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6.2. AIM+: USING THE SPECTRUM ANALYZER TO

DETECT AND MITIGATE INTERFERENCE

6.2.2 Wideband interference mitigation

Wideband interference of GNSS signals can be caused unintentionally by military and civilian
ranging and communication devices. There are also intentional sources of interference from
devices such as chirp jammers. The wideband interference mitigation system (WBI) of the
AsteRx-U3 can reduce the eﬀect of both types of interference on GNSS signals.

Conﬁguring WBI mitigation

The wideband interference mitigation system (WBI) can be enabled by selecting ‘on’ as shown
in Figure 6-5.

Figure 6-5:

Select ‘on’ to enable wideband interference mitigation then ‘OK’ to

apply the new setting.

WBI mitigation in action

The GPS L1 band interference shown in Figure 6-6 is produced by combining the GNSS
antenna signal with the output from an in-car GPS chirp jammer.

Figure 6-6:

Simulated wideband interference in the GPS L1 band using an in-car

chirp jammer.

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Содержание AsteRx-U3

Страница 1: ...AsteRx U3 User Manual ...

Страница 2: ...for illustration purpose only and actual product may vary due to product evolution While we try to keep the manual as complete and up to date as possible it may be that future features functionality or other product speciﬁcations change without prior notice or obligation The information contained in this manual is subject to change without notice We recommend you to look for new or updated informa...

Страница 3: ...Quick start 18 3 1 POWERING THE ASTERX U3 18 3 2 CONNECTING AN ANTENNA 19 3 3 CONNECTING TO THE ASTERX U3 VIA THE WEB INTERFACE 19 3 3 1 Using the USB cable 19 3 3 2 Using the Ethernet cable 21 3 4 HOW TO CONFIGURE SBF AND NMEA OUTPUT 22 3 4 1 Output over a serial COM connection 22 3 4 2 Output over Ethernet 27 3 5 HOW TO CONFIGURE CAN OUTPUT 31 3 5 1 Supported NMEA2000 and J1939 CAN messages 32 4...

Страница 4: ...6 7 Receiver Administration Operations 67 7 1 HOW TO CHANGE IP SETTINGS OF THE ASTERX U3 67 7 2 HOW TO CONFIGURE DYNAMIC DNS 68 7 3 HOW TO CONTROL ACCESS USING THE ASTERX U3 FIREWALL 69 7 4 HOW TO UPGRADE THE FIRMWARE OR UPLOAD A NEW PERMISSION FILE 70 7 5 HOW TO SET THE ASTERX U3 TO ITS DEFAULT CONFIGURATION 72 7 6 HOW TO RESET THE ASTERX U3 72 7 7 HOW TO COPY THE CONFIGURATION FROM ONE RECEIVER ...

Страница 5: ...e radio interference in which case the user may be required to take adequate measures 1 1 2 ROHS WEEE Notice The AsteRx U3 receivers are compliant with the latest WEEE RoHS and REACH directives For more information see www septentrio com en environmental compliance 1 1 3 Safety information The power supply provided by Septentrio if any should not be replaced by another If you are using the receive...

Страница 6: ...ould be installed in a restricted access area and used by skilled or instructed personnel 1 1 4 Support For ﬁrst line support please contact your AsteRx U3 dealer Further information can be found on our website or by contacting Septentrio Technical Support http www septentrio com Headquarters Septentrio NV Phone 32 16 300 800 Greenhill Campus HQ Fax 32 16 221 640 Interleuvenlaan 15i sales septentr...

Страница 7: ... Integrated cellular modem Bluetooth WiFi and UHF radio options 2 1 1 GNSS 544 hardware channels Up to 100 Hz Raw data output code carrier navigation data Up to 100 Hz SBAS DGNSS and RTK positioning A Posteriori Multipath Estimator Technique APME including code and phase multipath mitigation AIM interference unit mitigates against wide and narrow band interference IONO Advanced scintillation mitig...

Страница 8: ...ght 1 1 kg Input voltage 9 48 V DC Power consumption 8 W typical PoE Input voltage 37 57 V DC Temperature Range 30 to 65 C operational 40 to 75 C storage Ingress Protection IP68 Humidity IEC60721 3 5 Class 5K2 Dust MIL STD 810H Method 510 7 Procedure I Shock MIL STD 810H Method 516 8 Procedure I II Vibration MIL STD 810H Method 514 8 Procedure I Corrosion IEC60068 2 52 Method 2 8 ...

Страница 9: ... ANNUNR Dual antenna GNSS receiver Integrated UHF modem AsteRx U3 ANEUNR Dual antenna GNSS receiver Integrated 4G Cellular modem Integrated UHF modem AsteRx U3 ANEKNR Dual antenna GNSS receiver for the Korean market Integrated 4G Cellular modem Integrated UHF modem AsteRx U3 AWNUNR Dual antenna GNSS receiver Integrated Wi Fi modem Integrated Bluetooth modem Integrated UHF modem 9 ...

Страница 10: ... panel The front panel layout of the AsteRx U3 integrating Bluetooth Wi Fi and Cellular antenna connectors is shown in Figure 2 1 Depending on the conﬁguration some connectors may be present or not on the device Figure 2 1 AsteRx U3 front panel layout 10 ...

Страница 11: ...e Blinking quickly Error not connected green Oﬀ Not logging On Logging active disk is mounted Blinking slowly Logging active disk space is low Blinking quickly Disk is full or not mounted green Oﬀ No reception of correction data Blinking Blinks on reception of correction data green Oﬀ No PVT available On PVT available green Oﬀ UHF radio modem disabled or no data transferred Blinking Data package s...

Страница 12: ...ove the SIM card while the unit is powered down AsteRx U3 accepts a nano SIM 4FF required for the operation of the integrated cellular modem The SIM card can be inserted into the SIM connector in the front panel of the AsteRx U3 as shown in Figure 2 3 Remove the SIM connector cap by unscrewing it then insert the SIM card until it is locked in place Close the SIM connector cap carefully making sure...

Страница 13: ...ions When installed in vehicles the unit should be properly secured to avoid injuries or damaging the receiver or nearby equipment Select a mounting location that allows enough space to access the front and rear panel of the AsteRx U3 Make sure the receiver and the cables will not be damaged for example by moving parts or sharp edges Make sure the conditions at the installation location never exce...

Страница 14: ...2 3 ASTERX U3 DESIGN Figure 2 4 Mounting brackets ﬁtted to the AsteRx U3 14 ...

Страница 15: ... ASTERX U3 DESIGN 2 3 6 Internal memory The AsteRx U3 has 16 GB of internal memory for data logging Data can be logged in SBF or NMEA format and may be retrieved via the logging tab of the web interface 15 ...

Страница 16: ...pplied as standard with AsteRx U3 2 4 2 Optional items The following accessories can be ordered with AsteRx U3 Figure 2 6 Power cable M12 to DC jack 5 5mmx2 1mm 1 3m 216203 Figure 2 7 Ethernet cable M12 to RJ45 2m 216204 Figure 2 8 USB Cable M8 to USB Type A 1m 216207 Figure 2 9 COM2 Serial Cable M12 to DB9 female 1 8m 216205 16 ...

Страница 17: ...NC male 1 5m 216206 Figure 2 11 COM1 Serial Cable M8 to DB9 female 1 8m 216208 Figure 2 12 COM1 and COM3 Serial Cable M8 to 2x DB9 female 1 8m 216209 Figure 2 13 CAN and Event Cable M8 unterminated 3m 216210 Figure 2 14 Power cable M12 unterminated 3m 216214 17 ...

Страница 18: ...interface properly 3 1 Powering the AsteRx U3 Using a power cable the receiver can be powered by applying 9 to 48 V via the power in wire The power socket is indicated in Figure 3 1 Figure 3 1 Rear panel power socket AsteRx U3 can also use Power over Ethernet 802 3af mode A 37 57 VDC by using the ETH socket Figure 3 2 Rear panel ETH socket The AsteRx U3 does not have a power button and the unit wi...

Страница 19: ...ain and auxiliary antenna connectors 3 3 Connecting to the AsteRx U3 via the Web Interface You can connect to the receiver on any device that supports a web browser using the receiver s on board Web Interface The connection can be made using either USB or Ethernet The following sections describe each of the connection methods 3 3 1 Using the USB cable Connect the USB cable to the connector labeled...

Страница 20: ...er driver installation The USB connection on the AsteRx U3 functions as network adapter and the DHCP server running on the receiver will always assign the AsteRx U3 the IP address 192 168 3 1 To connect to the AsteRx U3 you can then simply open a web browser using the IP address 192 168 3 1 as shown in Figure 3 6 Figure 3 6 Connect to the Web Interface of the AsteRx U3 over USB using the IP addres...

Страница 21: ...t to the AsteRx U3 By default the AsteRx U3 has the hostname http AsteRx U3 xxxxxxx where xxxxxxx are the last 7 digits of the AsteRx U3 serial number This hostname can be used on a local area network to connect to the AsteRx U3 if the IP address assigned by the DHCP server is unknown The serial number can be found on a sticker on the corner of the outer casing of the receiver Figure 3 8 shows a s...

Страница 22: ...d data 3 4 1 Output over a serial COM connection The AsteRx U3 can be connected via a serial COM cable to an RS 232 compatible secondary device Step 1 Conﬁgure the serial COM port The COM port of the AsteRx U3 should be conﬁgured with the same baud rate and ﬂow control setting of the coupled device These settings can be conﬁgured via the Communication tab as shown in Figure 3 9 In this example COM...

Страница 23: ...MEA In the NMEA SBF Out tab clicking on New NMEA Stream will guide you through the steps needed to conﬁgure NMEA output as shown in Figures 3 10 and 3 11 Figure 3 10 Selecting to output NMEA data on COM3 Figure 3 11 Selecting to output the GGA NMEA message every second 23 ...

Страница 24: ... SBF By clicking New SBF stream a second output stream can be conﬁgured In the example shown in Figures 3 12 and 3 13 the PVTCartesian SBF data block will be output over COM1 once per second Figure 3 12 Selecting to output SBF data on COM1 24 ...

Страница 25: ...3 4 HOW TO CONFIGURE SBF AND NMEA OUTPUT Figure 3 13 Selecting to output the PVTCartesian SBF block every second 25 ...

Страница 26: ...ure 3 14 Figure 3 14 Summary of all conﬁgured data output streams Figure 3 15 shows the actual data output NMEA is in ASCII and is thus readable unlike SBF which is formatted in binary In this example the serial COM was connected to a PC via a USB adapter which maps the serial connection to a virtual COM9 of the PC Figure 3 15 Example showing output NMEA GGA left panel and SBF PVTCartesian right p...

Страница 27: ...e 3 16 port 28785 has been conﬁgured as connection IPS1 in TCP2Way mode so data can be received as well as transmitted over the connection It is advisable to select a higher range port to avoid those reserved for other purposes such as the webserver and FTP Also port 28784 is reserved by default on the AsteRx U3 for commands Note that a new IP port can also be conﬁgured by followings the sequence ...

Страница 28: ...stream and follow the sequence of windows to conﬁgure the data you want to output In the example shown in Figure 3 17 the NMEA GGA message will be output every second Ensure that the previously conﬁgured IPS1 port is selected for output as highlighted Figure 3 17 Select to output NMEA GGA over the conﬁgured IPS1 connection 28 ...

Страница 29: ...e TCP IP Client button to conﬁgure the connection In the highlighted ﬁelds insert the IP address or hostname of the receiver and the port number conﬁgured in Step 1 Click on Connect Figure 3 18 Conﬁgure the TCP IP connection settings in Data Link The info line at the bottom of the window should indicate that a connection has been made Click on the Show Data button to display the GGA data from the ...

Страница 30: ...3 4 HOW TO CONFIGURE SBF AND NMEA OUTPUT Figure 3 19 The Show data window of Data Link showing GGA from the AsteRx U3 30 ...

Страница 31: ...upport for the NMEA2000 and or J1939 standards can be turned on or oﬀ Every piece of equipment in the CAN network needs to have a source address NMEA2000 uses address claiming whereby the ﬁrst available address is assigned automatically to the piece of equipment on the CAN network By default the address from which the query for available addresses is started is zero but it can also be set to anoth...

Страница 32: ...EA2000 COG and SOG Rapid Update 20Hz Detailed descriptions of the PGN messages are found in the NMEA2000 speciﬁcation which can be purchased directly from the National Marine Electronics Association Messages PGN129028 and PGN129027 are special messages which depend on PGN129029 These messages contain delta values which can be used to calculate the current position latitude longitude altitude and t...

Страница 33: ... NMEA2000 messages listed earlier the receiver also supports a number of proprietary messages It should be noted that due to the restrictive nature of the NMEA2000 format these messages follow the SAE J1939 standard Message Description Max update rate 65419 Altitude 20Hz 65420 Latitude 20Hz 65421 Longitude 20Hz 33 ...

Страница 34: ...io When GSM GPRS network coverage is either sparse or unreliable RTK correction data can be transmitted over UHF radio The AsteRx U3 has a built in Satel radio modem that can be used to both receive and transmit data Step 1 Enable RTK mode RTK should be enabled as a positioning mode This can be done in the GNSS Position window by checking the RTK box in the Position Mode ﬁeld as shown in Figure 4 ...

Страница 35: ...d signal protocol of the transmitted data error correction method FEC of the transmitted data Figure 4 2 Conﬁguring the built in UHF radio for rover operation After changing the settings click on OK to ﬁnalize the settings Each time the conﬁguration is changed a pop up in the lower right hand corner will prompt you to save the new conﬁguration as the boot conﬁguration Clicking on Save will cause t...

Страница 36: ...laced by a live green line as shown in Figure 4 3 The message format of the diﬀerential corrections will appear next to the right hand base station icon RTCMv3 in this example All being well the positioning mode icon in the upper status ﬁeld should also indicate RTK Fixed after a few seconds Figure 4 3 The AsteRx U3 in RTK mode using diﬀerential correction data from a base station transmitting ove...

Страница 37: ...de using the cellular modem and NTRIP Step 1 Enable RTK mode Ensure that RTK is be enabled as a positioning mode This can be done in the GNSS Position tab by checking the RTK box in the Position Mode ﬁeld as shown in Figure 4 4 Figure 4 4 Ensure that RTK has been enabled as a positioning mode 37 ...

Страница 38: ...n the Communication Cellular window as shown in Figure 4 5 A PIN number may or may not be required depending on the SIM conﬁguration In the Cellular Conﬁguration ﬁeld the Access Point Name APN should be inserted with other ﬁelds being optional Figure 4 5 Conﬁguring the cellular modem Click on Ok and if the settings are correct the cellular graphic should appear as shown in Figure 4 6 The connectio...

Страница 39: ...4 1 HOW TO CONFIGURE THE ASTERX U3 FOR RTK Figure 4 6 Correctly conﬁgured cellular modem 39 ...

Страница 40: ...the NTRIP service NTRIP Casters typically provide multiple correction data streams known as Mount Points When a connection has been made to the Caster the Mount Point drop down list will become active In this example the FLEPOS_HOEG stream has been selected the details of which are shown in Figure 4 8 When using correction data from a virtual base station it is often necessary to provide your posi...

Страница 41: ...e conﬁguration When both the cellular modem and NTRIP connection have been correctly conﬁgured the Ntrip ﬁgure in Corrections NTRIP window will indicate diﬀerential correction reception as shown in Figure 4 9 with the positioning mode icon indicating RTK ﬁxed Figure 4 9 Correctly conﬁgured NTRIP connection 41 ...

Страница 42: ...n RTK base station Conﬁgure the Ethernet connection and diﬀ corr output from the Base station receiver In the Corrections Output window click on New RTCM3 output to start the sequence of steps to conﬁgure the RTK diﬀerential corrections stream and Ethernet connection over which the diﬀ corr will be sent In the example shown in Figure 4 10 RTCMv3 correction data are sent out over port 28785 The RTC...

Страница 43: ...4 1 HOW TO CONFIGURE THE ASTERX U3 FOR RTK Figure 4 10 Click on New RTCM3 output to conﬁgure RTK diﬀ corr output over an Ethernet connection 43 ...

Страница 44: ... in Figure 4 11 Figure 4 11 Ensure that RTK is enabled as a positioning mode Conﬁgure the Ethernet connection of the rover receiver On the IP Ports window of the rover receiver click on New IP Receive Connection as shown in Figure 4 12 to start conﬁguration sequence The Port and TCPAddress should match the port and IP address of the Base station receiver Figure 4 12 In the IP Ports window click on...

Страница 45: ...Communication Ethernet windows should appear similar to those shown in Figures 4 13 and 4 14 Figure 4 13 Ethernet window of the Base station receiver showing the position as static and an active output of RTCMv3 diﬀ corr on server port IPS1 Figure 4 14 Ethernet tab of the rover receiver showing a ﬁxed RTK position and reception of RTCMv3 diﬀ corr on receiver port IPR1 45 ...

Страница 46: ...he AsteRx U3 the receiver can calculate Heading and either Pitch or Roll This section details how to conﬁgure the AsteRx U3 in a two antenna setup Step 1 Connect a second antenna Connect a second antenna to the rear panel connector labeled AUX and indicated in Figure 4 15 Figure 4 15 Auxiliary antenna connector on rear panel 46 ...

Страница 47: ...mode with attitude calculated using Fixed ambiguities as shown These setting are conﬁgured by default Antenna Location and Antenna Oﬀset The AsteRx U3 assumes that the main and auxiliary antennas are placed along the longitudinal axis of the vehicle with the auxiliary in front of the main antenna If the antennas cannot be placed in such a conﬁguration the reported heading and pitch may be biased T...

Страница 48: ...d EndOfAtt These blocks are selected automatically when checking the Attitude box when conﬁguring SBF output via the NMEA SBF Out window as Figure 4 17 shows Figure 4 17 SBF blocks containing attitude information NMEA You can output the attitude information from the AsteRx U3 in NMEA format by selecting the standard NMEA HDT sentence or the Septentrio proprietary HRP sentence as shown in Figure 4 ...

Страница 49: ...lled PPS GPO and indicated in Figure 4 19 Figure 4 19 PPS connector on rear panel Step 2 Conﬁgure the PPS settings You can conﬁgure the PPS settings on the PPS Timing window on the GNSS menu as shown in Figure 4 20 Figure 4 20 The GNSS PPS Timing window The Interval is the time interval between successive timing pulses and is selectable between 10ms and 10s The default Polarity of the PPS signal i...

Страница 50: ...r than RxClock the accuracy of the time of the PPS pulse depends on the age of the last PVT computation During PVT outages the PPS generation time which is extrapolated from the last available PVT information may start to drift To avoid large biases the receiver stops outputting the PPS pulse when the last available PVT is older than the speciﬁed MaxSyncAge The MaxSyncAge is ignored when TimeScale...

Страница 51: ...ay show more variation The Static position mode can be selected in the Position window of the GNSS menu as shown in Figure 5 1 Figure 5 1 Setting the AsteRx U3 base station position to static Set the correct position An accurate position of the antenna that is connected to the AsteRx U3 should also be set The default setting of auto can be used for demonstrations however for most other purposes a ...

Страница 52: ...tion coordinates Figure 5 2 Setting the static position to the pre set Geodetic1 position Click OK to apply the new settings Step 2 Conﬁgure output of diﬀerential corrections Selecting the correction format and connection type Output of diﬀerential corrections can be conﬁgured in the Corrections Output window as Figure 5 3 shows Click on New RTCM3 output to start the sequence of conﬁguration steps...

Страница 53: ...and at a power of 100 mW1 The transmission protocol and error method can also be selected on this page as shown The frequency and bandwidth are conﬁgured via the Advanced Settings menu Note that the baud rate of the connection depends on the Protocol and Bandwidth settings as given in Appendix 9 2 Figure 5 4 Conﬁguring the UHF radio 1 Please note that depending on your location you may be prohibit...

Страница 54: ...tion If the UHF radio has been correctly conﬁgured the transmission line in the top panel should change to green as shown in Figure 5 5 The format of the corrections stream should also be correctly identiﬁed along with the data rate Figure 5 5 The UHF radio conﬁgured to transmit RTCMv3 diﬀ corr at 410 MHz 54 ...

Страница 55: ...red in the NTRIP Caster window from the Communication menu Step 1 Deﬁne a new mount point Figure 5 6 The conﬁguration sequence for deﬁning a new mount point In the NTRIP Caster window click on the Settings tab In the General Settings ﬁeld enable the NTRIP Caster and select the IP port over which you wish to send correction data the default port is 2101 Click on New mount point as indicated in Figu...

Страница 56: ...re the credentials needed for the NTRIP client rover to access the correction stream In the Client Users section click on New User as shown in Figure 5 7 Enter a User Name and Password for the user and select the mount points that they will have access to Up to 10 NTRIP clients can log in as a particular user Click Ok to apply the settings Figure 5 7 Conﬁguring the login credentials for a user Ste...

Страница 57: ... Corrections NTRIP clicking New NTRIP client and entering its IP address and Port as shown in Figure 5 9 After clicking Ok the mount point source table will be ﬁlled and a mount point can be selected The user name and password can then be entered and within a few seconds the rover receiver should report an RTK ﬁxed position Figure 5 9 Connecting as a client to the AsteRx U3 NTRIP Caster 57 ...

Страница 58: ... of the AsteRx U3 s operational status Figure 6 1 Overview page of the web interface The main information bar at the top of the window gives some basic receiver information receiver type serial number and position The length of time since the last power cycle Uptime and the attitude when a second antenna is connected are also given 58 ...

Страница 59: ...PVT A green line indicates that at least one satellite in the constellation is being used in the PVT a blue line indicates that satellites are being tracked but not used and a grey line that there are no satellites from that particular constellation in tracking More information can found in the Satellites and Signals page on the GNSS menu The UHF DiﬀCorr ﬁeld shows the diﬀerential correction forma...

Страница 60: ...erference The eﬀects of wideband interference both intentional and unintentional can be mitigated by turning on the WBI mitigation system The WBI system also reduces more eﬀectively than traditionally used pulse blanking methods the eﬀects of pulsed interferers The spectrum view plot In the Spectrum window of the GNSS menu you can monitor the RF spectrum and conﬁgure three separate notch ﬁlters to...

Страница 61: ...erence In manual mode as shown conﬁgured for Notch1 in Figure 6 3 the region of the aﬀected spectrum is speciﬁed by a center frequency and a bandwidth which is eﬀectively blanked by the notch ﬁlter Figure 6 3 Conﬁguring the ﬁrst notch ﬁlter Notch1 at 1235 MHz With the Notch1 settings as shown in Figure 6 3 the L2 band after the notch ﬁlter After IM is shown in Figure 6 4 with the blanked section c...

Страница 62: ...of the AsteRx U3 can reduce the eﬀect of both types of interference on GNSS signals Conﬁguring WBI mitigation The wideband interference mitigation system WBI can be enabled by selecting on as shown in Figure 6 5 Figure 6 5 Select on to enable wideband interference mitigation then OK to apply the new setting WBI mitigation in action The GPS L1 band interference shown in Figure 6 6 is produced by co...

Страница 63: ...requency of 1575 MHz is clearly visible as Figure 6 7 shows In this particular test the interference signal caused the receiver to fall back to the less precise DGNSS or standalone positioning modes With WBI mitigation enabled however the receiver was able to maintain an RTK ﬁx position throughout Figure 6 7 Enabling WBI interference mitigation greatly reduces the eﬀect of the interference caused ...

Страница 64: ...select the SBF blocks you wish to log By selecting Support as shown in Figure 6 8 the most useful SBF blocks for problem diagnosis will be automatically selected Click OK then turn on logging Again click OK to start data logging Figure 6 8 Click on New SBF stream and select Support Please note that logging the Support data blocks requires a large throughput of data that may not be compatible with ...

Страница 65: ...tive logging session Step 2 Downloading the logged SBF ﬁle To download a data ﬁle logged on the AsteRx U3 click the download icon next to the ﬁlename on the Disk Contents tab as shown in Figure 6 10 Figure 6 10 Click the icon next to the ﬁle you want to download 65 ...

Страница 66: ... Receiver Messages window of the Admin menu that can be used to check receiver operations The example in Figure 6 11 shows that four 15 minute SBF ﬁles have been successfully FTP pushed to a remote location Figure 6 11 Events reported by the AsteRx U3 in the Receiver Messages window 66 ...

Страница 67: ... also be conﬁgured as shown in Figure 7 1 In Static mode the receiver will not attempt to request an address via DHCP but will use the speciﬁed IP address netmask gateway domain name and DNS DNS1 is the primary DNS and DNS2 is the backup DNS In DHCP mode the arguments IP Netmask Gateway Domain DNS1 and DNS2 are ignored Figure 7 1 Conﬁguring a static IP address The new IP address should now appear ...

Страница 68: ... may change over time resulting in a loss of connection Dynamic DNS DynDNS or DDNS is a service that addresses this problem by linking a user deﬁned hostname for the device to whichever IP address is currently assigned to it To make use of this feature on the AsteRx U3 you should ﬁrst create an account with a Dynamic DNS provider dyndns org or no ip org to register a hostname for your receiver In ...

Страница 69: ...IP Ports menu In the example shown in Figure 7 4 Ethernet ports 2101 2102 and 2103 are accessible but only from devices with the IP address 84 199 9 148 Similarly all WiFi ports are open but only those from IP 84 199 9 148 No access is possible via cellular ports Please note that the ﬁrewall settings do not apply when connecting to the web interface using USB In the case of WiFi ﬁrewall settings o...

Страница 70: ...as shown in the steps below Firmware upgrades can be downloaded from the Septentrio website and are free for the lifetime of the receiver Step 1 Select the suf ﬁle and start upgrade The upgrade procedure is started by clicking on Choose ﬁle in the Admin Upgrade tab as shown in Figure 7 5 Figure 7 5 The AsteRx U3 upgrade window After saving the suf ﬁle to your PC you can then select this ﬁle start ...

Страница 71: ...2 Verifying the upgrade If there were no problems with the upgrade the message Upgrade successful will appear You can then check on the Admin About tab that the AsteRx U3 ﬁrmware or permission ﬁle has correct new version as indicated in Figure 7 7 Figure 7 7 Checking the ﬁrmware and permission ﬁle versions 71 ...

Страница 72: ... Setting the AsteRx U3 to the default conﬁguration Please note that this procedure will not erase the IP settings of the receiver This can only be done on the Ethernet page of the Communication menu 7 6 How to reset the AsteRx U3 If the AsteRx U3 is not operating as expected a simple reset may resolve matters Via the Admin Reset tab as shown in Figure 7 9 diﬀerent functionalities can be individual...

Страница 73: ...lick the green download arrow next the conﬁguration you wish to download as shown in Figure 7 10 The conﬁguration will be saved as a txt ﬁle in the same downloads location used by the internet browser Figure 7 10 Downloading a conﬁguration from an AsteRx U3 Step 2 Uploading the conﬁguration to a second AsteRx U3 Click on the blue upload arrow as indicated in Figure 7 11 to upload a conﬁguration ﬁl...

Страница 74: ...O COPY THE CONFIGURATION FROM ONE RECEIVER TO ANOTHER Select the conﬁguration ﬁle to be uploaded then click on OK on the status pop up as shown in Figure 7 12 Figure 7 12 Select the conﬁguration ﬁle to upload 74 ...

Страница 75: ...ss as shown in Figure 8 1 User level allows full control of the receiver while Viewer level only allows monitoring the receiver and viewing its conﬁguration Figure 8 1 The default access levels of the AsteRx U3 8 2 Deﬁning user access to the AsteRx U3 You can add users and deﬁne their access levels by clicking on the New user button as shown in Figure 8 2 You can also deﬁne the default access when...

Страница 76: ...face as Viewers They can browse the various windows but cannot change any of the settings Only George who has User access can change receiver settings via the web interface FTP Anonymous users have full access to the disk over FTP so can download and delete logged data ﬁles IP COM USB and Bluetooth Ports Only George has User access to the IP COM USB and Bluetooth ports so can change receiver setti...

Страница 77: ...ous users have full access over FTP SFTP and rsync to the ﬁles logged on the AsteRx U3 FTP SFTP and rsync access can be limited by conﬁguring user access as described in Section 8 1 For added security user authentication for SFTP and rsync access can be conﬁgured using an SSH public key When an SSH key is deﬁned the conﬁgured user can download ﬁles using SFTP or rsync without entering a password p...

Страница 78: ...ncryption is also supported 8 4 HTTP HTTPS By default both http and https are enabled however http and or https access to the receiver can be disabled through the web interface by going to the Communication Web Server page or using the setHttpsSetting command Secure http access requires the user to provide a certiﬁcate to the receiver which can be done by again navigating to the Communication Web ...

Страница 79: ...8 4 HTTP HTTPS Figure 8 7 Uploading a certiﬁcate to the receiver 79 ...

Страница 80: ...d together internally 3 Ground 4 Ground PINs 3 and 4 shorted together internally 9 1 2 Ethernet ETH Figure 9 2 8 pin female socket pin numbering guide as viewed end on PIN Name Comment 1 TxD Ethernet 10 100 TX 2 TxD Ethernet 10 100 TX 3 RxD Ethernet 10 100 RX 4 RxD Ethernet 10 100 RX 5 Power_IN 6 Power_IN PINs 5 and 6 shorted together internally 7 Ground 8 Ground PINs 7 and 8 shorted together inte...

Страница 81: ... D USB 2 0 data signal positive D 2 USB V USB Power Cannot be used to power the receiver 3 USB D USB 2 0 data signal positive D 4 Ground 9 1 4 General Purpose Interface GPI Figure 9 4 6 pin female socket pin numbering guide as viewed end on PIN Name Comment 1 CAN H CAN high 2 CAN L CAN low 3 Reserved 4 Reserved 5 Reserved 6 Ground 81 ...

Страница 82: ... mode RS422 mode Comment 1 RX1 RX1 2 RX3 RX1 3 TX1 TX1 4 TX3 TX1 5 Reserved Reserved 6 Ground Ground 9 1 6 Serial COM2 Figure 9 6 8 pin female socket pin numbering guide as viewed end on PIN RS232 mode RS422 mode Comment 1 RTS2 TX2 2 RX2 RX2 3 CTS2 RX2 4 5V Out 5V Out 5 PPS Out PPS Out 6 Ground Ground 7 TX2 TX2 8 Ground Ground 82 ...

Страница 83: ...greater the lowest baud rate conﬁgurations 9600 and 4800 baud may not be suﬃcient and you should select a protocol bandwidth combination for 19200 baud For diﬀ corr rates of 0 5 Hz and less a 9600 baud setting is suﬃcient Protocol Modulation Forward Error Correction Default baud rate 12 5kHz Default baud rate 25kHz PCCGMSK GMSK always on 4800 bps 9600 bps PCC4FSK 4FSK always on 9600 bps 19200 bps ...

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