Differences between revisions 13 and 14
Revision 13 as of 2016-07-19 11:20:30
Size: 1351
Comment:
Revision 14 as of 2016-07-19 11:21:03
Size: 1395
Comment:
Deletions are marked like this. Additions are marked like this.
Line 6: Line 6:
== Meeting note with Zsuzsa == == Note of the Meeting with Zsuzsa (Jul 15, 2016 at Columbia University)==

KAGRA Timing System


== Note of the Meeting with Zsuzsa (Jul 15, 2016 at Columbia University)==

Suggestions (random order)

  • You may not want more IRIG-B boards because there is Dsub output on the back of IRIG-B board with which we can convert to BNC to use more outputs.
  • It's better to connect two GPS antennas to Master board so that one can be used when the other signal is lost.
  • In the master board, VCXO is not available in the market anymore. However Szusza has spares.
  • In the comparator board, there is one chip which gets very hot. Make sure to cool it down.
  • Check if the leap second is correctly compensated in the oldest IRIG-B (one arrived on 5/7/2012, installed in the front room). iKAGRA timing might have been off 1 sec!

Reference

LIGO Documents

KAGRA/Subgroups/DGS/Projects/Timing (last edited 2021-08-11 18:12:00 by shoichi.oshino)