[IGSSTATION-9178] Manual reconfiguration of Javad receivers for BDS-3 tracking

[Peter.Steigenberger at dlr.de]

Dear operators of Javad receivers,

as announced in the two IGSMAILs

https://lists.igs.org/pipermail/igsmail/2026/008677.html
https://lists.igs.org/pipermail/igsmail/2026/008682.html

BeiDou is currently decommissioning several BDS-2 satellites and shifting PRNs of BDS-3 satellites to the former PRNs of these decommissioned satellites.

The first reallocation took place last Friday: BDS-3 satellite SVN C220 was switched from C38 to C06, see https://www.bdsupport.cn/notice/noticeDetail?id=1002&lang=en
Another three reallocations are scheduled for tomorrow, 17-Apr-2026: https://lists.igs.org/pipermail/igsmail/2026/008685.html

Javad receivers have by default allocated PRNs C01,...,C18 to BDS-2. Thus, only BDS-2 signals are tracked for C06 at the moment.

This default configuration can be changed to BDS-3 by the following GREIS command:

    set,lock/bei/phase3/6,y

Please execute this command at your earliest convenience in order to track all BDS-3 signals of PRN C06.

Please execute the following three commands earliest at Friday evening to account for the PRN reallocations happening on 17-Apr-2026:

    set,lock/bei/phase3/2,y
    set,lock/bei/phase3/7,y
    set,lock/bei/phase3/8,y

I will inform you about future PRN reallocations, as soon as their date is announced.

Best regards,

Peter


----------------------------------------------------
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
German Space Operations Center
Münchener Strasse 20, D-82234 Wessling, Germany

Peter Steigenberger

Tel.    +49 (8153) 28-3765
e-mail  peter.steigenberger at dlr.de
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