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Summary of Contents for LPR-2DB

Page 1: ...SYMEO LPR Product LPR 2DB Product Documentation...

Page 2: ...f Files 12 2 3 Project Planning 15 3 SYSTEM DESCRIPTION 18 3 1 Technical Data 18 3 2 Operating Mode 19 3 2 1 Operation Mode 1 Basic Cell 19 3 2 2 Operation Mode 2 Managed Cell 20 3 2 3 Operation Mode...

Page 3: ...PR 2DB Integral Stations and Installation Points 41 5 3 Installation of LPR antennas 41 5 3 1 Connection of antenna cables to the mobile units LPR 2DB Station 41 5 3 2 Mounting of LPR antennas 42 5 3...

Page 4: ...iguration file for LPR mobile unit base station 61 7 3 4 Upload DSP configuration file for master transponder unit 62 7 3 5 Upload DSP configuration file for transponder unit 65 7 4 Editing of configu...

Page 5: ...ep 2 Linux Kernel 100 9 6 3 Step 3 User space optional 103 9 6 4 Step 4 Restart 103 9 7 System Log 104 10 SYMEO 2D PROTOCOL 106 10 1 Introduction Basics 106 10 1 1 Configuration file Symeo_2D ini 106...

Page 6: ...em LPR 2DB Product Documentation General Copyright Symeo 2012 Page 6 of 132 11 APPENDIX A AGENCY CERTIFICATIONS 129 United States FCC and Canada Industry Canada 129 United States FCC 129 Canada Indust...

Page 7: ...4 20 FCC Appendix added VERWENDETE SYMBOLE The following symbols are used in the documentation This symbol appears before instructions that must be followed at all times Failure to comply with these i...

Page 8: ...Symeo LPR System LPR 2DB Product Documentation General Copyright Symeo 2012 Page 8 of 132...

Page 9: ...ice must be carried out by authorized technicians Unauthorized opening and incorrect repairs could result in severe danger to the user danger of electric shock radiated energy fire hazard 1 4 Transpor...

Page 10: ...upply to the device immediately and notify your SYMEO Service Protect the contacts of all of the device s sockets and plugs from static electricity Do not touch the contacts If it is ever necessary to...

Page 11: ...ion contains no serviceable components When opening ensure that no fluid gets into the housing When sealing the station ensure that the seal is included in the cover and that the Compact station is co...

Page 12: ...bes difference in the operating mode An overview about the operating modes is given in chapter 3 2 2 2 Overview of Files LPR 2DB Station Mobile unit base station master_basestation_config txt or Bases...

Page 13: ...es The folder staticCells contains all files for the LPR 2DB Integral Station including the master LPR 2DB Integral Station The folder name for all LPR stations is named with the serial number To allo...

Page 14: ...n Introduction Copyright Symeo 2012 Page 14 of 132 Folder for the files of the firmware for the mobile unit Folder for the configuration files of the DSP for the mobile unit Folder for the configurati...

Page 15: ...les and the number of cells Symeo Chapter 3 2 4 Definition of vehicle model HoverTrack model or VehicleTrack model Symeo Chapter 3 3 5 Definition of antenna positions and position of mobile unit on th...

Page 16: ...has to be set Offset from point of origin to container center has to be determined Customer Chapter 6 2 chapter 6 3 13 Implementation of Surveying coordinates in configuration files The surveying coor...

Page 17: ...Symeo LPR System LPR 2DB Product Documentation Introduction Copyright Symeo 2012 Page 17 of 132 17 Testing of correct positions Testing cell with analyzing Software Symeo MAP Customer Symeo Chapter 0...

Page 18: ...shion 4 to 6 wall mounted units are arranged to form a group with a unique group ID and an individual measurement ID ranging from 0 5 for each wall mounted unit For the communication between the mobil...

Page 19: ...xed wall mounted units LPR 2DB Integral Station 1 Master no limitation of mobile units LPR 2DB Station measurement principle TDOA time difference of arrival cell coordinates are stored on the mobile u...

Page 20: ...e setup of mode 1 and an additional master transponder for coordination The master transponder assigns the measurement slots for different mobile units The mobile unit no longer initializes the measur...

Page 21: ...el commands 5 Broadband measurement signals 3 2 3 Operation Mode 3 TDOA Sometimes many mobile units are present in a cell or measurement of the position of mobile units at exactly the same time is des...

Page 22: ...nted units 3 Master unit 4 Communication channel commands 5 Broadband measurement signals Additionally to the described solution of a fixed master there is the possibility to use a moving master In th...

Page 23: ...ne y x 0 0 center of antenna Figure 5 HoverCraft model for a trolley 3 3 2 Vehicle Track If the object can also turn around its center the vehicle track model is used Examples for the vehicle model ar...

Page 24: ...and the master LPR 2DB Integral Station can only be accessed via the frequency channel of the mobile station DSP LPR 2DB Integral Station Transponder DSP Master LPR 2DB Integral Station Master Mobile...

Page 25: ...SW Symeo Map PC SW Symeo Map Mobile Einheit TCP IP RS232 TCP IP Figure 8 cycle of a 2D positioning measurement and possible interfaces In mode 1 Basic Cell and in mode 2a Managed Cell the cell coordin...

Page 26: ...nector cables and antennas For the determination of the position of the LPR 2DB Integral Station at the light poles or at the wall the system range of max 300 meters and the position of the antennas o...

Page 27: ...e the Compact Station The pressure equalization membrane must not be changed or covered 2 Network optional The standard industrial Ethernet port of the station is designed as a Harting type push pull...

Page 28: ...ort no 1 3 Antenna port no 2 5 Antenna port no 4 7 Antenna port no 3 2 Network optional The standard industrial Ethernet port of the station is designed as a Harting type push pull connector 4 Pressur...

Page 29: ...ble to order cables length 5 m by Symeo with integrated Lumberg connector and cut cable head see chapter 4 3 Option 2 It is possible to order a connector box to wire all cables see chapter 4 3 2 When...

Page 30: ...taport RXD 4 yellow LPR Dataport TXD 5 grey Network diagnostics port RXD 6 pink Network diagnostics port TXD 7 blue GND RS232 8 red GND RS232 and shielding Consider the dependency of the maximum baud...

Page 31: ...according Category 5 cabling standard ISO IEC 11801 2002 Transmission characteristics according Category 5 ISO IEC 801 2002 and EN 50173 1 Technical Data HARTING Push Pull Connector Wire gauge data AW...

Page 32: ...5 4 4 1 Example Connector Box Connection of an 8 pin cable Figure 14 1 Power consumption by customer 2 Serial Interface by customer 3 From LPR In this example the power supply is at pin1 and 2 The ser...

Page 33: ...ng work must be carried out by qualified and trained technicians If the LPR 2DB Integral Station is installed on a pole it must be secured to ensure that it does not slip If the direct current is inco...

Page 34: ...electrical connection and the plug for connecting the hood is located Strain relief clamps are applied to the base to avoid mechanical stress on the power supply cables The LPR 2DB Integral Station c...

Page 35: ...10 dBi Sector Antenna vertical 60 30 optional 3 dB 0 dB 3 dB horizontal 160 3 dB 0 dB 3 dB A d B A 280mm B 125mm d 150mm Antenna Connector Type N Figure 16 Typical LPR antennas for 2D applications The...

Page 36: ...012 Page 36 of 132 6 dBi and 10 dBi Omnidirectional Antenna A A 228mm B 38mm d 50mm B d applicable for wall and pole mounting 10 dBi Sector Antenna A d B A 150mm B 128mm d 100mm applicable for wall an...

Page 37: ...aded and static bending The LPR 2DB Station should preferably be installed so that the connecting sockets point downwards In this way the connections are protected from rain and dust To install the LP...

Page 38: ...LPR 2DB Integral TPB000530 LPR 2DB Integral cell coordinator All installation repair and servicing work must be carried out by qualified and trained electrical technicians 5 2 1 Electrical Interface...

Page 39: ...Page 39 of 132 Figure 19 Connecting the power supply 5 2 2 Installation The LPR 2DB Integral Stations are supplied already preassembled hood base and with the bracket separate Figure 20 shows various...

Page 40: ...with an SW13 fork wrench Pass the cable through the terminal pins to the terminal block and clamp it according to the instructions on the terminal block Tighten the screwed cable gland on the feedthro...

Page 41: ...s 5 3 1 Connection of antenna cables to the mobile units LPR 2DB Station If several antennas are used ensure that they are connected to the correct ports When installing the cable ensure that electros...

Page 42: ...refore when installing the antenna fixture ensure that no components are blocking the line of sight between the antennas If necessary contact the SYMEO technical department If you change the position...

Page 43: ...rect mounting position of the antennas you have to take care to guarantee a free line of sight between the antenna s on the vehicle and all LPR 2DB Integral Stations If construction on the vehicle par...

Page 44: ...t Symeo if there are questions regarding the installation position of the antenna If a second antenna is used on the vehicle the distance to the first antenna should be at least 1 meter to calculate a...

Page 45: ...Symeo LPR System LPR 2DB Product Documentation Installation Copyright Symeo 2012 Page 45 of 132...

Page 46: ...including mounting bracket 6 1 1 Coordinate system of LPR 2DB Integral Station The accuracy of the position output depends in large part on the exact recording of the positions of the LPR 2DB Integra...

Page 47: ...l LPR components In plane areas the z position can be estimated directly towards the ground level The LPR 2DB Integral Stations must be measured in x y and z direction 6 1 2 Reference point of LPR 2DB...

Page 48: ...PR 2DB Integral Station The alignment of the stations is recorded as a vector in the coordinate system that is defined for the application and is entered as an ex ey value Integer values are possible...

Page 49: ...nd truncate the decimal place Example a 12 10 cos a 9 78 10 sin a 2 08 ex 9 y 2 6 1 4 Formatting of coordinates The coordinates of the integral stations must be provided as EXCEL file in following for...

Page 50: ...the front axle The x axis shows in positive driving direction Referring to this origin the antennas and the load position must be surveyed The coordinates of the rotation point are in the middle of t...

Page 51: ...as on a van carrier 6 2 3 Reference system for vehicle type passenger car The origin of the reference system for the automobile is on the rear axle The x axis shows in positive driving direction Refer...

Page 52: ...ype crane trolley Reference system crane y x 0 0 0 Center of antenna x y Figure 34 reference coordinate system and installation position of antennas on a crane The origin of the reference system for t...

Page 53: ...tational solid of the antenna 6 3 1 Formatting of coordinates The position of the antennas must be provided to Symeo in the following EXCEL format compare Table 2 The following values must be entered...

Page 54: ...of the antenna at the connected port in coordinates of the vehicle Specification is in meters and with 3 decimal numbers y y position of the antenna at the connected port in coordinates of the vehicle...

Page 55: ...ame as in the cell plan Each LPR 2DB Integral Station has a three digit short ID which consist of a two digit Cell ID and a one digit Station ID Cell ID Station ID Short ID 10 0 100 10 1 101 10 2 102...

Page 56: ...er compare chapter 2 2 Figure 37 The folder mobile units contains the parameter for mobile LPR unit Static cells contains the parameter for the fixed mounted LPR station e g surveyor data All LPR unit...

Page 57: ...laces the Cell number of the transponders the sign the station ID 7 2 1 File basestation_config txt This file is preconfigured by delivery and needs no changes 7 2 2 File stationXXM_config txt This fi...

Page 58: ...eo and are not allowed to be changed All coordinates must be provided in mm 7 2 3 File stationXXY_config txt These files is preconfigured by delivery and needs no changes 7 3 Upload of configuration f...

Page 59: ...obile unit with TCP IP interface read this chapter If you have an LPR station mobile unit with RS232 interface read the next chapter 7 3 2 Connect your PC and the mobile unit with a LAN cable Keep in...

Page 60: ...s shown in the terminal window If the access failed check if the port 3045 of the LPR station is opened and the IP address is correct compare 9 3 7 3 2 Connection with LPR mobile unit type compact via...

Page 61: ...ial cable 2 m Open the terminal program RealTerm Click in the tab Display on Display as ANSI Choose the baud rate to 115 200 Select your COM port Click on Open 7 3 3 Upload DSP configuration file for...

Page 62: ...Figure 44 Change to tab Send Choose the path and your file for the mobile station Basestation_config txt Press the Send File button A successful upload is confirmed in the terminal window 7 3 4 Uploa...

Page 63: ...K channel Access via TCP IP or serial interface Figure 45 Access to the master transponder An access to the master transponder happens via radio communication from the mobile station Establish a conne...

Page 64: ...p ID of the transponder Enter the station ID of the transponder 30 Enter the FSK channel Enter 1 for the antenna port of this station Press Enter After a moment the mobile unit is connected via radio...

Page 65: ...7 3 5 Upload DSP configuration file for transponder unit These files for the fixed mounted stations transponder are preconfigured by delivery and need no changes An Upload of the configuration file f...

Page 66: ...is the station ID The FSK channel is consistent with the cell ID group ID for the first 40 cells Open a FSK connection with the master transponder Figure 47 Enter in the terminal window key 5 for fsk...

Page 67: ...he LPR 2DB Compact Station or it runs on a separate PC If using the mobile unit ARM9 the FusionEngine is already pre configered and only a few adaptations must be made If it runs on an extern PC some...

Page 68: ...ion settings and some general settings of the software FusionEngine Figure 50 fusion ini example MeasurePath The path where the FusionEngine recordings measurements are saved Must only be changed if F...

Page 69: ...ode 1 Basic Cell mode 2a Managed Cell and mode 3a TDOA In mode 2b Managed Cell and 3b TDOA the coordinates are entered directly in the file for the DSP of the master transponder compare chapter 7 2 2...

Page 70: ...ile unit antennas Additionally in operation mode 1 2a and 2b all RTOF modes this file contains the cable length of the used antennas Figure 52 LPR_B ini example For all LPR 2DB stations with single re...

Page 71: ...modes operation modes 1 2a and 2b the electrical cable length of antenna must be set 7 4 4 LoadPos ini This file contains the load position of the vehicle It is entered in vehicle coordinates in m The...

Page 72: ...LPR 2DB Product Documentation Commissioning Copyright Symeo 2012 Page 72 of 132 Format The format of the protocol output ascii or binary Additional settings for customizing customer protocol can be fo...

Page 73: ...onst_Pos ini if double receiver Const_Pos1 ini and Const _ Pos2 ini Symeo_2D ini or customer ini If the software FusionEngine operates on the PC optionally data is available via RS232 interface In thi...

Page 74: ...saving the connection parameters Save press Login in order to establish a connection For the first time connecting to the remote machine the server host key must be stored pressing Yes in the followin...

Page 75: ...e configuration files browse to the path mnt user3 The content of the the non volatile memory in mnt user3 is now shown Keep in mind that deleting renaming editing and permission changes may lead to m...

Page 76: ...own above can be done via drag drop by selecting the files by mouse and dragging the files from the explorer window to the WinSCP window Release the mouse button and the transfer will start Depending...

Page 77: ...CP program 7 5 1 5 Step 5 Station reboot Execute a reboot changes will take effect during startup Reboot can be executed via the website of the station by a power cycle or by using the reboot command...

Page 78: ...on and Connection with Symeo MAP 8 1 1 lpr ini The file lpr ini must be modified for commissioning of Symeo MAP This file contains the connection parameters hostname and ports of the mobile units The...

Page 79: ...alhost Enter the port of that mobile unit The default port is 7777 It must be consistent with the port entry in the file fusion ini chapter 7 4 1 If you change the port in the file fusion ini you have...

Page 80: ...e executable file The main window for the application opens Depending on how many fusion engines are defined in the lpr ini file you can choose a mobile unit that is connected to the PC If you have no...

Page 81: ...ase station You can connect or disconnect to a FusionEngine base stations and edit the lpr ini file View This menu is only active if you are connected to a FusionEngine You can show hide the display e...

Page 82: ...ion is open 3 POSITION DISPLAY If you are connected to a FusionEngine the LPR 2DB transponders and the current position of the mobile unit are displayed in this area In the View menu you can customize...

Page 83: ...reception The following colors are also used gray the transponder was not included in the measurement red the transponder has been reported as faulty 8 2 2 Radius Hyperboloids of Transponders R To en...

Page 84: ...cable Press the keys until the transponder radii all intersect at roughly the same point The calculated length of the cable offset will be displayed as a blue text in the position display window toget...

Page 85: ...station it is maybe neccessary to change the network parameters of your computer Both units must be located in the same network That means in this example that the first three numeric pads of both IP...

Page 86: ...browser In the address bar of the web browser enter the IP address of the LPR station http 192 168 1 99 Press Enter The IP address of the LPR station is 192 168 1 99 per delivery status except another...

Page 87: ...your information for authentication Enter user name symeo and the password and click OK The password has been set to 54all2u by the manufacturer In order to protect your system from being reconfigure...

Page 88: ...ime zone see chapter 9 3 6 Special Functions see chapter 9 3 6 To accept the changings of the LPR station press button Upload changes Afterwards press button Reboot System to reboot the LPR station wi...

Page 89: ...d cannot be edited Gateway IP address of the standard gateway Other LAN segments can be reached with the standard gateway In DHCP Active mode this address is assigned by the server and cannot be edite...

Page 90: ...oose the Connection Type between the LPR station and your PC or PLC for each port Depending on the connection you select different masks are editable 9 3 3 1 ttyAM1 Parameterization port Network Setti...

Page 91: ...mission is required Serial Settings Area Packet Filter If selected type Fixed Frame it is possible to filter packed data Default value is none Example 2 3 filters the data type 0x02 Send request and d...

Page 92: ...ole accesses to port 23 via Telnet checked accesses are allowed The port number is not editable See also section Extended system access SSH SCP SFTP Click this checkbox to allow or prevent console acc...

Page 93: ...ezone If a NTP server is available and the IP address of the NTP server is entered you can choose the time zone of the LPR station It is alos possible to enter the time zone manually 9 3 6 Special fun...

Page 94: ...ngs System reboot As described in chapter 9 3 6 it is necessary to transmit the changes to the LPR station and afterwards reboot the station Press button Upload changes to load the changes Scroll down...

Page 95: ...nel code MemFree Free working memory Filesystem Details about the active file systems and associated statistics OS Version Operating system kernel compiler and compiling date SVN Version Current versi...

Page 96: ...ter zero means problems when receiving or sending data This happens if the data cannot be readout fast enough Example 1 waiting for incoming connection Proto Send Q Recv Q Local Address Foreign Addres...

Page 97: ...ess IP address of opposite station 192 168 1 1 with port 1333 State Status of connection 9 6 Update Firmware With this function you can update the firmware The firmware can be updated for example when...

Page 98: ...Linux Kernel Step 3 Optional 2D Application Step 4 Restart Step 3 is exclusively for an update for 2D application Otherwise this part can be skipped 9 6 1 Step 1 File system It is possible to make a...

Page 99: ...yright Symeo 2012 Page 99 of 132 Click the Upload button in the Step 1 flash ramdisk gz area The file has been transferred Click the back Firmware Update link Click the Execute button in the Step 1 fl...

Page 100: ...splayed in a message window You will know when this operation is complete because a message done file ramdisk gz removed will be output and a link back Firmware Update is provided Click the back Firmw...

Page 101: ...n Network Settings Copyright Symeo 2012 Page 101 of 132 Click the Browse button in the Step 2 flash zImage area A file browser window will open Navigate to the file you want and click Open Click the U...

Page 102: ...umentation Network Settings Copyright Symeo 2012 Page 102 of 132 The file has been transferred Click the back Firmware Update link Click the Execute button in the Step 2 flash zImage area to transfer...

Page 103: ...peration is complete because a message done file zImage removed will be output and a link back Firmware Update is provided Click the back Firmware Update link 9 6 3 Step 3 User space optional This ste...

Page 104: ...ess which iss et the tot he default value 192 168 1 99 Symeo recommends restoring the factory settings after a firmware update and reenter the customer settings 9 7 System Log With this function you c...

Page 105: ...Copyright Symeo 2012 Page 105 of 132 Click System Log in the navigation bar If you have not yet provided authentication information you will be prompted to do so now The last 10 system messages will b...

Page 106: ...output only the required data Therefore you can use also a slower data interface when using less data The protocol is unidirectional The LPR 2D system sends data to the user but the LPR 2D system doe...

Page 107: ...n data field POSITION only valid positions are sent LOCKSTATE 2 If there is no valid position available no protocol output is generated even if other data available e g system errors If the default co...

Page 108: ...ible to detect the beginning of the data packet If the protocol is used with a TCP IP interface the first data packet is first sent when the socket is connected The first byte of the socket is always...

Page 109: ...unction with 0x20 which will restore the original symbol The byte stuffing can only be used for the binary format of the 2D protocol It is activated per default If you want to disable byte stuffing yo...

Page 110: ...START and END included in each data packet each data field can be enabled and disabled by the user The unit of data length is one byte 10 2 4 1 START The data field START indicates the beginning of a...

Page 111: ...he clock is set to 1 1 1970 00 00 00 at each reboot e g if FusionEngine is running on ARM9 Name Length Type Description TS SEC 4 unsigned int Number of seconds since 01 01 1970 00 00 00 TS MSEC 2 unsi...

Page 112: ...possible to identify if the vehicle is moving forward or backward Name Length Type Description VEL X 4 signed int Signed velocity in x direction in mm s VEL Y 4 signed int Signed velocity in y direct...

Page 113: ...stimated error of velocity in x direction in mm s VEL ERR VY 4 unsigned int estimated error of velocity in y direction in mm s Entire length of data packet 8 Byte This data field can be activated in t...

Page 114: ...CODE 2 1 unsigned int Error code of 2nd error ERROR VALUE 2 2 unsigned int Error value of 2nd error ERROR CODE 3 1 unsigned int Error code of 3rd error ERROR VALUE 3 2 unsigned int Error value of 3rd...

Page 115: ...ven as 10 in this format means unknown e g in case of hardware failure Entire length of data packet 3 Byte This data field can be activated in the configuration file via the following line SendSatelli...

Page 116: ...y of characters If less numbers are required for the value the value has to be filled by zeros Integer values exist as well as floating point numbers The numbers in each data field are described as fo...

Page 117: ...data fields The data fields START and END cannot be deactivated All other data fields can be enabled and disabled in the configuration file 10 3 3 Data fields In this chapter all data fields are desc...

Page 118: ...et 1 Byte 10 3 3 3 TIMESTAMP This data field specifies the time when a position was taken Due to the calculation time for the position this time is always in the past If the hardware does not have a b...

Page 119: ...ble 2 Position is reliable Character coding UNDERLINE 1 Underline character ASCII Code 0x5F Entire length of data packet 26 Byte This data field is enabled in the default configuration It can be deact...

Page 120: ...ATION This data field indicates the orientation of the vehicle The angle is measured counter clockwise beginning at the x axis Name Length Description O 1 ASCII character o ANGLE 3 Orientation of vehi...

Page 121: ...ERR X 5 Estimated error of velocity in x direction in m s Character coding UNDERLINE 1 Underline character ASCII Code 0x5F EVY 3 ASCII string evy POS ERR Y 5 Estimated error of velocity in y directio...

Page 122: ...th of data packet 21 Byte This data field can be activated in the configuration file via the following line SendUserData 1 10 3 3 11 SYSTEM ERROR This data field provides information about possible er...

Page 123: ...hapter 10 6 If there are more than five errors the special error 0xff is sent as the ERROR CODE 5 This data field can be enabled by the following instruction in the configuration file SendSystemError...

Page 124: ...ated Once the bit mask is configured each data packet has the same length and the same structure Therefore the value of the bit mask SELECTED FIELDS is constant By evaluation of the bit mask at the re...

Page 125: ...s of the data packet except the data field START Example source code for CRC calculation in C Holds a table to calculate crc16 values static Uint16 crc_table 256 Initializes the CRC table MUST BE RUN...

Page 126: ...code 0xff This error is sent if more than 5 errors appear at the same time Therefore not all error codes can be transmitted This special error code is only sent for the last error code of the system f...

Page 127: ...re successfully measured in at least 5 position bins per measured basestation antenna and the observed transponder was not measured in any position bin we assume the transponder is broken The error va...

Page 128: ...0xff more than five errors active There are currently more than five errors active The error value is set to 0xffff 10 6 3 LPR B address LPR B station addresses are completely defined by a 16 bit valu...

Page 129: ...ed including interference that may cause undesired operation Installation All installation repair and servicing work must be carried out by qualified and trained technicians Repairs Repairs to the dev...

Page 130: ...included in this list are strictly prohibited for use with this device Only antenna cables delivered by Symeo are allowed to use Usage of other antenna cables may void the FCC authorization to operate...

Page 131: ...te this equipment Canada Industry Canada This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme la norme NMB 003 du Canada For Compact Statio...

Page 132: ...05mm B 305mm d 25mm Antenna Connector Type N Antenna Connector Type N Antenna Connector Type N 13 dBi Sector Antenna horizontal 180 3 dB 0 dB 3 dB A d B A 500mm B 90mm d 80mm vertical 5 3 dB 0 dB 3 dB...

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