THALES NAVIGATION TM ProMark2 System User Guide www.thalesnavigation.
Copyright Notice Copyright © 2004 Thales Navigation. All rights reserved. No part of this publication or the computer programs described in it may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical photocopying, recording, or otherwise, without prior written permission of Thales Navigation.
THALES NAVIGATION PROFESSIONAL PRODUCTS - LIMITED WARRANTY (North, Central and South America) Thales Navigation warrants their GPS receivers and hardware accessories to be free of defects in material and workmanship and will conform to our published specifications for the product for a period of one year from the date of original purchase. THIS WARRANTY APPLIES ONLY TO THE ORIGINAL PURCHASER OF THIS PRODUCT.
sions or the U.N. Convention on Contracts for the International Sale of Goods, and shall benefit Thales Navigation, its successors and assigns. This warranty gives the purchaser specific rights. The purchaser may have other rights which vary from locality to locality (including Directive 1999/44/EC in the EC Member States) and certain limitations contained in this warranty, including the exclusion or limitation of incidental or consequential damages may not apply.
THALES NAVIGATION PROFESSIONAL PRODUCTS LIMITED WARRANTY (Europe, Middle East, Africa) All Thales Navigation global positioning system (GPS) receivers are navigation aids, and are not intended to replace other methods of navigation. Purchaser is advised to perform careful position charting and use good judgment. READ THE USER GUIDE CAREFULLY BEFORE USING THE PRODUCT. 1.
trade secrets (9) any damage due to accident, resulting from inaccurate satellite transmissions. Inaccurate transmissions can occur due to changes in the position, health or geometry of a satellite or modifications to the receiver that may be required due to any change in the GPS. (Note: Thales Navigation GPS receivers use GPS or GPS+GLONASS to obtain position, velocity and time information. GPS is operated by the U.S.
Contents Chapter 1 Introduction ...........................................................................1 What is the ProMark2 Survey System? ............................................................................. 1 Items Supplied with ProMark2 .......................................................................................... 2 ProMark2 GPS Receiver .............................................................................................. 2 External GPS Antenna ........................
Stop-and-go or Kinematic Base ..................................................................................59 Kinematic Initialization ..............................................................................................61 Overview ......................................................................................................... 61 Bar Point Initialization .................................................................................... 62 Known Point Initialization .................
List of Figures Figure 1.1: Figure 1.2 Figure 1.3 Figure 1.4 Figure 1.5 Figure 1.6 Figure 1.7 Figure 1.8 Figure 1.9 Figure 1.10 Figure 1.11 Figure 1.12 Figure 1.13 Figure 1.14 Figure 1.15 Figure 1.16: Figure 1.17: Figure 1.18: Figure 1.19: Figure 1.20: Figure 1.21: Figure 1.22: Figure 1.23: Figure 1.24: Figure 2.1 Figure 2.2 Figure 2.3 Figure 2.4 Figure 2.5 Figure 2.6 Figure 3.1 Figure 3.2 Figure 3.3 Figure 3.4 Figure 3.5 Figure 3.6 Figure 3.7 Figure 3.8 Figure 3.9 Figure 3.
Figure 3.11 Figure 3.12 Figure 3.13 Figure 3.14 Figure 3.15 Figure 3.16 Figure 3.17 Figure 3.18 Figure 3.19 Figure 3.20 Figure 3.21 Figure 3.22 Figure 3.23 Figure 3.24 Figure 3.25 Figure 3.26 Figure 3.27 Figure 3.28 Figure 3.29 Figure 3.30 Figure 3.31 Figure 3.32 Figure 3.33 Figure 3.34 Figure 3.35 Figure 3.36 Figure 3.37 Figure 3.38 Figure 3.39 Figure 3.40 Figure 3.41 Figure 3.42 Figure 3.43 Figure 3.44 Figure 3.45 Figure 3.46 Figure 3.47 Figure 3.48 Figure 3.49 Figure 3.50 Figure 3.51 Figure 3.
Figure 3.54 Figure 3.55 Figure 3.56 Figure 3.57 Figure 3.58 Figure 3.59 Figure 3.60 Figure 3.61 Figure 3.62 Figure 3.63 Figure 3.64 Figure 3.65 Figure 3.66 Figure 3.67 Figure 3.68 Figure 4.1 Figure 4.2 Figure 4.3 Figure 4.4 Figure 4.5 Figure 4.6 Figure 4.7 Figure 4.8 Figure 4.9 Figure 4.10 Figure 4.11 Figure 4.12 Figure 4.13 Figure 4.14 Figure 4.15 Figure 4.16 Figure 4.17 Figure 4.18 Figure 4.19 Figure 4.20 Figure 4.21 Figure 4.22 Figure 4.23 Figure 4.24 Figure 4.25 Figure 4.26 Figure 4.27 Figure 4.
Figure 4.29 Low Memory Alarm ................................................................................ 139 Figure 4.30 Kinematic Alarm...................................................................................... 140 Figure 4.31 Power Down Screen.................................................................................
List of Tables Table 1.1 Table 2.1 Table 4.1 Table 4.2 Table 4.3 Table 4.4 Table 4.5 Table 4.6 Table 4.7 Table 4.8 Table 4.9 Table 4.10 Table 4.11 Table 4.12 Table 4.13 Table 4.14 Table 4.15 Table 4.16 Table 4.17 Table 4.18 Table 4.19 Performance and Physical Specifications ....................................................... 12 Control Buttons used for Survey Functions.................................................... 24 Survey Screen Selections .......................................................
xiv ProMark2 User’s Guide
Introduction Introduction 1 What is the ProMark2 Survey System? ProMark2 is a complete GPS system providing both navigation and precision surveying. The ProMark2 system, Figure 1.1, includes two or more ProMark2 GPS receivers, GPS antennas, and all ancillary components required to get you up and running and producing quality survey data in a minimum amount of time. Please note that the kinematic initialization bar (Figure 3.
The ProMark2 System operates in conjunction with Ashtech Solutions, Thales Navigation’s highly-automated GPS post-processing engine. Ashtech Solutions is a complete, easy-to-use software package which manages and processes raw GPS data, deriving precise positioning data and presenting the results in easily understood report formats. Items Supplied with ProMark2 The items supplied with ProMark2 are described in the following paragraphs. ProMark2 GPS Receiver The ProMark2 GPS receiver, Figure 1.
External GPS Antenna Figure 1.3 External GPS Antenna External Antenna Cable The external antenna cable, Figure 1.4, connects the ProMark2 receiver to the external antenna. The small end of the cable connects to the ProMark2 through the back of the field receiver bracket. The large end of the cable screws onto the external antenna. Figure 1.4 External Antenna Cable Introduction 3 Introduction The external GPS antenna, Figure 1.3, is required for surveying functions.
Vertical Antenna Extension The vertical antenna extension, Figure 1.5, provides clearance for the antenna cable when the antenna is mounted on a tripod. The length is 3 inches (0.0762 m). Figure 1.5 Vertical Antenna Extension Field Receiver Bracket The field receiver bracket, Figure 1.6, serves a number of functions. First, it provides the means for mounting the ProMark2 GPS receiver to the tripod. Second, it lends support for the external GPS antenna cable connection to the back of the ProMark2 receiver.
HI (Height of Instrument) Measurement Tape Figure 1.7 HI Measurement Tape Field Bag The field bag, Figure 1.8, is used to transport the components of each ProMark2 GPS receiver system between the office and the field. Figure 1.8 Field Bag Introduction 5 Introduction The HI measurement tape, Figure 1.7, is used to measure height of the GPS antenna over the survey point. The end of the tape hooks onto the antenna. The tape is extended until the spike on the tape case is on the point.
Office Receiver Bracket with Download Cable The office receiver bracket with integrated download cable, Figure 1.9, is an interface device that connects the ProMark2 receiver to an office computer for downloading of stored GPS satellite data. When the ProMark2 is placed into the bracket, the download cable is automatically connected to the receiver via the contacts on the back of the receiver. Office Bracket with Download Cable Contacts on back of receiver Figure 1.
Figure 1.11 Ashtech Solutions Software Documentation The following documentation items are supplied with ProMark2: • • • ProMark2 Survey System User’s Guide for Survey - Instructions on using ProMark2 for surveying User’s Guide for Navigation - Instructions on using ProMark2 for navigation. This manual may be included with your system as the MAP330 User Manual.
Additional Items Required but not Supplied In order to conduct your survey, you will need some of the additional equipment discussed below. This equipment is not supplied with the standard ProMark2 survey system. Tripod, Tribrach, and Tribrach Adapter For each ProMark2 receiver in your system, you will need a tripod, tribrach, and tribrach adapter, Figure 1.12, Figure 1.13, and Figure 1.14, to position the GPS antenna over the survey point.
Antenna adapter 5/8 x 11 UNC thread Levelling bubble Introduction Lock for antenna adapter Tribrach adapter Levelling screw Tribrach Optical sight Figure 1.13 Tribrach and Tribrach Adapter Locking tab Figure 1.
Fixed-Height GPS Tripod An option to the tripod, tribrach, and tribrach adapter combination is the fixed-height GPS tripod, Figure 1.15. The fixed-height GPS tripod has the advantage of eliminating the possibility of measuring and/or recording an incorrect HI, since the height is fixed. HI blunders are one of the most common mistakes during data collection. Figure 1.15 Fixed-Height GPS Tripod with Extender and GPS Antenna Note: the vertical antenna extension is 3 inches (0.0762 m).
GPS Range Pole An option for mounting the ProMark2 when operating in kinematic mode is a range pole, Figure 1.16 Introduction Figure 1.
Specifications Table 1.1 lists performance and physical specifications for the ProMark2 system. Table 1.1 Performance and Physical Specifications Parameter Specification GPS survey mode supported Static, Stop-and-go, kinematic Survey accuracy (RMS) - Static Horizontal: 0.005m + 1 ppm Vertical: 0.010m + 2 ppm Survey accuracy (RMS) – Stop-andgo Horizontal: 0.012m + 2.5 ppm Vertical: 0.015m + 2.
Table 1.1 Performance and Physical Specifications (continued) Parameter Specification Internal (2 AA): Up to 8 hours with alkaline @ 20 °C Up to 13 hours with lithium @ 20 °C External + internal (8 AA): Up to 32 hours with alkaline @ 20 °C Up to 52 hours with lithium @ 20 °C See Battery Life on page 25 for details.
Surveying with ProMark2 The ProMark2 system is designed to perform GPS surveys using static, stop-and-go, and kinematic modes of GPS data collection. The three modes run independently and the GPS receiver must be turned off to run in a different mode. In the static data collection mode, the GPS receiver systems simultaneously collect raw data from all available satellites while remaining stationary on their respective points.
Navigating with ProMark2 The ProMark2 includes a wide range of navigational capabilities that you will find useful in your day-to-day surveying operations. Two useful navigation features are: • • The street database and map screen can be utilized to help you find a project site. The ProMark2 serves as an excellent reconnaissance tool. You can enter the known coordinates of the feature you wish to recon as a waypoint, and use ProMark2 to navigate to within 3 meters (10 feet) of the feature in the field.
Loading Maps from MapSend CD • • Launch MapSend software. At the top of the main window, choose Regions and select New (you can also use the toolbar for this purpose). Now you can select with the mouse an area that you want to upload to ProMark 2. When you select the area, a window, where you need to enter a name for the selected region, should appear. See the window below: Figure 1.17: Naming the Selected Region Enter a name for the area.
• Figure 1.19: ProMark2 Connection Error Message • Press Settings and the following window with available ports should appear: Figure 1.20: Testing Connection to ProMark2 • You can specify the port and press Test. Or you can press Autodetect and the software will find the receiver and the port itself. Note, that the baud rate of the serial link depends on the baud rate of the receiver. If you want to upload maps quickly, you need to increase the baud rate in ProMark2.
or Autodetect), and if the serial cable is connected to the PC and not broken, and if the receiver is switched on, the following window should appear: Figure 1.21: Establishing Communication with ProMark2 • Press OK and you will see the following message: Figure 1.
• Press Next and the following window with information about total sizes of your maps and available space should appear: Introduction Figure 1.23: Space Required on ProMark2 to Upload a Region • Press Finish and you will see the progress bar of uploading: Figure 1.24: Region Upload Progress Bars • After the uploading process is finished, you can use maps in ProMark2.
Time in the Field Stop-and-go Since the stop-and-go method requires an initialization, the occupation times are much shorter than the static method. Initialization on a known point can be accomplished in as little as 15 seconds with a 1 second recording interval. Initialization with the initializer bar is typically 5 minutes. Stop-and-go point occupations can be accomplished in as little as 15 seconds with a 1 second recording interval.
Where to Find Information • User’s Guide for Navigation: This manual is supplied with your ProMark2 system, and provides detailed instructions for using the ProMark2 navigation functions. In your particular system, you may find this book entitled MAP330 User Manual. • Ashtech Solutions Manual: This manual provides detailed instructions for postprocessing and presenting the data collected by ProMark2.
22 Promark2 User’s Guide
2 Getting Started Getting Started Overview This chapter discusses the basic features and operation of ProMark2. This is followed by a quick tour of the survey interface to show how ProMark2 can be used to collect survey data with accompanying point attribute data. Control Buttons Figure 2.1 shows the control buttons used for survey functions. Table 2.1 describes the function of each button.
Table 2.1 Control Buttons used for Survey Functions Button 24 Description ENTER The ENTER button is used to either execute the highlighted function, edit the highlighted parameter, or enter the highlighted value. To illustrate, refer to Figure 4.5 on page 110, which shows the Survey Menu screen. The Point Attribute function has been highlighted by using the up/down arrows. To execute the Point Attribute function, press the ENTER button. Another example, Figure 4.
Battery Life Alkaline Battery Life (2 AA Energizer batteries) 12 Discharge Time (Hrs) 11 10 9 8 7 6 5 4 3 2 1 -10 0 +10 +20 +30 +40 +50 +60 Discharge Temperature (degrees C) Lithium Battery Life (2 AA Energizer batteries) 16 Discharge Time (Hrs) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 -10 0 +10 +20 +30 +40 +50 +60 Discharge Temperature (degrees C) Figure 2.
As is evident from the graph of the alkaline batteries, temperature plays a large part in the operational life. This is true for all battery types with the exception of lithiums. The lithium experiences little effect on operational life due to temperature, making lithium the best choice for low-temperature operation. The ProMark2 receiver monitors the status of the battery life during receiver operation. This is accomplished by monitoring the remaining voltage of the batteries as they are discharged.
The final battery alarm is the Extreme Low Power alarm, Figure 2.4. When this alarm appears, the active survey data file is closed and the receiver is shut down after 10 seconds. The current batteries will need to be replaced in order to continue with the survey Getting Started Figure 2.
Installing Batteries To install batteries, remove the battery compartment cover as shown in Figure 2.5. Remove old batteries, if any, and install new batteries, observing polarity as indicated. Replace cover and tighten retaining screw. - + Turn screw counterclockwise to remove battery compartment cover Removing cover + Battery polarity Figure 2.5 Battery Installation Memory Management The ProMark2 receiver includes 8 megabytes of memory available for data storage.
Delete data from receiver after processing. Keep the data files in the receiver until after you have completed the processing. If a data file were corrupted during download, this procedure will provide you with the opportunity to download the file once again. 3. Beware of large detailed street-level map files. The MapSend Streets CD (optional) includes detailed street-level maps which can be downloaded into the ProMark2 receiver. These detailed map files share memory space with the survey data files.
Downloading Collected Data to Office Computer After you have collected data in the field, you must download the data to an office computer and process the data using the Ashtech Solutions software. Use the following procedure to download the receiver data. 1. Insert the ProMark2 receiver into the office bracket, Figure 2.6, making sure that the ProMark2 is securely retained by the hook on the bracket. Figure 2.6 Office Bracket with Download Cable 30 2.
3 Surveying with the ProMark2 System This chapter presents step-by-step procedures for performing a GPS survey with the ProMark2 system. Review this chapter thoroughly before attempting to perform your first survey. As an exercise, take your system outside of your office and perform a sample survey following the procedures outlined below. Then download and process the collected data with Ashtech Solutions. After this exercise, you will be ready to perform your first real survey with the ProMark2 system.
. Figure 3.1 Three-point Control Survey Example If you were to perform this survey with a conventional total station, you would probably plan on running a closed-loop traverse from the existing control point through the two new points, Figure 3.2. The same philosophy can be used for GPS surveys. Figure 3.2 is your network design for this survey. Figure 3.2 Closed-Loop Traverse Design The previous example resulted in a very simple network design. Figure 3.
horizontal and 3 existing vertical control points. Again, if you were to perform this survey with a conventional total station, you would design a traverse plan which produced a strong looking network of closed-loop traverses through the points of the survey. Figure 3.4 shows one possible network design. Figure 3.4 Network Design for 15-Point Control Survey Surveying with ProMark2 33 Surveying with ProMark2 Figure 3.
Although the network design in Figure 3.4 was produced with conventional traversing in mind, this same design can also be used if performing the survey with GPS equipment. When designing your network, keep the following principles in mind: • Design loops through the network points which resemble a square or circle. Avoid loops that are long and skinny. Circular or square shaped loops are stronger geometrically. • Keep the number of points in each loop fewer than 10.
our 3-point control survey network design, shown again in Figure 3.6. 2 3 1 Figure 3.6 Network Design for 3-Point Control Survey Now consider the situation where a 3-receiver ProMark2 system is used. By placing one receiver on each of the 3 points in the network of Figure 3.6, the data for all three vectors can be collected in one observation, rather than the 3 separate observations required with using a 2receiver system.
12 11 5 6 4 10 3 13 9 14 2 8 1 7 15 Figure 3.7 Network Design for 15-Point Control Survey To execute this network design, you must perform a direct GPS observation between all points directly linked. Each link can be viewed as a required GPS vector. Counting the links in this network design, you will find that 19 GPS vectors are required to execute this design.
6 5 7 4 9 8 3 1 2 10 The observation plan shows that it will take 10 separate observation sessions to complete the survey based on the network design in Figure 3.7. Notice that all observation sessions, except for session 6, produce 2 vectors required from the network design. Observation 6 produces only one since there were an odd number of required vectors (19). This completes the discussion on how to execute the observation plan. The next question to answer is when do we perform the observations.
location for the given time. Pay particular attention to satellite availability (number of satellites in view) and the satellite distribution. To assist in analyzing the quality of satellite distribution, Dilution of Precision (DOP) values are presented. DOP is a quality analysis value for satellite distribution. The most popular DOP value is PDOP, which stands for Positional Dilution of Precision. The PDOP value estimates the impact on the precision of your GPS observations due to satellite geometry.
Performing a Static Survey with the ProMark2 The procedures for performing a static survey with the ProMark2 system can be broken down into four primary categories: equipment check, site selection, system setup, and data collection. Following the steps presented below should result in successful execution of your GPS survey. Equipment Check Prior to leaving the office to perform your survey, be sure to perform a thorough check of your GPS equipment: 1.
signals transmitted by satellites approximately 21,000 km from earth. Being of relatively high frequency and low power, these signals are not very effective at penetrating through objects that may obstruct the line-of-sight between the satellites and the GPS receiver. Virtually any object that lies in the path between the GPS receiver and the satellites will be detrimental to the operation of the system. Some objects, such as buildings, will completely block out the satellite signals.
System Setup Now that the survey site is identified, it is time to set up the ProMark2 receiver system over the point to be surveyed. The setup procedure is illustrated below. 1. Set up tripod / tribrach combination over the survey point. This is done in precisely the same manner as for a conventional total station. If using a fixed-height GPS tripod rather than a conventional tripod, a tribrach is not required. 2. Attach the vertical extension bar and a tribrach adapter to the GPS antenna.
Figure 3.10 GPS Antenna Mounted on Tripod using Tribrach and Extender 4. Place the ProMark2 receiver into the field bracket. With the field bracket in hand, place the base of the ProMark2 receiver into the cradle and then tilt the receiver into place, as seen in Figure 3.11. Retaining hook Hook engaged Figure 3.11 Mounting ProMark2 into Field Bracket Cradle 5. Attach the field bracket / ProMark2 combination onto the tripod Be careful not to disturb the tripod when mounting the bracket.
comfortable height for operation of receiver, as shown in Figure 3.12. Surveying with ProMark2 Figure 3.12 Field Bracket on Tripod 6. Connect GPS antenna cable. At the GPS antenna, screw in the antenna cable connector until the connection is tight. Connect the other end of the cable to the back of the ProMark2 receiver. This connection is made by simply pushing the connector into the back of the receiver. Figure 3.13 shows the proper connection of the antenna cable to the antenna and receiver.
Figure 3.13 Antenna Cable Connection at the Antenna and Receiver 7. Measure and record instrument height (HI) of GPS antenna The GPS antenna is the data collection point for GPS observations, i.e. the computed position for the point, horizontally and vertically, will be the location of the GPS antenna. It is for this reason that the antenna is precisely positioned over the point to be surveyed. Yet the location of the point to be surveyed is not at the center of the antenna, but below it on the ground.
Data Collection With your ProMark2 receiver system set up over the point to be surveyed you are ready to begin data collection. This section provides you with the step-by-step process of using the user-interface of the ProMark2 to prepare the receiver to collect GPS data at this survey point. For further details on any screen presented in these procedures, go to Chapter 4, Detailed Screen Descriptions, and then locate the description for the particular screen of interest. 1.
receiver. The opening screen appears, followed by the Mode screen, Figure 3.15. Figure 3.15 Mode Screen 2. Select Survey from the Mode screen. Do not use Navigate Mode for data collection. The accuracy of the downloaded waypoints is no better than 3-16 meters. With Survey highlighted, press Enter to bring up the Survey screen, Figure 3.16. Figure 3.16 Survey Screen The Survey screen provides the opportunity to perform receiver and survey setup functions prior to beginning survey data collection.
Data will begin the data collection process. Steps 3-11 below cover receiver and survey setup functions prior to the start of actual data storage. You will not need to access all of these functions each time you perform a survey, since some items, such as selection of units and receiver ID will remain the same for most surveys. 3. Select Setup from the Survey screen. With Setup highlighted, press ENTER to bring up the Survey Menu, Figure 3.17. Surveying with ProMark2 Figure 3.
Figure 3.18 Point Attribute Screen The Point Attribute screen lets you enter attribute information for the survey point you are about to observe. The attribute information comprises the following parameters: • A 4-character site ID. You must assign a unique site ID to each point surveyed in your project. If you observe the same point more than once, assign this point the same site ID for each data collection session. • An optional 20-character narrative description of this point.
The File Manager screen provides you with the ability to delete old data files to free up more memory for the current observation session. The screen includes a list of the data files currently in memory and the tools to delete these files.
Figure 3.20 Unit of Measure Screen The Unit of Measure screen lets you select the units of measure in which you wish to enter antenna height information. Also, the selected units determine the units of measure the Observation Timer utilizes. Press Enter to access the selection list of units. Highlight the desired selection and press Enter again. Select Save to return to the Survey Menu. 9. From the Survey Menu, select Receiver ID. Change the ID if the current entry is not the desired one.
The Receiver ID screen provides you with the ability to enter the 4-character receiver ID which is used in naming the raw data files. Each raw data file from this receiver will include this 4-character receiver ID. The receiver ID must be unique among all receivers used together in a survey. Otherwise, raw data files will be given the same name, causing problems when the data is downloaded to the same location on the office computer for processing. Press Enter to edit the receiver ID.
With Contrast highlighted, press Enter to bring up the Contrast screen, Figure 3.22. Figure 3.22 Contrast Screen The Contrast screen provides you with the ability to change the contrast of the receiver screen. Use the left/right arrows to adjust the contrast. Press the ENTER button when finished to return to the Survey Menu. 11. Press the Esc button to exit the Survey Menu. All setup functions have been examined and set.
You have completed the setup process and are now ready to begin data collection. The remaining steps will present how to start the data collection process and how to monitor the progress of your survey. 12. From the Survey screen, select Collect Data. With Collect Data highlighted, press ENTER to bring up the Satellite Status screen, Figure 3.24. Surveying with ProMark2 53 Surveying with ProMark2 Figure 3.
Figure 3.24 Satellite Status Screen The Satellite Status screen provides you the status of GPS satellite acquisition and tracking by the receiver. Upon entry to this screen, satellites available for tracking are displayed on the sky plot. Once a satellite is acquired, its number is displayed in reverse video (black box with white numbers) and a bar appears in the table below representing signal strength.
the Survey Status screen, Figure 3.25. The Survey Status screen provides information on the status of your survey during the data collection period. Information presented here will help you determine when enough data has been collected during this observation to ensure a quality position when the data is later processed. From this screen, monitor the following observation quality indicators: • Observation Timer The Obs. Timer field displays the current state of the observation timer.
10 KM (6MI) - displays when there has been enough data collected to process a vector between this receiver and any other receiver simultaneously collecting data within 10 KM (6 MI) of this receiver. 15 KM (9MI) - displays when there has been enough data collected to process a vector between this receiver and any other receiver simultaneously collecting data within 15 KM (9 MI) of this receiver.
pressing the Menu button. This is the same Survey Menu discussed earlier. All setup functions in the Survey Menu can be utilized at any time during the observation. In other words, steps 3-8 above can be performed after data collection begins, if desired. This allows data collection to begin prior to the setup process, reducing time on point.
Kinematic Surveying with the ProMark2 System The kinematic data collection process requires at least two receivers collecting data simultaneously. One receiver is called the base and must remain stationary throughout the data collection. Typically, the base receiver will occupy a survey point for which the precise position is already known. Once operational, the base system simply collects and stores raw data from all satellites with line of sight to the GPS antenna.
after a loss of lock is critical to maintaining survey accuracy. Finally, kinematic surveys are most successful when the kinematic base receiver is close to the kinematic rover. Accuracies of GPS-derived positions are distance-dependent. The greater the distance between the GPS receivers, the larger the uncertainty. In an ideal case, the kinematic base should be on the same project site as the kinematic rover.
initialization, be sure to incorporate the bar as part of your base setup as shown in Figure 3.26. Figure 3.26 ProMark2 Antennae with Initializer Bar Note: The base antenna is centered and levelled above the survey mark. The rover antenna is offset on the initializer bar. The initialization bar gives an accurate baseline of 0.2 m (0.656 ft) for initialization, Figure 3.27. Figure 3.
The rover antenna is transferred to the rover pole after initialization is completed, Figure 3.28. Figure 3.28 Rover Antenna from Initializer Bar to Range Pole Overview A unique aspect of the kinematic mode of data collection is the requirement to initialize the survey. The initialization process is required to produce highly precise positions. Prior to initialization, data collected by the kinematic rover system will produce positions at a degraded level of accuracy.
described below along with recommendations on when to use them. Bar Point Initialization Bar Point initialization is specific to ProMark2 and is performed using the supplied kinematic initializer bar. Bar Point initialization is the second quickest method of initializing a kinematic survey after initializing on a known point. Initialization time when using the bar is 5 minutes. The bar method is best used when there is no known point to utilize for initialization.
Known Point Initialization The quickest method to initialize a kinematic survey is Known Point initialization. In most situations, initialization on a known point can be accomplished in 10 seconds or less. It's very important to note that the relationship between the kinematic base point and the known point to be used to initialize must be very accurately established.
point 0017, you get too close to the building causing the Kinematic SV Alarm to sound, indicating loss of initialization. You must re-initialize. You return to the initializer bar. If you were careful not to move (rotate) the bar, you can treat the bar point as a known point and perform a Known Point initialization. The bar point is considered known because you successfully positioned it when you performed your Bar Point initialization.
New Point Initialization The New Point method of kinematic initialization is the most time consuming method. It should be used only when other methods are not feasible. Observation times for initialization using the New Point method range from 15-30 minutes for a ProMark2 System. The observation time depends on the distance between the kinematic base and kinematic rover during initialization. The New Point initialization method is simply a static survey of the new point.
Figure 3.29 Mode Screen 2. Select Survey from the Mode screen. With Survey highlighted, press Enter to bring up the Survey screen, Figure 3.30. Figure 3.30 Survey Screen The Survey screen provides the opportunity to perform receiver and survey setup functions prior to beginning survey data collection. If you select Setup, you will be presented with the Survey Menu from which parameters are set. Selecting Collect Data will begin the data collection process.
Steps 3-9 below cover receiver and survey setup functions prior to the start of actual data storage. You will not need to access all of these functions each time you perform a survey, since some items, such as selection of units and receiver ID will remain the same for most surveys. 3. Select Setup from the Survey screen. With Setup highlighted, press ENTER to bring up the Survey Menu, Figure 3.31. Surveying with ProMark2 Figure 3.
Figure 3.32 Point Attribute Screen The Point Attribute screen lets you enter attribute information for the survey point you are about to observe. The attribute information comprises the following parameters: • A 4-character site ID. You must assign a unique site ID to each point surveyed in your project. If you observe the same point more than once, assign this point the same site ID for each data collection session. • An optional 20-character narrative description of this point.
7. From the Survey Menu, select Antenna. Set the antenna height parameters for this point. Select Slant if you are measuring the antenna height to the outside edge of the GPS antenna, or Vertical if you are measuring the antenna height to the bottom of the GPS antenna. Enter the measured antenna height value. Change the units of measure by selecting Units from the Survey Menu (page 47). 8. From the Survey Menu, select File Manager.
Figure 3.34 File Manager Screen The File Manager screen provides you with the ability to delete old data files to free up more memory for the current observation session. The screen includes a list of the data files currently in memory and the tools to delete these files.
The Unit of Measure screen lets you select the units of measure in which you wish to enter antenna height information. Also, the selected units determine the units of measure the Observation Timer utilizes. Press Enter to access the selection list of units. Highlight the desired selection and press Enter again. Select Save to return to the Survey Menu. 10. From the Survey Menu, select Receiver ID. Change the ID if the current entry is not the desired one.
Figure 3.36 Receiver ID Screen The Receiver ID screen provides you with the ability to enter the 4-character receiver ID which is used in naming the raw data files. Each raw data file from this receiver will include this 4-character receiver ID. The receiver ID must be unique among all receivers used together in a survey. Otherwise, raw data files will be given the same name, causing problems when the data is downloaded to the same location on the office computer for processing.
The Contrast screen provides you with the ability to change the contrast of the receiver screen. Use the left/right arrows to adjust the contrast. Press the ENTER button when finished to return to the Survey Menu. 12. Press the Esc button to exit the Survey Menu. All setup functions have been examined and set. Press the Esc button to close the Survey Menu and return to the Survey screen, repeated in Figure 3.38. Surveying with ProMark2 73 Surveying with ProMark2 Figure 3.
Figure 3.38 Survey Screen You have completed the setup process and are now ready to begin data collection. The remaining steps will present how to start the data collection process and how to monitor the progress of your survey. 13. From the Survey screen, select Collect Data. With Collect Data highlighted, press ENTER to bring up the Satellite Status screen, Figure 3.39.
The Satellite Status screen provides you the status of GPS satellite acquisition and tracking by the receiver. Upon entry to this screen, satellites available for tracking are displayed on the sky plot. Once a satellite is acquired, its number is displayed in reverse video (black box with white numbers) and a bar appears in the table below representing signal strength. When 4 healthy satellites above a 10° elevation are acquired, storage of GPS satellite data automatically begins.
the Survey Status screen, Figure 3.40. Figure 3.40 Survey Status Screen The Survey Status screen provides information on the status of your survey during the data collection period. Information presented here will help you determine when enough data has been collected during this observation to ensure a quality position when the data is later processed. From this screen, monitor the following observation quality indicators: • Observation Timer The Obs.
10 KM (6MI) - displays when there has been enough data collected to process a vector between this receiver and any other receiver simultaneously collecting data within 10 KM (6 MI) of this receiver. 15 KM (9MI) - displays when there has been enough data collected to process a vector between this receiver and any other receiver simultaneously collecting data within 15 KM (9 MI) of this receiver.
The Survey Menu is accessible any time during the data collection process by pressing the Menu button. This is the same Survey Menu discussed earlier. All setup functions in the Survey Menu can be utilized at any time during the observation. In other words, steps 3-8 above can be performed after data collection begins, if desired. This allows data collection to begin prior to the setup process, reducing time on point.
Stop-and-go Rover There are two rover modes available—Stop-and-go and Kinematic. The mode must be selected prior to starting the survey. The following steps refer to the setup for stop-and-go operation. 1. Turn on the ProMark2 receiver by pressing the red on/off button on the face of the receiver. The opening screen appears, followed by the Mode screen, Figure 3.41. Surveying with ProMark2 Figure 3.41 Mode Screen 2. Select Survey from the Mode screen.
With Survey highlighted, press Enter to bring up the Survey screen, Figure 3.42. Figure 3.42 Survey Screen The Survey screen provides the opportunity to perform receiver and survey setup functions prior to beginning survey data collection. If you select Setup, you will be presented with the Survey Menu from which parameters are set. Selecting Collect Data will begin the data collection process. Steps 3-9 below cover receiver and survey setup functions prior to the start of actual data storage.
4. From the Survey Menu, select Survey Mode. Set the mode to Stop-and-Go. 5. From the Survey Menu, select Point Attribute. Enter attribute information for the point you are about to survey. With Point Attribute highlighted, press Enter to bring up the Point Attribute screen, Figure 3.44. Figure 3.44 Point Attribute Screen Surveying with ProMark2 81 Surveying with ProMark2 Figure 3.
The Point Attribute screen lets you enter attribute information for the survey point you are about to observe. The attribute information comprises the following parameters: • A 4-character site ID. You must assign a site ID to each point surveyed in your project. • A site occupation timer that counts down in seconds. • An optional 20-character narrative description of this point. • An optional initialization setting; either no initialization, a known point or an initializer bar point.
3.46). Note the Time on Site has been set to the default 300 seconds (5 minutes). To enter additional point attribute information such as a site description, highlight the field to be changed, and press the ENTER button. Change the values to those desired. Select Save when you are finished to return to the Survey Menu. Refer to the description of the Point Attribute-Stop-and-go screen, page page 114, for further details regarding this screen. 6.
Figure 3.47 Recording Interval Screen 7. From the Survey Menu, select Antenna. Set the antenna height parameters for this point. Select Slant if you are measuring the antenna height to the outside edge of the GPS antenna, or Vertical if you are measuring the antenna height to the bottom of the GPS antenna. Enter the measured antenna height value. Change the units of measure by selecting Units from the Survey Menu (page 110). 8. From the Survey Menu, select File Manager.
The File Manager screen provides you with the ability to delete old data files to free up more memory for the current observation session. The screen includes a list of the data files currently in memory and the tools to delete these files.
Figure 3.49 Unit of Measure Screen The Unit of Measure screen lets you select the units of measure in which you wish to enter antenna height information. Also, the selected units determine the units of measure the Observation Timer utilizes. Press Enter to access the selection list of units. Highlight the desired selection and press Enter again. Select Save to return to the Survey Menu. 10. From the Survey Menu, select Receiver ID. Change the ID if the current entry is not the desired one.
The Receiver ID screen provides you with the ability to enter the 4-character receiver ID which is used in naming the raw data files. Each raw data file from this receiver will include this 4-character receiver ID. The receiver ID must be unique among all receivers used together in a survey. Otherwise, raw data files will be given the same name, causing problems when the data is downloaded to the same location on the office computer for processing. Press Enter to edit the receiver ID.
With Contrast highlighted, press Enter to bring up the Contrast screen, Figure 3.22. Figure 3.51 Contrast Screen The Contrast screen provides you with the ability to change the contrast of the receiver screen. Use the left/right arrows to adjust the contrast. Press the ENTER button when finished to return to the Survey Menu. 12. Press the Esc button to exit the Survey Menu. All setup functions have been examined and set.
You have completed the setup process and are now ready to begin data collection. The remaining steps will present how to start the data collection process and how to monitor the progress of your survey. 13. From the Survey screen, select Collect Data. With Collect Data highlighted, press ENTER to bring up the Satellite Status screen, Figure 3.53. Surveying with ProMark2 89 Surveying with ProMark2 Figure 3.
Figure 3.53 Satellite Status Screen The Satellite Status screen provides you the status of GPS satellite acquisition and tracking by the receiver. Upon entry to this screen, satellites available for tracking are displayed on the sky plot. Once a satellite is acquired, its number is displayed in reverse video (black box with white numbers) and a bar appears in the table below representing signal strength.
14. From the Satellite Status screen, press the Nav/Surv button. While displaying the Satellite Status screen, press the Nav/Surv button to bring up the Survey Status screen, Figure 3.54. Survey Status Screen The Survey Status screen provides information on the status of the survey during the data collection period. From this screen, you can monitor the following observation quality indicators: • Remain - The Remain field displays the amount of time remaining in the current data point.
15. Start is highlighted and the receiver is ready to log point attribute information. Press the Enter button to start point attribute data collection. The Remain field will begin to count down. When the Remain field reaches 00:00:00, Stop is highlighted, point attribute data collection is stopped, and the site ID is automatically incremented. Note: You can stop the point attribute data collection by pressing ENTER when Stop is highlighted.
Kinematic Rover There are two rover modes available—Stop-and-go and Kinematic. The mode must be selected prior to starting the survey. The following steps refer to the setup for the kinematic rover mode of operation. 1. Turn on the ProMark2 receiver by pressing the red on/off button on the face of the receiver. The opening screen appears, followed by the Mode screen, Figure 3.55. Surveying with ProMark2 Figure 3.55 Mode Screen 2. Select Survey from the Mode screen.
Figure 3.56 Survey Screen The Survey screen provides the opportunity to perform receiver and survey setup functions prior to beginning survey data collection. If you select Setup, you will be presented with the Survey Menu from which parameters are set. Selecting Collect Data will begin the data collection process. Steps 3-9 below cover receiver and survey setup functions prior to the start of actual data storage.
The Survey Menu provides you access to receiver and survey setup functions. You may wish to exercise some of these functions prior to beginning data collection. 4. From the Survey Menu, select Survey Mode. Set the mode to Kinematic. 5. From the Survey Menu, select Point Attribute. Enter attribute information for the point you are about to survey. With Point Attribute highlighted, press Enter to bring up the Point Attribute screen, Figure 3.58.
Figure 3.58 Point Attribute Screen The Point Attribute screen lets you enter attribute information for the survey point you are about to observe. The attribute information comprises the following parameters: • A 4-character site ID. You must assign a site ID to each point surveyed in your project. • An optional 20-character narrative description of this point. • An optional initialization setting; either no initialization, or an initialization bar point, or initialize as a known point.
Highlight Bar and select Save. The Point Attribute screen (Figure 3.60) will be shown. Note the Time on Site has been set to the default 300 seconds (5 minutes). Figure 3.60 Point Attribute Screen To enter additional point attribute information such as a site description, highlight the field to be changed, and press the ENTER button. Change the values to those desired. Select Save when you are finished to return to the Survey Menu. Surveying with ProMark2 97 Surveying with ProMark2 Figure 3.
Refer to the description of the Point Attribute- Kinematic screen, page 116, for further details regarding this screen. Note: The Point Attribute – Kinematic screen allows you to set the Time on Site field when the Initialize field is set to Bar or Known Point. Otherwise the Time on Site field is not available. Note: The Known Point option is only available after a point has been tagged as Control in stop-and-go mode.
Figure 3.62. The File Manager screen provides you with the ability to delete old data files to free up more memory for the current observation session. The screen includes a list of the data files currently in memory and the tools to delete these files.
Figure 3.63. Figure 3.63 Unit of Measure Screen The Unit of Measure screen lets you select the units of measure in which you wish to enter antenna height information. Also, the selected units determine the units of measure the Observation Timer utilizes. Press Enter to access the selection list of units. Highlight the desired selection and press Enter again. Select Save to return to the Survey Menu. 10. From the Survey Menu, select Receiver ID. Change the ID if the current entry is not the desired one.
The Receiver ID screen provides you with the ability to enter the 4-character receiver ID which is used in naming the raw data files. Each raw data file from this receiver will include this 4-character receiver ID. The receiver ID must be unique among all receivers used together in a survey. Otherwise, raw data files will be given the same name, causing problems when the data is downloaded to the same location on the office computer for processing. Press Enter to edit the receiver ID.
Figure 3.65 Contrast Screen The Contrast screen provides you with the ability to change the contrast of the receiver screen. Use the left/right arrows to adjust the contrast. Press the ENTER button when finished to return to the Survey Menu. 12. Press the Esc button to exit the Survey Menu. All setup functions have been examined and set. Press the Esc button to close the Survey Menu and return to the Survey screen, repeated in Figure 3.66.
You have completed the setup process and are now ready to begin data collection. The remaining steps will present how to start the data collection process and how to monitor the progress of your survey. 13. From the Survey screen, select Collect Data. With Collect Data highlighted, press ENTER to bring up the Satellite Status screen, Figure 3.67. Surveying with ProMark2 103 Surveying with ProMark2 Figure 3.
Figure 3.67 Satellite Status Screen The Satellite Status screen provides you the status of GPS satellite acquisition and tracking by the receiver. Upon entry to this screen, satellites available for tracking are displayed on the sky plot. Once a satellite is acquired, its number is displayed in reverse video (black box with white numbers) and a bar appears in the table below representing signal strength.
the Survey Status screen, Figure 3.68. The Survey Status screen provides information on the status of our survey during the data collection period. From this screen, monitor the following observation quality indicators: • Elapsed - The Elapsed field displays the amount of time passed since the data collection session started. Note: The Remain time counter is displayed in Kinematic mode only during a point initialization. Otherwise the Elapsed time counter is displayed.
Note: The Elapsed field is replaced by the Remain field during a point initialization. The Remain field will begin to count down. When the Remain field reaches 00:00:00, Stop is highlighted, data collection is stopped, and the site ID is automatically incremented. Transfer the antenna from the initializer bar to the range pole. 16. Stop is highlighted. Stop the data collection session by pressing ENTER. 17. Turn off the receiver when finished.
4 Detailed Screen Descriptions Opening Screen Page 96 Navigate Mode Screen Page 96 Survey Navigate Refer to MAP330 User Manual Setup Alarm displays for following conditions: 1. No external antenna 2. Low battery 3. Extreme low power 4. Low memory 5. Kinematic Page 125-128 Edit screens allow entry or editing: 1. Site ID 2. Site descriptor 3. Receiver ID 4. Time on site 5. Recording interval 6.
Mode Screen The opening screen, Figure 4.2, appears for a few seconds when you turn on the ProMark2. This is followed by the Mode screen, Figure 4.3. If, while still in the opening screen, the Enter key is pressed, this will take you immediately to the Mode screen, Figure 4.6. The Mode screen lets you select navigation mode or survey mode. Navigation mode is described in detail in the Map330 User Manual supplied with ProMark 2. Survey mode is described elsewhere in this manual.
Survey Screen Figure 4.4 Survey Screen Table 4.1 Survey Screen Selections Selection Description Setup Calls the Survey Menu, page 110. Collect Data Calls the Satellite Status screen, page 134, or displays an alarm if there is no external antenna connected. Screen Descriptions 109 Screen Descriptions The Survey screen, Figure 4.
Survey Menu Screen The Survey Menu screen, Figure 4.5, gives you control over receiver operational parameters, survey data collection parameters, and receiver raw data files. All functions found in the Survey Menu can be utilized at any time before or during survey data collection. The Survey Menu is accessed by either selecting Setup from the Survey screen, or by pressing the Menu button from the Survey Status screen or the Satellite Status screen. Table 4.2 describes the selections in the Survey Menu.
Survey Mode Screen Figure 4.6 Survey Mode Screen Table 4.3 Survey Mode Screen Parameters Parameter Description Survey Mode Lets you set the survey mode. Static, Stop-and-Go, and Kinematic are the available options. Default is Static. Note: The survey mode selected will be saved after a power cycle. Save Saves settings. Note: The Survey Mode cannot be changed after selecting Collect Data in the Survey Menu. The receiver will perform only the survey mode that is currently set.
Point Attribute - Static Screen The Point Attribute screen lets you enter and store attribute information of the point at which data is being or will be collected. The entered attribute information is stored along with the raw survey data and downloaded for use during data processing. The Point Attribute screen is accessed by selecting Point Attribute in the Survey Menu. There are three Point Attribute screens, one for each of the three survey modes available through the Survey Mode screen.
Table 4.4 Point Attribute - Static Screen Parameters (continued) Parameter Description Note: Site description information is shared by the three different modes of operation. So site description entries added, edited, or deleted in static, stop-and-go, or kinematic mode will be reflected when in the other modes. Screen Descriptions 113 Screen Descriptions Note: After a power cycle, all parameters set will be saved with the exception of the site ID, which will display the default value “????”.
Point Attribute - Stop-and-go Screen The Point Attribute Stop-and-go screen, Figure 4.8, lets you enter and store point attribute information when in stop-and-go mode. Table 4.5 describes the screen parameters. Figure 4.8 Point Attribute - Stop-and-go Screen Table 4.5 Point Attribute - Stop-and-go Parameters Parameter 114 Description Site ID Lets you enter a 4-character alphanumeric site ID. Valid characters are all characters except for space, < > : and \.
Table 4.5 Point Attribute - Stop-and-go Parameters (continued) Parameter Description Lets you set the point as a control point for future use as a known point initialization point. Set to Yes and the point occupied becomes available as a known initialization point and is included in the site id table. Set to No and the point is a standard point occupation. The default setting is No. Save Saves settings.
Point Attribute - Kinematic Screen The Point Attribute - Kinematic screen, Figure 4.9, lets you set and save point attribute information when kinematic mode is selected. Table 4.6 describes the screen parameters. Figure 4.9 Point Attribute - Kinematic Screen Table 4.6 Point Attribute - Kinematic Screen Parameters Parameter Description Site ID Lets you enter a 4-character alphanumeric site ID. Valid characters are all characters except for space, < > : and \.
Site ID Screen The Site ID screen lets you select a known site ID with its associated site description during a known point initialization. The site IDs listed are site IDs entered and occupied with the control tag set to Yes. Table 4.7 describes the Site ID screen parameters. Figure 4.10 Site ID Screen Table 4.7 Site ID Screen Parameters Parameter Description CT23… etc. A list of the site IDs including associated site descriptors set as control during previous point occupations.
Site Description Screen The Site Description screen, Figure 4.11, can be accessed from the Point Attribute screen when the Site Description field is highlighted and the Enter key is pressed. The Site Description screen lets you select a descriptor from the descriptor list, enter a new descriptor, edit an existing descriptor, and delete a descriptor. The descriptor can be 20 characters in length. The site description table allows up to 16 site descriptors on the list.
Init Mode Screen The Init Mode screen lets you select a type of point initialization. The options include , Bar, and Known. Table 4.9 describes the screen parameters. Figure 4.12 Init Mode Screen Table 4.9 Init Mode Screen Parameters Parameter Description Sets the initialization tag for the point occupation to none. The point will not be listed as an initialization point. Bar Sets the initialization tag for the point occupation to kinematic bar.
Recording Interval Screen The Recording Interval screen, Figure 4.13, lets you set the receiver record interval in seconds. Table 4.10 describes the recording interval screen parameters. Figure 4.13 Recording Interval Screen Table 4.10 Recording Interval Screen Parameters Parameter Description Seconds Calls the Recording Interval List screen, page 121. The range is 1 to 120 seconds. Default is 10. Save Saves settings. Note: The parameter is saved after a power cycle.
Recording Interval List Screen The Recording Interval screen lets you select the receiver recording interval in seconds. Table 4.11 describes the screen parameters. Figure 4.14 Recording Interval List Screen Table 4.11 Recording Interval List Screen Parameters Parameter Description 2 Sec Sets the receiver recording interval to 2 seconds. 5 Sec Sets the receiver recording interval to 5 seconds. 10 Sec Sets the receiver recording interval to 10 seconds.
Antenna Screen The Antenna screen, Figure 4.15, lets you set the GPS antenna parameters of the point at which data is being or will be collected. Table 4.12 describes the screen parameters. d Figure 4.15 Antenna Screen Table 4.12 Antenna Screen Parameters Parameter Description Height Type Lets you select antenna height type: Slant or Vertical. Default is Slant Antenna Height Lets you enter the antenna height in the units that are set in the Unit of Measure screen, page 125.
File Manager Screen Upper pane Lower pane Figure 4.16 File Manager Screen Table 4.13 File Manager Screen Parameters Parameter Description R1234...... etc. A list of the raw data files stored in the ProMark2 GPS receiver. Up to 100 files can be stored in the receiver at one time. Files are automatically closed when the receiver is turned off.
Table 4.13 File Manager Screen Parameters (continued) Parameter Description Esc Returns screen to Survey Menu. Lower pane of display Information on highlighted file indicating name and size. Also displays amount of free memory available for data storage. R 1234 A 01.344 Day number when file was opened Year Session ID Receiver ID File prefix Figure 4.17 File Naming Convention for Survey Data Files Note: The session ID increments A-Z, which provides up to 26 unique session IDs for any given day number.
Unit of Measure Screen Figure 4.18 Unit of Measure Screen Table 4.14 Unit of Measure Screen Parameters Parameter Description Units As shown in the figure, this is the currently selected unit of measure. Pressing ENTER will produce a selection list of the available units of measure: Meters, International Feet, U.S. Feet. Save Saves setting. Note: The setting of Unit of Measure is saved after a power cycle. Screen Descriptions 125 Screen Descriptions The Unit of Measure screen, Figure 4.
Receiver ID Screen The Receiver ID screen, Figure 4.19, lets you set the identifier of the receiver to be used in the raw survey data file name. Each raw survey data file downloaded from this receiver will include this identifier in the name. Be sure to use a unique identifier for each receiver used in a survey, i.e. different identifier for each receiver. This will prevent problems with similar file names when the files from multiple receivers are downloaded to the same directory in the office computer.
Contrast Screen Figure 4.20 Contrast Screen Screen Descriptions 127 Screen Descriptions The Contrast screen, Figure 4.20, is accessed from the Survey menu, page 110. The Contrast screen lets you adjust the screen contrast using the left and right arrows. Press the ENTER key to exit the screen.
Survey Status - Static Screen The Survey Status - Static screen, Figure 4.21, provides important status information regarding receiver operation and the current data collection session. All important information about the survey can be viewed from this screen.
Table 4.16 Survey Status - Static Selections (continued) Selection Description The Obs. Timer field displays the current state of the observation timer. The possible displayed values are: 0 KM (0 MI) - displays when there has not been enough data collected to accurately process a vector between this receiver and others simultaneously collecting data.
Survey Status - Stop-and-go Screen The Survey Status – Stop-and-go screen, Figure 4.22, provides important status information regarding receiver operation and the current data collection session. All important information about the survey can be viewed from this screen.
Table 4.17 Survey Status - Stop-and-go Screen Parameters (continued) Parameter Description The START button lets you begin point attribute data logging. When shown in reverse video (white lettering/black background) the receiver is not storing point attribute information. Press the ENTER button to start point attribute data logging. Stop The STOP button lets you stop the point attribute data logging before the time remaining reaches 00:00:00.
Survey Status – Kinematic Screen The Survey Status – Kinematic screen, Figure 4.23, provides important status information regarding receiver operation and the current data collection session. All important information about the survey can be viewed from this screen.
Table 4.18 Survey Status - Kinematic Screen Parameters (continued) Parameter Description The PDOP field displays the PDOP value at any given time, computed from all logged healthy satellites above 10 degrees elevation. Start The start button lets you begin the data session. When shown in reverse video (white lettering/black background) the receiver is not storing data. Press the enter button to start data collection. Stop The stop button lets you stop the data session.
Satellite Status Screen The Satellite Status screen, Figure 4.24, provides a visual display of the GPS satellites which are currently available (i.e., above the horizon), satellites that are being tracked by the receiver, and the signal strength of the tracked satellites. Additionally, this screen displays current power status and memory status.
Table 4.19 Satellite Status Screen Parameters Parameter Screen Descriptions The memory status indicator (box with percent sign in lower right corner of display) provides a graphical and numerical indication of the percentage of memory available for storing data. The numerical value blinks once every recording interval when data is being stored to memory.
Edit Screens Three screens appear at appropriate times to allow you to enter or change parameters. These screens derive from the site ID, site descriptor, and receiver ID variables, as shown in Figure 4.25. Figure 4.25 Edit Screens - Site ID, Site Descriptor, Receiver ID. To change a parameter, use the arrow keys to navigate around the keyboard. When the character you want to enter or change is highlighted, press ENTER. Highlight OK and press ENTER when finished.
Alarm Screens No External Antenna The ProMark2 will not allow you to collect survey data without the external antenna. The No External Antenna alarm, Figure 4.26, appears if one of the two following conditions occurs: • • You attempt to begin survey data collection (you select Collect Data from the Survey screen) without an external antenna attached. To rectify, press ENTER to clear the alarm, connect the external antenna, and begin data collection.
again unless you turn off the receiver and turn it back on. Figure 4.27 Low Battery Alarm Extreme Low Power The Extreme Low Power alarm, Figure 4.28, appears when the receiver feels it can no longer guarantee continued, uninterrupted operation. At the appearance of this alarm, the receiver closes the active survey data file and shuts down after 10 seconds. Figure 4.
Low Memory Figure 4.29 Low Memory Alarm Screen Descriptions 139 Screen Descriptions The Low Memory alarm, Figure 4.29, appears when remaining memory for survey data storage is 5% or less. If you close the Low Memory alarm screen by pressing the ENTER key, the alarm will not appear again unless you turn off the receiver and turn it back on.
Kinematic Alarm The Kinematic Alarm screen, Figure 4.30, appears when insufficient satellite measurements are available to maintain kinematic initialization. When the alarm is active, the # Sats field in Survey Status continues to display the number of tracked satellites independent of data quality. To maintain centimeter-level accuracy, you must reinitialize after the alarm appears. To clear the alarm message, press any key. Figure 4.
Power Down Screen The Power Down screen, Figure 4.31, appears when the Power button is pressed momentarily during operation. When this screen appears, the ProMark2 will turn itself off in 5 seconds, or you can abort the power down by pressing the Esc key. Figure 4.
142 ProMark2 User’s Guide
INDEX A active survey data file ......................27 almanac .............................................37 antenna height ............ 50, 71, 86, 100 Ashtech ..............................................38 Ashtech Solutions ...... 2, 7, 30, 31, 37 B battery status ....................................26 begin data collection 47, 53, 66, 74, 80, 89, .............................................. 94, 103 begin data storage .................... 54, 75 boundary survey ...............................
points in loop .................................... 34 poor availability ................................ 38 post-processing ..............................1, 7 power status ...............................54, 75 process longest vector ..............56, 77 R raw data ........... 6, 51, 72, 87, 101, 112 raw data files .................................. 123 raw GPS data ..................................... 2 receiver ID ......................47, 67, 80, 94 assign .......................................
P/N 630860-01C Thales Navigation, Inc. Corporate Headquarters, Santa Clara, U.S.A +1 408 615 5100 • Fax +1 408 615 5200 Toll Free (Sales in USA/Canada) 1 800 922 2401 Email professionalsales@thalesnavigation.com In South America +56 2 234 56 43 • Fax +56 2 234 56 47 In China +86 10 6566 9866 • Fax +86 10 6566 0246 European Headquarters, Carquefou, France +33 2 28 09 38 00 • Fax +33 2 28 09 39 39 Email professionalsalesemea@thalesnavigation.
