The KiwiSDR 2 online store is open for orders! Please visit kiwisdr.nz
QZSS Support [GPS, added in v1.170]
Is it possible to support QZSS reception on KiwiSDR's GPS receiver ?
Thanks for all experts.
QZSS (Quasi-Zenith Satellite System) is a Japanese satellite positioning system and compatible with GPS L1C/A code. So the QZSS is sometimes called the Japanese GPS.
In Japan, there is not a sufficient number of GPS satellites to perform high-precision positioning constantly.
Currently, four satellites on QZSS will be visible at all times from locations in the Asia-Oceania regions. (PRN 193,194,195 & 199GEO)
If QZSS can be used in an integrated way with GPS, ensuring a sufficient number of satellites for stable, high-precision positioning in the Asia-Oceania regions.
Thanks for all experts.
Comments
Thank you for your quick work.
Now PRN 193,194 & 195 can be received. (See attached image file)
PRN199(GEO) seems to be unusable due to some obstacle now.
http://sys.qzss.go.jp/dod/en/naqu.html
Since GEO has been newly added to the QZSS specification, there is currently no commercial equipment that can be received.
Therefore, if PRN199 can be received by Kiwi SDR, it is probably the world's first available GPS device in general.
I'm paying considerable attention to that point now.
Attachments:
https://forum.kiwisdr.com/uploads/Uploader/72/f52d80f4cd391ca0263921e8d41bf9.jpg
Attachments:
https://forum.kiwisdr.com/uploads/Uploader/84/3775fb7c5ebde9cfd01d3b3e792d43.jpg
Attachments:
https://forum.kiwisdr.com/uploads/Uploader/8d/8b860ba7dbed34e7006da4085250fe.jpg
Attachments:
https://forum.kiwisdr.com/uploads/Uploader/08/933d14b9cfedc0db7231bb2e2eafd1.jpg
PRN199(QZS-3) is still inactive.
I can not see the prospect of recovery.
BTW,
Currently four PRNs (193-195, 199) are in operation.
Other PRNs (196-198, 200-202) will not be used for a while.
It will be around 2023 at the earliest.
http://qzss.go.jp/en/overview/services/sv01_what.html
Therefore, these PRNs may be excluded from the search target in order to speed up acquisition.
Attachments:
https://forum.kiwisdr.com/uploads/Uploader/73/3f83cf457e089180be2160299b7b15.jpg
Attachments:
https://forum.kiwisdr.com/uploads/Uploader/f0/8356566f990d26ee1a53fa3385199c.jpg
Attachments:
https://forum.kiwisdr.com/uploads/Uploader/92/f01a7062f4c8351d60a820bd90cb7f.jpg