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<div>Dear operators of Javad receivers, <br>
<br>
as announced in the two IGSMAILs<br>
<br>
<a href="https://lists.igs.org/pipermail/igsmail/2026/008677.html" class="OWAAutoLink">https://lists.igs.org/pipermail/igsmail/2026/008677.html</a><br>
<a href="https://lists.igs.org/pipermail/igsmail/2026/008682.html" class="OWAAutoLink">https://lists.igs.org/pipermail/igsmail/2026/008682.html</a><br>
<br>
BeiDou is currently decommissioning several BDS-2 satellites and shifting PRNs of BDS-3 satellites to the former PRNs of these decommissioned satellites. <br>
<br>
The first reallocation took place last Friday: BDS-3 satellite SVN C220 was switched from C38 to C06, see
<a href="https://www.bdsupport.cn/notice/noticeDetail?id=1002&lang=en" class="OWAAutoLink">
https://www.bdsupport.cn/notice/noticeDetail?id=1002&lang=en</a><br>
Another three reallocations are scheduled for tomorrow, 17-Apr-2026: <a href="https://lists.igs.org/pipermail/igsmail/2026/008685.html" class="OWAAutoLink">
https://lists.igs.org/pipermail/igsmail/2026/008685.html</a><br>
<br>
Javad receivers have by default allocated PRNs C01,...,C18 to BDS-2. Thus, only BDS-2 signals are tracked for C06 at the moment. <br>
<br>
This default configuration can be changed to BDS-3 by the following GREIS command:<br>
<br>
set,lock/bei/phase3/6,y<br>
<br>
Please execute this command at your earliest convenience in order to track all BDS-3 signals of PRN C06.</div>
<div><br>
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<div>Please execute the following three commands earliest at Friday evening to account for the PRN reallocations happening on 17-Apr-2026: </div>
<div>
<div><br>
set,lock/bei/phase3/2,y<br>
set,lock/bei/phase3/7,y<br>
set,lock/bei/phase3/8,y</div>
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</div>
<div>I will inform you about future PRN reallocations, as soon as their date is announced.</div>
<div><br>
</div>
<div>Best regards,</div>
<div><br>
</div>
<div>Peter</div>
<div><br>
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<div style="font-family:Tahoma; font-size:13px"><font face="Courier New" size="2"><span style="font-size:10pt">----------------------------------------------------<br>
</span></font><font face="Courier New" size="2"><span style="font-size:10pt">Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
<br>
German Space Operations Center<br>
Münchener Strasse 20, D-82234 Wessling, Germany</span></font></div>
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</span></font></div>
<div style="font-family:Tahoma; font-size:13px"><font face="Courier New" size="2"><span style="font-size:10pt"><font face="Courier New" size="2"><span style="font-size:10pt">Peter Steigenberger</span></font><br>
<br>
Tel. +49 (8153) 28-3765<br>
e-mail peter.steigenberger@dlr.de<br>
</span></font><font face="Courier New" size="2"><span style="font-size:10pt">----------------------------------------------------</span></font><br>
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