Subject: [IGSSTATION-3643]: SOFI Firmware Downgrade
From: Rudi Stöger <[email-masked]>
To: [email-masked], Rudolf Stoeger <[email-masked]>
Date: Wed, 31 Mar 2010 13:19:39 +0200

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IGS Station Mail          31 Mar 04:20:37 PDT 2010      Message Number 3643
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Author: Rudi Stoeger

Ladies and Gentlemen

After the upgrade of the firmware for the
TPS_GGD in our GPS+GLONASS Permanent
Tracking Station SOFI, Sofia, Bulgaria
from 2.6.1 JAN,10,2008 to 3.4 DEC,12,2009 P2,
2010-03-26T09:40Z, the receiver did not track
GPS Satellites.

My colleague Uwe Hessels downgraded the
firmware to 2.6.1 JAN,10,2008, 2010-03-30T14:30Z.

With best regards
Rudi