ashtech Z-Xtreme Operations & Reference Manual

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Page 1 Z-Xtreme™ GPS Receiver Operations & Reference Manual Magellan Corporation 471 El Camino Real Santa Clara, CA 95050-4300 Phone and Fax Numbers • Main • Voice: 408-615-5100 • Fax: 408-615-5200 • Sales • US: 800-922-2401 • International: 408-615-3970 • Fax: 408-615-5200 •...
Page 2 Printed in the United States of America. Part Number: 630843-01 Revision A November, 2000 Trademarks Z-Xtreme, Instant-RTK, Ζ−Tracking, and the Ashtech logo are trademarks of ® Magellan Corp. Ashtech is a registered trademark of Magellan Corp. All other prod- ucts and brand names are trademarks or registered trademarks of their respective holders.
Page 3: Software License Agreement
SOFTWARE LICENSE AGREEMENT IMPORTANT: BY OPENING THE SEALED DISK PACKAGE CONTAINING THE SOFTWARE MEDIA, YOU ARE AGREEING TO BE BOUND BY THE TERMS AND CONDITIONS OF THE LICENSE AGREEMENT (“AGREE- MENT”). THIS AGREEMENT CONSTITUTES THE COMPLETE AGREEMENT BETWEEN YOU (“LICENSEE”) AND MAGELLAN CORPORATION (“LICENSOR”).
Page 4 Should you have any questions concerning the License Agreement or the Limited Warranties and Limitation of Lia- bility, please contact Magellan Corporation in writing at the following address: 471 El Camino Real, Santa Clara, CA 95050-4300 Z-Xtreme Operations and Reference Manual...
Page 5: Table Of Contents
Option J - RTK Rover .............. 8 Option K - RTK Base ............... 8 Option I - Instant RTK .............. 8 Equipment Description ............9 Z-Xtreme Front Panel ..............9 Rear Panel................11 Pinouts..................13 Power ..................13 Port (Fischer) Connectors ............. 14 PCMCIA Card ................
Page 6 Receiver Initialization ............. 25 PCMCIA Card ................ 25 Monitoring ................25 Monitoring via the Front Panel..........25 Satellite Tracking ..............26 Position................26 Remaining Memory ............27 Remaining Power ............... 27 Monitoring via the Serial Ports..........28 Satellite Monitoring ............28 Position................
Page 7 List of Figures Figure 1.1 Z-Xtreme GPS Receiver ..............1 Figure 2.1 Z-Xtreme Front Panel Closed ............9 Figure 2.2 Z-Xtreme Front Panel Open ............10 Figure 2.3 Z-Xtreme Rear Panel ..............11 Figure 2.4 Power Connector Pin Layout ............13 Figure 2.5 Serial Port Pin Layout ..............
Page 8 viii...
Page 9 Table 2.1 Controls and Indicators .......10 Table 2.2 Z-Xtreme Rear Panel Description ..... . .11 Table 2.3 Power Connector Pinouts.
Page 11: Introduction
Figure 1.1 Z-Xtreme GPS Receiver The Z-Xtreme operates on just 6 watts and includes an internal battery capable of 10 hours of continuous operation. For longer operations, the Z-Xtreme offers an external power input. The receiver also includes internal memory in the form of a removable standard 16Mb PCMCIA card expandable up to 85 Mb.
Page 12: Overview
(CORS) for surveying, GIS, geological, or other scientific monitoring applications. Overview The Z-Xtreme processes signals from the GPS satellite constellation, deriving real- time position, velocity, and time measurements. Twelve dedicated separate and parallel channels extract Coarse/Acquisition (C/A) code-phase, and carrier-phase measurement on the L1 (1575 MHz) band, and Precise (P) code phase and carrier phase measurement on the L1 and L2 (1227 MHz) bands.
Page 13: Memory Options
AS. The accuracy when AS is on is the same as when AS is off. Memory Options The amount of data the Z-Xtreme can retain depends upon the PCMCIA card and the recording interval. You can verify the amount of memory by going to the Memory Status (MEM:***%) menu under the S menu displayed on the front panel.
Page 14: Technical Specifications
Technical Specifications Table 1.1 lists the technical specifications of the Z-Xtreme. Table 1.1Technical Specifications Characteristic Specifications Tracking 12 channels L1 CA/PL1 and PL2 Size 3.“H x 7.75"W x 8.75"D Weight 3.5 lb Operating temperature -20° to +55°C (without internal battery) Storage temperature -30°...
Page 15: Performance Specifications
2.0/baseline (km) Specifications assume operation follows all the procedures recommended in the product manuals utilizing Instant-RTK, post processing with Ashtech Solutions or Ashtech Office Suite for Survey. High-multipath areas, high PDOP values, low satellite visibility, and periods of adverse atmospheric conditions and/or other adverse circumstances will degrade system performance.
Page 16: Option B - Rtcm Base
(SYSINFO) menu on the front panel. You can also verify the installed options by issuing the $PASHQ,RID command to the receiver using an external handheld controller or PC, as described in the Z-Xtreme Technical Reference Manual. The $PASHQ,RID command displays the options on the external handheld controller or PC.
Page 17: Option E - Event Marker
Option E - Event Marker The E option enables the storage of event times created from a trigger signal. The receiver measures and records event times with high accuracy (down to one microsecond). The receiver stores an event time at the rising edge of the trigger signal (or the falling edge on command) and the time is recorded in the receiver’s PC memory card and/or output through the TTT NMEA message.
Page 18: Option J - Rtk Rover
The initialization time using Instant RTK typically requires a single epoch of data if there are 6 or more satellites available with reasonable open sky and low multipath. The baseline length should be 7 km or less. Z-Xtreme Operations and Reference Manual...
Page 19: Equipment Description
This chapter provides a detailed description of the internal features of the Z-Xtreme. Z-Xtreme Front Panel The Z-Xtreme front panel, Figure 2.1 and Figure 2.2, allows you to control basic receiver options as well as perform Static, Rapid Static, and Kinematic surveys.
Page 20: Figure 2.2 Z-Xtreme Front Panel Open
Figure 2.2 Z-Xtreme Front Panel Open Table 2.1 Controls and Indicators Number Component Function LED Display Display and input screen for receiver. Displays messages, parameters, equipment status, and warning messages. The screen displays eight characters at one time, while scrolling messages larger than eight characters from right to left.
Page 21: Rear Panel
Memory card Internal removable memory card. Rear Panel The rear panel of the Z-Xtreme, Figure 2.3, contains all the connectors for connection to external equipment. Table 2.2 describes the rear panel components. Figure 2.3 Z-Xtreme Rear Panel Table 2.2 Z-Xtreme Rear Panel Description...
Page 22 It is short-circuit protected. If using a splitter or other RF network, use an inner DC block suitable for 1-2 GHz, 50 ohms; maximum volt- age back to the Z-Xtreme cannot exceed 15V. Z-Xtreme Operations and Reference Manual...
Page 23: Pinouts
Pinouts Power The voltage input range is 10-28 volts, with a power rating of 10 watts. One 3-pin Fischer connector provides the power input interface. Figure 2.4 shows the pin layout of the power connector. Table 2.3 defines the pinout of the power connector. Figure 2.4 Power Connector Pin Layout Table 2.3 Power Connector Pinouts Signal...
Page 24: Port (Fischer) Connectors
B and C respectively. For port A, do not connect any signals; this pins is for factory use only. CAUTION Do not connect or disconnect power or signal cables from the Z-Xtreme while power is applied. Possible injury and/or equipment damage may occur. Z-Xtreme Operations and Reference Manual...
Page 25: Pcmcia Card
PCMCIA Card The PCMCIA card, Figure 2.6, can be accessed through the front panel door of the Z- Xtreme. Figure 2.6 PCMCIA Card The PCMCIA card is a high-capacity, solid-state, non-volatile flash memory device which complies with PC Card ATA and IDE standards. It provides plug-and-play com- patibility with IDE rotating disk drives.Table 2.5 lists the specifications for the card.
Page 26 When using a new PCMCIA card, make sure to reformat it within the receiver. This optimal formatting can be done through the “DELETE ALL” command under the “SESSIONS” menu of the front panel display, or by sending the $PASHS,CLM command on one of the serial ports. Z-Xtreme Operations and Reference Manual...
Page 27: Battery/Charger
Battery/Charger The Z-Xtreme uses a 10.8Vdc lithium-ion rechargeable battery, similar to the one shown in Figure 2.7. Figure 2.7 Lithium-ion Battery This battery has a push button on the top which indicates percent of power remaining. Table 2.6 lists percentage indicators and their corresponding power remaining.
Page 28: Conditioning
Remove your battery from the receiver, charger, or AC adapter when not in use. Store at room temperature in a dry place. The battery charger is a dual-slot, sequential smart charger for both dumb and smart battery applications. The input voltage is 24 Vdc. The AC/DC adapter delivers 24 Vdc Z-Xtreme Operations and Reference Manual...
Page 29: Charging
for the charger from a power source 100-240 Vac. Figure 2.8 shows an internal battery placed in the battery charger. Figure 2.8 Battery in Battery Charger with AC Adapter Charging Charging of an internal battery takes about four hours. Remove battery from receiver and place battery(s) in charger bay(s), plug charger into AC adapter, and then plug AC adapter into 100-240VAC, 3-prong AC source.
Page 30: Disposition
The status lights on the charger indicate the following: • Blinking Yellow -- Calibrate mode is in progress • Blinking Green -- Calibration completed Disposition Dispose of the internal batteries in accordance with manufacturer’s directions. These batteries are recyclable. Z-Xtreme Operations and Reference Manual...
Page 31: Getting Started
Getting Started This chapter describes receiver operations controllable through the front panel. Memory Card While you may use the Z-Xtreme without a memory card, one is required for internal data storage. Installation Perform the following steps to properly insert the PCMCIA card.
Page 32: Removal
4. Insert the card (side with insertion arrow face down) into the memory slot. 5. Slide the PCMCIA card all the way into the memory slot of the Z-Xtreme. CAUTION All PCMCIA cards are keyed so they only seat into the card connector one way.
Page 33: Installation
Installation 1. Orient the Z-Xtreme so that you are looking at the front panel. 2. Open the memory/battery door (Figure 3.2). Figure 3.2 Installing an Internal Battery 3. Orient the battery so the connector is on the right side while pointing towards the battery bay.
Page 34: Removal
Removal Perform the following steps to remove the battery from the Z-Xtreme. 1. Orient the Z-Xtreme so you are looking at the front panel. 2. Open the memory/battery door on the front of the Z-Xtreme. 3. Push the battery eject button. The battery will unseat from the battery connector.
Page 35: Applying Power
• Using Ports Send this command to execute the initialization: $PASHS,INI,5,5,5,5,1,0 For more information about this command, refer to the Z-Xtreme Technical Reference Manual. PCMCIA Card When using the PCMCIA card, be sure to reformat the card consistently (biweekly for receivers used regularly).
Page 36: Satellite Tracking
SURVEY: MODE STATUS appears on the screen. selected, press ↓ >2 seconds. 4. With STATUS submenu, press ↑< 2 seconds repeatedly until 5. Within the STATUS LAT:N/S**º**’**.*****” LON:E/W**º**’**.*****” ALT:*****.*** scrolls across the screen. Remaining Memory Z-Xtreme Operations and Reference Manual...
Page 37: Remaining Power
The receiver can check the amount of memory remaining on the PCMCIA card. To view the remaining memory, perform the following steps: 1. From the main menu, press ↑ < 2 seconds until is selected. SYSINFO selected, press ↓ >2 seconds. 2.
Page 38: Monitoring Via The Serial Ports
Magellan’s RCS or commercial PROCOMM. Set and query commands can then be sent to the receiver, and the receiver responds with data or status messages. Refer to the Z-Xtreme Technical Reference Manual for more details about serial port communication and for command descriptions and formats.
Page 39 so they will be saved through a power cycle. Perform the following steps to save receiver settings: 1. From the main menu, press ↑ < 2 seconds repeatedly until SETTINGS selected. 2. With selected, press ↓ >2 seconds. SETTINGS 3. Within the submenu, press ↑<...
Page 40 Z-Xtreme Operations and Reference Manual...
Page 41: Operations
Operations LED Display Interface General The LED interface allows you to monitor, query, and control several receiver surveying functions. All functions are organized in a menu tree which is accessed by using the up/down/enter buttons. Table 4.1 describes the basic functions of the up, down, and Enter buttons on the front panel.
Page 42: Menus
Press any key to restore the display to its original state prior to sleep mode. Menus Figure 4.1 depicts the menu tree for the front panel display. Figure 4.1 Display Menu Tree Z-Xtreme Operations and Reference Manual...
Page 43: System Information (Sysinfo)
Table 4.2 describes the five main menus. Table 4.2 Main Menu Description Category Menu Name Description System SYSINFO Information about the receiver Information Survey SURVEY:mode Parameters that may need to be changed several times per parameters and survey type and current status: Coordinate, time, and status satellite information (mode dependent) Survey...
Page 44: Static
Table 4.4 Time Parameters Time Description Time of the receiver’s internal clock. Displayed until receiver locks to first satellite. Time displayed after receiver locks to first satellite. Time displayed after receiver collects UTC corrections from satellite. Z-Xtreme Operations and Reference Manual...
Page 45: Kinematic
KINEMATIC • SITE (SITE:****) Sets the four character SITE name. • Epoch Log counter (LOG #:***) If the epoch counter in the SURVCONF menu has been set to a value other than 0 and the SITE has been entered (which must be done after you have set the antenna on the desired point), the display enters the LOG # screen and the log counter begins decrementing starting from the epoch counter value (at the rate of the recording interval set in the SURVCONF...
Page 46: Survey Configuration (Survconf)
(e.g. the epoch counter in kinematic mode). There are three modes: STATIC KINEMATIC RTK BASE The display shows only the items that are significant for the mode selected. Z-Xtreme Operations and Reference Manual...
Page 47: Static
STATIC • Recording Interval (REC INT:***.*s) Table 4.5 lists the values for which you can set the second and subsecond recording intervals. Table 4.5 Selectable Recording Intervals Subsecond Second* 0.1† N/A‡ 9—999 (default is 20) *Only integer number of seconds are allowed (e.g. 1.5 is rejected). †Only accepted if the fast output option is enabled (F option).
Page 48: Rtk Base
Table 4.6 lists the possible data types. Table 4.6 Selectable Data Types Data Type Description DBEN Ashtech RTK base compact binary format RTCM RTCM type 18/19 and 3/22 are enabled No RTK base data sent on that port • Recording Interval (REC INT:***.*s) Refer to Table 4.5 for information on available recording intervals.
Page 49: Miscellaneous Parameter (Settings)
receiver). This command must be entered if a session was stopped and the PCMCIA card was not removed. • List Sessions Lists all of the data recording sessions on the PCMCIA card in the order of recording up to 100. If the data recording sessions exceed 100, the receiver lists the first 99 as well as the most recent session.
Page 50: Language
At times, the receiver can generate several warnings at once. In this case, the receiver displays the highest priority warning until it is acknowledged. The receiver then displays the remaining warnings in sequence, according to their priority. Z-Xtreme Operations and Reference Manual...
Page 51: Table 4.9 Front Panel Warnings
Table 4.9 describes the possible warnings the receiver may issue. Table 4.9 Front Panel Warnings Warning Definition Action Int. Battery Error : The SMBus controller (for the Remove battery and reinsert it. If SMBus internal battery communication) is problem persists, insert a different not working battery.
Page 52 Not Receiving RTCM Not receiving RTCM code phase Check serial/radio link with the base. Base Data corrections from the base receiver Ensure a valid position was entered in the base. Verify that base is computing a position. Z-Xtreme Operations and Reference Manual...
Page 53 Table 4.9 Front Panel Warnings (continued) Warning Definition Action Bad Base Coordinates The position entered in the base • Base position was entered wrong on receiver for CPD operation is not the rover side. Reenter it. correct (too far from computed •...
Page 54: Data Recording
The receiver can reformat the card using one of two methods: • Via the serial command $PASHS,CLM, which formats all tracks in the card. This includes the FAT area, directory area, and data area. This Z-Xtreme Operations and Reference Manual...
Page 55: Pcmcia File Structure And File Names
process, requiring approximately 5 seconds per MB, is the optimum and recommended method. • Via the serial command $PASHS,FIL,D,999, or via the DELETE ALL option under the SESSION menu from the front panel display, which formats only the FAT and directory areas. The data area is not physically cleared.
Page 56: Data Modes
(e.g. Jan. 1 is day 001; Dec. 31 is day 365). Data Modes The receiver can record data in three different modes, called data modes or data types. Each mode records different combinations of data records and can only be Z-Xtreme Operations and Reference Manual...
Page 57: Downloading Data
changed using the serial port command $PASHS,RNG. Table 4.10 describes these modes. The default is mode 0. Table 4.10 Z-Family Recording Modes Recording Typical Application Records Created File Type After Conversion Mode Raw data, full code and Raw data records B-file carrier phase Ephemeris records...
Page 58: Table 4.11 File Types
Binary S-file Generated from site information data ASCII C-file Generated from position data ASCII M-file Generated from event marker files (photogrammetry) ASCII D-file Generated from site attribute files ASCII ALMyy.ddd Generated from almanac data Binary Z-Xtreme Operations and Reference Manual...
Page 59: Index
Anti-Spoofing .........28 default status ..........1 ......47 ..........48 destination directory ASCII ..........48 D-file ......38 Ashtech format ........8 differential data ..........15 ......47 DOS commands ....44 DOS format command ........47 ......40 download files backed-up memory ....2...
Page 60 ........39 .........2 edit mode kinematic ........47 E-file ..........13 ..........2 ......43 entered position ..........2 ........47 ephemeris ........2 ......3 L-band antenna ephemeris data ........17 ......45 lithium-ion ephemeris records .........2 ........ 35 epoch counter ........38 ......
Page 61 ....45 site information records ........32 ........2 sleep mode rapid static ......11 spread spectrum ........47 raw data ......2 ......45 spread spectrum radio raw data records ........2 stand-alone ......7 raw position data ..........2 ......... 8 static real-time ....7 synchronize receiver data ........
Page 62 Index...

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