官网通知
2019/04/03
Declaration of GPS week rollover issue
Dear customer,
Thank you very much for choosing SIMCom modules
We:
Shanghai SIMCom Wireless Solutions Ltd.
Declare that there is no GPS week rollover issue (refer to Appendix) on the modules listed below until the date marked.
Module No |
FW |
When the week rollover issue would occur |
SIM5320 Series |
All FW versions |
2019/11/3 |
SIM5360 Series |
All FW versions |
|
SIM7100 Series |
All FW versions |
|
SIM68R |
B03V00SIM68R11,B03V10SIM68R11 |
2022/10/29 |
B03V11SIM68R_11/96 ~ B03V23SIM68R_11/96 |
||
SIM68RB |
B03V60SIM68RB 11/96,B03V61SIM68RB96 |
|
SIM68V |
B03V00SIM68V_11, B03V10SIM68V_11,B03V21SIM68V_38 |
|
B03V11SIM68V_11/96 ~ B03V23SIM68V_11/96 |
||
SIM68VB |
B03V60SIM68VB11/96,B03V61SIM68VB11 |
|
SIM968 |
B03V11SIM968_11,B03V20SIM968_11 |
|
SIM33ELA |
B03V20SIM33ELA1/9 ~ B05V83SIM33ELA1/9 |
2025/8/16 |
SIM33EAU |
B05V82SIM33EAU1/9 |
|
SIM68E |
B03V60SIM68E_96 ~ B05V84SIM68E_96 |
|
B04V62SIM68E_11 ~ B05V84SIM68E_11 |
||
B04V64SIM68E3D9 ~ B05V81SIM68E3D9 |
||
SIM68M |
B03V20SIM68M_11/96 ~ B05V81SIM68M_11/96 |
|
SIM68MB |
B03V62SIM68MB11/96 ~ B05V80SIM68MB11/96 |
|
SIM68R |
B03V24SIM68R_11/96 ~ B05V80SIM68R_11/96 |
|
SIM68RB |
B03V62SIM68RB1A/9A |
|
B03V62SIM68RB11/96 ~ B04V61SIM68RB11/96 |
||
SIM68V |
B04V64SIM68V48P |
|
B04V62SIM68V_11/96 ~ B05V85SIM68V_11/96 |
||
SIM68VB |
B03V62SIM68VB_11/96 ~ B04V60SIM68VB_11/96 |
|
B04V61SIM68VBD9 ~ B05V81SIM68VBD9 |
||
B05V82SIM68VB9B |
||
SIM968 |
B03V21SIM968_96,B04V60SIM968_11/96,
B05V20SIM968_J1,B05V81SIM968_11 |
|
B04V60SIM968B11/96 ~ B04V61SIM968B11/96 |
||
SIM808 |
All FW versions |
2030/8/10 |
SIM28ML |
All FW versions |
|
SIM28ML-H |
All FW versions |
|
SIM28M |
All FW versions |
|
SIM28 |
All FW versions |
|
SIM928A |
All FW versions |
|
SIM39EAR |
All FW versions |
|
SIM39EAU |
All FW versions |
|
SIM39EA |
B02V32SIM39EA48,B02V60SIM39EA11/96/19 |
|
B02V50SIM39EA19 ~ B02V51SIM39EA19 |
||
B02V31SIM39EA11 ~ B02V32SIM39EA11 |
||
B02V10SIM39EA96 ~ B02V51SIM39EA96 |
||
SIM7500 Series |
All FW versions |
2032/12/12 |
SIM7600 Series |
All FW versions |
|
SIM7800 Series |
All FW versions |
|
SIM7000 Series |
All FW versions |
|
SIM868 |
All FW versions |
2034/8/12 |
SIM868E |
All FW versions |
|
SIM68E |
B06V11SIM68E_11/96 ~ B06V14SIM68E_11/96 |
|
SIM68M |
B05V83SIM68M_11 |
|
B06V11SIM68M_11/96 ~ B06V14SIM68M_11/96 |
||
SIM68MB |
B06V10SIM68MB11/96 ~ B06V11SIM68MB11/96 |
|
SIM68R |
B06V10SIM68R_11/96 ~ B06V11SIM68R_11/96 |
|
SIM68RB |
B05V10SIM68RB11/96 ~ B06V11SIM68RB11/96 |
|
SIM68V |
B06V10SIM68V_11/96 ~ B06V11SIM68V_11/96 |
|
SIM68VB |
B06V10SIM68VB11/96 ~ B06V11SIM68VB11/96 |
|
SIM33ELA |
B06V10SIM33ELA1/9 ~ B06V11SIM33ELA1/9 |
|
SIM33EAU |
B06V10SIM33EAU1/9 ~ B06V11SIM33EAU1/9 |
|
SIM39EA |
B02V60SIM39EA11/96/19 |
2035/9/8 |
Appendix
What is GPS week rollover issue?
The Week Rollover Problem is a known issue caused by the way that GPS used to handle the week element of the data that forms an essential part of the navigation signal. GPS used a 10 bit field to encode the week number in each GPS time message, which means that a maximum of 1,024 weeks (19.7 years), could be handled. Each of these periods is known in GPS terms as an “epoch”.
At the end of each epoch of 1,024 weeks, the receiver resets the week number to zero and starts counting again.
全球领先的M2M模块及解决方案供应商
芯讯通无线科技有限公司(SIMCom Wireless Solutions)作为日海智能(深股002313)控股子公司,是全球领先的M2M模块及解决方案供应商。自2002年成立以来,一直致力于提供GSM/GPRS/EDGE,WCDMA/HSPA/HSPA+,CDMA 1xRTT/EV-DO,FDD/TDD-LTE,eMTC(CAT-M1) ,NB-IoT无线蜂窝通信以及GPS/GLONASS/BEIDOU卫星定位等多种技术平台的模块或终端级别解决方案。根据美国知名市场研究公司ABI Research Inc.最新的M2M报告显示,芯讯通无线通信模块销售量连续三年占全球领先地位。
+ 了解更多2019第十二届国际物联网博览会-深圳站
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2019第十二届国际物联网博览会-深圳站
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