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51

GPStation-6 User Manual Rev 2

Commands

4.2.5

ISMSIGNALCONTROL Controls GISTM log output

This command allows the user to control which signals from which satellite systems are used in the
scintillation measurements and output in the GISTM logs.

All available signals types are enabled by default for raw scintillation measurement and TEC output.

For some applications, you may want to reduce the amount of data being output by the receiver. Use
this command to customize the output by enabling or disabling specific signal types from being output
in the GISTM logs.

The raw measurement output control parameter affects the ISMRAWOBS, ISMDETOBS, and
ISMREDOBS logs. The TEC output control parameter affects the ISMRAWTEC and ISMREDTEC
logs. If a primary signal, such as GPSL1CA is disabled for TEC output, all the associated TEC
combinations are also disabled (e.g., GPSL1CA-GPSL2PY, GPSL1CA-GPSL5, and GPSL1CA-
GPSL2C).

Abbreviated ASCII Syntax:

Message ID: 1398

ISMSIGNALCONTROL signal obs_control TEC_control

Input Example:

ismsignalcontrol glol1ca disable disable



L2P(Y) scintillation measurements and observations are disabled by default.

L2P(Y) is an encrypted signal and is therefore tracked using a proprietary semi-codeless
technique. This results in increased noise on the signal and therefore L2P(Y) measurements
may not be suitable for computing scinitillation phase and amplitude indices. L2P(Y) is however
suitable for TEC computations and L2P(Y) TEC computations are enabled by default.

Field

Field Type

ASCII
Value

Binary

Value

Description

Binary

Format

Binary

Bytes

Binary

Offset

1

ISMSIGNALCONTROL

Header

-

-

This field contains the

command name or the

message header

depending on whether

the command is

abbreviated ASCII,

ASCII or binary,

respectively

-

H

0

2

Signal Type

Signal type to configure

(refer to

Table 11, Signal

Type

)

ENUM

4

H

3

Enable observations

DISABLE

0

Do not output raw

measurement for this

signal type

ENUM

4

H+4

ENABLE

1

Enable output of raw

measurements for this

signal type

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Содержание GPStation-6

Страница 1: ...GPStation 6 GNSS Ionospheric Scintillation and TEC Monitor GISTM Receiver User Manual OM 20000132 Rev 2 November 2012 ...

Страница 2: ...nc The software described in this document is furnished under a licence agreement or non disclosure agreement The software may be used or copied only in accordance with the terms of the agreement It is against the law to copy the software on any medium except as specifically allowed in the license or non disclosure agreement No part of this manual may be reproduced or transmitted in any form or by...

Страница 3: ...es and Information 19 1 3 1 Status Indicators 20 1 3 2 10 MHz Oscillator 20 1 3 3 Mounting Bracket 20 2 Operation 21 2 1 Pre Start Checklist 21 2 2 Start Up 21 2 3 Communicating with the GPStation 6 21 2 4 Getting Started 22 2 5 NovAtel Connect 22 2 6 NovAtel SLOG Utility 24 2 7 TEC Calibration 25 2 7 1 What is TEC 25 2 7 2 How does TEC affect GNSS 25 2 7 3 Bias in TEC Measurements 26 2 7 4 Determ...

Страница 4: ...CALIBRATION Set TEC calibration value 53 4 2 7 PLLBANDWIDTH Set the phase lock loop bandwidth 54 4 2 8 SETDIFFCODEBIASES Sets satellite differential code biases 56 5 Logs 57 5 1 Log Types 57 5 1 1 Listing of GISTM Specific Logs 57 5 1 2 ISMDETOBS Detrended phase and amplitude measurements 59 5 1 3 ISMRAWOBS Raw phase and amplitude measurement 62 5 1 4 ISMRAWTEC Raw TEC measurements 64 5 1 5 ISMRED...

Страница 5: ... 2 5 List of Figures Figure1 Primary and Secondary Lightning Protection 10 Figure2 GPStation 6 Enclosure 12 Figure3 Typical Receiver Installation 17 Figure4 Ionospheric TEC Characterized 25 Figure5 TEC Before and After Example 26 ...

Страница 6: ...Type 52 Table 12 Signal Combination Code 53 Table 13 PLL Aiding Parameters 55 Table 14 Log Type Triggers 57 Table 15 GISTM Logs 57 Table 16 Legacy GSV4004B Logs 58 Table 17 Satellite System 61 Table 18 Signal Mapping for Satellite Systems 61 Table 19 Power and ADR Bit Field Description 61 Table 20 Signal Combination Type 72 Table 21 Serial Port Pin Out Descriptions 76 Table 22 I O Port Pin Out Des...

Страница 7: ...nce 2 Send the file containing the logs to NovAtel Customer Support at ftp novatel com incoming or through support novatel com 3 You can also issue a FRESET command to the receiver to clear any unknown settings If you have a hardware problem send a list of the troubleshooting steps taken and results Contact Information Use one of the following methods to contact NovAtel Customer Support The FRESET...

Страница 8: ...television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Re orient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment to an outlet on a circuit different from that to which the receiver is connected Consult th...

Страница 9: ...earth s potential which results in a high voltage potential between the centre conductor and shield of the coaxial cable This high voltage develops because the voltage surge induced onto the centre conductor lags in time behind the voltage surge induced onto the shield Hazard Impact A lightning strike causes the ground potential in the area to rise to dangerous levels resulting in harm to personne...

Страница 10: ...urge protection The primary device must be capable of limiting an incoming surge to 10 kV 5 The shield of the coaxial cable entering the building should be connected at a grounding plate at the building s entrance The lightning protection devices should have their chassis grounded to the same ground near to the building s entrance 6 The primary and secondary lightning protections should be as clos...

Страница 11: ...rical Code NFPA 70 Canada Canadian Electrical Code CSA C22 UK British Standards Institute BSI 7671 Acceptable choices for Earth Grounds for central buildings are Grounded interior metal cold water pipe within five feet 1 5 m of the point where it enters the building Grounded metallic service raceway Grounded electrical service equipment enclosure Eight foot grounding rod driven into the ground onl...

Страница 12: ...GLONASS L1 L2 Galileo E1 E5a E5b AltBOC SBAS L1 L5 COMPASS QZSS With the ability to upgrade the GPStation 6 firmware in the field additional signal support can be purchased as new signals become available As a result of this specialized integration of advanced hardware and software the GPStation 6 provides a unique platform to support local monitoring of ionospheric effects on GNSS The receiver ou...

Страница 13: ...irect upgrade and product replacement for the GSV4004B GISTM receiver a product sold and supported by GPS Silicon Valley since 2004 no longer commercially available A business partnership with GPS Silicon Valley continues via GPStation 6 consulting support The GPStation 6 combines the field proven enclosure design of the GSV4004B platform with NovAtel Inc s future proof OEM628 GNSS receiver This c...

Страница 14: ...n requirements and considerations for the GPStation 6 receiver and supporting utilities In order to operate the GPStation 6 Software Utility toolkit a Windows system is required It should be noted that the GPStation 6 receiver itself has no reliance on any operating system and that interface and data processing software can be developed on a suitable processing platform ...

Страница 15: ...tions A power supply 1 1 3 Selecting an Antenna The GPStation 6 receiver is offered in a variety of dual frequency L1 L2 L1 L5 or triple frequency L1 L2 L5 configurations Frequency support is controlled by firmware model allowing for any purchased model of the GPStation 6 receiver to be updated to triple frequency in the field If the installation only requires L1 L2 signals then a dual frequency a...

Страница 16: ... use other high quality RF cables the performance specifications of the GPStation 6 receivers are warranted only when used with NovAtel supplied accessories 1 1 5 Power Supply Requirements This section contains information on the requirements for the input power to the receiver Refer to Technical Specifications on page 73 for more power supply specifications The receiver is designed to prevent int...

Страница 17: ...on For optimal performance select a low multi path environment Connect the GNSS antenna to the receiver with an antenna RF cable refer to the antenna manual for details Connect the receiver to a computer or other data communications equipment serial cable shown Section 6 2 1 2 on page 78 A USB cable may be used instead refer to Section 6 2 2 on page 80 for cable specifics Apply power to the receiv...

Страница 18: ...s Data Terminal Equipment DTE so that TXD and RTS are outputs while RXD and CTS are inputs A null modem cable is required to connect to another DTE like a terminal or a PC COM1 also supports USB 2 0 communications A DB9 to USB communication cable is provided with the GPStation 6 for Customers wishing to use COM1 in USB communication mode To install the NovAtel USB drivers refer to Section 1 2 4 1 ...

Страница 19: ...ange the Driver Signing Policy on your computer 1 Open System in the Control Panel 2 Select the Hardware tab 3 Click Driver Signing 4 Select either Ignore or Warn in the File signature verification box 5 Click OK to accept the new policy 6 Click OK again to close the System Properties dialog 7 Unplug the NovAtel receiver USB cable plug it back in and follow the installation instructions described ...

Страница 20: ...r other external equipment The OSC port for the GPStation 6 enclosure is output only the receiver will not operate properly if a 10 MHz signal is input to this port 1 3 3 Mounting Bracket Along with the GPStation 6 enclosure a mounting kit is provided to for mounting the receivers to a surface To install the mounting bracket provided with the GPStation 6 refer to the instructions provided with the...

Страница 21: ... power to the GPStation 6 only after the above checks are made Allow the GPStation 6 internal OCXO sufficient time to warm up before starting normal operation Warm up time will vary depending on ambient temperature It is recommended to allow for least 15 minutes of OCXO warm up time from a cold start condition 2 2 Start Up The GPStation 6 s firmware resides in non volatile memory After supplying p...

Страница 22: ... tracking and logging data to file for post processing For long term data collection using the GPStation 6 it is recommended the user write their own interface software package or use the provided command line utility called SLOG refer to NovAtel SLOG Utility on page 24 for details After NovAtel Connect is downloaded and installed on your local machine launch the program and create a device connec...

Страница 23: ...stablished to your GPStation 6 receiver and basic functionality is confirmed the Console window can be used to enter configuration commands or request data logs If desired Connect can also be used to log specific GPStation 6 GISTM data to file for post processing using the Save Data feature available under the Tools menu To ensure that only the desired data logs are saved to a file first close all...

Страница 24: ...ation 6 as it was with the GSV4004B in particular due to its power and flexibility for long term data collection monitoring applications SLOG was developed by NovAtel and has been used internally for many years to support automated testing and development activities for data collection campaigns and NovAtel monitoring stations and has occasionally been provided to customers to facilitate their own...

Страница 25: ...ustom software to process and analyze the raw data as desired 2 7 TEC Calibration 2 7 1 What is TEC Total Electron Content TEC is an important descriptive quantity for the ionosphere of the Earth It is defined as the total number of electrons present along a path between two points and is significant in determining the group delay of a radio wave through a medium 1016 electrons m2 1 TEC unit TECU ...

Страница 26: ...ata using the ISMREDOBS and ISMREDTEC logs It is recommended collecting data for a period of 3 to 4 days to even out regional effects 2 Identify an optimal time window to run a calibration when absolute TEC shows minimum i e the time of day when TEC is at its minimum 3 Apply satellite biases for available signal combinations currently GPS C1P1 Example SETDIFFCODEBIASES gps_c1p1 0 207 0 043 0 623 1...

Страница 27: ...iver Use the following command to apply the results of the automatic calibration ISMTECCALIBRATION signal_combination calibration_value Example ISMTECCALIBRATION GPSL1CAL2Y 27 690591812 ISMTECCALIBRATION GLOL1CAL2P 26 807550430 ISMTECCALIBRATION GPSL1CAL2C 21 765899658 ISMTECCALIBRATION GPSL1CAL5 10 893598557 ISMTECCALIBRATION GLOL1CAL2CA 19 007484436 2 8 Data Parsing Utilities The GPStation 6 is ...

Страница 28: ...ils are provided in the following screen shot Command Line Example PARSEREDUCED R DATAFILE GPS OUTPUTFILE CSV for all GLONASS satellites 2 8 2 PARSERAW exe The PARSERAW utility is used to process the raw GISTM data logs It is executed from a command line window similar to SLOG Usage details are provided in the following screen shot Command Line Example PARSERAW G1 DATAFILE GPS OUTPUTFILE CSV for G...

Страница 29: ...e systems are output in the ISM logs Refer to the ISMSIGNALCONTROL command Section 4 2 5 on page 51 for details Example ISMSIGNALCONTROL GLOL2CA ENABLE Allows GLONASS L2 C A phase to be included in ISMRAWOBS ISMDETOBS and ISMREDOBS logs Example ISMSIGNALCONTROL GLOL2CA ENABLE ENABLE Also allows GLONASS L2 C A to be used to calculate TEC measurements between this and the satellite s primary signal ...

Страница 30: ...ated ASCII command to request an output log the message type is indicated by the character appended to the end of the message name A indicates the message requested is ASCII and B indicates binary No character means the message requested is Abbreviated ASCII When issuing binary commands the output message type is dependent on the bit format in the message s binary header refer to Binary on page 34...

Страница 31: ... for the mantissa Its range is 1 7E308 with at least 15 digits of precision This is IEEE 754 Float 4 The float type contains 32 bits 1 for the sign 8 for the exponent and 23 for the mantissa Its range is 3 4E38 with at least 7 digits of precision This is IEEE 754 Enum 4 A 4 byte enumerated type beginning at zero an unsigned long In binary the enumerated value is output In ASCII or Abbreviated ASCI...

Страница 32: ... ONNEW 0 000000 0 000000 NOHOLD COM2 RXSTATUSEVENTA ONNEW 0 000000 0 000000 NOHOLD COM3 RXSTATUSEVENTA ONNEW 0 000000 0 000000 NOHOLD COM1 LOGLIST ONCE 0 000000 0 000000 NOHOLD As you can see the array of 4 logs are offset from the left hand side and start with Table 3 shows the arrangement of bytes within each field type when used by IBM PC computers All data sent to or from the OEM6 family of re...

Страница 33: ... carriage return and line feed characters For example 1234ABCD CR LF This value is a 32 bit CRC of all bytes in the log excluding the identifier and the asterisk preceding the four checksum digits See 32 Bit CRC on page 43 for the algorithm used to generate the CRC 5 An ASCII string is one field and is surrounded by double quotation marks For example ASCII string If separators are surrounded by qu...

Страница 34: ...t is a number that counts down from N 1 to 0 where 0 means it is the last one of the set Most logs only come out one at a time in which case this number is 0 N 5 Idle Time Float The minimum percentage of time the processor is idle between successive logs with the same Message ID Y 6 Time Status Enum The value indicates the quality of the GPS reference time see Table 9 GISTM Commands on page 47 Y 7...

Страница 35: ...header information The header length is variable as fields may be appended in the future Always check the header length Data variable CRC 4 bytes 2 The 3 Sync bytes will always be 3 The CRC is a 32 bit CRC performed on all data including the header 4 The header is in the format shown in Table 5 on page 36 Byte Hex Decimal First AA 170 Second 44 68 Third 12 18 ...

Страница 36: ...Message ID number of the log refer to the OEM6 Reference manual for the Message ID values of individual logs 2 4 N 6 Message Type Char Bits 0 4 Reserved Bits 5 6 Format 00 Binary 01 ASCII 10 Abbreviated ASCII NMEA 11 Reserved Bit 7 Response bit see Section 3 4 page 40 0 Original Message 1 Response Message 1 6 N 7 Port Address Uchar See Table 6 on page 38 decimal values 32 may be used lower 8 bits ...

Страница 37: ...liseconds from the beginning of the GPS reference week 4 16 N d 14 Receiver Status Ulong 32 bits representing the status of various hardware and software components of the receiver between successive logs with the same Message ID refer to the OEM6 Firmware Reference manual 4 20 Y 15 Reserved Ushort Reserved for internal use 2 24 Y 16 Receiver S W Version Ushort A value 0 65535 representing the rec...

Страница 38: ... XCOM1 XCOM2_ALL 10 10 All virtual ports for XCOM2 USB1_ALL d 13 All virtual ports for USB1 USB2_ALL e 14 All virtual ports for USB2 USB3_ALL f 15 All virtual ports for USB3 XCOM3_ALL 11 17 All virtual XCOM3 COM1 20 32 COM1 virtual port 0 COM1_1 21 33 COM1 virtual port 1 COM1_31 3f 63 COM1 virtual port 31 COM2 40 64 COM2 virtual port 0 COM2_31 5f 95 COM2 virtual port 31 COM3 60 96 COM3 virtual por...

Страница 39: ...bf 1471 USB1 virtual port 31 USB2 6a0 1696 USB2 virtual port 0 USB2_31 6bf 1727 USB2 virtual port 31 USB3 7a0 1952 USB3 virtual port 0 USB3_31 7bf 1983 USB port 3 virtual port 31 XCOM3 9a0 2464 XCOM3 virtual port 0 XCOM3_31 9bf 2495 XCOM3 virtual port 31 a Decimal port values 0 through 16 are only available to the UNLOGALL command and cannot be used in the UNLOG command or in the binary message he...

Страница 40: ...the message consists of a 40 character string for the response string For example BESTPOSR COM1 0 67 0 FINE 1028 422060 400 00000000 a31b 0 OK b867caad 3 4 3 Binary Response Similar to an ASCII response except that it follows the binary protocols see Table 7 on page 41 Table 8 Binary Message Sequence on page 42 is an example of the sequence for requesting and then receiving BESTPOSB The example is...

Страница 41: ...Length Ushort The length in bytes of the body of the message not including the CRC 2 8 9 Sequence Ushort Normally 0 not including the CRC 2 10 10 Idle Time Uchar Idle time 1 12 11 Time Status Enum 1 a 13 12 Week Ushort GPS reference week number 2 14 13 ms GPSec Milliseconds into GPS reference week 4 16 14 Receiver Status Ulong 4 20 15 Reserved Ushort Reserved for internal use 2 24 16 Receiver S W ...

Страница 42: ...00000 00000000 Checksum 2304B3F1 From Receiver LOG Response Header AA44121C 01008220 06000000 FFB4EE04 605A0513 00004C00 FFFF5A80 Log Response Data 01000000 4F4B Checksum DA8688EC From Receiver BESTPOSB Header AA44121C 2A000220 48000000 90B49305 B0ABB912 00000000 4561BC0A BESTPOSB Data 00000000 10000000 1B0450B3 F28E4940 16FA6BBE 7C825CC0 0060769F 449F9040 A62A82C1 3D000000 125ACB3F CD9E983F DB664...

Страница 43: ... a CRC value to be used by CRC calculation functions unsigned long CRC32Value int i int j unsigned long ulCRC ulCRC i for j 8 j 0 j if ulCRC 1 ulCRC ulCRC 1 CRC32_POLYNOMIAL else ulCRC 1 return ulCRC Calculates the CRC 32 of a block of data all at once unsigned long CalculateBlockCRC32 unsigned long ulCount Number of bytes in the data block unsigned char ucBuffer Data block unsigned long ulTemp1 u...

Страница 44: ...x9f 0x90 0x40 0xa6 0x2a 0x82 0xc1 0x3d 0x00 0x00 0x00 0x12 0x5a 0xcb 0x3f 0xcd 0x9e 0x98 0x3f 0xdb 0x66 0x40 0x40 0x00 0x30 0x30 0x30 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x0b 0x0b 0x00 0x00 0x00 0x06 0x00 0x03 0x42 0xdc 0x4c 0x48 Below is a demonstration of how to generate the CRC from both ASCII and BINARY messages using the function described above ASCII include iostream h include string h v...

Страница 45: ...x5C 0xC0 0x00 0x60 0x76 0x9F 0x44 0x9F 0x90 0x40 0xA6 0x2A 0x82 0xC1 0x3D 0x00 0x00 0x00 0x12 0x5A 0xCB 0x3F 0xCD 0x9E 0x98 0x3F 0xDB 0x66 0x40 0x40 0x00 0x30 0x30 0x30 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x0B 0x0B 0x00 0x00 0x00 0x06 0x00 0x03 unsigned long crc CalculateBlockCRC32 sizeof buffer buffer cout hex crc endl Please note that this hex needs to be reversed due to Big Endian order whe...

Страница 46: ...this command into the receiver to de weight an undesirable satellite in the solution or you can use the lockout command as a log to see if there is a satellite PRN that has already been locked out In ASCII this might be log com1 lockouta once Notice the a after lockout to signify you are looking for ASCII output 4 2 GISTM Specific Commands Please refer to the OEM6 Family Firmware Reference Manual ...

Страница 47: ...H can no longer be used due to fundamental changes between the products Table 10 Legacy GSV4004B Commands Command Description CLOCKADJUST Enables clock adjustments ISMBANDWIDTH Control phase and amplitude detrending filter bandwidth ISMCALIBRATE Setup a TEC self calibration ISMSIGNALCONTROL Control GISTM logging output ISMTECCALIBRATION Sets a TEC calibration value PLLBANDWDITH Set phase lock loop...

Страница 48: ...ng enabled When clock steering is disabled the clock drift over a very long period of time could cause the receiver time offset from GPS to exceed its limits Disabling clock steering will ensure the lowest possible phase noise on the phase scintillation measurements Either setting is valid and can be selected by user preference given application needs Abbreviated ASCII Syntax Message ID 15 CLOCKAD...

Страница 49: ...average of the amplitude This is the most desirable method when long fade amplitude scintillation is present since the Butterworth detrending of amplitude tends to become unstable and provides exces sively large S4 values The straight averaging method is more susceptible to multipath fading Abbreviated ASCII Syntax Message ID 1392 ISMBANDWIDTH phase_bandwidth amplitude_bandwidth Input Example ismb...

Страница 50: ... this command does not automatically set the TEC calibration values in the receiver once the calibration is complete The user must log the ISMCALIBRATIONSTATUS message to examine the results of the calibration and then use the TEC offset values reported in that log as input to the ISMTECCALIBRATION command Abbreviated ASCII Syntax Message ID 1405 ISMCALIBRATE enable start_ delay duration elevation...

Страница 51: ...d GPSL1CA GPSL2C Abbreviated ASCII Syntax Message ID 1398 ISMSIGNALCONTROL signal obs_control TEC_control Input Example ismsignalcontrol glol1ca disable disable L2P Y scintillation measurements and observations are disabled by default L2P Y is an encrypted signal and is therefore tracked using a proprietary semi codeless technique This results in increased noise on the signal and therefore L2P Y m...

Страница 52: ...Type ASCII Description 65 GPSL1CA GPS L1 C A code 132 GPSL2Y GPS L2 P Y encrypted code 133 GPSL2C GPS L2C code 134 GPSL2P GPS L2 P unencrypted code 199 GPSL5Q GPS L5 code 4353 GLOL1CA GLONASS L1 C A code 4419 GLOL2CA GLONASS L2 C A code 4420 GLOL2P GLONASS L2 P code 8257 SBASL1CA SBAS L1 C A code 8386 SBASL5I SBAS L5 code 10433 GALE1 Galileo E1 code 10466 GALE5A Galileo E5A code 10499 GALE5B Galil...

Страница 53: ...tion can also use this command to enter in their calibration values These calibrations can be saved into NVM using the SAVECONFIG com mand so the TEC offsets will be used by default at start up Abbreviated ASCII Syntax Message ID 1388 ISMTECCALIBRATION signal_combination calibration_value Input Example ismteccalibration gpsl1cal5 12 24 Table 12 Signal Combination Code Field Field Type ASCII Value ...

Страница 54: ...in extreme cases clock frequency pop could cause extra losses of lock in lower bandwidth PLLs Changing the bandwidth will change the overall phase noise of the ADR measurements Generally the higher the bandwidth the noisier the ADR measurements but the more robust the tracking loop By default all secondary signals except GPSL2P Y are tracked independently on the GPStation 6 It is recommended that ...

Страница 55: ...ommands Table 13 PLL Aiding Parameters Parameter Binary Parameter ASCII Description 0 CURRENT Do not change the current PLL aiding selection 1 AIDED Enable secondary channel PLL aiding 2 INDEPENDENT Disable secondary channel PLL aiding ...

Страница 56: ...s and results are available at http aiuws unibe ch spec dcb php The most recent 30 day average bias values can be downloaded from http aiuws unibe ch ionosphere p1c1 dcb Abbreviated ASCII Syntax Message ID 687 SETDIFFCODEBIASES bias_type biases Input Example setdiffcodebiases gps_c1p1 0 542 0 069 0 597 1 030 1 289 0 089 1 878 0 686 0 044 1 982 0 528 1 285 1 405 0 029 1 696 0 838 1 237 0 514 2 094 ...

Страница 57: ... each log follows in this chapter Table 15 GISTM Logs Table 16 lists the GSV4004B legacy logs and their modernized GPStation 6 equivalents While all legacy logs are still fully supported in the GPStation 6 it is recommended to use the new logs to ensure access to all of the newest functionality available including the modernized GNSS signals and systems For this reason these logs are not described...

Страница 58: ...e 16 Legacy GSV4004B Logs Legacy Log Description Equivalent Log DETRSIN Detrended phase and amplitude measurements ISMDETOBS ISMR 60 second reduced measurements ISMREDOBS ISMREDTEC RAWSIN Raw phase and amplitude measurements ISMRAWOBS ISMRAWTEC ...

Страница 59: ...eports the measurement at TOW 0 02 the second set at TOW 0 04 seconds and so on The following section describes how to recover the full ADR and power measurements from the compressed data ADR The values stored in the compressed ADR data represent a delta value from the previous epoch s measurement So to compute the ADR measurement for a particular epoch start with the base ADR measurement and add ...

Страница 60: ... System ENUM 4 H 3 chans Number of hardware channels with information to follow ULONG 4 H 4 4 SVID Satellite vehicle ID GPS 1 to 32 SBAS 120 to 138 GLONASS 1 to 24 GALILEO 1 to 50 QZSS 193 to 197 UCHAR 1 H 8 5 Frequency For GLONASS only Range 7 to 6 CHAR 1 H 9 6 Signal Refer to Table 18 Signal Mapping for Satellite Systems UCHAR 1 H 10 7 Reserved Reserved UCHAR 1 H 11 8 First ADR Base ADR cycles D...

Страница 61: ...SBAS SBAS system e g WAAS EGNOS 5 GALILEO Galileo system 7 QZSS QZSS system Satellite System Signal Type ASCII Signal Type Binary GPS L1CA 1 L2Y 4 L2C 5 L2P 6 L5Q 7 GLONASS L1CA 1 L2CA 3 L2P 4 SBAS L1CA 1 L5I 2 Galileo E1 1 E5A 2 E5B 3 AltBOC 4 QZSS L1CA 1 L2C 3 L5Q 4 Bits Field Description Units Format 31 20 Power Factor Change in power from the first value N A sign magnitude 19 0 Delta ADR Chang...

Страница 62: ...W 0 02 delta ADR TOW 0 04 Power The compressed power factor data fields give power measurements as a value relative to the base power The 12 bits of the power factor field should be treated as 2 parts an 11 bit unsigned power factor in the lower 11 bits 1 scaling bit in the most significant bit representing the power scaling formula to be used One formula will calculate a power increase scalar 1 0...

Страница 63: ... Signal Mapping for Satellite Systems UCHAR 1 H 10 7 Reserved Reserved UCHAR 1 H 11 8 First ADR Base ADR DOUBLE 8 H 12 9 First Power Base power measurement ULONG 4 H 20 10 Observation 2a a Observation1 is not listed because Observation1 data is in the first ADR and first power fields Delta for TOW 0 02 refer to Table 19 Power and ADR Bit Field Description ULONG 4 H 24 11 Observation 3a Delta for T...

Страница 64: ...L1 is the primary signal pseudo range in metres Kmeter TEC 1 0 163 TECU metre at L1 There are biases in the TEC measurements that are automatically removed by the receiver if properly calibrated Satellite code phase bias See SETDIFFCODEBIASES command Receiver RF bias See ISMCALIBRATE and ISMTECCALIBRATION commands ΔTEC is based upon carrier phase measurements differences between frequencies For an...

Страница 65: ...NG 4 H 3 SVID Satellite vehicle ID GPS 1 to 32 SBAS 120 to 138 For GLONASS slot 1 to 24 GALILEO 1 to 50 QZSS 193 to 197 UCHAR 1 H 4 4 Frequency For GLONASS only Range 7 to 6 CHAR 1 H 5 5 Satellite System Satellite system identifier refer to Table 17 Satellite System UCHAR 1 H 6 6 Primary Signal Signal type of primary signal in combination refer to Table 18 Signal Mapping for Satellite Systems UCHA...

Страница 66: ...oise based upon the average of the raw 1 Hz C N0 values over the same 60 second intervals 3 Code Carrier Divergence The receiver also collects raw code carrier divergence difference between code and carrier measurement every second The average and standard deviation of the code carrier divergence are then computed every minute on the minute These values are indicative of multi path and noise activ...

Страница 67: ...er H 0 2 chans Number of hardware channels with information to follow ULONG 4 H 3 SVID Satellite vehicle ID GPS 1 to 32 SBAS 120 to 138 GLONASS slot 1 to 24 GALILEO 1 to 50 QZSS 193 to 197 UCHAR 1 H 4 4 Frequency For GLONASS only Range 7 to 6 CHAR 1 H 5 5 Satellite System Satellite system identifier refer to Table 17 Satellite System UCHAR 1 H 6 6 Signal Type Signal type of primary signal in combi...

Страница 68: ...ma 30 second phase sigma radians FLOAT 4 H 52 19 60 second phase sigma 60 second phase sigma radians FLOAT 4 H 56 20 Next record offset H 4 chan x 56 variable xxxx 32 bit CRC ASCII and Binary only HEX 4 H 4 chan x 56 variable CR LF Sentence terminator ASCII only Field Field Type Data Description Format Binary Bytes Binary Offset ...

Страница 69: ...912609100 0 156302705 22 301378250 0 005075458 14 0 0 1 4 0 0 0 195 549 31 927 3610 900 39 3 16 052797318 0 114494205 15 993096352 0 023176139 15 609300613 0 212158322 15 450096130 0 066596538 21 0 0 1 4 0 0 0 135 703 39 378 8537 300 40 0 8 488627434 0 024110690 8 46588 4209 0 115596518 8 030915260 0 080930516 7 703978539 0 083380610 22 0 0 1 4 0 0 0 266 255 70 840 8525 300 46 8 5 051339149 0 0312...

Страница 70: ... 45 sec FLOAT 4 H 28 16 DeltaTEC15 Delta TEC measurement from TOW 60 to TOW 45 seconds TECU FLOAT 4 H 32 17 TEC30 pseudo range TEC measurement at 30 second epoch TOW 30 sec FLOAT 4 H 36 18 DeltaTEC30 Delta TEC measurement from TOW 45 to TOW 30 seconds TECU FLOAT 4 H 40 19 TEC45 pseudo range TEC measurement at 45 second epoch TOW 15 sec FLOAT 4 H 44 20 DeltaTEC45 Delta TEC measurement from TOW 30 t...

Страница 71: ...cified with the ISMCALIBRATE command are included in the calibration The current TEC calibration value in units of TECU The standard deviation of the current TEC calibration value Structure Message ID 1406 Log Type Asynch Recommended Input LOG ISMCALIBRATIONSTATUSA ONNEW ASCII example ISMCALIBRATIONSTATUSA USB1 0 81 0 FINESTEERING 1666 430620 000 00000020 45d2 10283 1680 2 GPSL1CAL2Y 28 27 5134639...

Страница 72: ... GPStation 6 User Manual Rev 2 72 Table 20 Signal Combination Type Signal Combination Type Binary Signal Combination Type ASCII 0 GPSL1CAL2Y 1 GLOL1CAL2P 2 GPSL1CAL2C 3 GPSL1CAL5 4 SBASL1CAL5 5 GLOL1CAL2CA ...

Страница 73: ...GPStation 6 User Manual Rev 2 73 Chapter 6 Technical Specifications 6 1 GPStation 6 Enclosure PHYSICAL Size 233 x 154 x 71 mm Weight 1 4 kg DIMENSIONS 236 71 233 154 Top View Front View Side View ...

Страница 74: ...time of the falling edge of the mark input pulse Can be either polarity but a pulse of 100 ns is required PV Position Valid Output indicates a good solution or a valid GPS solution when high ERROR Output that Indicates fatal error warning when high PPS Pulse Per Second Active high or low and is programmable STROBE ELECTRICAL SPECIFICATIONS Output Voltage LVTTL levels Low High minimum 0 VDC and max...

Страница 75: ...o antenna LNA PWR 4 pin LEMO connector Enclosure Input Voltage 11 to 18 VDC Power Consumption 6 W Typical COM1 COM2 COM3 I O OSC1 DB 9 male connector DB 9 male connector DB 9 male connector DB 9 female connector BNC female connector ENVIRONMENTAL Operating Temperature 20 C to 45 C Storage Temperature 45 C to 85 C Humidity Not to exceed 95 non condensing 1 10 MHz output only ...

Страница 76: ... 232 1 Reserved N C N C 2 RXD1 RXD2 RXD3 3 TXD1 TXD2 TXD3 4 N C N C N C 5 GND GND GND 6 D N C N C 7 RTS1 RTS2 N C1 1 No flow control available on COM3 8 CTS1 CTS2 1 9 D N C N C Connector Pin No Signal Name Signal Descriptions 1 Reserved 2 PPS Pulse per second 3 Reserved 4 MKI Mark input 5 PV Valid position available 6 Reserved 7 Reserved N C 8 ERROR Indicates a fatal error when high 9 GND Digital ...

Страница 77: ...t from the power adapter utilizes a 4 pin LEMO connector LEMO part number FGG 0B 304 CLAD52Z and plugs directly into the PWR input located on the back panel of the enclosure Reference Description Reference Description 1 Black 5 Ground 2 Red 6 9 to 18 VDC 3 Orange or Green 7 9 to 18 VDC 4 Brown or White 8 Ground 9 Connector key marking 12 Universal tip 10 12V adapter 13 6 Amp slow blow fuse 11 Spri...

Страница 78: ...Straight Through Serial Cable NovAtel part number 01018520 This cable can be used to connect the receiver to a modem or radio transmitter to propagate differential corrections The cable is equipped with a female DB9 connector at the receiver end The male DB9 connector at the other end is provided to plug into your user supplied equipment refer to your modem or radio transmitter user guide for more...

Страница 79: ...end of this cable is provided without a connector for maximum flexibility The cable is approximately 2 m in length Wiring Table Reference Description Reference Description 10 DB9 male connector 11 9 conductor cable I O Port Pin I O Port Signal I O Port Cable Wire Color I O Port Pin I O Port Signal I O Port Cable Wire Color 1 Reserved Black 6 Reserved Green 2 PPS Brown 7 Reserved Blue 3 Reserved Re...

Страница 80: ... 6 and another serial communications device such as a computer At the enclosure end the cable has a DB9 connector that plugs into a COM port The other end of the cable has a USB connector This cable is RoHS compliant Wiring Table Reference Description 10 Female DB9 connector 11 USB connector DB9 Connection on Receiver Signal Series A USB Plug Pin 5 GND Pin 4 Pin 6 USB D Pin 3 Pin 9 USB D Pin 2 ...

Страница 81: ...81 GPStation 6 User Manual Rev 2 Technical Specifications 6 3 Mounting Bracket Dimensions 236 71 233 173 4 0 5 186 Top View Front View Side View 75 70 Ø6 6 0 5 55 54 0 5 ...

Страница 82: ...not establish communication Check and replace faulty serial cables and ports Refer also to the COMCONFIG log in the OEM6 Family Firmware Reference Manual The receiver is not tracking satellites Ensure that you have an unobstructed view of the sky from horizon to horizon Check the RXSTATUS error states See Section Examining the RXSTATUS Log page 83 If the receiver is in error mode it will not track...

Страница 83: ...se the baud rate The receiver is indicating that an invalid authorization code has been used Refer to the Version log VALIDMODELS log and the MODEL command in the OEM6 Family Firmware Reference Manual The receiver is being affected by jamming Move the receiver away from any possible jamming sources The receiver s automatic gain control AGC is not working properly Refer to the jamming symptom in th...

Страница 84: ...rt Knowledge and Learning 4 5 6 7 Check the CPU idle time Check for unnecessary logging Check for simultaneous use of functionality for example API and RTK 8 Check the serial port communication settings 15 Move the receiver away from any possible jamming sources If still a problem contact Customer Support 17 Move the receiver away from any possible jamming sources 18 When the receiver has tracked ...

Страница 85: ...are Reference Manual 24 Check the CPU idle time Check for unnecessary logging Check for simultaneous use of functionality for example API and RTK 29 None This bit indicates if any bits in the auxiliary 3 status word are set The auxiliary 3 word provides status information and does not contain any new information on problems Refer also to the FRESET command in the OEM6 Family Firmware Reference Man...

Страница 86: ...ia USB 8 10 Reduce the amount of logging on the USB ports 11 13 Reserved bits 14 17 AGC error on RF1 through RF4 respectively To resolve ensure antenna cable is connected and signal input level is within specification 18 Connect the receiver via Ethernet 19 21 Reduce the amount of logging on the Ethernet ports 22 24 Reduce the amount of logging on the NTRIP ports 25 27 Reduce the amount of logging...

Страница 87: ...cation 78 cable 80 Connect the GNSS antenna 17 Connect the receiver 17 connectors 75 77 copyright 2 CRC see cyclic redundancy check cyclic redundancy check CRC 32 33 35 36 41 43 D data communications equipment 18 DC 75 defaults 74 DETRSINB 42 DIMENSIONS 73 E e mail 7 emissions notice 8 Equipment additional 15 Included 15 equipment data communications 18 F field type 31 format 32 33 43 G GLONASS L2...

Страница 88: ...ii header 34 communication 34 identifier 38 Power 17 power 77 Power Supply Requirements 16 Power to receiver 18 processing 34 37 PWR LED 17 Q quotation mark 33 R RAWSINB 66 71 response 40 revision manual 2 S selecting antenna 15 serial cable 80 Signal Combination Code 53 Signal Type 52 status receiver 34 time 34 support 7 T time status 34 troubleshooting 21 30 46 57 73 type field 31 U USB cable 80...

Страница 89: ...OM 20000132 Rev 2 November 2012 ...

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