2012 Leap Second Service Bulletin API Development Kit with CrossWorks for ARM Changes to BeiDou Signals in TerraStar-NRT Service for Waypoint Changes to L-Band Coverage - December 19, 2018 CORS FTP Server Changing to HTTPS Effect of Ionospheric Activities on GNSS Positioning End of Life for Various ANT-series Antennas End of life for OEM-IMU-ADIS-16488 announced Firmware manual error affecting TerraStar contract end date log Hexagon | NovAtel Announces Firmware Release Version 7.08.01 GLONASS Day Number Rollover GLONASS Enabled OEM Cards and the Dec. 31st 2016 Leap Second GLONASS Enabled OEM Cards and the June 30th 2015 Leap Second GLONASS Enabled OEM Cards and the June 30th 2015 Leap Second Service Bulletin GLONASS Frequency Change GLONASS Service Alert GLONASS Service Alert - RESOLVED GPS Era Issue for OEMV GPS Era Week Rollover - 2019 Hexagon | NovAtel announces 7.08.10 firmware 7.08.14 firmware release announced Hexagon | NovAtel announces 7.08.15 firmware Hexagon | NovAtel announces 7.09.00 firmware with PTP functionality Hexagon | NovAtel announces 7.09.01 and 7.09.02 firmware Hexagon | NovAtel announces Encode Decode Interface Engine software development kit Hexagon | NovAtel Announces End of Life for NovAtel Connect and NovAtel Convert Hexagon | NovAtel Announces End of Life for OEMStar & Ag-star Family of Products Hexagon | NovAtel Announces End of Life for first-generation CPT7 enclosure, HG4930 AN01 IMU, and associated cables KVH-1750 IMU end of life announced Hexagon | NovAtel Announces End of Life for Terrain Compensation Software Model on SMART7 Variant Hexagon | NovAtel announces new CPT7 variants NovAtel Application Suite 2.0 with GRIT Monitor announced Hexagon | NovAtel announces Version 3.00 of its Encode Decode Interface Engine Hexagon | NovAtel Announces Version 8.90.4416 release for Waypoint Post-Processing Products Hexagon | NovAtel® Announces Version 8.90 for Waypoint® Post-Processing Products Hexagon | NovAtel announces Version 9.00.2207 of its Waypoint Post-Processing Software Portfolio Hexagon | NovAtel announces Version 9.00 of its Waypoint Post-Processing Software Portfolio Hexagon | NovAtel® Delivers OEM7® Driver Built on Robot Operating System Invitation to NovAtel Application Suite beta for OEM7 Users Leap Second Insertion on Dec 31 Legacy Firmware Incompatibility with Russian SBAS SDCM PRN 140 New OEM4 Firmware Special for OmniSTAR HP 4.28 Library New OEM4 SPAN Firmware Special for new OmniSTAR Libraries New OmniSTAR Serial Numbers for OEMV family products Notification of End of Life for OEM625 Receiver Cards NovAtel Announces CMA-4048 LGR Business Transition to CMC Electronics NovAtel Announces End of Life for FLEX6 and FLEX6D NovAtel Announces End of Life for GPS-701, GPS-702, GPS-703 and GPS-704 Series Antennas NovAtel Announces End of Life for Multiple OEM6® Receiver Boards NovAtel Announces End of Life for Multiple OEM617D Receiver Boards NovAtel Announces End of Life for NGS Antennas, Tan and Olive Antennas NovAtel Announces End of Life for OEM638 and OEM638V Receiver Boards NovAtel Announces End of Life for ProPak6 and ProPak6D NovAtel Announces End of Life for ProPak6V NovAtel Announces End of Life for RELAYN-400, RELAYN-900 and RELAYN-HSPA NovAtel Announces End of Life for SMART6 Family of Products NovAtel Announces End of Life for SPAN-IGM-A1/S1 and IMU-IGM-A1/S1 NovAtel Announces End of Life for the MEMS Interface Card (MIC) NovAtel Announces End of Life for various Antennas NovAtel Announces End of Life for WAAS G-II Reference Receiver NovAtel Announces End of Life for Waypoint USB License Keys for GrafNav/GrafNet and Inertial Explorer NovAtel Announces End of Life Notice for FlexG2-Star NovAtel Announces End of Life Notice for SPAN-CPT and SPAN-CPTNC NovAtel Announces End of Life for GNSS-501 and GPS-703-GGG-HV-N antennas NovAtel Announces Firmware Release Version 7.04.00 NovAtel® Announces Firmware Release Version 7.07.03 NovAtel Announces Firmware Release Version 7.07.04 7.08.00 firmware release announced NovAtel® Announces Firmware Release Version OM7MR0504RN0000 (7.05.04) NovAtel Announces Near Real Time (NRT) Precise Satellite Clock and Orbit Data in Version 8.70.6912 of GrafNav and Inertial Explorer Post Processing Software NovAtel Announces New Connect™ PC Application NovAtel Announces OEM6™ Firmware Version 6.1 Hexagon | NovAtel announces release of NovAtel Application Suite NovAtel Announces SMART7 7.06.01 Firmware Update NovAtel® Announces SMART7-SI™ NovAtel® Announces Support of New TerraStar-X Correction Services Across Multiple Products NovAtel Announces TerraStar-C PRO and RTK ASSIST PRO in 7.05.00 Firmware NovAtel® Announces the PwrPak7-E2™ and PwrPak7D-E2™ Enclosures for High Performance Solutions NovAtel Announces the RELAY7 RTK Rover Radio Module NovAtel Announces Version 8.80 for Waypoint® Post-Processing Products NovAtel Inc. Announces Firmware Release Version OM7MR0200RN0000 (7.200) for the OEM729, OEM719 and OEM7700 Along with NovAtel Connect 2.0 and Convert 2.0 NovAtel Inc. Announces Firmware Release Version OM7MR0300RN0000 (7.03.00) NovAtel Inc. Announces New Functionality and Features on SPAN® Platforms NovAtel Inc. Announces New SPAN™ Firmware Release for SPAN-SE/OEM-SPAN-SE/MPPC™ NovAtel Inc. Announces New SPAN™ for OEMV™ Firmware Release NovAtel Inc. Announces New SPAN™ GNSS/INS Receiver Firmware for its SPAN-SE™ Products NovAtel® Inc. Announces OEM6® Firmware Release (6.400) NovAtel® Inc. Announces OEM6® Firmware Release 6.510 NovAtel Inc. Announces OEM628, FlexPak6 and SMART6-L Firmware Version 6.700 NovAtel Inc. Announces OEM6TM Firmware Release OEM060210RN0000 (6.210) NovAtel Inc. Announces OEMStar™ Firmware Release 1.102 NovAtel Inc. Announces OEMStar™ Firmware Version 1.101 NovAtel Inc. Announces SPAN® on OEM638TM and ProPak6TM Firmware Release NovAtel Inc. Announces SPAN on OEMV and SPAN-CPT Firmware Releases SPAN3.912 and CPT3.912 NovAtel Inc. Announces the Release of SMART7 in ES7PR0501RN0000 (7.05.01) Hexagon | NovAtel introduces a Wi-Fi-free variant to the PwrPak7 series NovAtel launches MobileCDU software, a handheld solution for in-field communication with the DL-V3 GNSS receiver NovAtel® Service Alert - Galileo System Advisory NovAtel Service Alert - Updates to the Active EGNOS SBAS PRNs NovAtel's Waypoint Products Group Announces Version 8.70 of our Post-Processing Products NovAtel's Waypoint Products Group is pleased to announce version 8.60 OEM4 Receivers will be Reporting Inaccurate Week Numbers Starting September 24, 2022 OEM6® Firmware Version 6.600 Now Available OEM615-1 HW Product Change Notice OEM7 MSM Messages Issue OEMStar™ Firmware Release 1.011 OEMV-3 Product Non-Compliance Notice OEMV Firmware Release 3.620 OEMV Firmware Release 3.800 OEMV GLONASS Service Bulletin OEMV GLONASS Service Bulletin OmniSTAR HP 4.27 Frequency and Broadcast Format Changes OmniSTAR Satellite Replacement in Q1 Possible NVM Issues for OEM6 Products with <6.600 firmware Product Change Notice: OEM719 & variants Product Change Notice: SMART7, SMART7-W and SMART7-I variants Release Notes for NovAtel ConnectTM Version 1.2.0 Release Notes for NovAtel Connect Version 1.1.0 RESOLVED: Galileo Service Alert - UPDATE SPAN-CPT Firmware Release 3.620 SPAN Firmware Release 3.044 SPAN Firmware Release 3.620 SPAN-SE Firmware Release SPAN-SE Redistributes Power to Pin4 on Serial Com Port Lines SPAN-SE SCD000100RN0000 Firmware Release TerraStar Beam 143.5E Outage TerraStar and Oceanix L-Band Beam Table Revision Support Bulletin: TerraStar & Oceanix POR Beam End of Life TerraStar Beam IOR Maintenance Notification TerraStar L-Band Frequency Change - AORW Frequency Update TerraStar L-Band Frequency Changes Scheduled for March 15, 2018 TerraStar L-Band Frequency Changes Scheduled for March 2018 TerraStar L-Band Frequency Changes Scheduled for Q1 2018 Updates to L-Band Tracking Functionality on OEM6 and OEM7 Receivers Updates to support ITRF2020 datum in TerraStar-NRT Service for Waypoint Updates to the Active EGNOS SBAS PRNs Updates to the Active WAAS SBAS PRNs Version 8.40 of Waypoint® Post-Processing Software Now Available WAAS GUS Type-1 Receiver 2019 GPS Week Rollover Waypoint FTP Access and Licensing Server Outage Waypoint FTP Access and Licensing Server Outage Waypoint FTP Access and Licensing Server Outage Waypoint Licensing Server Upgrade Waypoint Migration from FTP to SFTP Server Waypoint RINEX Conversion Error Support Search

OEM4 Receivers will be Reporting Inaccurate Week Numbers Starting September 24, 2022

17 dezembro 2021

OEM4 receivers were first introduced to the market over two decades ago, providing high precision, dual constellation, dual frequency multi channel GNSS receivers to the world.  OEM4s were subsequently end-of-life’d in 2006 and reached end of service in 2011.  Due to the high quality of the OEM4 receivers, some receivers are still in service over 20 years later.  However, as of September 24, 2022, OEM4 receivers will start reporting a GPS week number in the past.  While the receivers will continue to operate, this may cause interoperability issues with receivers that are reporting a different week number.

Background:
GPS Time is reported in weeks since January 6, 1980.  The GPS ICD defined navigation data format limits the number of weeks before a rollover to 1023.  This means that roughly every 19 years the GPS week goes back to zero and starts incrementing again.  This “era” rollover happened in 1999, and again on April 6, 2019.

In order to help the receiver determine the actual calendar date, NovAtel has historically pre-configured a date as a reference to figure out the current GPS “era”.  From time to time, NovAtel has updated the pre-configured date in a new firmware version to allow the receiver to determine the correct era for the next 10-18 years.  This allowed the NovAtel receivers to successfully transition over the era rollover that happened on April 6, 2019.

What happens when the receiver base week is not valid?
When the receiver’s base week is no longer valid, the receiver will continue to operate and output a correct position.  However, the GPS week reported by the receiver will be incorrect.  This may impact receiver operation if it is interacting with an external system that is sending data with a different GPS week number as there will be a time mismatch.

When will this be an issue?
OEM4:  The latest firmware on the OEM4 family of receivers is 2.322, with a current base week that is valid until September 24, 2022, 11 years beyond the end of service date.  Customers still using OEM4s are encouraged to upgrade to the latest NovAtel platform (OEM7) prior to September 2022. 

For more information on the latest products to replace the OEM4, visit:
https://novatel.com/products/receivers/gnss-gps-receiver-boards