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User Manual for David30 GNSS Receiver v2.0

3. Input the valid position range, check PosAve On, and click [Modify]. It is

recommended that valid position range is >20m.

4. After the specific time (in the example, 0.01 hour is 36 seconds), the base

is fixed within 36 seconds averaging position.

5. Click [Refresh], the fixed position is displayed as below.

Figure 6.20 Fixed position for base station

6. After a power cycle, if the base is moved less than 20m away from the last

position, it would fix with the same position. In the above example, latitude
keeps 31.19042830, longitude keeps 121.59319162 and ellipsoid height
keeps 37.4168.

Содержание David30

Страница 1: ...es tersus gnss com Technical Support support tersus gnss com More details please visit www tersus gnss com User Manual For David30 GNSS Receiver 2021 Tersus GNSS Inc All rights reserved User Manual Version V2 0 20210721 ...

Страница 2: ...avid30 GNSS Receiver v2 0 1 Revision History Version Revision Date Change summary 1 0 20210427 Initial Release 2 0 20210721 Add CE FCC marks and section7 upgrade the information of 2W radio RS460H and 28w radio RS400H3 ...

Страница 3: ...S Receiver 18 2 1 2 AX4E02 GNSS Antenna 19 2 1 3 DC 5pin power cable 20 2 1 4 COMM1 Bluetooth Module 21 2 1 5 COMM2 7pin to USB DB9 Cable 21 2 1 6 DB9 Male to USB Type A Male converter cable 22 2 1 7 USB Type A Female to USB Micro Type C OTG cable 23 2 1 8 Height Measure Accessory 23 2 1 9 Other accessories 23 2 2 Rover Kit with 2W Radio Station 26 2 2 1 2W Radio RS460H 27 2 2 2 410 470MHz Radio W...

Страница 4: ...35 2 4 6 Hook and Screws for 2W Radio 36 2 4 7 Hook and Screws for David30 36 2 4 8 Bracket for Mobile 36 2 4 9 Other accessories 37 2 5 Base Kit with 28W Radio RS400H3 37 2 5 1 28W Radio RS400H3 38 2 5 2 28W Radio power cable 39 3 General operation 40 3 1 Install the GNSS antenna 40 3 2 Power on David30 41 3 3 Communication between Android device and David30 42 3 4 Firmware Update 44 3 4 1 Hardwa...

Страница 5: ...vid30 77 6 4 Data Collection for Post Processing 81 6 5 Auto Base Station List Function 85 6 6 2W Radio operation 87 6 6 1 Radio Function Description 87 6 6 2 Radio Installation 88 6 6 3 Antenna Installation 89 6 7 28W Radio operation 90 6 7 1 Radio basic operation 90 6 7 2 Radio Installation 96 6 7 3 Antenna Installation 97 7 Lightning Proof Design 98 7 1 Direct lightning protection 98 7 2 Induct...

Страница 6: ... Rover 24 Figure 2 8 Magic Tape 24 Figure 2 9 Ranging Pole 24 Figure 2 10 Carrying Case for Rover 25 Figure 3 3 Outline of Android device to David30 with Bluetooth 42 Figure 3 4 Connect using Bluetooth 43 Figure 3 5 Search Bluetooth device 43 Figure 3 6 Outline of David30 connected to a Computer 44 Figure 3 7 COM port is recognized by the computer in the Computer Management 45 Figure 3 8 Update Dr...

Страница 7: ...vice to David30 with Wire Rover 68 Figure 6 2 Connect David30 via USB 69 Figure 6 3 Rover setting interface 70 Figure 6 4 Edit Rover configuration 70 Figure 6 5 Rover is receiving RTK corrections 71 Figure 6 6 Outline of Android device to David30 with Wire Base 72 Figure 6 7 Connect David30 via USB 74 Figure 6 8 Base setting interface 74 Figure 6 9 Edit Base configuration 74 Figure 6 10 Base is tr...

Страница 8: ...o Base Station List interface 85 Figure 6 20 Fixed position for base station 86 Figure 6 21 Front Panel of the 2W Radio 87 Figure 6 22 Transmit power 94 Figure 6 23 Serial baud rate self adaption 95 Figure 7 1 Schematic diagram of direct lightning prevention 98 ...

Страница 9: ...ition 27 Table 7 Base Kit with 2W Radio Station 32 Table 8 Definition of LED indicators 11 Table 9 David30 GNSS Performance 60 Table 10 Pin Definition of connectors on David30 62 Table 11 Antenna AX4E02 11 Table 12 Specifications of 2W Radio RS460H 64 Table 13 Default factory configuration for RS460H 66 Table 14 Specifications of 28W Radio RS400H3 67 Table 15 Default factory configuration for RS40...

Страница 10: ...refore the equipment is labeled with the following CE marking The Declaration of Conformity may be obtained from Tersus GNSS Inc FCC Notices The David30 GNSS Receiver has been tested and found to comply with the radiated and conducted emission limits under FCC Rules and Regulations Part 15B for a Class A digital device The Class A limits are designed to provide reasonable protection against harmfu...

Страница 11: ...perature rise and overheat of the radio module Conventions The following conventions are used in this manual Information that supplements or clarifies text A caution that actions operations or configurations may lead to incorrect or improper use of the hardware A warning that actions operations or configurations may result in regulatory noncompliance safety issues or equipment damage NUWA is Tersu...

Страница 12: ...usGNSSCenter TersusUpdate TersusRinexConverter https www tersus gnss com software D avid30 receiver Nuwa Survey application running in the Android platform David30 can be configured with Nuwa https www tersus gnss com software D avid30 receiver Tersus Geomatics Office Post processing tool for static data https www tersus gnss com software D avid30 receiver Support If there is any problem and the i...

Страница 13: ...uetooth module The David30 receiver can work as a base or a rover it supports real time RTK positioning as well as saving data for PPK application Up to 8GB on board eMMC makes it easy to save data for PPK application The RS 232 serial port IP67 standard and the external Bluetooth module can remove most of the inconvenience for field workers All the operations can be done in the Nuwa app except do...

Страница 14: ...ase can be 1mm On board 8GB eMMC for data collection Static post processing for mm level accuracy Bluetooth module makes wireless connection Input power range is 5 28V DC IP67 for water dust proof work reliably in harsh condition 1 3 Brief Introduction of GNSS and RTK Tersus BX40C GNSS board is integrated in David30 the board is receiving the GNSS signals from satellites and RTK corrections from t...

Страница 15: ...utline of David30 System The RTK corrections are transmitted from a base which can be a CORS station or a David30 receiver The RTK corrections can be transmitted to the rover via Internet or with external radios Figure 1 3 Corrections transmitted via Internet ...

Страница 16: ...1 4 Corrections transmitted with radios If RTK corrections are transmitted via Internet an Android device or controller will be included in the RTK system to transmit receive the RTK corrections refer to section 6 1 and section 6 2 for detailed operations ...

Страница 17: ...id30 variants Description Rover Kit Network Mode The David30 receiver will receive RTK corrections from a NTRIP caster or a TCP server Rover Kit with 2W Radio Station The David30 receiver will receive RTK corrections from an external 2W radio Base Kit Network Mode The David30 receiver will output RTK corrections to a NTRIP caster or a TCP server Base Kit with 2W Radio Station The David30 receiver ...

Страница 18: ... controller Table 3 Devices in Rover Network Mode Device Name Quantity Remarks AX4E02 GNSS antenna 1 Details refer to section2 1 2 Ranging pole 1 Details refer to section2 1 9 COMM1 Bluetooth module 1 Details refer to section 2 1 4 DC 5pin to USB power cable 1 Details refer to Figure 2 1 3 David30 GNSS receiver 1 Details refer to section 2 1 1 Bracket for rover 1 Details refer to section 2 1 9 GNS...

Страница 19: ...ification of David30 Table 4 Definition of LEDs LED Colour Description RTK Red ON David30 in Fixed solution Blink David30 in Float and DGPS solution OFF David30 in other position types SV Red ON Normal state Blink David30 is searching satellites PWR Blue ON the David30 is power on Refer to section 3 2 Power on David30 for more details about the booting up procedure Refer to Chapter 5 for the speci...

Страница 20: ...sed contact Tersus to obtain permission or the David30 receiver may not work as expected Figure 2 4 TNC J to TNC J cable 1 0m GNSS Antenna cable Note The TNC J end of this cable can be only used for AX4E02 GNSS Antenna and David30 DO NOT connect the TNC J end of the above cable to the RS460H radio 28W Radio or other devices The GNSS antenna connector shown as below is used to install the AX4E02 GN...

Страница 21: ... the package Figure 2 6 DC 5pin AC Power Adapter 2 The Serial 5pin to DC JACK DB9 Male cable and the DC JACK male with two wires the brown wire connects to power and the blue wire connects to ground below are optional It is to power David30 receiver using external power source which is not included in the package Figure 2 7 Serial 5pin to DC JACK DB9 male cable Figure 2 8 DC JACK male with two wir...

Страница 22: ...vid30 This Bluetooth module is used to connect to the COMM1 port of David30 receiver The SSID of this Bluetooth module is BT420R xxxxx_xxxxxx where the first xxxxx is the last 5 digits of the Bluetooth serial number which is printed on the Bluetooth module No password is needed to pair with it 2 1 5 COMM2 7pin to USB DB9 Cable The COMM2 7pin to USB DB9 Cable can be connected to a computer to downl...

Страница 23: ...2 11 COMM2 7pin to USB DB9 Cable 2 1 6 DB9 Male to USB Type A Male converter cable DB9 Male to USB Type A Male converter cable to connect with the COMM2 7pin to USB DB9 Cable in Figure 2 10 of section 2 1 5 Figure 2 12 DB9 Male to USB Type A Male converter cable The driver for the above cable can be downloaded from https www tersus gnss com software David30 receiver The COMM2 7pin to USB DB9 cable...

Страница 24: ...interface Figure 2 13 USB Type A Female to USB Micro Type C OTG cable 2 1 8 Height Measure Accessory The height measure accessory is used to determine the height of the antenna with higher accuracy Figure 2 14 Height Measure Accessory 2 1 9 Other accessories Bracket for rover is used to fixate all the devices on the ranging pole and magic tape is to tie the cables to the pole which bring convenien...

Страница 25: ...User Manual for David30 GNSS Receiver v2 0 24 Figure 2 15 Bracket for Rover Figure 2 16 Magic Tape Figure 2 17 Ranging Pole ...

Страница 26: ... to store all the devices and accessories of rover kit Figure 2 18 Carrying Case for Rover A power source can be used to power on the David30 however it is not included in the package and is to be prepared by the customers refer to section Power on David30 for more details Figure 2 19 Power bank ...

Страница 27: ...over Kit with 2W Radio Station can work with Base Kit with 2W Radio Station or Base Kit with 28W Radio Station The controller is not included in the package The TC20 controller is listed on https www tersus gnss com product tc20 controller When the 2W radio is in the work mode of transmitting power 2W Please use a larger current power adapter or a large 12V battery to supply power to this system I...

Страница 28: ...able 5 Button Description for 2W Radio RS460H Button Description Channel Button Press once the current channel will increase 1 channel 0 9 are available Power Button Press once to select the output power which can be 1W or 2W Protocol Button Press protocol button to switch the protocols between Transparent TT450 SOUTH SATEL and TRIMMK3 Two 2W radios must have the same protocol and the same channel...

Страница 29: ...TT450 protocol is selected GREEN FLASHING SOUTH protocol is selected RED FLASHING SATEL protocol is selected YELLOW TRIMMK3 protocol is selected ON It is solid on after the power is on 2 2 2 410 470MHz Radio Whip Antenna The 410 470MHz radio whip antenna is to be installed on 2W radio and receive radio signal Figure 2 19 410 470MHz radio whip antenna 2 2 3 COMM2 7pin to USB 2W Radio 5pin Cable The...

Страница 30: ...pin USB 2W Radio 5pin Cable COMM2 7pin to USB 2W Radio 5pin Cable can only be installed into the COMM2 port of David30 2 2 4 TNC J to TNC J Cable 1 0m Radio Antenna Extension Cable The TNC J to TNC J cable 1 0m is the extension cable between 2W radio RS460H and 410 470MHz radio whip antenna Figure 2 21 TNC J to TNC J cable 1 0m Radio Antenna Extension Cable ...

Страница 31: ...uwa app is installed in the Android device to configure the David30 If customer does not have an Ntrip Caster account or has any other questions please contact the local dealer or Tersus sales by email sales tersus gnss com for more details The descriptions of basic components for this kit refer to section 2 1 This section introduces different devices required for Base Kit Network Mode Base Kit Ne...

Страница 32: ...orking with height measure accessory the tape measure gives position of a point on ground with mm level accuracy Figure 2 24 Tape Measure 2 3 3 Other accessories A yellow carrying case marked with GNSS BASE is to store all the devices and accessories of base kit Figure 2 25 Carrying Case for Base ...

Страница 33: ...th the Bluetooth module Tersus Survey Nuwa app is installed in the Android device to configure the David30 The descriptions of basic components for this kit refer to section 2 1 This section introduces different devices required for Base Kit with 2W Radio Station Base Kit with 2W Radio Station can work with Rover Kit with 2W Radio Station only Figure 2 26 Base Kit with 2W Radio Base Kit with 2W Ra...

Страница 34: ...tted out without the antenna which may cause the temperature rise and overheat of the radio module Table 7 Base Kit with 2W Radio Station Device Name Quantity Items in field photo AX4E02 GNSS antenna 1 1 refer to section 2 1 2 GNSS antenna connector 2 2 refer to section 2 1 2 2W radio RS460H 1 3 refer to section 2 2 1 COMM2 7pin to USB 2W Radio 5pin Cable 1 4 refer to section 2 2 3 COMM1 Bluetooth...

Страница 35: ...in to DC JACK DB9 male cable 2 4 2 DC JACK male The DC JACK male is to connect to the Serial 5pin to DC JACK DB9 male cable in the figure above The two wires of this cable is to connect to the positive and negative of external power supply Figure 2 28 DC JACK male with two wires 2 4 3 High Gain Radio Antenna The gain of this high gain radio antenna is 5 5 dBi and the working frequency range is 450...

Страница 36: ...etal plate for radio antenna This metal plate is used to fixate the radio antenna to the tripod Figure 2 30 Metal plate for radio antenna 2 4 5 Telescopic pole for radio antenna The telescopic pole is used to extend the height for radio antenna Figure 2 31 Telescopic pole for radio antenna ...

Страница 37: ...igure 2 32 Hook and Screws for 2W Radio attached to 2W radio 2 4 7 Hook and Screws for David30 The hook and screws below are attached to David30 receiver for hanging on the tripod Figure 2 33 Hook and Screws for David30 attached to David30 2 4 8 Bracket for Mobile The bracket below is for fixating mobile terminal onto the tripod Figure 2 34 Bracket for Mobile ...

Страница 38: ...e Bluetooth module Tersus Survey Nuwa app is installed in the Android device to configure the David30 The descriptions of basic components for this kit refer to section 2 1 and 2 4 This section introduces different devices required for Base Kit with 28W Radio RS400H3 Base Kit with 28W Radio Station can work with Rover Kit with 2W Radio Station only Power bank of 5V output is not suitable to supply...

Страница 39: ...o chapter 5 for detailed specification Figure 2 36 28W Radio RS400H3 Below table present the definition of the LED indicators Table 8 Definition of LED indicators LED Description BT BT is Bluetooth green indicator light Currently RS400H3 does not support Bluetooth RX TX RX TX is data transmitting receiving red and green indicator light green indicator light represents data receiving red indicator ...

Страница 40: ...to connect to the DC port of David30 receiver the 28W Radio DC 5pin of this cable is to connect to the DC port of 28W radio and the Bullet DC is to connect with Bullet DC to Alligator Clips in Figure 2 28 The COMM2 7pin of this cable is to connect to the COMM2 port of David30 receiver Figure 2 37 28W Radio power cable ...

Страница 41: ...he GNSS antenna Connect the AX4E02 GNSS antenna to David30 with the GNSS antenna cable Please ensure the connectivity is reliable The ideal place for a GNSS antenna is a point without GNSS signals blockage from horizon to horizon and is far away from any potential interfering source The specific distance depends on type of the interfering source To make David30 work properly the customer needs to ...

Страница 42: ...g time of David30 depends on the capacity of the power supply The following formula can be used to estimate the operating time assume the output voltage is 5V If no radio or an external 28W radio is connected to the David30 Time hour capacity mA Hour 5 1000 3 2 If 1W radio is connected to the David30 Time hour capacity mA Hour 5 1000 3 0 3 2 If 2W radio is connected to the David30 Time hour capaci...

Страница 43: ...nd cables The detailed steps are described as follows 1 Install the Bluetooth module to the COMM1 port of David30 2 Connect the AX4E02 GNSS antenna to David30 with the GNSS antenna cable 3 Power on the David30 receiver with a power supply 4 Run Nuwa app click Device Connect 5 Select Bluetooth in the option list of Connect Type 6 Click Connect Config Search The SSID is BT420R xxxxx_xxxxxx No passwo...

Страница 44: ...anual for David30 GNSS Receiver v2 0 43 Figure 3 4 Connect using Bluetooth Figure 3 5 Search Bluetooth device A Bluetooth device can be removed from the Available Device list by pressing it for a few seconds ...

Страница 45: ... of the COMM2 7pin to USB DB9 cable 3 Connect the USB port of the DB9 Male to USB Type A Male converter cable to the USB port of the computer 4 Connect the DC 5pin port of the DC 5pin AC Power Adapter to the DC port of the David30 receiver 5 Connect the AC Power Adapter of the DC 5pin AC Power Adapter to an external power supply 3 4 2 USB to Serial COMM Port driver After completing the hardware co...

Страница 46: ...river software if the computer is connected on internet Windows search and install the driver software automatically In the situations of automatic search failed and the computer not connecting to the internet select Browse my computer for driver software and browse the location of the driver software which is downloaded from Tersus website https www tersus gnss com software Figure 3 7 COM port is...

Страница 47: ...ver Software manually Figure 3 9 Two methods of searching for driver software 3 4 3 Firmware Update The updated firmware is released and available for downloading on Tersus web site https www tersus gnss com software or it can be obtained from Tersus technical support ...

Страница 48: ...are update are as follows 1 Use TersusUpdate software in the Tersus Tool Suite for the firmware update Double click the icon on the desktop to launch the software Figure 3 10 PC software icons on desktop 2 In the TersusUpdate interface the software recognizes the serial port and scans the baud rate automatically Select the Port which is connected to David30 receiver browse the location for the upd...

Страница 49: ...Figure 3 11 Firmware Settings in TersusUpdate software 3 The firmware is updating in progress as shown in Figure 3 12 below Do not power off the receiver during the verification and update progress Figure 3 12 Update Progress of the firmware update ...

Страница 50: ...30 receiver is boot up the current firmware version can be checked in Tersus GNSS Center by typing LOG VERSION in the command area and in Nuwa app by clicking Device Device Info Note There is Advance Setting option in the firmware update window if a David30 receiver cannot boot up successfully or cannot work well after boot up or cannot finish firmware update successfully according to the above st...

Страница 51: ... off the David30 receiver wait for five seconds and power on the receiver again Figure 3 14 Advance Setting for firmware update After firmware update is finished power off the receiver wait for five seconds and power on the receiver again This option is for experienced users If you re not sure whether it should be selected contact Tersus technical support before selecting this option ...

Страница 52: ...David30 receiver and Tersus GNSS Center 2 Input LOG VERSION get the version info and LOG AUTHLIST get the auth list info in the command window of Tersus GNSS Center and send the output info to Tersus support If the output auth code is approved by Tersus a registration file in xxx txt format xxx is the SN number of David30 would be provided to customer In the registration file there is auth code co...

Страница 53: ... to the TersusSurvey folder of the android device click Register to complete the registration and the auth code will be shown in the window below Figure 3 16 Device Information interface on Nuwa app 3 6 Download Files from Internal eMMC The files saved on David30 s internal eMMC can be downloaded to the computer via a serial port or an USB port recommended and used in the following example ...

Страница 54: ...8W Radio power cable 2 Power on the David30 receiver 3 The GNSS_U disk will display on the computer 4 Open the GNSS_U disk and there are two folders inner and user As shown in figure 3 18 below 5 Copy the inner and user folders to see the related information from eMMC Figure 3 18 Folders in the GNSS_U disk It is recommended to ensure the computer has available CPU and memory when downloading files...

Страница 55: ...ns in section 3 3 1 or section 3 3 2 to connect the android device to the David30 receiver 2 Run Nuwa app click Device Data Terminal 3 Users can input commands in the command window according to the Log Command document 4 Click Send to input the command to the BX40C board Figure 3 19 Input command in Data Terminal on Nuwa app ...

Страница 56: ...ey and Tools Refer to the user manual for Nuwa app for details Figure 4 1 Booting up page of Nuwa app Tersus Survey Nuwa app supports Android operating system currently the IOS version is not available The minimal requirements for Android device 1 The device must support OTG otherwise it cannot be connected to David30 with cables but only with Bluetooth 2 The Android system is 6 0 or later version...

Страница 57: ...with Huawei Mate 7 Honor 7 9 Oppo A57 Vivo X9 Samsung C7 Pro and Tersus TC20 Controller 3 It is highly recommended that an Android device with better hardware performance than those above is used to run Nuwa app Figure 4 2 Nuwa app interface 1 Project Figure 4 3 Nuwa app interface 2 Device ...

Страница 58: ...User Manual for David30 GNSS Receiver v2 0 57 Figure 4 4 Nuwa app interface 3 Survey Figure 4 5 Nuwa app interface 4 Tools ...

Страница 59: ...zontal 3 0m RMS Vertical RTK Positioning 8mm 1ppm Horizontal 15mm 1ppm Vertical DGPS 0 4m RMS Horizontal 0 8m RMS Vertical GNSS Channels 576 Time to First Fix Cold Start 50s Warm Start 30s Reacquisition 2s Data Rate Measurements 20Hz Position 20Hz Time Accuracy 20ns RMS Velocity Accuracy 0 03m s RMS Measurement Precision C A Code 10cm P Code zenith direction 10cm Carrier Phase zenith direction 1mm...

Страница 60: ... 507 5 Procedure II 95 Random Vibration MIL STD 810G Method 514 6 Category 24 7 7 g RMS Sinusoidal Vibration IEC 60068 2 6 5 g Bump ISO 9022 31 06 25 g Shock Operating MIL STD 810G Method 516 6 Procedure I 40 g Non operating MIL STD 810G Method 516 6 Procedure V 75 g Water dust proof IP67 Power Requirement Input Voltage 5 28 V DC Power Consumption 6 8W without external Radio ...

Страница 61: ...ition of connectors on David30 Connector Pin No COMM1 RS 232 COMM2 RS 232 DC 1 PWR PWR GND 2 GND GND TXD3 3 TXD1 TXD2 RXD3 4 RXD1 RXD2 GND 5 GND GND PWR 6 PPS USB D 7 EVENT USB D The pin definition s view from outside to David30 is as below Figure 5 2 Pin Definition of the COMM1 COMM2 DC ports ...

Страница 62: ...mpedance 50 Ohm Polarization RHCP Axial Ratio 3dB Azimuth Coverage 360 Output VSWR 2 0 Peak Gain 5 5dBi Phase Center Offset 59 14mm Phase Center Accuracy 2mm LNA Specification LNA Gain 40 2dB Noise Figure 2 0dB VSWR 2 0 Input Voltage 3 3 12V DC Operating Current 45mA Ripple 2dB Physical Description Dimension Φ152 62 2mm Weight 500g Signal Connector TNC Female Installation connector 5 8 x 11 UNC 2B...

Страница 63: ...ower Input voltage DC 5 12V Power consumption in transmitting 6W DC 5V transmitting power 2W 5W DC 5V transmitting power 1W Power consumption in receiving 0 5W DC 5V External Antenna Impedance 50 ohm VSMR 1 5 Interface TNC female Transmitter Receiver Frequency range 410MHz 470MHz Channel width 12 5KHz 25KHz Modulation type GMSK 4FSK Transmission power High power 2W 33 5 0 5dBm DC5V ...

Страница 64: ...el rejection 12dB Adjacent channel selectivity 50dB 25KHz Distance Typical 5 7KM Modem Air baud rate 19200 9600 4800bps Serial baud rate 115200 38400 default 19200 9600bps Radio protocol TrimTalk450 TrimMark3 South Transparent Satel Environment Temperature 30 C 60 C operating 40 C 85 C storage Mechanical Dimension 107 62 26 6mm Weight 200g ...

Страница 65: ...dio RS400H3 General Specification Frequency range 410 470MHz Operating mode Simplex Channel width 25KHz 12 5KHz Modulation Type GMSK 4FSK Operating voltage 9 16V DC Power consumption High power 28W 78W DC 12V Medium power 22W 60W DC 12V Low power 5W 35W DC 12V Standby 2W DC 12V Frequency stability 1 0ppm Transmitter RF output power High level 28W 44 5 0 5dBm DC 12V Medium level 22W 43 4 0 5dBm DC ...

Страница 66: ...9600bps 19200bps 38400bps 57600bps 115200bps Protocol TrimTalk TrimMark3 Transparent EOT Satel Environmental Temperature Operating 40 65 C Storage 50 85 C Dustproof and waterproof IP67 Physical Description Dimension 175 x 130 x 86 5 mm Weight About 2 0kg Data Power interface LEMO 5pin Installation Hook Mechanical Drawing Signal Definition ...

Страница 67: ...R 9 16V DC Pin 2 Power GND Pin 3 RXD Pin 4 Signal GND Pin 5 TXD Table 5 Default factory configuration for RS400H3 Channel Frequency 00 457 550MHz 01 458 050MHz 02 458 550MHz 03 459 050MHz 04 459 550MHz 05 460 550MHz 06 461 550MHz 07 462 550MHz 08 463 550MHz 09 464 550MHz Customized frequency 410 470MHz ...

Страница 68: ...ation with force can damage the David30 receiver The following may be used for David30 system An Android device An external large capacity power if a base kit with 28W or with 2W radio station is used A tripod optional A tribrach optional It is highly recommended that a David30 base variant is installed on a tripod It is normal that the metal case of David30 is hot during operation ...

Страница 69: ... connect the COMM2 port of David30 to the USB port of the Android device which are COMM2 7pin to USB DB9 cable or COMM2 7pin to USB 2W Radio 5pin cable or COMM2 7pin to 28W Radio power cable USB Type A Female to USB Micro Type C OTG cable The detailed steps of David30 as a Rover receiving corrections from Internet are as follows 1 Install the GNSS antenna on a ranging pole at a designated point 2 ...

Страница 70: ...id30 9 Back to Device Rover 10 Select Default PDA Network Default Server1 as shown in Figure 6 3 click Detail to configure the parameters of the Network 11 Select Network for Data Link 12 Input IP Port Username Password and Mount Point if Ntrip is selected for Protocol Type 13 Input IP and Port if TCP is selected for Protocol Type 14 Back to Rover interface click Start 15 When all the configuratio...

Страница 71: ...User Manual for David30 GNSS Receiver v2 0 70 Figure 6 3 Rover setting interface Figure 6 4 Edit Rover configuration ...

Страница 72: ...elow 1 Use the COMM2 7pin to USB DB9 cable to connect the COMM2 cable and a computer or Use the COMM1 7pin to DB9 cable to connect the COMM1 cable and a computer the COMM1 7pin to DB9 cable shown as below 2 Open Tersus GNSS Center application on the computer and type below commands in the command window UNLOGALL remove all logs FIX NONE cancel the fixed coordinate of a base station ...

Страница 73: ...to David30 with Wire Base Two cables are used to connect the COMM2 port of David30 to the USB port of the Android device which are COMM2 7pin to USB DB9 cable or COMM2 7pin to USB 2W Radio 5pin cable or COMM2 7pin to 28W Radio power cable USB Type A Female to USB Micro Type C OTG cable The detailed steps of using Nuwa app to configure David30 as a base transmitting corrections to Internet are as f...

Страница 74: ...onnect Type 8 Click Connect Config to update configuration accordingly 9 Click Connect to enable the communication with David30 10 Back to Device Base 11 Select Default Auto Startup PDA Network Default Server1 RTCM32 then click Detail to configure the parameters about the Network 12 If Auto Start is selected for start method skip to step 14 13 If Manual Start is selected for start method input the...

Страница 75: ...User Manual for David30 GNSS Receiver v2 0 74 Figure 6 7 Connect David30 via Bluetooth Figure 6 8 Base setting interface Figure 6 9 Edit Base configuration ...

Страница 76: ...ct the COMM2 cable and a computer or Use the COMM1 7pin to DB9 cable to connect the COMM1 cable and a computer the COMM1 7pin to DB9 cable shown as below 2 Open Tersus GNSS Center application on the computer and type below commands in the command window UNLOGALL remove all logs UNDULATION USER 0 0 Set user specified undulation value for ellipsoid height2 FIX POSITION B L H B latitude degree L long...

Страница 77: ...LOG COM2 RTCM1033 ONTIME 10 output antenna receiver information Below commands output ephemerides not default configuration LOG COM2 RTCM1019 ONTIME 5 GPS ephemerides LOG COM2 RTCM1020 ONTIME 5 GLONASS ephemerides LOG COM2 RTCM1042 ONTIME 5 BeiDou ephemerides LOG COM2 RTCM1044 ONTIME 5 QZSS ephemerides LOG COM2 RTCM1046 ONTIME 5 Galileo ephemerides SAVECONFIG save configuration Note If customer ne...

Страница 78: ...e of Base Rover with Radios The detailed steps of David30 with 28W radio as a base transmitting corrections to a David30 with 2W radio as a rover are as follows Hardware connection for David30 as a base with 28W radio 1 Install the two tripods at the designated points 2 Install the High Gain Radio Antenna with the telescopic pole for radio antenna if needed 3 Install the metal plate the GNSS anten...

Страница 79: ...he Bullet DC is to connect with Bullet DC to Alligator Clips in Figure 2 28 9 Double check the connections above and connect the alligator clips to the external battery Hardware connection for David30 as a rover with 2W radio 10 Install the AX4E02 GNSS antenna on a ranging pole and place it at the designated point 11 Connect the AX4E02 antenna to the rover David30 with the GNSS antenna cable and c...

Страница 80: ...Radio 38400 RTCM32 click Detail 17 If Auto Start is selected for start method skip to step 20 18 If Manual Start is selected for start method input the position of the base manually 19 Click OK to return to the Base interface click Start to complete the configuration Figure 6 12 Base work mode list Figure 6 13 Edit base configuration ...

Страница 81: ...3 1 for the communication between an Android device and the David30 as a rover 21 Run Nuwa app click Device Rover 22 Select Ext Radio 38400 click Detail 23 Ensure the Data Link is Radio and Baud Rate is correct 24 Click OK to return to the Rover interface click Start to complete the configuration Figure 6 14 Rover work mode list ...

Страница 82: ...cked about 165Kbyte min if 30 satellites are tracked If the collection frequency increases the data size would increase proportionately David30 provides up to 8GB internal eMMC for data collection before data collection estimate whether the free space is enough for the data collection Refer to section 3 6 to delete the files on eMMC to get more free space During data collection the antenna should ...

Страница 83: ...l the GNSS antenna and the antenna connector on the tribrach 3 Connect the AX4E02 GNSS antenna to the David30 with the GNSS antenna cable 4 Create communication between the David30 and the Android device with cables refer to section 3 3 1 Software configuration 5 Run Tersus Survey app Nuwa click Survey Static Survey 6 Ensure the necessary parameters including interval cutoff angle etc are filled t...

Страница 84: ...ey configuration The detailed steps of configuring David30 using Tersus GNSS Center via cables are listed below 1 Use the COMM2 7pin to USB DB9 cable to connect the COMM2 cable and a computer or Use the COMM1 7pin to DB9 cable to connect the COMM1 cable and a computer the COMM1 7pin to DB9 cable shown as below ...

Страница 85: ...sed version of the RANGE log LOG FILE GPSEPHEMB ONCHANGED NOHOLD save the decoded GPS ephemeris LOG FILE BDSEPHEMERISB ONCHANGED NOHOLD save the decoded BDS ephemeris LOG FILE GLOEPHEMERISB ONCHANGED NOHOLD save the decoded GLONASS ephemeris LOG FILE GALINAVEPHEMERISB ONCHANGED NOHOLD save the decoded Galileo INAV ephemeris LOG FILE QZSSEPHEMERISB ONCHANGED NOHOLD save the decoded QZSS ephemeris S...

Страница 86: ...ls about command POSAVE refer to the Log Command document For the users who need the base to keep the same fixed position after a power cycle auto base station list function is introduced The procedure is introduced as below 1 Follow Figure 3 6 and the detailed steps in section 3 4 1 to create communication between a David30 receiver and Tersus GNSS Center 2 Under the menu click Tool Auto Base Sta...

Страница 87: ...1 hour is 36 seconds the base is fixed within 36 seconds averaging position 5 Click Refresh the fixed position is displayed as below Figure 6 20 Fixed position for base station 6 After a power cycle if the base is moved less than 20m away from the last position it would fix with the same position In the above example latitude keeps 31 19042830 longitude keeps 121 59319162 and ellipsoid height keep...

Страница 88: ...Channel switching button 2 Power switching button 3 Protocol switching button 4 Current channel display 5 Power indicator H L 6 Transceiver mode indicator 7 Protocol indicator 8 Power Supply indicator 1 Boot up The radio module is boot up directly when powered on 2 Channel switching Press the channel switching button once the channel is increased by one the ...

Страница 89: ... light flashing represents South the red light flashing represents SATEL the yellow light on represents TRIMMK3 5 Transceiver mode switching Simultaneously press and hold the channel switching button and power switching button for 1 second to switch the transceiver mode T is steady red for transmit mode and red light is flashing for transmitting data R is steady green for receive mode and green li...

Страница 90: ...trictly forbidden to use a damaged antenna The output impedance of the antenna interface of this radio is 50 ohms Please use antennas and feeders with input impedance of 50 2 ohms and VSWR less than 1 5 Using an antenna that is not strictly matched with this radio would result in a shortened transmission distance for the radio and it is possible to damage the radio if the mismatch is particularly ...

Страница 91: ...minates when successful power on under normal power supply While power on long press the power button for 3 seconds to power off the power indicator light turns off and the display is off Parameter confirmation in the menu Left Switch over various functions in the menu Right Up Select corresponding item in the current menu Down 2 Indicator status Normal power on off of the radio has memory functio...

Страница 92: ...tes constantly When the voltage alarm appears if it is under voltage alarm it is needed to add 0 3V based on the under voltage threshold value to resume to the normal operating voltage the green power indicator light illuminates constantly Note Abnormal shutdown means not powering off by long pressing the power button for example directly disconnecting power Normal shutdown refers to power off by ...

Страница 93: ...ter selection Data protocol Under this menu you can set up the current communication protocols such as TRANSEOT TRIMTALK and TRIMMK3 Select required communication protocol through up and down buttons and press the power key to select this protocol as the current communication protocol the star character will appear after selection Note After changing the protocol you need reselect the air baud rat...

Страница 94: ...urrent communication air baud rate the star character will appear after selection Transmit power Under this menu you can set up the current wireless transmitting power level Currently three levels of power high medium and low are supported These three levels of power values can be customized according to the demands of users Select required transmitting power through up and down buttons and press ...

Страница 95: ...te as the serial port baud rate of the current communication the star character will appear after selection Serial baud rate self adaption Under this menu there are two options self adaptive master switch and triggering enabling The former has memory function if turning on the switch ON is displayed on the menu if off then OFF is displayed Self adaptive triggering enabling does not have memory fun...

Страница 96: ...serial port baud rate is not successfully self adaptive this function is always operating Figure 6 23 Serial baud rate self adaption OLED sleep mode Only if the Function is switched to On can the OLED display enter the sleep mode Sleep time has the following levels 1min 5min 10min 15min 20min 25min and 30min Note After the OLED display enters sleep it can be waken up through button and pop up mess...

Страница 97: ... 7 2 Radio Installation The 28W radio is hooked on a tripod for the base station 1 Large amount of heat would be generated when the radio is in transmission When the radio is working please do not place the radio in poor ventilated box wrap or cover any item on the surface of the radio 2 In an environment with a high temperature of more than 40 C or intense sunlight the surface of the radio would ...

Страница 98: ...hed with this radio would result in a shortened transmission distance for the radio and it is possible to damage the radio if the mismatch is particularly serious 2 The original antenna of this radio is strictly matched with this radio and the performance meets the requirements of this radio The original antenna of this radio would better play the performance of this radio 3 Under normal circumsta...

Страница 99: ...rrester for inductive lightning protection 7 1 Direct lightning protection As the specific lightning protection method required the distance between the lightning rod and the protected object must be not less than 3m The height of lightning rod is determined in accordance with the Rolling Ball Rule and can be roughly calculated Figure 7 1 Schematic diagram of direct lightning prevention ZGZ 200 2 ...

Страница 100: ...tal cabinet is used to shield inductive lightning and the power unit is additionally assisted with lightning protection socket and single power supply arrester Figure 7 3 Single power lightning arrester 7 2 2Lightning protection for communication cables Install lightning protection devices at both ends of the communication cable One end is close to the sensor to avoid current damage to the sensor ...

Страница 101: ...lifier and other related equipment according to the actual situation Figure 7 4 The lightning arrester for communication cable 7 2 3Grounding net For the construction of grounding net four 50 50 5mm hot dip galvanized angle steels are used as vertical poles L 2 5m which are inter connected by 40 4mm hot dip galvanized flat steels and the buried depth of the ground pole is more than 0 7 meters The ...

Страница 102: ...ation Satellite System GNSS Global Navigation Satellite System GPS Global Positioning System IF Intermediate Frequency IMU Inertial Measurement Unit IO Input Output LED Light Emitting Diode LNA Low Noise Amplifier MPU Micro Processing Unit NMEA National Marine Electronics Association PC Personal Computer PPK Post Processing Kinematic PPS Pulse Per Second RF Radio Frequency RINEX Receiver Independe...

Страница 103: ...d30 GNSS Receiver v2 0 102 SSID Service Set Identifier TTFF Time to First Fix TTL Transistor Transistor Logic level UART Universal Asynchronous Receiver Transmitter USB Universal Serial BUS WGS84 World Geodetic System 1984 ...

Страница 104: ...out notice and does not reflect the commitment on Tersus GNSS Inc No part of this manual may be reproduced or transmitted by all means without authorization of Tersus GNSS Inc The software described in this document must be used in terms of the agreement Any modification without permission from Tersus GNSS Inc is not allowed ...

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