RTK surveys. This information does not contain complete explanations for operation and usage. More complete descriptions and additional information can be found in the Z-Max Operation and Applications manual. Module Description & Connection The Z-Max is a modular system that uses intercon- necting components called modules.
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GPS measurements. The GPS receiver module has functionality similar to a personal computer including keypad, display, memory card, serial port, USB port, Bluetooth port and power port. Figure 1 GPS Receiver Module Z-Max Surveying System Pocket Guide...
SD Card Slot / USB Port The SD Card slot and USB port are located behind a small door below the four control keys. Data recorded by the Z-Max is stored on an SD Memory card. Rear Panel The narrow rear panel of the Z-Max Main module, contains serial and external power ports for connection to peripheral equipment.
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Serial Ports The serial ports are used for communication between the Z-Max and external equipment. Serial A: Serial A is a two-way serial port using RS-232 protocol, the protocol used by personal computers Serial B: Serial B is a two-way serial port that can be toggled between RS-232 and RS-422 protocols.
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Communication module is used. The Antenna module fits into the antenna receptacle at the top of either the Main module or the UHF antenna module. Make sure the base of the Antenna module is oriented so that the flattened side is lined up with the flattened area of the receptacle, and the module will push easily into place.
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Power Module The Power module, Figure 3, is the primary internal power source for the Z-Max. To plug in the module, insert the small ledge of the Power module into the rear of the GPS receiver module housing first. This will correctly align the module.
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Communication Module The Communication module, Figure 4, contains the data link(s) for transmitting or receiving data during DGPS and RTK applications. The Communication module can house a variety of wireless communication devices or combinations of devices. Communication devices will vary by application and geographic location.
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The UHF Antenna module, customized for UHF frequency band and in case the receiver is not intended for real-time operation, may be empty. The UHF Antenna module is connected between the GPS Antenna module and the Main Receiver module. Z-Max Surveying System Pocket Guide...
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Figure 5 UHF Antenna Module The UHF Antenna module connects to the Main module just like the GPS Antenna module.
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LEDs The Z-Max Main module has four LED indicator lights located on the front panel (Table 1). The 3-color LEDs allow the user to quickly monitor several receiver functions at a glance. From left to right, the four LEDs are RTK SOLUTION, COMMUNICATION, Data Log, and SV/Power.
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using the power button will also clear the data from the SD card (Table 2).
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(Table 3). In display mode, the keys are used only to scroll within a menu or move to another menu level. In Edit mode, the keys are used either to select a parameter or as a keypad to enter a parameter value. Z-Max Surveying System Pocket Guide...
Table 2 Control Keys in Display Mode Operation UP arrow Scroll menu forward DOWN arrow Scroll menu: backward ENTER Select and move down to next level CANCEL Return to upper level Table 3 Control Keys in Edit Mode Operation UP arrow Parameter list: scroll parameters Keypad: scroll through characters DOWN arrow...
Figure 6 depicts the main menu tree. Detailed menus for configuring the RTK Rover, and the data links (Thales/PDL radios, and GSM base and rover) are shown in Figures 12 through 16 beginning on page Z-Max Surveying System Pocket Guide...
Current position Front panel display (SURVEY:mode/Status) Data recording inter- 1. Data Log LED (interval between blinks) 2. front panel display (SURVCONF/REC INT) Files in memory Front panel display (SESSIONS/LIST SESSION) RTK Solution Status RTK SOLUTION LED Z-Max Surveying System Pocket Guide...
Warning Messages The receiver monitors a number of conditions that are of interest to the user. Whenever a problem is detected in one of these conditions, the LED display is interrupted to show a warning message stating the problem, and a beep will sound every 10 seconds. To acknowledge the message, press any key.
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GSM modem phone number. MODEM No Car- Attempt to call Base Verify that the GSM rier receiver unsuccessful base is operational. MODEM Line Base receiver gives Re-try later. Busy busy signal when called Z-Max Surveying System Pocket Guide...
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Table 5 Common Warning Messages Warning Definition Action MODEM Insert SIM card not detected Insert SIM card into the SIM Card COMM module MODEM SIM SIM Card is not working. Contact GSM Service Card Failure Provider Field Survey Setup This section briefly lists the equipment setup required to perform a static, or RTK survey.
Figure 7 Static Setup Z-Max Surveying System Pocket Guide...
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3. Center and level tripod over point to be surveyed. 4. Attach HI Measurement Plate to tribrach adapter. 5. Securely thread tribrach adapter on to the Z- Max . 6. Place Z-Max onto the tripod. 7. Measure and record instrument height (HI) as shown in Figure 8.
10. Enter the Site ID and Antenna HI in the front panel display Survey:Static submenu and in the observation log. Figure 9 shows the front panel display. Figure 9 Z-Max Front Panel Display...
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3. Securely thread the Z-Max onto the tripod. 4. Mount base radio antenna and connect the base radio. UHF systems can be mounted on the same tripod as the Z-Max or on a different tripod. Cellular communications systems may have an antenna that is a part of the communications module itself.
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13. Measure and record Instrument Height (HI) of GPS Antenna. 14. Power-up Base System. 15. Configure base wireless modem. 16. Configure the Z-Max Base to output RTK corrections. Figure 10 shows the RTK Base configuration with a Thales U-Link radio. Figure 11 shows the RTK Base...