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--- operations:r4455_notes [2010/11/04 23:11]
Jim Lovell
+++ operations:r4455_notes [2011/10/26 06:37] (current)
@@ Line 1: / Line 1: @@
 The DBBC sometimes loses a channel. First spot-check done at 308/22:50 and found three channels to be suspect: 1 (X-band 1u), 9 (X-band 1l) and 11 (S-band 9u):
-{{:operations:r4455hb_308_2250_314935091200.png?500|}}
+{{:operations:r4455hb_308_2250_314935091200.png?400|}}
 After reconfiguring DBBC, before scan 308-2256, all autocorrelations were fine:
-{{:operations:r4455hb_308_2259_334582476800.png?500|}}
+{{:operations:r4455hb_308_2259_334582476800.png?400|}}
+Another spot-check at 309/03:12 showed bad looking autocorrelations in channels 1, 4, 9, 11 and 14:
+{{:operations:r4455hb_309_0312_585992089600.png?400|}}
+Autocorrelations look good again in scan 309-0328a.
+Checked again at 309/03:35. Bad spectra in channels 1, 9 and 11:
+{{:operations:r4455hb_309_0535_724613580800.png?400|}}
+Data should be good from scan 309-0544a
+[[How to check autocorrelation spectra]]