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Datasheet MS3085 Issue 3-00 April 2014

GSS6300M Multi-Channel GNSS Simulator Datasheet With Product Specification

Spirent Communications | GSS6300M Multi-GNSS Simulator Datasheet

2 Datasheet MS3085 Issue 3-00 April 2014

PROPRIETARY INFORMATION THE INFORMATION CONTAINED IN THIS DOCUMENT IS THE PROPERTY OF SPIRENT COMMUNICATIONS PLC. EXCEPT AS SPECIFICALLY AUTHORISED IN WRITING BY SPIRENT COMMUNICATIONS PLC, THE HOLDER OF THIS DOCUMENT SHALL KEEP ALL INFORMATION CONTAINED HEREIN CONFIDENTIAL AND SHALL PROTECT SAME IN WHOLE OR IN PART FROM DISCLOSURE AND DISSEMINATION TO ALL THIRD PARTIES TO THE SAME DEGREE IT PROTECTS ITS OWN CONFIDENTIAL INFORMATION. © COPYRIGHT SPIRENT COMMUNICATIONS PLC 2009 - 2014. The ownership of all other registered trademarks used in this document is duly acknowledged


Datasheet MS3085 Issue 3-00 April 2014 3

Table of Contents

Purpose of this document .............................................................................................................................................. 4

Key features ................................................................................................................................................................... 5

How the GSS6300M Multi-channel GNSS Simulator works ...................................................................................... 7

GSS6300 Compatibility ................................................................................................................................................... 8

Hardware Description ...................................................................................................................................................... 8

Performance ................................................................................................................................................................ 10

Software and Control .................................................................................................................................................. 15

Deliverables .................................................................................................................................................................... 20

Applicable Documents .................................................................................................................................................. 20

Appendix A. Remote Commands ............................................................................................................................. 21

Appendix B. GNSS OUT OF BAND SPECTRAL PURITY ........................................................................................ 22

Appendix C. Product Description Codes ................................................................................................................ 23

List of Tables

Table 1 Supported constellations ...................................................................................................................................... 7 Table 2 Signal Characteristics ......................................................................................................................................... 10 Table 3 Coaxial Connections ........................................................................................................................................... 11 Table 4 Digital Connectivity (D-Type) .............................................................................................................................. 12 Table 5 GPS / SBAS / QZSS D-type output settings ....................................................................................................... 12 Table 6 GLONASS D-type output settings ...................................................................................................................... 13 Table 7 Galileo E1b D-type output settings ..................................................................................................................... 13 Table 8 Galileo E1c D-type output settings ..................................................................................................................... 13 Table 9 BeiDou-2 GEO D-type output settings ................................................................................................................ 13 Table 10 BeiDou-2 MEO D-type output settings ............................................................................................................. 14 Table 11 Other Connections ............................................................................................................................................ 14 Table 12 Physical and Electrical ...................................................................................................................................... 18 Table 13 Deliverable Items .............................................................................................................................................. 20 Table 14 Applicable Documents ...................................................................................................................................... 20 Table 15 Common Remote Commands .......................................................................................................................... 21 Table 16 Product Description Codes ............................................................................................................................... 23

List of Figures

Figure 1 GSS6300M Multi-channel GNSS Simulator (typical front panel) ........................................................................ 8 Figure 2 GSS6300M Multi-channel GNSS Simulator Rear Panel (typical) ..................................................................... 14 Figure 3 SimCHAN typical screenshot ............................................................................................................................ 15 Figure 4 SimCHAN Enhancement pack typical screenshot: Sky Plot view of satellites .................................................. 16 Figure 5 SimCHAN Enhancement pack typical screenshot: Custom trajectories using google maps ............................ 16 Figure 6 Typical front panel ............................................................................................................................................ 18



Purpose of this document This datasheet describes the GSS6300M Multi-channel GNSS simulator and its functionality.

This datasheet also provides technical data and configuration information. Please speak to your Spirent sales representative before ordering.



About the GSS6300M Multi-channel GNSS Simulator

The GSS6300M is designed to enable fundamental performance evaluation of GPS or multi-GNSS receivers, systems and applications. The GSS6300M is easy to set up and to use, is integrated in a single unit, has auto start and continuous run modes, and can be controlled via a range of interfaces.

The GSS6300M retains the signal fidelity and stability that is an essential element of all Spirent RF constellation simulators. Complete navigation data is generated in real time across all constellations and dates. The system can be upgraded as constellations and test needs grow. Most features are enabled by licence key.

The GSS6300M generates L1/E1 signals from GPS, BeiDou, GLONASS, Galileo, QZSS and SBAS. Constellations and other features are enabled by licence key. The unit features an integrated controller. Test set up can be accomplished flexibly via either monitor / keyboard / mouse, from any browser or mobile device or using remote commands.

The GSS6300M supports test engineers, production test technicians and system integrators both in the field and on the bench by allowing them to quickly create test cases to evaluate fundamental receiver performance parameters such as

- Cold\Hot\Warm TTTF(time to first fix)

- Acquisition sensitivity

- Dynamic range

- Tracking sensitivity

- Reacquisition time

- Power level accuracy

- Position accuracy for static or moving vehicle

Key features Multi-GNSS

- GPS/SBAS/QZSS, GLONASS and Galileo or BeiDou supported in a single chassis

- Can be supplied equipped with 1, 2, 3 or 4 constellations enabled

- GPS L1 , SBAS , QZSS L1 C/A Code

- GLONASS L1 C/A Code

- Galileo E1 B/C

- BeiDou BD-2 B1I1

- 4 or 8 independent channels of each primary constellation

- Dynamic satellite selection using dilution of precision criteria

Accurate, Comprehensive Positioning Testing

- Simulate 3D position in real time using all of supported constellations

- User control over test parameters including power level, user position, date, time, atmospheric condition, Doppler, PRN and data message.

- Conduct essential performance tests including time to first fix, acquisition sensitivity and positioning accuracy.

1 Simultaneous Galileo and BeiDou operation is supported with dual chassis configuration



Flexible and Easy to Use

- User control over test parameters with interactive run time control

- Class leading accuracy, fidelity and reliability

- Fine Power Level Control

- GPIB (IEEE488), Ethernet, or USB control interface

- Field upgradable to add constellations

More features with software enhancement pack (optional)

- Vehicle motion

• Select from static, circular (configurable circumference & speed), rectangular and 3GPP TS 25.171 defined trajectories

• SimROUTE application (included) - Generate route-matched trajectory data from Google Maps®

- Continuous run mode : Allows for a scenario to run indefinitely

- Add realistic receiver antenna pattern and multipath effects

- Real-time visualisation of calculated position of device under test data with truth (simulation) data2

- Add environmental effects including tropospheric (wet or dry) and ionospheric correction

- Configure leap second events

- Sky Plot view of the visible simulated satellites

- AutoSTART: Selected scenario starts automatically each time simulator is powered on

2 requires internet connectivity



What the GSS6300M Multi-channel GNSS Simulator does

The GSS6300M Multi-channel GNSS Simulator provides coherent simulated signals from GPS\SBAS\QZSS, GLONASS and Galileo or BeiDou BD2 satellites at the L1 / E1 / B1 frequency. Systems where Galileo and BeiDou2 are required simultaneously, require two interconnected chassis Generation of signals from the various constellations is enabled by licence key. The number of channels available per constellations is dependent on the type of license key purchased whether 4 or 8 channels. Each constellation either functions in 4 or 8 channels mode, but both cannot be mixed.

In 4 Channel configurations - If five licence keys are present, the GSS6300M Multi-channel GNSS Simulator can generate 20 channels (in total) of various constellations concurrently. If all Electronic Feature keys are present, the GSS6300M can generate 4 channels of GPS/SBAS, 4 channels of GLONASS, 4 channels of BeiDou-2, 4 channels of QZSS and 4 channels of Galileo concurrently.

In 8 Channel configurations - If five licence keys are present, the GSS6300M Multi-channel GNSS Simulator can generate 36 channels (in total) of various constellations concurrently. If all Electronic Feature keys are present, the GSS6300M can generate 8 channels of GPS/SBAS, 8 channels of GLONASS, 8 channels of BeiDou-2, 8 channels of QZSS3 and 8 channels of Galileo concurrently.

Table 1 Supported constellations

Constellation Number of channels supported

GPS L1 C/A , SBAS L1 4 4 or 8

GLONASS L1 C/A 4 or 8

BeiDou B-2 B1 4 or 8

Galileo E1 B/C 4 or 8

QZSS L1 C/A 4 or 8

The GSS6300M is controlled either using remote commands or via the supplied software application package SimCHAN for Windows®.

The GSS6300M generates similar RF signals to those that would be seen by a GNSS receiver, when installed on a vehicle with date, time and place pre-defined in a test “scenario”.

Unlike testing with live-sky signals, the users of a GSS6300M can repeat precisely the same simulation at any time or location to compare a number of receivers under identical test conditions.

It is also possible to operate the GSS6300M in single channel mode, with no controller PC and direct control of the hardware via remote commands.

How the GSS6300M Multi-channel GNSS Simulator works The GSS6300M supports two modes of operation – integrated into an ATE (automated test equipment) environment using remote control functions or using SimCHAN software.

For automated operation, the GSS6300M can be synchronised with other equipment and controlled remotely over Ethernet, IEEE-488(GPIB) or USB ports on the inbuilt controller PC running SimCHAN software. When operating in single channel GSS6300 mode the GSS6300M provides identical mode of operation to GSS6300 and provides remote control over IEEE-488(GPIB) ports available on the hardware.

3 With 8 channels of GPS and 8 channels of QZSS enabled, following channel configurations can be supported 8 GPS only 8 QZSS only 8 GPS + 4 QZSS 8 QZSS + 4 GPS 4 SBAS has a shared allocation(up to 3 channels) with GPS channels



Using the SimCHAN software interface, supplied with the GSS6300M, the user is able to create unlimited scenarios and specify parameters such as user position, date and time. The software enhancement pack offers additional flexibility including motion and other effects.

Both modes support precise user control over power level and atmospheric effect6 selection.

The GSS6300M can be easily controlled from a tablet or smartphone directly over Wi-Fi or through remote desktop\VNC on any network. The unit can also be controlled by connecting a mouse, keyboard and monitor.

GSS6300 Compatibility The GSS6300M supports single channel GSS6300 operation.

Performance of a GSS6300M running in single channel 6300 mode has been verified to be equivalent to a GSS6300.

The GSS6300M when running in GSS6300 single channel mode provides the same mode of operation as the GSS6300 and shares the same remote command instruction set. Please refer to MS3063 GSS6300 specification for more details on the single channel operation and performance. If you have any questions about the GSS6300 compatibility with earlier Spirent products, please contact Spirent.

Hardware Description General

The GSS6300M Multi-channel GNSS Simulator is housed in a 2U, full width rack-mountable case and is powered via the ac mains connector. The rear panel mounted fan provides forced-air cooling.

The GSS6300M Multi-channel GNSS Simulator uses direct digital waveform synthesis to provide a low-cost, stable instrument with very low life-cycle support costs.

The GSS6300M includes an in-built controller PC; there is no need for an external PC or software to operate the unit.

Figure 1 GSS6300M Multi-channel GNSS Simulator (typical front panel)

The primary RF output is fitted on the front of the unit. All other connections are accessed via the rear-panel. Calibration adjustments may also be made via the rear panel, without removing the unit from a rack or other typical mounting. A USB port is also available on the front panel.

Frequency accuracy is derived from a high-stability ovenised crystal oscillator fitted internally and its signal is made available for external use. Alternatively, the generator may be locked to an external frequency reference signal as described in Table 3 Coaxial Connections. The frequency of the external reference is software selectable.

The simulator can be synchronised with other test equipment using its 1PPS input and output signals.

6 Not applicable when operating in GSS6300 single channel mode



Built-In-Test-Equipment (BITE) data are available via the IEEE-488 interface. This enables any control software to check that the simulator is operating correctly.

Signal Generator performance is defined in Table 2of this datasheet.



Performance Table 2 Signal Characteristics

Parameter Comment Value Units

Signal Sources

GPS L1 or SBAS7 GLONASS L1 Galileo E1 BeiDou BD2 B1I QZSS

4 or 8 4 or 8 4 or 8 4 or 8 4 or 8

channels channels channels8 channels channels

Signal Codes

GPS L1 C/A SBAS L1 C/A GLONASS L1 C/A Galileo E1-B/C CBOC BeiDou BD2 B1I QZSS L1 C/A

1 – 63 120 -138 -7 to +6 1 - 50 1 – 37 182 – 202

PRN PRN Channels PRN PRN PRN

Signal Dynamics

Maximum Relative Velocity ±15,000 m/s Maximum Relative Acceleration ±450 m/s2 Maximum Relative Jerk ±500 m/s3 Maximum Angular rate (1.5m lever arm) 2π rad/s

Signal Bandwidths GPS L1, Galileo E1 and QZSS L1 Beidou B1 GLONASS L1

20 16 10

MHz MHz MHz

In-band9 spectral purity Referred to unmodulated carrier power at RF output < -3010 dBc

Out-of-band Spectral Purity (within Bands specified)

GNSS 1500 to 1700 MHz < -9511 dBm

Harmonics Referred to unmodulated carrier power at RF output <-40 dBc

Phase noise close to unmodulated carrier

Integrated between 1 Hz and 10 kHz (Single Sideband) < 0.02 rad RMS

Time Synchronisation between GNSS signals

Adjustable pseudorange Resolution

± 1 1

ms ns

Nominal signal power at Primary RF port

GPS L1 SBAS L1 GLONASS L1 Galileo E112 BeiDou B1I QZSS L1

-130 -130 -131 -127.0 -133.0 -130

dBm dBm dBm dBm dBm dBm

Primary RF to Mon Cal port power offset Note13 Nominal 57 dB

Signal power control Per channel (+15 to -20dB from nominal) Resolution

35 0.1

dB dB

7 Upto 3 SBAS channel can be simulated from shared allocation of GPS channels. 8 Galileo and BeiDou are possible with the addition of a second chassis 9 ‘in band’ refers to applicable constellation signal bandwidth. 10 At nominal RF output power and above. 11 Refer to Appendix B for details 12 Power specified with B and C codes present. 13 The specific offset is measured precisely on a unit by unit basis, and provided with each unit. The GSS6300M provides both the calibrated front-panel RF output port (Primary RF) for testing, and a rear-panel output port (MON CAL) at a fixed power offset to allow monitoring of the un-calibrated signal at a high-level, and a means of calibrating the primary RF. Both ports are isolated to dc voltages.



Parameter Comment Value Units External Reference Frequency Input Selectable 10, 5, 1 MHz

Nominal carrier frequency GPS L1/SBAS L1/Galileo E1/QZSS L1 GLONASS L1, Channel 0 BeiDou B1I

1575.42 1602 1561.098

MHz MHz MHz

External Reference Power 5 or 10MHz (sine or square wave) 1MHz (square wave)

-5 to +10 0 to +10

dBm dBm

External Trigger Input To control start of simulation (TTL logic levels, rising edge trigger) >2 µs pulse

1PPS OUT to RF Delay (Per constellation)

Timing Uncertainty between a rising transition on 1PPS OUT port and its corresponding event on the Primary RF port.

0 ± 5 nsecs 1σ (RSS) ref: 1PPS OUT 1.5v into 50 ohm

Channel Hardware Update Rate 10 Hz

Connectivity Table 3 Coaxial Connections

Signal Type Detail Description

Primary RF port OUT COAXIAL Type ‘N’ Female Front Panel

Provides the primary RF GNSS signal output at specified levels. 50 ohm VSWR <1.2:1 (in band). DC isolated.14

CAL Output OUT COAXIAL Type ‘SMA’ Female Rear panel

Provides a high level output to support calibration with a power meter. 50 ohm VSWR <1.45:1 (at L1). DC isolated.14

External Reference IN COAXIAL Type ‘BNC’ Socket Rear Panel

Allows the GSS300 to be locked to an external reference. 5 or 10 MHz sine or square wave 1MHz square wave

INT REF OUT Internal Reference Oscillator

OUT COAXIAL Type ‘BNC’ Socket Rear Panel

10 MHz sine 0 dBm minimum 50 ohm

TRIGGER IN COAXIAL Type ‘BNC’ Socket Rear Panel

A trigger pulse input to allow an external signal to start the simulation. TTL level compatible 50 ohm

Baseband codes and clock signals for each GNSS signal present may be accessed through a 25-way D-type external connector; see Table 4

14 DC Isolation can withstand a maximum DC level of ±60V and reverse RF levels to a maximum of 1W.



Table 4 Digital Connectivity (D-Type)

Signal Type Description

1PPS OUT 1 pulse every second (independent of Doppler setting) The 1PPS OUT pulse width is 100 ms

1PPS IN 1 pulse every second

PRN Code OUT

The pseudorandom ranging code chip sequence for a specified constellation (synchronous with Chip Clock). Output changes depending on constellation specified15, see Table 5 to Table 10.

Chip Clock OUT 1.023 MHz or 511kHz nominal (varies with Doppler setting). Output changes depending on constellation specified15, see Table 5 to Table 10.

Code Epoch OUT One pulse every cycle of the PRN code. Output changes depending on constellation specified15, see Table 5 to Table 10.

Data Bit stream / Secondary PRN code

OUT Output changes depending on constellation specified15, see Table 5 to Table 10

1 Second Epoch OUT 1PPS based on chip clock (varies with Doppler setting). Output changes depending on constellation specified15, see Table 5 to Table 10.

When multiple constellations are enabled, one user-selectable GNSS baseband signal set is available at a time. The GNSS required is pre-selected by the user. See Table 5 through Table 10 for baseband signal set variants.

All outputs are TTL compatible and capable of driving loads to 50 ohm. Inputs are 50 ohm terminated. Signal Ground returns are included.

Table 5 GPS / SBAS / QZSS D-type output settings


PRN Code OUT The GPS / SBAS / QZSS pseudorandom ranging code chip sequence (synchronous with Chip Clock).

Chip Clock OUT 1.023 MHz nominal (varies with Doppler setting)

Code Epoch OUT One pulse every cycle of the PRN code

Data Bit stream OUT GPS / SBAS / QZSS auNavigation data message

1Sec Epoch OUT 1PPS based on chip clock (varies with Doppler setting)

15 When multiple constellations are in use a user setting can be specified. If no user setting is specified a default setting is selected.



Table 6 GLONASS D-type output settings


PRN Code OUT The GLONASS pseudorandom ranging code chip sequence (synchronous with Chip Clock).

Chip Clock OUT 511 kHz nominal (varies with Doppler setting)


Data Bit stream OUT GLONASS Navigation data message, including meander sequence


Table 7 Galileo E1b D-type output settings


PRN Code OUT The Galileo E1b pseudorandom ranging code chip sequence (synchronous with Chip Clock).



Data Bit stream OUT Galileo E1b Navigation data message


Table 8 Galileo E1c D-type output settings


PRN Code OUT The Galileo E1c Primary code pseudorandom ranging code chip sequence (synchronous with Chip Clock)


Code Epoch OUT One pulse every cycle of the PRN Primary code

Data Bit stream OUT The “exclusive or” combination of the Galileo E1c Primary code and E1c secondary code


Table 9 BeiDou-2 GEO D-type output settings


PRN Code OUT The BeiDou-2 primary pseudorandom ranging code chip sequence (synchronous with Chip Clock)



Data Bit stream OUT BeiDou-2 500Hz Navigation data message

1 Second Epoch OUT 1PPS based on chip clock (varies with Doppler setting)



Table 10 BeiDou-2 MEO D-type output settings


PRN Code OUT The BeiDou-2 primary or secondary pseudorandom ranging code chip sequence (synchronous with Chip Clock)



Data Bit stream OUT BeiDou-2 50Hz Navigation data message

1 Second Epoch OUT 1PPS based on chip clock (varies with Doppler setting)

Table 11 Other Connections

Connector Type Description

HOST IEEE Comm

Auxiliary Control Interface IEEE-488. Available for use when running the GSS6300M in GSS6300 single channel mode.

For variable length commands, the maximum command length is 2048 characters, which includes the line terminating NULL character (decimal value: 0)

USB Comm

Alternative Control Interface using USB 2.0, 3.0

Suitable for ATE applications

Also provides direct access to the integrated controller file system

Ethernet Comm Primary means to remote control the GSS6300M using standard Ethernet port.

Figure 2 GSS6300M Multi-channel GNSS Simulator Rear Panel (typical)



Software and Control

SimCHAN Software The GSS6300M Multi-channel GNSS Simulator is supplied with a Microsoft Windows® 7compatible software package called SimCHAN. SimCHAN allows full control of the GSS6300M and provides the user the capability to simulate GNSS signals and edit parameters including power level, user position, date, time, atmospheric condition, Doppler, PRN and data message.

SimCHAN software enhancement pack (optional) provides added functionality, allowing user to create custom trajectories using Google maps or select from pre-configured trajectories. Realistic antenna pattern, multipath and environmental (tropospheric, ionosphere) effects can also be enabled amongst other features.

SimCHAN has a graphical user interface (GUI) which is designed to be simple to use. All parameters are entered in engineering units and operator-entered parameters are checked to be within range. The mode of operation is readily visible on a Toolbar control.

The application window allows all parameters to be entered and reviewed. The form may be saved and re-loaded allowing a user to build sets of standard test cases and quickly switch between them.

Figure 3 SimCHAN typical screenshot



Figure 4 SimCHAN Enhancement pack typical screenshot: Sky Plot view of satellites

Figure 5 SimCHAN Enhancement pack typical screenshot: Custom trajectories using google maps



Operating Mode

The GSS6300M can be operated in two modes – multi-channel simulation or GSS6300 single channel mode.

In multi-channel operation the hardware can be controlled manually or via remote commands using SimCHAN software. Remote control of the system is enabled using Ethernet, IEEE-488 and USB ports on the inbuilt controller. PC configuration for remote control operation is handled by SimCHAN.

The GSS6300M, when used in GSS6300 single channel mode, provides identical control and test functionality to the GSS6300 single channel multi-GNSS simulator

USB Control May be used to either plug mouse, keyboard & monitor to control the SimCHAN running on the integrated controller PC or to control GSS6300M remotely by sending remote commands.

The USB ports may also be used to connect a compatible Wi-Fi dongle, to control the GSS6300M remotely through a laptop or tablet PC, over Wi-Fi.

GPIB Control When running in GSS6300 single channel mode, IEEE-488 interface is available as control interface for the signal generator. This interface may be used by a program or application created by the customer. All commands are available on this interface, including those that contain binary data. All the hardware features of the unit may be controlled and varied via this industry standard (IEEE-488.1) interface.

APPENDIX A lists the most common of the available GPIB commands.

Ethernet Control It provides network connectivity to the integrated PC controller. Enables complete remote desktop access to the controller, file transfers and remote control of GSS6300M using remote commands.



Environmental and Physical

Table 12 Physical and Electrical

Parameter Value

Dimensions, nominal 449 mm x 386 mm x 89 mm (W x D x H) (17.75 inch x 15.25 inch x 3.5 inch)

Weight Signal Generator (approx)

Approx. 7.0 kg (Approx. 15.5 lb)

Temperature Operating Humidity

+10°C to + 40oC (50°F to 104oF) 40 to 90% RH (non-condensing)

Temperature Storage Humidity

-40°C to + 60oC (-40°F to 140oF) 20 to 90% RH (non-condensing)

Electrical Voltage Power Consumption Frequency

100 to 240 V ac (auto sensed) <72 W 50 to 60 Hz

Figure 6 Typical front panel

Calibration Requirements The GSS6300M Multi-channel GNSS Simulator must be calibrated at 12 monthly intervals to guarantee performance within specification. The GSS6300M has been designed to be easy to calibrate, requiring a minimum of expertise and time, and all adjusters are available externally on the rear panel of the simulator.

If the GSS6300M is to be used for very accurate absolute frequency measurements it is advisable to either check the absolute frequency of the simulator’s internal frequency oscillator or frequency-lock the unit to an external reference. A calibrated Frequency Counter is required to measure 10.00 MHz with a resolution of 0.05 Hz. A frequency adjust control is provided on the rear panel of the unit.

The output power level may be checked and/or adjusted as necessary (via rear panel) whilst monitoring the higher level RF port specifically provided for this purpose. A calibrated power meter capable of measuring a signal of around -50 dBm at 1.57542 GHz is required.



INTEGRATED COMPUTER CONTROLLER SPECIFICATION

• Computer running Windows 7 32-Bit operating system • CPU: 4th Gen 1.7MHz or faster processor • 4GB or more RAM • 60GB SSD hard disk • USB: 1 front panel USB port for convenient access when rack mounted, 4 rear panel USB ports • 1 x 100MHz Ethernet port • 1 x HDMI VDU Port packaged with HDMI to DVI converter.

To operate the device the user must supply mains power to the unit and then turn on the power switch located on the rear panel. The Integrated PC Controller will automatically power on in conjunction with the GNSS simulator.

The user can then choose to Shut down and Start the Integrated PC controllers Windows 7 operating system using the front panel CPU switch.

SAFETY AND EMC CONFORMITY The GSS6300M Multi-channel GNSS Simulator complies with the Low Voltage Directive (LVD) 2006/95/EC by application of the following harmonised standard:

EN60950-1:2006 Information technology equipment. Safety. General requirements.

The GSS6300M Multi-channel GNSS Simulator complies with the EEC EMC Directive 2004/108/EC by application of the following harmonised standard:

EN61326-1:2006 Electrical Equipment for Measurement, Control and Laboratory Use. EMC requirements. General requirements.



Deliverables

Table 13 Deliverable Items

Item No. Quantity Component Comment

1 1 GSS6300M Multi-channel GNSS Simulator

GNSS capability provided depends upon Order Code specified. Please check your quote to confirm that the desired GNSS are included.

2 1 HDMI to DVI VDU Adapter To adapt the HDMI output to a standard DVI Monitor input.

3 1 Power cable Country specific

4 1 USB Memory Stick

SimCHAN software for Windows®

GSS6300M user manual

Default correction files for SBAS

Example files for velocity profiles

5 1 License Key Defines the system capability. May be pre-installed or supplied electronically on registration (for upgrades)

6 1 Multi-box cable Optional. Provided by default with product configurations requiring two or more GSS6300M units to be connected together.

Applicable Documents

Table 14 Applicable Documents

Reference Title Issue Date

ICD-GPS-200F Navstar GPS Space Segment / Navigation User Interfaces Rev D Dec 04

OS SIS ICD Galileo Open Service Signal-in-Space Interface Control Document Issue 1.1 Sep 10

- GLONASS Interface Control Document 5.0 Sep 02

BDS-SIS-ICD-B1I-1.0 2012-12

BeiDou Signal-in-Space Interface Control Document Open Service B1I 1.0 Dec 12

RTCA-DO229 WAAS MOPS C Nov 01

MS3063 GSS6300 Multi-GNSS Generator 2-40 Mar 11

IS-QZSS Interface Specification (draft) 1.2 Mar 10



Appendix A. Remote Commands Table 15 Common Remote Commands

Command Description

Configuring a scenario

START_TIME Set the simulation start time, date and duration

FW_CMD Pass commands directly to the signal generator

INIT_POS Override the current simulation initial position

SET_ANT_FREQS Set the constellations and frequencies

SC Load a scenario file

SC_NAME Return the name of the currently loaded scenario

RU_NOWAIT Run the currently selected scenario

LOAD_ALMANAC Load a YUMA format almanac file

LOAD_ANY_FILE Load a specified atmosphere file into the scenario

POW_LEV Set the power level by Channel or satellite

EN End the currently running scenario

Navigation data commands

SET_NAV Enable navigation data message

GAL_DATA_ERR Enter Galileo navigation data errors

GLONASS_NAV_DATA_ERR Enter GLONASS navigation data errors

GPS_NAV_DATA_ERR Enter GPS ‘L1 Legacy’ navigation data errors

SBAS_DATA_ERR Enter SBAS navigation data errors

Single channel mode commands

SET_DIR_PR Run in single channel mode

SET_DIR_INIT_PR Set the initial pseudorange

SET_DIR_PROFILE Set a user velocity profile

SET_DIR_SV Set the satellite SVID

SET_DIR_VEL Set the velocity and carrier Doppler offset

SET_PRN_CODE Set the PRN



Appendix B. GNSS OUT OF BAND SPECTRAL PURITY The expected signal power level that could be obtained at the Mon/Cal port is computed as:

PExpected (dBm) = PReference + POffset + PMON/CAL to RF where: PExpected : Expected power level PReference : Constellation specific reference power level POffset : Maximum power level offset wrt reference power level PMon/CAL to RF : Constellation specific Mon/Cal to RF power level difference range from 56dB to 59dB. For worst case situation, 56dB is used in the calculation.

By specifying the the GNSS out of band spurious to -95dBm, the carrier to spurious ratio is: C/N (dBc) = PExpected - GNSS out of band spurious



Appendix C. Product Description Codes The GSS6300M is available with one or more of the GNSS constellations installed. Constellations can be purchased either in 4 or 8 channel configurations, per Table 1. To avoid confusion it is recommended that in correspondence with Spirent the following product codes are used.

Simultaneous Galileo and BeiDou operation is currently only supported under dual chassis configuration

Note that constellations16 not specified at initial purchase may be enabled subsequently by a straightforward field upgrade process. This process does not require the unit to be returned to the factory and can be performed by the user.

To enable more features SimCHAN enhancement pack can be purchased, either at the time of initial purchase or subsequently, without needing to return the unit back to factory

Table 16 Product Description Codes

Code Channels per constellation Description

6300-0058 8 GSS6300M GPS Multi Channel(8ch) Simulator System (MS3085)

6300-0060 8 GSS6300M GPS / GLONASS Multi-Channel(8ch) Simulator System (MS3085)

6300-0062 8 GSS6300M GPS / GALILEO Multi Channel(8ch) Simulator System (MS3085)

6300-0066 8 GSS6300M Beidou / GPS Multi-Channel(8ch) Simulator (MS3085)

6300-0067 8 GSS6300M Beidou /GPS/ GLO Multi-Channel(8ch) Simulator (MS3085)

6300-0068 8 GSS6300M Beidou /GPS/ GLO/ Gal Multi-Channel(8ch) Simulator (MS3085)

6300-0158 4 GSS6300M GPS Multi Channel(4ch) Simulator System (MS3085)

6300-0160 4 GSS6300M GPS / GLONASS Multi-Channel(4ch) Simulator System (MS3085)

6300-0162 4 GSS6300M GPS / GALILEO Multi Channel(4ch) Simulator System (MS3085)

6300-0166 4 GSS6300M Beidou / GPS Multi-Channel(4ch) Simulator (MS3085)

6300-0168 4 GSS6300M Beidou /GPS/ GLO/ Gal Multi-Channel(4ch) Simulator (MS3085)

6300-4001 NA SimCHAN software enhancement pack

16 Upgrade configurations will be confirmed during quote\order process. Please contact your nearest Spirent representative for more information.



Additional configurations and upgrade codes are available. Existing GSS6300 customers can also upgrade their existing units in the field to multi-channel GSS6300M capability. Please contact Spirent for further information.