Gps time from uc20g is false.
Dear Oao，
Thanks for your inquiry in Quectel forum.
Could you help to provide more information to us to analyze your issue, like your test log that can prove the GPS time is false. Thanks!
This is the problem exactly, it shows 2000 year date.
$GPRMC,111533.0,A,4059.973549,N,02852.765405,E,9.7,70.4,280600,A*5E
$GPGSV,3,2,11,15,43,302,37,17,33,136,38,19,18,157,35,30,41,075,45*76
$GPGSV,3,3,11,35,24,20,01,326,24,05,282,*76
$GPRMC,111534.0,A,4059.974510,N,02852.768539,E,9.7,70.2,280600,A*57
$GPGSA,A,2,05,07,13,15,17,19,28,30,1.4,1.1,0.9*3C
$GPGSV,3,1,11,05,17,217,38,07,11,088,37,13,76,291,35,15,43,302,38*72
$GPVTG,72.5,T,72.5,M,8.9,N,16.4,K,A*11
Check it please.
It is also written there. And it is your mistake. I have device on field. How can we solve it. We must able to fix it by AT command. We must able to update firmware with AT command. Otherwise it is a big problem.
Dear SmartEq,
Thanks for your inquiry in Quectel forum. Sorry about that bring any inconvenience for you. Actually, after we find this issue, we already ask our local FAE and sales to send the following statement and solution document to customers who purchase our module through official channels. Anyway, you have not receive such documents, it is our mistake. Sorry about that.
Please check the following document to find the suitable solution for your application. If you want to upgrade the firmeware, please send email to support@quectel.com to get the package and local support. Thanks!
Quectel_UC20_Time_Synchronization_Application_Note_V1.0.pdf (237.1 KB)
Quectel_UC20_GNSS_Week_Number_Rollover_Statement.pdf (170.9 KB)