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information_for_astronomers:information_of_the_receiver_division:index [2016/10/19 16:00] akraus |
information_for_astronomers:information_of_the_receiver_division:index [2018/07/05 19:49] rkeller |
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For more information visit our wiki pages [[ https://eff100mwiki.mpifr-bonn.mpg.de/doku.php?id=electronics:index|'Electronic department']]. | For more information visit our wiki pages [[ https://eff100mwiki.mpifr-bonn.mpg.de/doku.php?id=electronics:index|'Electronic department']]. | ||
- | * January 2016 (R. Keller): TimeTech GPS Receivers out of service! | + | * July 5 2018: Protocol of the Workshop "Refurbishing the Effelsberg Timing System" in Effelsberg (R. Keller): |
- | + | {{:information_for_astronomers:information_of_the_receiver_division:refurbishing_eff_timing_protokoll.pdf|Protocol}}, Reinhard Kellers {{:information_for_astronomers:information_of_the_receiver_division:refurbishing_the_effelsberg_timing_system.pdf|Presentation}}, Wolfgang Schäfers {{:information_for_astronomers:information_of_the_receiver_division:effelsberg_f_t_refurbishment_20180705_ws.pdf|Presentation}}. | |
- | Auf Grund eines Fehlers im GPS Systems fiel am 25.1.2016 das Teleskopsystem aus. Diverse Satelliten zeigten einen Zeitversatz von 13,7usec, was durch mehrere Obserevatorien weltweit bestätigt wurde (siehe {{:electronics:elsystemgruppenwiki:gps_zeitsprung_vom_25.1.2016.pdf|e-mails}}). Daraufhin wurde ein Satellit dekommissioniert. | + | |
- | Offensichtlicht haben die TimeTech Receiver ein inkonsistentes Signal geliefert, sodass der VME Rechner die Fehlermeldung 'Starting new day' mit der Zeit 00:00:00 und demselben Tag brachte. Daraufhin blieb der 6msec Interrupt aus und das System blieb stehen. | + | |
- | Wir haben dann IRIG auf die alte TruTime Uhr gelegt, welche bei den Zeitsprüngen zwar neu synchronisiert hat, aber ein schlüssiges IRIG liefertte. Die TimeTech Uhren laufen seit 26.1.2016 ohne Einfluss mit, protokollieren aber weiterhin die Zeitabweichung Maser vs. GPS. | + | |
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- | Siehe auch [[electronics:elsystemgruppenwiki:gps_receiver]]. | + | |
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- | Relevant for astronomical measurements for the time beeing is the TruTime GPS receiver in the control room! | + | |
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- | * May 2015 (R. Keller): | + | |
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- | The 7mm Receiver is available with only 1 Channel RHC! This will be kept until the new Q-Band receiver is ready. Sorry for that. | + | |
* March 2014: there was a workshop on general polarization measurement issues in Bonn. Here are the files provided from C. Henkel of the contributions:{{:electronics:elsystemgruppenwiki:pol-akraus-210314.pdf|A. Kraus}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-aroy-210314.pdf|A. Roy}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-beck-210314.pdf|R. Beck}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-bklein-210314.pdf|B. Klein}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-friedrich-210314.pdf|F. Wyrowski}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-ramesh-210314.pdf|R. Karapusami}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-wiese-210314.pdf|H. Wiesemeyer}} | * March 2014: there was a workshop on general polarization measurement issues in Bonn. Here are the files provided from C. Henkel of the contributions:{{:electronics:elsystemgruppenwiki:pol-akraus-210314.pdf|A. Kraus}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-aroy-210314.pdf|A. Roy}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-beck-210314.pdf|R. Beck}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-bklein-210314.pdf|B. Klein}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-friedrich-210314.pdf|F. Wyrowski}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-ramesh-210314.pdf|R. Karapusami}}, {{:information_for_astronomers:information_of_the_receiver_division:pol-wiese-210314.pdf|H. Wiesemeyer}} |