Zonge GDP-32 User manual

GDP-3224 September 2015
4. QUICK START
4.1 INTRODUCTION.................................................................... 2
MAIN DISPLAY ...........................................................................................2
CURSOR POSITION....................................................................................3
4.2 RECEIVER START-UP.......................................................... 4
4.3 CALIBRATION ....................................................................... 5
4.4 SYSTEM CHECK.................................................................... 7
4.5 TIMING CARD SYNCHRONIZATION............................... 9
4.6 GPS SYNCHRONIZATION................................................... 9
4.7 MANUAL SYNCHRONIZATION....................................... 10
4.8 SET TIME............................................................................... 11
4.9 SYNC CHK............................................................................. 13
4.10 FIELD SURVEY PROGRAM .............................................. 14
4.11 JOB_INFO SCREEN............................................................. 15
4.12 LINE SETUP........................................................................... 16
4.13 ACQUISITION CONFIGURATION................................... 17
4.14 CHANNEL TABLE................................................................ 18
4.15 CHECK FIELD CONNECTIONS........................................ 19
4.16 DATA ACQUISITION .......................................................... 20
4.17 CHECK DATA IN THE DATA CACHE............................. 21
4.18 DATA TRANSFER TO ACOMPUTER.............................. 22
DIRECT CONNECTION TO PC OR LAPTOP......................................................22
NETWORK LAN CONNECTION.......................................................................23
MAP NETWORK DRIVE..................................................................................24
FILE TRANSFER............................................................................................24

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 2 GDP-3224
4.1 INTRODUCTION
This section covers the basic startup procedure. Use this summary to test the basic functions of
the receiver without having to be intimately familiar with its operation. More complete
operating instructions are available for each topic in later sections of this manual.
This overall procedure is required in order to acquire good data with the GDP-3224.
1. Receiver Startup
2. Calibration.
3. System Check
4. Timing Card Synchronization
5. Field Survey Program
Enter Survey Parameters
Check Field connections
Acquire Data
Check Data
6. Transfer Data
Simple menus make operating the GDP-3224 straightforward. The easiest way to become
familiar with the receiver operation is to try the various software options.
MAIN DISPLAY
The screen provides 80 characters on 30 lines. The entire screen is visible on the Color display.
However, 60 characters on 20 lines are visible on the Monochrome display. Use the key
and one of the quadrant keys to shift the display to another area:
+
For example, shift the display down by using , and back up with .
Only the first diagram below shows the entire screen. MOST OF THE OTHER SCREENS IN
THIS MANUAL DISPLAY ONLY 60 characters BY 20 lines.
Home
SELECT UP
Pg Up
PREV FIELD
SELECT DN
End
Pg Dn
NEXT FIELD
SELECT DN
End
Home
SELECT UP

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GDP-3224 Section 4, Page 3 September 2015
CURSOR POSITION
To position the cursor on the LCD display use the Cursor Control Keys:
or and .
To cycle through available options, labels and numbers use the Rotary Entry Keys: and
.
Pg Dn
NEXT FIELD
Pg Up
PREV FIELD
Home
SELECT UP
SELECT DN
End

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 4 GDP-3224
4.2 RECEIVER START-UP
Power Up the receiver by cycling the Power ON/OFF button on the Control I/O panel.
This applies power to the oven-stabilized Crystal Oscillator and illuminates the Crystal Oscillator
Power Light on the Front Panel.
Note: For some surveys, the Crystal Oscillator should be powered on for a minimum of 20
minutes before any data acquisition or calibration procedure. For manual synchronization with
an XMT transmitter controller, both the receiver and XMT should be powered on for at least an
hour before syncing and acquiring data.
Press the button located on the Front Panel. The unit beeps and the LCD displays the
operating system initializing parameters, and finally displays the Zonge Logo screen, which is
the starting screen for all operations.
<0402a_24SPLASH>
Adjust screen contrast and backlight, pressing and if necessary. Pressing
will provide a longer backlight period, but use more power.
All Field Survey programs and system Utilities are directly accessible through the function keys.
Follow the function key labels on the bottom two lines of the display.
ON/OFF
CONTRAST

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GDP-3224 Section 4, Page 5 September 2015
4.3 CALIBRATION
Calibration is performed within each of the field survey programs. There are two board
calibration files required, one for the AMT program, the second for all other programs. System
Check and Timing Synchronization use the same calibration data generated by the CSAMT, CR
and TDIP programs. Performing initial calibration with the CR program has the advantage of
being able to view the calibration factors for the fundamental frequency as well as the 3rd, 5th and
7th harmonics. This allows the operator to inspect them for consistency across all the analog
cards.
1. From the Zonge Logo screen press to start the CR program.
2. From the CR Channel Table, make sure all the channels to be calibrated are turned on.
3. Set the frequency to the lowest frequency that will be used during the survey.
4. Select the notch filter to be used for the survey.
Note: It is good practice to obtain at least one calibration set with the notch filters OUT, as it
will be the default calibration set when no other notch settings match. The quick system check
method uses NOTCH OUT in order to minimize variability due to the filters themselves.
5. Press to enter the Calibration submenu.
6. Leave the METHOD set to AUTOCAL, and MODE to INTERNAL. Make sure the gain
settings in the Channel Table are set to 00-0.
7. Press to start the automatic calibration procedure.
8. When completed, press to exit the calibration submenu, and again to return to the
Zonge Logo.
Note: Pressing will end the automatic calibration procedure at any time.
9. When the calibration is complete, a system check is recommended.
Enter
Escape

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 6 GDP-3224
<0403a_24CR_Cal>
Calibration is not required each time the GDP-3224 is started. Calibrate data are stored on the
GDP flash drive. Frequent calibrates, especially as the environment changes, will provide the
best results. Refer to Section 6, Setup, and the sections for specific programs, for more
information about calibration, and when to use METHOD 1SHOTCAL, MODE INTERNAL,
and when to set gain values.
Note: Calibration should only be performed without a charger. Nothing should be connected to
the input channels, or the CAL output terminals, unless MODE EXTERNAL has been selected.

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GDP-3224 Section 4, Page 7 September 2015
4.4 SYSTEM CHECK
The SYSCHK program checks the performance of the analog cards, as well as the overall
operation of the GDP-3224. It confirms analog card consistency while acquiring data, as well as
any performance drift since the last calibration. This check should be performed before and after
any field job in order to ensure that the data collected is of the highest quality. To start the
system check program press from the Zonge Logo screen.
The system check can be performed with various parameter settings in order to run either a quick
check, or a more stringent check of the system. For a quick check, the following parameters can
be set. These settings should provide a quick Go-NoGo run without the need to closely inspect
the overall data. Any suspected error will halt the automatic progression through the
frequencies, of the AUTO METHOD, and signal the operator with an audible warning. The
system should then be investigated more closely to confirm and identify and real problem. See
the System Check section of this manual for more information.
FREQ Set to the lowest frequency to be used for the job.
CYCLES At least 2 cycles for the lowest frequency.
STACKS At least 2, in order to quickly check analog card repeatability.
AGAIN Set to MAN for speed.
NOTCH Set to OUT. Notch filters can cause wide variability around harmonic
frequencies of the filter. Setting filters OUT, will minimized the chance of the
automatic sequencing stopping for false errors, allowing for lower detection
limits to be set.
VOLTS Set to 0.01 v. A low voltage such as this can help magnify any errors in the
analog cards.
GROUP This will be set automatically for this purpose. Stacks of data will be
averaged by group for comparison with the Data Viewer. Different Groups
collected at different times can then be compared to find any change in the
system.
METHOD Set to AUTO.
dθ LIM Set to 0.1. Without NOTCH filters, this should provide a good check. With
NOTCH filters a setting of 1 is appropriate.
dCal% L Set to 1. Without NOTCH filters
After the settings are made, press to proceed with the test. When finished, press
to return to the Zonge Logo screen.
Enter

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 8 GDP-3224
<0404a_24SYSCHK_Quick>
For more detailed instructions see Section 8, System Check.

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GDP-3224 Section 4, Page 9 September 2015
4.5 TIMING CARD SYNCHRONIZATION
Synchronization of the timing card should be performed when synchronization with GPS, or an
XMT, is required. Every time the GDP-3224 is powered up, the SYNC program should be run to
establish GPS or XMT synchronization. If only the operating system was shut down by pressing
or the operating system restarted by pressing the key, the SYNC program should
be run to re-establish GPS syncing. For manual syncing with an XMT, SYNC does not need to
be re-run as long as Crystal Power was not shut down and battery power did not fail.
To start the SYNC program, press from the Zonge Logo screen. Prior to synchronization
the receiver should be connected to either a GPS antenna or to an XMT transmitter. See Section
6, Receiver Setup for more information about making the connections to a transmitter
controller.
<0405a_24SYNC_Sats>
4.6 GPS SYNCHRONIZATION
For GPS synchronization, start the program and wait until the signals from at least 4 satellites are
received (display line 4, Sats:). The Crystal Percent Stable should be at least 50%. Press
to move to the Use GPS Syncing field and then press to select Yes. After a few
moments the Timing card will be synchronized.
Note: Some XMT-G models have GPS antennas built into the lid of the case, as well as an
external GPS antenna connector. Use of an external antenna is preferable. WARNING: Only
one antenna should be connected at any time. Connecting both antennas will cause a phase shift
of the transmitter control signal.
ON/OFF
Pg Dn
NEXT FIELD
Home
SELECT UP

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 10 GDP-3224
4.7 MANUAL SYNCHRONIZATION
For Manual synchronization to an XMT, the Use GPS Syncing setting should be left at No. To
synchronize the crystal, press , to select the XTAL submenu, and follow the on-screen
instructions to adjust the crystal frequency. Adjust the DAC Value until the phase meter needle
on the XMT stops. Then press RESET on the XMT.
<0407a_24SYNC_ManlSync>
Note: For manual synchronization with an XMT transmitter controller, both the receiver and
XMT should be powered on for at least an hour before running SYNC.
If a fast beep sounds while pressing any of the crystal adjust keys, no more adjustment is
available on that particular key. Move to the next higher (coarser) adjustment key.
If unable to make the phase meter needle stop moving completely, see Section 6.2 for the
manual adjustment procedure.
Once the crystals have been adjusted to give the same frequency (the phase meter needle
has stopped), press RESET on the XMT.
Note: The XMT Sync screen instructions assume that there are standard analog cards in
channels 1 and 2. A NanoTEM card in either channel can cause the receiver to lock up if the
synchronization routine is tried.

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GDP-3224 Section 4, Page 11 September 2015
4.8 SET TIME
After the Timing Card has been synchronized to either GPS or an XMT, the receiver's time clock
should be set. Press to bring up the time submenu. Press '1' to use GPS time, or press
'2' to enter the time manually.
SET GPS TIME
To set GPS time, the GPS Local Time Differential, and the GPS Leap Second Offset values must
be set. Press and to move to the different fields. Enter values for the fields
directly, or use the and keys to make adjustments. After making adjustments,
move the cursor back to the MODE field, and make sure the GPS Local Time appears correct. If
not, adjust the Local Time Differential setting. When correct, press to update the system
clock.
<0408a_24SYNC_TimeGPS>
Note: Since June 2012, the Leap Second Offset has been 16 seconds. Refer to internet
documentation, or contact Zonge for the latest setting.
SET TIME MANUALLY
To set the time manually, use and to move to the appropriate Date or Time field
that may need adjustment. When corrected to the local time, press .
Pg Up
PREV FIELD
Pg Dn
NEXT FIELD
Home
SELECT UP
SELECT DN
End
Enter
Pg Up
PREV FIELD
Pg Dn
NEXT FIELD
Enter

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 12 GDP-3224
<0408b_24SYNC_TimeManl >

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GDP-3224 Section 4, Page 13 September 2015
4.9 SYNC CHK
After Synchronizing and setting the Time, the SYNC CHK procedure should be used to confirm
synchronization. Press to start the SYNC CHK procedure. The basic steps are:
Set the FREQ of the receiver and XMT to match.
Set channel 1 comp field to IREF as the internal reference.
Set channel 2 comp field to XMT and connect the channel inputs to the XMT Sync Out ports.
Turn Off all other channels not connected to a synchronized signal.
Press .
<0409a_24SNCCHK_Main>
The program will take readings of the various signals, and compare the phase of the XMT, or
other device, to the IREF (or EREF) channel. The phase should be close to 0.0. If any input
phase differs more than 0.1 mrad to the reference, the test will fail.
When finished, press to return to the Zonge Logo screen.
Enter

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 14 GDP-3224
4.10 FIELD SURVEY PROGRAM
From the Zonge Logo screen, select the Field Survey Program (e.g. Press for the
CSAMT program). This brings up the Main Menu Screen for that program. For a complete
description of program screens and parameters see Section 5 –Accessing Programs, and the
sections for individual programs. Submenus and specific functions are directly accessible
through the Function Keys. Data acquisition is always initiated by pressing while on the
Main Menu screen.
<0410a_24CSAM_NewMsgFormat>
The Field Survey programs do not have a forced sequence of parameter input screens. Most
survey parameters can be entered directly on the Main Menu screen. Various submenu screens
are accessed directly from the Main menu for entering more specific job or special setup
parameters. Functions such as Calibration and CRES, can be directly accessed by pressing
function keys. Function keys through are context sensitive and have various
functionality depending on the current submenu, or cursor field. The LCD screen line displayed
just above these Soft Function Keys, displays a label identifying the current functionality of
these keys. Function keys through have fixed meanings, though not all programs
support all of the functions.
A general sequence for setting up an acquisition would be as follows.
Start by filling in the parameters in the JOB_INFO submenu.
Back on the Main Menu, set A-Space and other Line Setup parameters.
Set Acquisition Configuration parameters.
Enter

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GDP-3224 Section 4, Page 15 September 2015
Configure the channels in the Channel Table.
Check field connections.
Data Acquisition.
Review the data, and finally
Archive the data cache file.
4.11 JOB_INFO SCREEN
From the initial Main Menu screen, press to enter the job information submenu where
Operator, Transmitter, and other job based data are entered. Programs such as TEM also use this
screen to enter loop antenna configurations, delay times, and other data which are critical to
operation or calculating final results. The Operator and Job data is common to all field programs
and will be maintained when switching between programs.
<0411a_24CSAMT_JobInfo>
For survey specific settings refer to the individual Survey Program sections.

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 16 GDP-3224
4.12 LINE SETUP
The lower third of most Main Menu screens contains Line Setup fields. The Line Setup area of
the screen should be filled in before setting parameters in the Channel Table. The information in
this part of the screen can affect how changes to other fields are automatically updated,
especially in the Channel Table. Many of these input fields are not frequently changed after a
survey has started, therefore they are located in the lower third of the screen. Though there is no
required sequence for editing the input fields, it is suggested that these fields be entered first.
The following list of input fields is in the suggested order of data entry. Not all programs
contain all the fields listed below, some programs contain additional fields, but all the fields in
this portion of the screen should be inspected and modified if necessary.
TIME SERIES Set optional saving of all raw data collected during the acquisition.
ARRAY Survey array type.
A-SPACE Transmitter electrode spacing.
S-SPACE Station spacing.
LINE, Direction, Azimuth, SPREAD These fields are informative.
TX LOC Transmitter location. Some programs require simple along line location
and LINE number, others require X (along line), Y (across line) and Z
(depth below surface) parameters for both A & B transmitter electrodes.
RX LOC Receiver location. Some programs require simple along line location and
LINE number, others require X (along line), Y (across line) and Z (depth
below surface) parameters
Note: Modifying many of these fields can cause automatic changes to a number of fields in the
Channel table, therefore they should be entered first.

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GDP-3224 Section 4, Page 17 September 2015
4.13 ACQUISITION CONFIGURATION
Along the left border of the screen are parameters that configure data acquisition. Not all
programs contain all the fields listed below, some programs contain additional fields, but all the
fields in this portion of the screen should be inspected and modified if necessary.
FREQ Select the frequency to analyze.
CYCL Set the number of cycles to average.
STACKS Set the number of repetitions of data acquisition to perform. Each stack will
be recorded as its own block of data in the cache.
GAIN Configure gaining to be automatic for the first stack, manual setting, or SP
only.
NOTCH Notch filter setting for all the channels.
SENSE The value of the sense resistor, if a reference channel has been defined.
TX CUR The transmitter current. This will be set automatically set if a reference
channel has been defined.

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 18 GDP-3224
4.14 CHANNEL TABLE
To the right of the data acquisition parameters is the Channel Table which controls which
channels are on, and the type of component connected to each channel. The electrode locations
and any coil serial numbers are entered here. The Channel Table also displays the data
acquisition results. The Channel table can have several SCREENS which display setup and
results data. The screens for each of the programs are unique to that program. Though many
contain similar data, none of this data is shared between programs. The SCREENS can be
selected by pressing .
Each program has special requirements for how channels are defined. Some programs have
special features and function keys that automatically update locations for channel electrodes.
See the each program's documentation for what parameters are required and which fields are
automatically updated.
Enter channel parameters. Some examples are:
Note: Refer to the appropriate Survey Program chapters for more information on setting up
channels.
Any designator other than OFF will turn on channels for all programs. will toggle
individual channels Off and On when the cursor is in the component column of a channel.
For TDIP and CR, Offset, N or direct electrode locations can be used to locate electrodes.
Special features automatically update electrode locations when transmitter and receiver
locations are altered.
For CR, TDIP, and TEM, Ref is the current reference channel and can be set to any single
channel. Any designator other than Ref can be used for the rest of the channels.
TDIP
CR
AMT, CSAMT
TEM
Ch N
Ch N
Ch Sta/Ant
Ch Sta/Ant
Ch Sta/Ant
Ch ANT
1 ON 1
1 Ref 0
1 Ex 1
1 Ex 1
1 Ex 1
1 Hx 43
2 ON 2
2 Ex 1
2 Hy 211
2 Ex 2
2 Hy 211
2 Hy 53
3 ON 3
3 Ex 2
3 Ey 2
3 Ex 3
3 Ey 1
3 Hz 63
4 ON 4
4 Ex 3
4 Hx 212
4 Ex 4
4 Hx 212
4 OFF
5 ON 5
5 Ex 4
5 Hz 30
5 Ex 5
5 Ex 2
5 OFF
6 ON 6
6 Ex 5
6 OFF
6 Ex 6
6 Hy 321
6 OFF
7 OFF
7 Ex 6
7 OFF
7 Ex 7
7 Ey 2
7 OFF
8 OFF
8 OFF
8 OFF
8 Hy 211
8 Hx 322
8 OFF
1-STATION
7-STATION
2-STATION
1-STATION
TENSOR
SCALAR
VECTOR
3-AXIS

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GDP-3224 Section 4, Page 19 September 2015
For AMT and CSAMT, the programs use the first orthogonal H-field component found for
the respective E-field. Hence, Ex must always precede Hy;Ey precedes Hx, etc., as
shown in the table above. The numbers beside the H-field designators in the Sta/Ant
column are coil serial numbers for coil calibrations. The last digit signifies the antenna type.
Refer to the “SCREEN: CHANNEL TABLE DISPLAY SCREENS” chapters in Sections 11.3 and 13.3
for examples. A list of antenna types are included in Section 18.9 “ANTENNA DESIGNATIONS”.
Numbers beside the E-field designators in the Sta/Ant column are used as station
numbers.
For all programs, station values can optionally be used as an index to station files containing
actual locations, which are merged into the data during post processing.
4.15 CHECK FIELD CONNECTIONS
The Channel Table is also used to verify electrode and coil field connections prior to data
acquisition. Pressing starts the Contact Resistance (CRES) function to measure the
resistance of all the channels. Pressing starts the SCOPE display function to see a
graphical representation of the input signal for individual channels.
Note: The transmitter should be turned OFF prior to pressing , to check the
contact resistance. The transmitter should be turned ON when using the SCOPE feature,
.
After making field connections, and checking CRES and the SCOPE, it is often good practice to
take a single stack of data, and inspect the results before proceeding with acquiring more data. If
the results for the single stack do not appear consistent, press to abandon the data.
Note: If the STACKS are set to any value above 1, the receiver will not stop allowing the
operator to inspect results and SEM values. With multiple STACKS, the receiver will continue to
obtain all stacks unless the operator presses .to halt the process.
Escape
Escape

GDP-3224 INSTRUCTION MANUAL
September 2015 Section 4, Page 20 GDP-3224
4.16 DATA ACQUISITION
After all the setup parameters, and field connections have been confirmed, press to start
data acquisition. Some field programs provide a Time Schedule feature to allow for an
automated sequence of data acquisition cycles.
Immediately after pressing , the GDP will perform the requested gaining. When the
selected gain method has completed, the GDP acquisition will synchronize with the timing card
and indicate that it is taking data. At frequencies of 2 Hz and above, no other indication of
collecting data will be observed, as the GDP is using its full resources to read the A-D cards and
store the raw data into the computer memory. For 1 Hz and below, a progress bar will be
displayed showing the time left for taking data. Intermediate results and SEM values will be
displayed for every 2 seconds of acquired data in order to evaluate the process. When data has
been acquired, the final results will be calculated and displayed.
When taking a single stack of data, the GDP will display the message “Press ESCAPE to
discard, CONTINUE to save –Hit Key”, make an audible signal, and then
pause for the operator's response. The operator must then respond, and the data will be written to
the flash card or discarded, based on their review of the results. After responding, the GDP will
write the data, make an audible signal, and be Ready for further acquisition.
If any error occur during acquisition, the receiver will halt, make an audible signal, post a
message identifying the error, and pause until the operator presses a key to acknowledge the
error. Additional information about the error may be obtained by pressing , to
view the message history. When running an automated Time Schedule, the receiver will not halt
for most errors. Instead, the Schedule will attempt to recover by advancing to the next schedule
line.
To cancel data acquisition, to limit the number of stacks to acquire, or to cancel a Time schedule,
press .
Enter
Enter
SELECT DN
End
Escape