GPS Rollover on Android SmartphonesWhat is assisted GPS?Talking GPS software for Android?Relative GPS...
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GPS Rollover on Android Smartphones
What is assisted GPS?Talking GPS software for Android?Relative GPS accuracy?GPS location logSuspicious GPS behaviourGPS automatically turns onGPS in FreefallRetrieve GPS DataAccess raw GPS signalGPS location problem
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Regarding the GPS weeks rollover which took place on April 06th 2019. all the websites are talking about the phenomenon but they are not explaining what are the side effects on end users devices if the week number will be 0000.
How an Android smartphone GPS users could be affected regarding this rollover from 1023 to 0000 weeks ?
Regards
gps bugs
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
add a comment |
Regarding the GPS weeks rollover which took place on April 06th 2019. all the websites are talking about the phenomenon but they are not explaining what are the side effects on end users devices if the week number will be 0000.
How an Android smartphone GPS users could be affected regarding this rollover from 1023 to 0000 weeks ?
Regards
gps bugs
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
add a comment |
Regarding the GPS weeks rollover which took place on April 06th 2019. all the websites are talking about the phenomenon but they are not explaining what are the side effects on end users devices if the week number will be 0000.
How an Android smartphone GPS users could be affected regarding this rollover from 1023 to 0000 weeks ?
Regards
gps bugs
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
Regarding the GPS weeks rollover which took place on April 06th 2019. all the websites are talking about the phenomenon but they are not explaining what are the side effects on end users devices if the week number will be 0000.
How an Android smartphone GPS users could be affected regarding this rollover from 1023 to 0000 weeks ?
Regards
gps bugs
gps bugs
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
asked 15 hours ago
Abdelhafid MadouiAbdelhafid Madoui
541321
541321
add a comment |
add a comment |
1 Answer
1
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From what I know the rollover is not the only problem, also the week counter is increased from 10 to 13 bits. A new data format (with larger data) can of course cause problems if unsupported by the GPS receiver firmware.
Also I have read that some GPS devices use the week counter for plausibility checking of the received data. If the week is smaller than the manufacturing week the data have to be invalid so the simple but bad logic. After the roll-over it will simply reject all incoming data as the receiver thinks that the received data is invalid (e.g. because of radiointerference).
answered 14 hours ago
RobertRobert
3,42921829
"the week counter is increased..." makes it sound like the 10-bit week code is changing. That's not happening. The legacy (ICD-200) message continues to encode a 10-bit week number. There are additional messages (such as in the CNAV data) that transmit a 13-bit week number for newer equipment to read. There's no compatibility issue for older equipment.
– BowlOfRed
11 mins ago
add a comment |
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1 Answer
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1 Answer
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oldest
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votes
From what I know the rollover is not the only problem, also the week counter is increased from 10 to 13 bits. A new data format (with larger data) can of course cause problems if unsupported by the GPS receiver firmware.
Also I have read that some GPS devices use the week counter for plausibility checking of the received data. If the week is smaller than the manufacturing week the data have to be invalid so the simple but bad logic. After the roll-over it will simply reject all incoming data as the receiver thinks that the received data is invalid (e.g. because of radiointerference).
answered 14 hours ago
RobertRobert
3,42921829
"the week counter is increased..." makes it sound like the 10-bit week code is changing. That's not happening. The legacy (ICD-200) message continues to encode a 10-bit week number. There are additional messages (such as in the CNAV data) that transmit a 13-bit week number for newer equipment to read. There's no compatibility issue for older equipment.
– BowlOfRed
11 mins ago
add a comment |
From what I know the rollover is not the only problem, also the week counter is increased from 10 to 13 bits. A new data format (with larger data) can of course cause problems if unsupported by the GPS receiver firmware.
Also I have read that some GPS devices use the week counter for plausibility checking of the received data. If the week is smaller than the manufacturing week the data have to be invalid so the simple but bad logic. After the roll-over it will simply reject all incoming data as the receiver thinks that the received data is invalid (e.g. because of radiointerference).
answered 14 hours ago
RobertRobert
3,42921829
"the week counter is increased..." makes it sound like the 10-bit week code is changing. That's not happening. The legacy (ICD-200) message continues to encode a 10-bit week number. There are additional messages (such as in the CNAV data) that transmit a 13-bit week number for newer equipment to read. There's no compatibility issue for older equipment.
– BowlOfRed
11 mins ago
add a comment |
From what I know the rollover is not the only problem, also the week counter is increased from 10 to 13 bits. A new data format (with larger data) can of course cause problems if unsupported by the GPS receiver firmware.
Also I have read that some GPS devices use the week counter for plausibility checking of the received data. If the week is smaller than the manufacturing week the data have to be invalid so the simple but bad logic. After the roll-over it will simply reject all incoming data as the receiver thinks that the received data is invalid (e.g. because of radiointerference).
answered 14 hours ago
RobertRobert
3,42921829
From what I know the rollover is not the only problem, also the week counter is increased from 10 to 13 bits. A new data format (with larger data) can of course cause problems if unsupported by the GPS receiver firmware.
Also I have read that some GPS devices use the week counter for plausibility checking of the received data. If the week is smaller than the manufacturing week the data have to be invalid so the simple but bad logic. After the roll-over it will simply reject all incoming data as the receiver thinks that the received data is invalid (e.g. because of radiointerference).
answered 14 hours ago
RobertRobert
3,42921829
answered 14 hours ago
RobertRobert
3,42921829
answered 14 hours ago
RobertRobert
3,42921829
answered 14 hours ago
RobertRobert
3,42921829
3,42921829
"the week counter is increased..." makes it sound like the 10-bit week code is changing. That's not happening. The legacy (ICD-200) message continues to encode a 10-bit week number. There are additional messages (such as in the CNAV data) that transmit a 13-bit week number for newer equipment to read. There's no compatibility issue for older equipment.
– BowlOfRed
11 mins ago
add a comment |
"the week counter is increased..." makes it sound like the 10-bit week code is changing. That's not happening. The legacy (ICD-200) message continues to encode a 10-bit week number. There are additional messages (such as in the CNAV data) that transmit a 13-bit week number for newer equipment to read. There's no compatibility issue for older equipment.
– BowlOfRed
11 mins ago
"the week counter is increased..." makes it sound like the 10-bit week code is changing. That's not happening. The legacy (ICD-200) message continues to encode a 10-bit week number. There are additional messages (such as in the CNAV data) that transmit a 13-bit week number for newer equipment to read. There's no compatibility issue for older equipment.
– BowlOfRed
11 mins ago
"the week counter is increased..." makes it sound like the 10-bit week code is changing. That's not happening. The legacy (ICD-200) message continues to encode a 10-bit week number. There are additional messages (such as in the CNAV data) that transmit a 13-bit week number for newer equipment to read. There's no compatibility issue for older equipment.
– BowlOfRed
11 mins ago
add a comment |
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