... 2
5.2 Field Survey Program Screens .................................. 5
5.3 Scaling ....................................................................13
6. Receiver Setup Setup
6.1 Calibration.................................................................2
6.2 Synchronizing Timing Circuits............................... 14
6.3 Measuring Contact Resistance ................................ 27
6.4 Setting The Powerline Notch Filter......................... 28
6.5 Gains ....................................................................... 29
6.6 Bits Of Resolution................................................... 38
7. Handling Data Data
7.1 Monitoring Analog Signals....................................... 2
7.2 Viewing Data ............................................................ 3
7.3 Accessing Caches...................................................... 7
7.4 Initializing Caches...................................................10
7.5 Configuring Ports....................................................11
7.6 Outputting Data....................................................... 13
7.7 Input Antenna Calibration Data .............................. 16
7.8 Up-Loading Program Files Via The LAN............... 18
7.9 Connecting the GDP-32II to a Laptop via Network.19
LABELS
8. RPIP RPIP
8.1 Introduction .............................................................. 2
8.2 Program Operation ................................................... 3
8.3 Data Collection......................................................... 7
8.4 Field Configurations ............................................... 14
9. TDIP TDIP
9.1 Introduction .............................................................. 2
9.2 Program Operation ................................................... 3
9.3 Data Collection......................................................... 8
9.4 Sample Data Blocks................................................ 15
9.5 Algorithms.............................................................. 17
9.6 Time Domain Window Timing Information .......... 18
9.7 Field Configurations ............................................... 19
10. CR / HACSAMT CR
10.1 Introduction .............................................................. 2
10.2 CR Program Operation ............................................. 3
10.3 Gathering Data........................................................ 10
10.4 A Note On Phase .................................................... 16
10.5 A Note On Scaling.................................................. 16
10.6 3-Point Decoupling................................................. 17
10.7 Sample Data Blocks................................................ 18
10.8 Notes On Field Configurations............................... 20
10.9 Sample Menus For 'LABROX' Option ................... 21
10.10 Sample Menus For 'HACSAMT' Option................ 24
10.11 Field Configurations............................................... 26
11. CSAMT CSAMT
11.1 Introduction .............................................................. 2
11.2 Fixed Function Keys................................................. 3
11.3 CSAMT Program Operation..................................... 4
11.4 Gathering Data........................................................ 11
11.5 A Note On Variable A-Spacing.............................. 16
11.6 A Note On Phase .................................................... 16
11.7 A Note On Scaling.................................................. 16
11.8 Restrictions............................................................. 17
11.9 Sample Data Blocks................................................ 21
11.10 Notes On Field Configurations............................... 22
11.11 Magnetic Coil Connections .................................... 22
11.12 Field Configurations............................................... 23
11.13 Magnetic Sensors Field-Check ............................... 25

GDP-32II INSTRUCTION MANUAL
November 2002 Table of Contents, Page 2
LABELS
12. TEM TEM
12.1 Introduction............................................................... 2
12.2 Fixed Function Keys ................................................. 3
12.3 TEM Program Operation .......................................... 4
12.4 Powerline Noise Rejection...................................... 12
12.5 Gathering Data ........................................................ 13
12.6 A Note On Scaling .................................................. 17
12.7 Sample Rates And Antialias Filter Delays.............. 18
12.8 TEM Window Centers For Zero Delay................... 19
12.9 Window Centers And Widths ................................. 20
12.10 Sample Data Blocks ................................................ 21
12.11 Field Setups and Magnetic Antennas...................... 22
12.12 Estimating Ramp-Off Time..................................... 22
12.13 TEM Receiver / Transmitter Arrays........................ 23
12.14 First Window Time Determination ......................... 24
12.15 Field Configurations ............................................... 25
12.16 Equal-Interval Mode TEM...................................... 30
12.17 Method To Field-Check Magnetic Sensors............. 32
12.18 The NanoTEM System............................................ 33
12.19 NanoTEM Hookup Directions ................................ 34
12.20 NT-32 Transmitter System...................................... 35
12.21 NanoTEM Turnoff Times ....................................... 38
12.22 NanoTEM Field Data Cache................................... 38
12.23 NanoTEM Window Centers.................................... 41
12.24 NanoTEM Sample Data .......................................... 44
12.25 The NanoTEM Calibrate Box ................................. 45
12.26 NanoTEM Field Setup ............................................ 49
12.27 Equal-Interval Mode, NanoTEM ............................ 51
13. MT / AMT AMT
13.1 Introduction............................................................... 2
13.2 Fixed Function Keys ................................................. 3
13.3 MT/AMT Program Operation................................... 4
13.4 Gathering Data ........................................................ 13
13.5 A Note On Variable A-Spacing .............................. 17
13.6 A Note On Phase..................................................... 17
13.7 A Note On Scaling .................................................. 17
13.8 Restrictions ............................................................. 18
13.9 Notes On Field Configurations ............................... 23
13.10 Cascade Decimation Overview............................... 24
13.11 Data Dump Utility................................................... 26
13.12 Time Series File Format.......................................... 26
13.13 Time Schedule ........................................................28
13.14 Field Configurations ............................................... 33
13.15 Method To Field-Check Magnetic Sensors............. 37
14. Plotting Routines Plot
14.1 Introduction............................................................... 2
14.2 Summary Of Plots For Different Data Types............ 4
14.3 Examples of Operation.............................................. 5
14.4 Error Messages..........................................................6
LABELS
15. Mathematical Algorithms Mathematics
15.1 Standard Error Of The Mean (SEM) ........................ 2
15.2 3-Point Decoupling................................................... 3
15.3 A Note On Resistivity Calculations.......................... 4
15.4 Resistivity Calculations ............................................ 4
15.5 Useful CSAMT Equations...................................... 11
15.6 Useful TEM Equations ........................................... 12
16. GDP-32II Design Design
16.1 Basic Design Characteristics .................................... 2
16.2 Receiver Layout........................................................ 4
16.3 Card-PC MPU Board................................................ 8
16.4 Bd287 Front Panel Board ......................................... 8
16.5 Bd183 Analog Board.............................................. 10
16.6 The Calibration And Timing Board........................ 18
16.7 The Battery Compartment ...................................... 23
16.8 The Crystal Oscillator............................................. 23
17. Maintenance And Trouble-Shooting Maintenance
17.1 Board Functions And Diagnostics ............................ 2
17.2 Handling Boards and EPROMs .............................. 14
17.3 Digital Board Problems .......................................... 16
17.4 Analog Board Problems.......................................... 16
17.5 Battery And Power Problems ................................. 20
17.6 Synchronization Problems...................................... 24
17.7 Cold Weather Operation......................................... 28
17.8 Pinouts For Connectors .......................................... 29
17.9 Error Messages ....................................................... 36
18. GDP-32II User's Notes User's Notes
18.1 Use Of The Attenuator ............................................. 2
18.2 Recalibrate When Replacing Analog Cards ............. 2
18.3 Connecting Peripherals To The GDP-32II ................ 3
18.4 Always Measure Contact Resistance – CRES .......... 3
18.5 XMT-32 Transmitter Controller Specifications........ 4
18.6 Transmitter Control Interface ................................... 5
18.7 Resistance of Standard Gauge Wire ......................... 6
18.8 Setup Instructions for Loadbank LB2500................. 7
18.9 Antenna Designations............................................... 8
18.10 Serial Port Data Transfer Using HyperTerminal ...... 9
18.11 Local Area Network (LAN) Connection ................ 10
18.12 Black Screen When Resetting The GDP-32II ......... 10
18.13 Observe Proper Turn-Off Procedure....................... 10
19. Fast Transient Electromagnetics NanoTEM
19.1 The NanoTEM System ............................................. 2
19.2 NanoTEM Hookup Directions.................................. 3
19.3 NT-32 Transmitter System ....................................... 4
19.4 NanoTEM Turnoff Times......................................... 7
19.5 NanoTEM Field Data Cache .................................... 7
19.6 NanoTEM Window Centers ................................... 10
19.7 NanoTEM Sample Data.......................................... 13
19.8 The NanoTEM Calibrate Box................................. 14
19.9 NanoTEM Field Setup............................................ 18
19.10 Equal-Interval Mode, NanoTEM............................ 20
19.11 Configuring Ports ................................................... 22
19.12 Outputting Data ...................................................... 24

May 2002
1. INTRODUCTION
1.1 WARRANTY ............................................................................... 2
1.2 PRODUCT INFORMATION .................................................... 3
HARDWARE ..................................................................................................... 3
SOFTWARE ...................................................................................................... 5

GDP-32II INSTRUCTION MANUAL
May 2002 Section 1, Page 2
1.1 WARRANTY
Zonge Engineering (Zonge) warrants the electronic equipment it manufactures for a period of one
year from shipping date. Equipment that indicates a defect in workmanship or material will be
repaired or replaced at Zonge's option and returned to the customer. Returned equipment must
be properly packaged and sent freight prepaid to the Zonge factory. All inbound and outbound
freight and customs charges are the responsibility of the customer. Items not covered by this
warranty are:
1. Equipment that has been modified, altered or repaired by someone who is not authorized
by Zonge.
2. Equipment that shows misuse, abuse, negligence or improper connection, alignment or
operation.
3. Equipment that has been connected to devices that have not been authorized by Zonge
(such as non-Zonge transmitter controllers).
4. Motor generators, alternators, trailers, and backpack frames. Each of these items carries a
90-day warranty.
5. Maintenance items such as belts, filters, batteries, fuses, tires, output GTO, IGBT and
SCR diodes. These items are considered consumable and are not warranted by Zonge.
This warranty is in lieu of all other warranties, expressed or implied on our part. Zonge may
make statements as to the suitability or fitness of the product covered by this warranty for
particular purposes. These statements do not apply to any other purpose. No other warranties
apply; whether written or oral, to products manufactured by Zonge.
Any warranty questions or requests for repairs and replacement parts should be handled directly
with a Zonge representative. Please include the instrument serial numbers with all
correspondence.
Zonge reserves the right to change specifications and prices without notification.

INTRODUCTION TO THE GDP-32II
Section 1, Page 3 May 2002
1.2 PRODUCT INFORMATION
Client:
Address:
Contact:
Phone: Fax:
RECEIVER MODEL:
SERIAL NUMBER:
DELIVERY DATE:
HARDWARE
Analog Boards (BD183)
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:

GDP-32II INSTRUCTION MANUAL
May 2002 Section 1, Page 4
Timing and Calibrate Board (BD244 or BD288)
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Front Panel Board (BD287)
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
CPU Board (it/SLC )
Serial Number: Date sent: Notes:
Serial Number: Date sent: Notes:
Firmware Version Number:
Receiver Configuration:

INTRODUCTION TO THE GDP-32II
Section 1, Page 5 May 2002
SOFTWARE
EPROMs
Version
Sent
RPIP
Version
Sent
CR
Version
Sent
TDIP
Version
Sent
CSAMT
Version
Sent
TEM
Version
Sent
AMT/MT
Version
Sent
OTHER
Version
Sent

May 2002
2. DESCRIPTION OF THE GDP-32II RECEIVER
2.1 OVERVIEW ................................................................................ 2
2.2 SPECIFICATIONS..................................................................... 3
ELECTRICAL SPECIFICATIONS .......................................................................... 4
MECHANICAL SPECIFICATIONS ........................................................................ 5
2.3 GDP-32II CASE ........................................................................... 8
CASE LID - METER AND I/O PANELS ............................................................. 10
FRONT PANEL................................................................................................ 11
CONTROL I/O PANEL (LEFT SIDE) ................................................................. 15
ANALOG I/0 PANEL ....................................................................................... 18

GDP-32II INSTRUCTION MANUAL
May 2002 Section 2, Page 2
2.1 OVERVIEW
The GDP-32II Geophysical Data Processor is a universal, multi-channel receiver designed to
acquire virtually any type of electromagnetic or electrical data within the DC to 8 kHz
bandwidth. The GDP-32II design is the result of over 25 years experience with its predecessors,
the GDP-12, GDP-16 and GDP-32. Its design emphasizes software flexibility, optimum data
quality, practicality and ruggedness for harsh field conditions.
The GDP-32II is supported by a complete set of geophysical services at Zonge Engineering.
These services include:
Equipment sales and rentals
Geophysical consulting and training
Turn-key data processing
Custom Modeling and Processing Software
Contract field surveys

DESCRIPTION OF THE GDP-32II RECEIVER
Section 2, Page 3 May 2002
2.2 SPECIFICATIONS
The GDP-32II is designed for high quality data acquisition in harsh environments. Measurable
parameters include:
Resistivity
Induced Polarization (frequency or time domain)
Complex Resistivity (CR)
Controlled Source Audio Frequency Magnetotellurics (CSAMT)
Harmonic CSAMT (HACSAMT)
Frequency Domain EM (FEM)
Transient EM (TEM)
NanoTEM (a very early time TEM program)
Continuous NanoTEM
Natural Source MT
Natural Source AMT
Programs are stored on an internal flash disk and are software-selectable. Users can also develop
custom survey applications using the C programming language. However, this is a complicated
undertaking and should only be attempted with assistance from Zonge Engineering.
The GDP-32II operates in both the Frequency Domain and Time Domain. Twenty six (26)
frequencies can be selected in binary intervals between 0.000121 Hz and 8 kHz.
The GDP-32II is designed for multi-channel data acquisition. The large case GDP-32II can
accommodate up to sixteen channels for simultaneous measurements from DC to 8 kHz.
Multiple receivers can also be used together for n-channel acquisition.
The small case GDP-32IIT accepts a maximum of 6 analog channels. These channels can be a
mixture of high-speed NanoTEM acquisition boards (BD194) and the standard analog boards
(BD183). In either case, a maximum of 3 high-speed NanoTEM channels can be installed.