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36

GSR2700 IS Operations Manual

Chapter 4

System Setup

See Figure 13 for an illustration of a typical rover setup.

Figure 13: Typical RTK Rover Setup

For RTK rover setup, complete the following steps:

1.

Mount the GSR2700 IS on the pole.

NOTE

Position the receiver with the GPS antenna up and the 
mounting socket down.

2.

If you are using the internal radio, ensure that the internal 
radio antenna is connected to the receiver’s antenna port

GSR2700 IS Receiver

Internal Radio Antenna

Data Collector

Data Collector Mounting Bracket

Range Pole

Summary of Contents for GSR2700 IS

Page 1: ...GPS Receiver System GSR2700 IS Operations Manual ...

Page 2: ......

Page 3: ...Tplljb GPS Receiver System GSR2700 IS Operations Manual Part Number 750 1 0055 Rev 0D ...

Page 4: ... holders GSR2700 IS FCC and CE Notice This receiver complies with the radiated and conducted emission limits for a Class B digital device for both CISPR 22 and part 15 of the FCC Rules These limits provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance ...

Page 5: ...s equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try and correct the interference by one or more of the following measures a reorient or relocate the receiving antenna b increase the separation between the equipment and the receiver c connect the equipment into an outlet on a circuit d...

Page 6: ...ce 9 Chapter 2 GSR2700 IS Components 10 2 1 Enclosure Features 10 2 2 Ports 12 2 2 1 Antenna port 13 2 2 2 Power port and power input 14 2 2 3 Communication ports 14 2 3 Cables 14 2 4 Batteries 15 2 5 Memory 16 2 6 GPS Antenna 16 2 7 Internal Radio 17 2 8 Wireless Communication 17 2 9 Display Panel 18 2 10 Audible Annunciator 18 Chapter 3 Display Panel Operations 19 3 1 Power Button 20 3 2 Status ...

Page 7: ...Up for Field Operations 35 4 2 1 Typical RTK rover setup 35 4 2 2 Typical RTK base setup 37 4 2 3 Typical static setup 40 Chapter 5 Basic Operations 42 5 1 Turning the System On and Off 42 5 2 Power Source 42 5 2 1 Internal batteries 42 5 2 2 External power source 43 5 3 Powering Peripheral Devices 44 5 4 Power Consumption 44 5 5 Insufficient Power 45 5 6 Charging the Internal Batteries 46 5 7 Ope...

Page 8: ...ed 49 6 3 1 About the POWERUP configuration 49 6 3 2 Default POWERUP configuration 50 6 3 3 Transferring a POWERUP configuration 52 6 4 Data File Naming 53 6 5 Data Storage Capacity 54 6 6 Resetting the Receiver 54 Appendix A Technical Specifications 55 Glossary 61 Index 69 ...

Page 9: ...munication Status LEDs 25 8 Internal Radio Status LEDs 26 9 Battery Life Gauge Indicators 28 10 Satellite Tracking Gauge Indicators 29 11 Memory Gauge Indicators 29 12 Occupation Timer Gauge Indicators 30 13 Audible Annunciator Conditions 32 14 POWERUP Configurations 51 15 Auto Generated File Name Convention 53 16 Hours of Storage with 64 MB Logging Capacity 54 17 GSR2700 IS Technical Specificatio...

Page 10: ... 5 Ports 11 6 Mounting Socket and Phase Center Offset Label 11 7 Wireless Communication Antenna 12 8 Ports and Labels 12 9 Internal Radio Antenna 13 10 GPS Antenna 16 11 Display Panel Components 19 12 Power Button Functions 21 13 Typical RTK Rover Setup 36 14 Typical RTK Base Setup internal radio 38 15 Typical RTK Base Setup external radio 38 16 Typical Static Setup 40 Figures ...

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Page 12: ...s communication connection provides a completely cable free option The GSR2700 IS offers differential correction transmission flexibility using either an internal UHF or GSM radio It also offers the innovative feature of voice messages to indicate receiver status during field operation Surveyors can use the GSR2700 IS for topographic stake out and control surveys Excellent acquisition and reacquis...

Page 13: ...tented Pulse Aperture Correlator PAC technology for high accuracy GPS measurement and multipath rejection Two bidirectional communication ports that can transfer data at rates up to 460 800 bps serial via COM1 115 200 bps serial via COM2 and 1 Mbps USB via COM2 Full wavelength L1 and L2 GPS carrier measurements Ionospheric corrections in position calculations 2 Input Output strobe signals mark inp...

Page 14: ... page 5 NOTE System components are illustrated with the assumption that an internal radio is being used Output Data Log Formats Proprietary ASCII and binary CMR Standard CMR CMR NMEA Standard GPGGA GPGLL GPGRS GPGSA GPGST GPGSV GPRMB GPRMC GPVTG GPZDA RTCM V2 3 Standard Types 1 2 3 9 16 18 19 20 21 22 59FKP 59N RTCM V3 0 Standard Types 1001 1006 RTCA Standard Types 1 7 NTRIP protocol support for R...

Page 15: ... Chapter 1 Introduction Figure 1 Standard System Components RTK Rover GPS Receiver AC Adapter PC Download Cable USB Tape Measure Quick Release Internal Radio Antenna Hard Case Manual GPS Receiver System GSR2700 IS Operations Manual ...

Page 16: ... wish to use with your system Figure 3 Optional Components GPS Receiver AC Adapter PC Download Cable USB Tape Measure Quick Release Tribrach Tribrach Adaptor Internal Radio Antenna Hard Case Manual GPS Receiver System GSR2700 IS Operations Manual PC Download Cable Serial External Battery External Battery Cable Data Collector Data Collector Mounting Bracket ...

Page 17: ...t Use anti static precautions where possible This device is a precision instrument Although it is designed for rugged operating conditions it performs best when handled with care When the port covers are closed the enclosure is sealed to provide protection against adverse environmental conditions To minimize the possibility of damage always keep the ports covered except when in use The GSR2700 IS ...

Page 18: ...mory Identifies the gauge that displays the available storage space in the internal memory Occupation timer Identifies the gauge that displays the static occupation timer Bluetooth communication status Identifies the Bluetooth communication status indicators Internal radio status Identifies the internal radio status indicators COM status Identifies the COM port status indicators Ports PWR Identifi...

Page 19: ...documents provide supporting documentation Planning Reference Manual Describes how to use Planning software to help determine satellite availability as well as information about setting the POWERUP configuration for the GSR2700 IS Spectrum Survey Reference Manual Provides information about processing and adjusting your data using Spectrum Survey SDR User s Guide Describes how to use the SDR data c...

Page 20: ...e you purchased this product When you contact technical support please make sure you have the following information Your receiver information including serial number part number model firmware version and internal radio information A concise description of the problem For a list of SOKKIA worldwide offices see the list at the back of this manual ...

Page 21: ...single unit makes the use of a backpack unnecessary 2 1 Enclosure Features The top of the GSR2700 IS is comprised of the GPS antenna and radome surrounded by a shock absorbing protective bumper On the side of the receiver is the display panel which enables you turn on and monitor the system Brightly colored LEDs display the status of your system See Figure 4 For details about the display panel see...

Page 22: ...standard quick release fitting for mounting the unit on a tripod or survey pole The mounting socket accepts a threaded stud up to 0 75 19 mm in length Also on the underside of the enclosure is a phase center offset label See Figure 6 for a view of the mounting socket and phase center offset label Figure 6 Mounting Socket and Phase Center Offset Label The internal antenna for the Bluetooth wireless...

Page 23: ...ation ports and an antenna connector port for the internal radio All ports are located on the underside of the enclosure and are protected from dust and water by covers NOTE Leave the port covers closed unless a port is in use Each port is labeled with an icon and text for easy identification See Figure 8 for an illustration of the ports and labels See Table 3 Port Summary page 13 for a descriptio...

Page 24: ...ver with radio antenna attached For more information about the internal radio see Section 2 7 Internal Radio page 17 Figure 9 Internal Radio Antenna Table 3 Port Summary Number Description 1 Antenna port internal radio 2 COM1 port handheld communication 3 COM2 port radio and USB communication 4 Power port CAUTION Attach only the Sokkia antenna UHF or GSM as applicable to the antenna port Do not at...

Page 25: ...ypically intended for use with a radio You can also connect your PC s USB port to the COM2 port for high speed data transfer from internal memory The GSR2700 IS can provide power output through the COM1 and COM2 ports for powering accessories The output voltage from the COM port is approximately the same as the input to the unit For more information about powering peripheral devices see Section 5 ...

Page 26: ...The GSR2700 IS can also be powered using an external power source See Section 5 2 Power Source page 42 for more information about power input The internal batteries will power the unit continuously for about 10 hours as part of an RTK rover setup using a UHF internal radio When operating without a radio the receiver can be operated for about 14 hours on the internal batteries The internal batterie...

Page 27: ...S Antenna The GSR2700 IS features an integrated GPS antenna L1 L2 with Pinwheel technology This patented antenna provides exceptional multipath rejection and performance equivalent to a typical choke ring antenna Figure 10 GPS Antenna There is one tape measure anchor point on the circumference of the receiver from which the antenna height can be measured This height measurement location enables th...

Page 28: ...rd supplied by your telecommunications service provider See Radio Link page 58 for details about the UHF and GSM GPRS internal radios 2 8 Wireless Communication The GSR2700 IS features a built in Class 2 Bluetooth wireless communication device which enables a wireless connection from a Bluetooth enabled data collector or a PC CAUTION Always ensure that the radio antenna is properly connected to yo...

Page 29: ...iew of your system status See Chapter 3 Display Panel Operations page 19 for details about display panel features and how to use them 2 10 Audible Annunciator The GSR2700 IS features an audible annunciator which issues a series of voice messages or sounds to alert you of the receiver s current status during operation For details about the audible annunciator see Section 3 4 Audible Annunciator pag...

Page 30: ...d event conditions Figure 11 illustrates the display panel components and Table 4 describes each component Figure 11 Display Panel Components Table 4 Display Panel Components Component Description Reference 1 Power button Section 3 1 Power Button page 20 2 Receiver health indicator Section 3 2 1 Receiver health page 23 3 COM port communication status indicators Section 3 2 2 COM port communication...

Page 31: ...the process See Section 3 4 Audible Annunciator page 31 for more information about voice messages and sounds NOTE Ensure that you hold the power button firmly for the entire duration that is required to perform the desired action 5 Internal radio status indicator Section 3 2 4 Internal radio status page 26 6 Battery life gauge Section 3 3 1 Battery life gauge page 27 7 Satellite tracking gauge Sec...

Page 32: ...tors will turn off for a short period of time and the Receiver Ready message or sound will be issued to indicate that the system is operational Note The receiver health indicator LEDs might illuminate during startup this is normal Turn off 3 Hold the button for 3 seconds until the Power Off message or sound is issued and the top three battery life gauge indicators illuminate Release the button to ...

Page 33: ... 20 With the receiver turned on hold the button for 20 seconds until the Delete Files message or sound is issued and the top three LEDs on the memory gauge illuminate Release the button to delete all the files from the memory Note This action is not reversible If you are unsure about whether you want to delete all the files hold the button longer than 25 seconds so that the receiver simply returns...

Page 34: ...if red it is an error condition The particular combination of red and yellow flashes indicates a specific warning or error condition for example the receiver is being operated outside its temperature range If an error condition persists take the following steps 1 Turn the receiver off for a few minutes 2 Perform a factory reset see Table 5 Power Button Functions page 21 3 If the error condition st...

Page 35: ...ed NOTE During typical RTK operation when a data collector is connected to COM1 both red and green LEDs illuminate frequently When an external UHF radio is connected to COM2 the red LED illuminates when operating the receiver as a rover and the green LED illuminates when operating it as a base For details about the COM ports See Section 2 2 3 Communication ports page 14 Table 6 COM Port Communicat...

Page 36: ...data collector is connected to the internal Bluetooth port both red and green LEDs illuminate frequently For details about the wireless communication device see Section 2 8 Wireless Communication page 17 Table 7 Wireless Communication Status LEDs LED State Status Description Blue Blinking A connection with another device has not yet been established Solid A Bluetooth connection has been establishe...

Page 37: ...ated NOTE When the internal radio is being used the red LED illuminates when operating the receiver as a rover and the green LED illuminates when operating it as a base For details about the internal radio see Section 2 7 Internal Radio page 17 Table 8 Internal Radio Status LEDs LED State Status Description Yellow Illuminated Power is being provided to the internal radio device Dark The internal r...

Page 38: ...tion 3 3 4 Occupation timer gauge page 30 Each gauge contains a series of five LEDs that illuminate to alert you of the system s status NOTE During typical operation only one LED is illuminated on each gauge at any one time 3 3 1 Battery life gauge The battery life gauge displays the battery life remaining on the internal batteries When an external power source is connected the detected available ...

Page 39: ...lites currently being tracked by the receiver If the current position of the receiver is being held fixed consistent with RTK base operation the currently illuminated LED will blink For a satellite to be counted as used it must have a healthy signal and be above the elevation mask and the receiver must have achieved lock both code and carrier Table 9 Battery Life Gauge Indicators LED Internal Batt...

Page 40: ...lites which are insufficient for three dimensional positioning applications 3 3 3 Memory gauge The memory gauge displays the amount of available memory When data is being logged to a file the currently illuminated LED blinks Table 11 summarizes the values indicated by each LED Table 10 Satellite Tracking Gauge Indicators LED Number of Satellites Being Tracked Top 10 11 or 12 4 8 or 9 3 6 or 7 2 4 ...

Page 41: ...ine If an LED is illuminated it indicates that you have now collected sufficient raw GPS data to successfully post process a baseline of the indicated baseline length When insufficient data has been collected to theoretically process a baseline of 5 kilometers none of the LED indicators will be illuminated NOTE For successful post processing it is assumed that there are no adverse environmental co...

Page 42: ...e messages or sounds to alert you to the system status and event conditions NOTE Your receiver is preconfigured with either voice messages or sounds at a preset volume If you wish to make any changes to the voice messages or sounds or the volume levels contact your local Sokkia distributor You can also choose to have no messages or sounds The frequency of the voice message or sound depends on the ...

Page 43: ... when the batteries are sufficiently discharged once Factory Reset The power button has been held down long enough to initiate a factory reset of the receiver once Delete Files The power button has been held down long enough to initiate erasing of all of the files in memory once Continue Operation The power button has been held down too long for any action to take place Release the power button to...

Page 44: ...gging on the receiver but the memory is full and new data can no longer be stored continuous RTK Fixed A fixed integer RTK solution has been achieved once Fix Lost A fixed integer RTK solution has been lost once Table 13 Audible Annunciator Conditions continued Status Event Condition Description Frequency ...

Page 45: ...a from the receiver to a PC The GSR2700 IS supports transfer of data from the receiver s memory to a PC in the following ways Via a USB connection to the receiver s COM2 port Using a Bluetooth connection Using a serial connection to the receiver s COM1 port To set up the GSR2700 IS in the office complete the following steps 1 Place the GSR2700 IS on a desk or other suitable work surface 2 Use the ...

Page 46: ...for Field Operations The GSR2700 IS can be used for static or kinematic surveys as well as for real time kinematic RTK surveys as a base or rover This section provides an overview of the equipment and setup for typical uses of the system 4 2 1 Typical RTK rover setup A typical rover RTK setup consists of a range pole GSR2700 IS receiver with internal GSM or UHF radio and data controller If you use...

Page 47: ...p complete the following steps 1 Mount the GSR2700 IS on the pole NOTE Position the receiver with the GPS antenna up and the mounting socket down 2 If you are using the internal radio ensure that the internal radio antenna is connected to the receiver s antenna port GSR2700 IS Receiver Internal Radio Antenna Data Collector Data Collector Mounting Bracket Range Pole ...

Page 48: ...rnal UHF or GSM GPRS radio The setup might also include a data collector for in field configuration of the receiver Typical base setups include using one of the following to transmit corrections Internal UHF radio Internal GSM GPRS radio used in one to one mode for example one GSR2700 IS receiver to another External radio device for example a cell phone or high power radio CAUTION Always ensure th...

Page 49: ...rations of two typical base setups Figure 14 Typical RTK Base Setup internal radio Figure 15 Typical RTK Base Setup external radio GSR2700 IS Receiver Internal Radio Antenna Tribrach Adapter Tribrach Tripod GSR2700 IS Receiver External Radio Cable External Radio Tribrach Adapter Tribrach Tripod ...

Page 50: ...tenna is connected to the radio device Connect power to the radio device Use a radio communications cable to connect the device to the receiver s COM2 white port see Chapter 2 GSR2700 IS Components page 10 5 Turn on the receiver see Chapter 5 Basic Operations page 42 6 Optional Use a Bluetooth connection or serial communication via the receiver s COM1 blue port to connect a data collector to the r...

Page 51: ...itted green LED NOTE If you are using SDR software and have a valid RTK capable POWERUP configuration loaded on your receiver you do not need to connect GSR2700 IS to a data collector to use the receiver as a base See the SDR User s Guide for more information 4 2 3 Typical static setup For static surveys the GSR2700 IS is mounted on a tripod The system is operated using the power button and is pow...

Page 52: ... the receiver with the GPS antenna up and the mounting socket down 3 Turn on the receiver see Chapter 5 Basic Operations page 42 4 Check the memory gauge to verify that the receiver is logging data see Section 3 3 3 Memory gauge page 29 for more information 5 Optional If you wish to see the current position and satellite tracking status you can connect a data collector to the receiver using a Blue...

Page 53: ...NOTE If you press the power button to turn off the GSR27000 IS while it is logging data to the memory it will save and close any open files before turning off For information about power consumption while the receiver is off see Section 5 4 Power Consumption page 44 NOTE The GSR2700 IS does not turn on in response to COM port activity 5 2 Power Source You may decide to power the GSR2700 IS using i...

Page 54: ...voltage See Appendix A Technical Specifications page 55 for detailed information about the GSR2700 IS operating voltage When an external power source is present the GSR2700 IS uses it before drawing on the internal batteries provided that the power from the external source is greater than that of the internal batteries If the voltage delivered from the external power source is less than the intern...

Page 55: ...n of the system will resume NOTE If a peripheral device for example a high powered radio was the cause of the current drain it will probably not function after the system resumes normal operation If you use the Sokkia recommended data collector and radio you will not overload your system This possibility only exists if you attach peripherals that have not been approved for use with the GSR2700 IS ...

Page 56: ...en if the power button is pressed To return to normal operation charge the internal batteries or connect a valid external power input to the receiver When sufficient power is restored the COM ports will provide power according to what the POWERUP configuration specifies and the system will turn on if the power button is pressed If there is no POWERUP configuration the COM ports will provide power ...

Page 57: ...ibutor Do not attempt to service the batteries yourself doing so will void the product warranty 5 7 Operation Overview The following is a list of general operations when using the GSR2700 IS receiver 1 Apply power to the GSR2700 IS that is ensure its internal batteries are charged or connect it to an external power supply Once the GSR2700 IS is connected to an appropriate power supply it is ready ...

Page 58: ...e Section 6 3 1 About the POWERUP configuration page 49 3 Connect a data collector to the receiver if you plan to use it to configure the receiver or control the survey A data collector is not always necessary for example you are using the receiver as an RTK base or in a static survey ...

Page 59: ...tment using Sokkia s Spectrum Survey Suite software For information about how data files are named see Section 6 4 Data File Naming page 53 6 2 Data Collection Methods The GSR2700 IS collects data with a handheld data controller or by logging to the internal memory 6 2 1 Handheld data collection You can use the GSR2700 IS receiver with a handheld data controller loaded with the SDR software to con...

Page 60: ...ee Section 3 1 Power Button page 20 Once the GSR2700 IS has acquired GPS satellites it will automatically start collecting data based on the POWERUP definitions see Section 6 3 1 About the POWERUP configuration page 49 NOTE For information about downloading data from internal memory see Section 4 1 Setting Up at the Office page 34 6 3 Defining Data to be Collected You can define what type of infor...

Page 61: ...s communication power settings 6 3 2 Default POWERUP configuration The GSR2700 IS initially operates on a default POWERUP configuration which is always present on the receiver unless you remove it using the Planning software There are several default POWERUP configurations available for the GSR2700 IS Your receiver is preset with one of five possible POWERUP configurations Table 14 POWERUP Configu...

Page 62: ... epoch 3 3 3 3 3 Elevation mask degrees 5 5 5 5 5 RTK Base Operation Generate RTK corrections No Yes Yes Yes Yes Average position and fix time secs n a 180 180 60 180 Differential correction format n a RTCM 18 19 RTCA RTCA RTCA Default base ID n a 0 AAAA AAAA AAAA Correction transmit interval secs n a 1 1 1 1 Base position transmit interval secs n a 10 10 10 10 Corrections to internal radio if pre...

Page 63: ...OTE When you transfer a POWERUP configuration to the GSR2700 IS using Planning it replaces the existing configuration on the receiver Only one POWERUP configuration can reside on the receiver at one time When you reset the receiver back to factory defaults any POWERUP configuration you have transferred to the receiver is discarded and the POWERUP configuration reverts to the factory default settin...

Page 64: ...ted that day session ID E the file name would be 0087025E PDC In the unlikely event of a conflict between an auto generated file name and an existing file the GSR2700 IS resolves the conflict by creating a file name whose first character is a tilde followed by a 7 digit random number and a PDC extension for example 9368412 PDC Table 15 Auto Generated File Name Convention Part of Name Description L...

Page 65: ...n 3 1 Power Button page 20 restores the default factory POWERUP configuration The receiver audibly indicates that a reset has occurred For more information see Section 3 4 Audible Annunciator page 31 NOTE Data files on the receiver are not affected by a reset Table 16 Hours of Storage with 64 MB Logging Capacity Epoch Rate Average of Satellites 6 7 8 9 10 11 12 1 57 50 44 40 36 33 30 5 270 240 210...

Page 66: ...t internal radio 1 6 kg 3 5 lbs With internal radio 1 8 kg 3 9 lbs Enclosure Description The enclosure is constructed of magnesium alloy main body and plastic radome closed with mounting screws and encircled by a rubber bumper Environmental Operating Temperature 20 C to 65 C 4 F to 149 F Storage Temperature 40 C to 85 C 40 F to 185 F Humidity 100 condensing Ruggedness IP67 Complete protection agai...

Page 67: ...tion 5 15 1 nominal template Frequency 10 Hz 10 Hz 40 Hz 1000 Hz 2000 Hz 2000 Hz Magnitude g2 Hz 80 dB decade 0 00125 0 02 0 02 0 005 80 dB decade Power Requirements Power Input External 9 VDC to 18 VDC Internal 10 8 VDC Consumption 5 W using internal radio Port 1 x external power port Peripheral Power Output COM1 and COM2 Voltage supplied voltage Current 1 A Power Management Once the internal bat...

Page 68: ...ords per second maximum Position Accuracy Statice 3 0 mm 0 5 ppm horizontal 10 0 mm 1 ppm vertical Rapid Statice 5 0 mm 1 ppm horizontal 10 0 mm 1 ppm vertical Kinematic Stop and Goe 10 0 mm 1 ppm horizontal 20 0 mm 1 ppm vertical RTKf 10 0 mm 1 ppm horizontal 20 0 mm 1 ppm vertical Differential DGPS WAAS EGNOS 0 8 m CEP Latency 0 02 sec typical Stand Alone Position 1 5 m CEP 4 9 ft Time Accuracy ...

Page 69: ... to 18 VDC 65 W Radio Link UHF compatible with SATEL Satelline 3AS 380 to 470 MHz Transmit and Receive Tx Rx 12 5 kHz channel spacing Power consumption typical at 1 second transmits and in receive mode information not yet available RF impedance 50 ohms RF connector type TNC female GSM GPRS Nokia 12 GSM Frequencies 850 1800 MHz or 900 1900 MHz band Power consumption typical information not yet avai...

Page 70: ...TL levels Current 5 mA Classifications FCC and CE Complies with the radiated and conducted emission limits for a Class B digital device for both CISPR and Part 15 of the FCC Rules For full details see GSR2700 IS FCC and CE Notice page ii a Shock specifications based on receiver without cables attached b Typical value No almanac or ephemeris and no approximate position or time c Typical value Alman...

Page 71: ...erations Manual h Based on unobstructed observing conditions 7 satellites and a baseline length of less than 5 0 km i See your local Sokkia distributor for more information j See your local Sokkia distributor for more information ...

Page 72: ...s a known position and transmits messages for the rover receiver which uses the information to calculate its position Sometimes referred to as a reference station Bluetooth Wireless personal area network PAN standard that enables data connections between electronic devices such as desktop computers wireless phones electronic organizers and printers in the 2 4 GHz range at 240 Kbps within a 30 foot...

Page 73: ...ry is the DOP factor E Elevation mask angle An adjustable feature in GPS receivers that specifies a satellite must be at least a specified number of degrees above the horizon before the receiver uses the signals from that satellite Satellites at low elevation angles five degrees or less have lower signal strengths and are prone to loss of lock and multipath Ellipsoid A smooth mathematical surface ...

Page 74: ...00 MHz and 1900 MHz GSM uses narrowband TDMA which allows eight simultaneous calls on the same radio frequency General Packet Radio Service GPRS Technology that allows mobile phones to be used for sending and receiving data over an Internet Protocol IP based network GPS Time The time system upon which GPS is based GPS time is an atomic time system and is related to International Atomic Time in the...

Page 75: ...ins the course acquisition C A code as well as encrypted P code and navigation messages used by commercial GPS receivers L2 A secondary GPS carrier at 1227 60 MHz that contains only the encrypted P code L Band The range of radio frequencies that includes the GPS L1 and L2 carrier frequencies and the OmniSTAR satellite signals M Mask angle See Elevation mask angle Multipath The reception of a satel...

Page 76: ...t and multiplying it by the speed of light R RMS See Root Mean Square RMS Radio Technical Commission for Maritime Services RTCM Radio Technical Commission for Maritime Services An organization that developed and defined the SC 104 message format for differential positioning Raw data GPS data which has not been processed or differentially corrected Real time Kinematic RTK A type of differential pos...

Page 77: ...pecification varies with the operating state of the receiver the length of time since the last position fix the location of the last fix and the specific receiver design U Universal Serial Bus USB An external peripheral interface standard for communication that supports data transfer rates up to 480 Mbps Universal Time Coordinated UTC The time as maintained by the U S Naval Observatory Due to vari...

Page 78: ... Geodetic System 1984 is an coordinate system designed to fit the shape of the Earth as much as possible It is often used as a reference on a worldwide basis while other coordinate systems are used locally to provide a better fit to the Earth in a local region ...

Page 79: ......

Page 80: ...14 24 communication ports 14 24 25 status indicators 24 25 wireless See wireless communi cation components 3 5 10 18 configurations See POWERUP con figuration consumption power 44 corrections ionospheric 2 covers for ports 12 current maximum 6 customer support 9 D data collecting 48 54 defining for collection 49 52 file naming 53 loss of 45 storage 48 54 transferring 34 35 See also files default P...

Page 81: ...terruptions 42 memory capacity 54 rates 3 to internal memory 49 M maximum current 6 memory internal about 16 erasing 22 full or low conditions 32 33 gauge 29 logging to 49 modes of operation 2 mounting socket 11 N naming conventions files 53 O occupation timer gauge 30 office setup 34 35 operation display panel 19 33 modes 2 overview 46 optional components 5 output power 14 44 overview 1 P periphe...

Page 82: ... rover 35 37 static base 40 shutdown 21 SIM card 17 socket mounting 11 sounds See audible annunciator specifications 55 60 startup sequence 21 static setup 40 status indicators 22 storage of data 48 54 support technical 9 system components 3 5 10 18 system setup See setup T tape measure anchor point 16 technical specifications 55 60 technical support 9 transferring data 34 35 transferring POWERUP ...

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Page 84: ... CE declaration document not yet available ...

Page 85: ......

Page 86: ...athe Kansas U S A Ph 1 800 764 6848 1 913 928 2787 Fax 1 913 492 8233 E mail product orders point inc com SOKKIA Latin America Miami Florida U S A Ph 1 305 599 4701 Fax 1 305 599 4703 E mail sales info sokkiala com Web www sokkialatinamerica com SOKKIA Co Ltd Shanghai Representative Office Shanghai People s Republic of China Ph 86 21 63541844 Fax 86 21 63172083 E mail sokkia1 online sh cn Web www ...

Page 87: ...U S A Olathe Kansas U S A Ph 1 800 4 SOKKIA 1 913 492 4900 Fax 1 913 492 0188 E mail customerservice sokkiacorp com Web www sokkia com SOKKIA Corporation Canada Mississauga Ontario Canada Ph 1 905 238 5810 Fax 1 905 238 9383 E mail support sokkiacorp com Web www sokkiacanada com SOKKIA Korea Co Ltd Seoul Republic of Korea Ph 82 2 514 0491 Fax 82 2 514 0495 E mail sokkia sokkia co kr Web www sokkia...

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