Need help?Do you have a question about the Jackson Labs Micro-JLT GNSS and is the answer not in the manual?
General| Update Rate | Up to 10 Hz |
|---|---|
| Cold Start | 29 s |
| Tracking Sensitivity | -167 dBm |
| Reacquisition Sensitivity | -160 dBm |
| Operating Temperature | -40°C to +85°C |
| PPS Output | Yes |
| Frequency Bands | L1, L2 |
| GNSS Support | GPS, GLONASS, Galileo, BeiDou |
| Accuracy | 1.5m (RMS) |
| Input Voltage | 3.3V ±5% |
| Protocols | NMEA, RTCM |
| Interfaces | UART, USB, SPI, I2C |
Introduces the Micro-JLT GNSS board, its features, and applications.
Details general safety measures for operating the instrument.
Details using a UL approved lightning protector for the GNSS antenna.
Emphasizes discharging static charge to a good ground source.
Advises on connecting DC power with correct polarity to avoid damage.
Specifies indoor use, humidity limits, and altitude operation.
Provides step-by-step instructions for powering on the unit.
Shows the Micro-JLT GNSS PCB connectors and indicators.
Presents mechanical dimensions and pinout of the PCB.
Discusses J1 connector pinout and signal interfacing requirements.
Details the SMA female connectors for GNSS antenna and 10MHz.
Details the power input voltage and current specifications.
Explains the ability to track multiple GNSS systems simultaneously.
Instructions for connecting the GNSS antenna.
Details controlling the unit via RS-422/TTL serial port.
Explains adjustment of servo loop parameters for performance tuning.
Explains access to the SCPI subsystem via RS-422/TTL serial.
Lists basic SCPI commands for quick testing and exploration.
Lists basic SCPI commands for quick testing and exploration.
Queries the instrument's identification string (manufacturer, model, etc.).
Returns a list of available SCPI commands for the GNSDO.
Regroups commands for GNSS receiver control and status.
Commands describing the satellite constellation.
Queries the number of satellites being tracked.
Queries the number of predicted visible satellites.
Details NMEA message output for navigation applications.
Configures the output of NMEA GGA messages.
Configures a modified NMEA GGA message with lock-state.
Configures the output of NMEA GLL messages.
Configures the output of NMEA RMC messages.
Configures the output of NMEA GSA messages.
Configures the output of NMEA GSV messages.
Enables 3D velocity vector output in ECEF coordinates.
Configures the output of NMEA VTG messages.
Configures the output of NMEA ZDA messages.
Configures output of NMEA PASHR string for compatibility.
Configures proprietary NMEA string for GNSDO telemetry.
Configures proprietary NMEA string for 3D velocity and time.
Selects dynamic motion model for Kalman filters.
Configures automatic Kalman filter based on mission velocities.
Queries the current dynamic model applied to the GNSS receiver.
Allows bi-directional shifting of 1PPS output for delay compensation.
Returns the momentary sawtooth correction factor.
Resets the internal GNSS receiver.
Selects the Timing Mode of the GNSS receiver.
Starts a survey to calculate and store the Hold position.
Sets the minimal duration for the survey.
Specifies minimum variance for survey position calculation.
Manually specifies the unit's exact position in NVRAM.
Queries the current status of the survey.
Sets the internal RTC date manually in GPS-denied environments.
Sets the internal RTC time manually in GPS-denied environments.
Selects GNSS systems for timing and positioning information.
Provides GNSS signal jamming-indicator.
Queries and returns the firmware version of the GNSS receiver.
Displays GNSS receiver configuration, position, speed, and height.
Subsystem for gyro-related commands.
Manages time-related commands.
Queries the current calendar date.
Queries the current 24-hour time.
Queries the current 24-hour time suitable for display.
Queries the synchronization interval.
Supports auto-initialization of time and date between units.
Returns results of leapsecond pending, accumulated, date, duration.
Checks for future pending leap second data.
Returns the applied leapsecond offset between GPS and UTC time.
Returns the date of the pending leap second.
Returns the duration of the last minute of the day during a leap second.
Manages time-stamping of GPS and external PPS sources.
Configures time-stamp recording and storage modes.
Configures the source of PPS signals for time-stamping.
Selects the PPS offset source to print when in DIFF mode.
Enables or disables the time-stamping filter.
Specifies max time-stamps stored per second.
Specifies max time-stamps stored within one pulse period.
Returns the most recent time-stamp of a PPS signal.
Returns all 100 most-recent time-stamps.
Restarts time-stamping and resets all stored time-stamps.
Returns the current time-stamp mode and source.
Returns results of multiple PTIME queries at once.
Manages synchronization of the unit with the GNSS receiver.
Returns duration of holdover or recent holdover processes.
Manually enters or exits the holdover state.
Disables forced holdover and resumes normal GPS locking.
Selects the source mode for synchronization.
Configures the triggering edge of the external PPS input source.
Returns the state of the SYNC:SOUR:MODE command.
Returns the current holdover state (NONE, MANUAL, ON).
Returns the difference or timing shift of 1PPS signals.
Selects the 1PPS phase-offset threshold for counter-reset.
Initiates a near-instantaneous alignment of GNSS and receiver 1PPS.
Returns the Frequency Error Estimate.
Returns the lock state of the PLL controlling the OCXO.
Allows 1PPS signal generation upon power-on without antenna.
Returns the state of the SYNC:OUT:1PPS:RESET command.
Configures the 1PPS active high pulse width.
Returns hexadecimal number indicating system health status.
Returns results of multiple Synchronization queries.
Queries related to the diagnostic of the OCXO.
Returns EFC output value of the internal reference oscillator.
Returns EFC output value in volts.
Returns the number of hours the unit has been powered-on.
Returns results of relative oscillator, absolute oscillator, and lifetime.
Queries measured parameters on-board the Micro-JLT GNSS .
Returns the EFC voltage applied to the OCXO.
Returns the power supply voltage applied to the board.
Returns the power supply voltage applied to the OCXO.
Returns results of voltage, powersupply, and OCXO powersupply queries.
Manages general configuration of the Micro-JLT GNSS .
Enables/disables echo on RS-422/TTL SCPI serial port.
Enables/disables the "scpi>" prompt on SCPI command lines.
Sets the RS-422/TTL serial speed for SCPI serial port.
Returns a full page of GNSS status in ASCII format.
Applies Factory Reset settings to the EEPROM.
Resets the Micro-JLT GNSS processor.
Resets the processor to enter In System Programming (ISP) mode.
Adjusts the servo loop parameters.
Enables FASTLOCK mode and sets its gain parameter.
Adjusts the length of time the FASTLOCK feature is active.
Sets the coarse DAC that controls the EFC.
Command used for factory setup only.
Controls the Proportional part of the PID loop.
Sets the Low Pass filter effectiveness of the DAC.
Determines the sign of the slope between EFC and frequency variation.
Coefficient for compensating OCXO drift due to aging.
Sets the Integral part of the PID loop.
Sets the 1PPS signal's offset to UTC.
Sets the period in seconds for debug trace.
Returns results of multiple SERVO queries.
Introduces the firmware upgrade tutorial.
Guides installation of JLTerm and Flash Magic utilities.
Details methods to enter ISP mode for firmware upgrades.
Instructions on downloading the latest firmware file.
Step-by-step guide for firmware download using JLTerm.
Guide for firmware download using the Flash Magic utility.
Confirms successful firmware update via ID string or *IDN? command.
Describes the GPSCon utility's purpose and compatibility.
Guides the installation process for GPSCon.
Overview of GPSCon's features and functionality.
Explains how to configure GPSCon session options.
Sets communication parameters like COM port and baud rate.
Configures auxiliary measurements and trace positions.
Configures trace labels and vertical plot ranges.
Manually sends SCPI commands via a drop-down box.
Explains mouse interaction for zooming and scrolling graphs.
Controls export function for graph and satellite trails map images.
Shows an example of acquired data plot over 200 hours.
Displays a zoomed view of captured data.
Certifies product met specifications at shipment.
Covers defects in material and workmanship for one year.
Excludes defects from improper maintenance, misuse, etc.
States customer's sole and exclusive remedies.
Provides a table detailing revisions and their dates.
To Next Page
