01 January

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    2011 Jan 10

    James M Anderson, Masaya Kuniyoshi, and Andreas Horneffer went to Effelsberg to check on a broken rubidium clock and swap out broken RCU boards.

     

    The rubidium clock produces a 5 MHz sine wave output, but no 10 MHz output nor the 1 PPS output.  The LOFAR station is totally useless without these signals for operation.  Menno Norden at ASTRON contacted to find out whether or not they have a spare.

     

    RCU board changes: