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operations:r4455_notes [2010/11/04 23:11] Jim Lovell |
operations:r4455_notes [2010/11/05 03:25] Jim Lovell |
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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): | 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?50|}} | + | {{:operations:r4455hb_308_2250_314935091200.png?400|}} |
After reconfiguring DBBC, before scan 308-2256, all autocorrelations were fine: | After reconfiguring DBBC, before scan 308-2256, all autocorrelations were fine: | ||
- | {{:operations:r4455hb_308_2259_334582476800.png?50|}} | + | {{: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: | ||
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+ | {{:operations:r4455hb_309_0312_585992089600.png?400|}} | ||