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?400|}}

After reconfiguring DBBC, before scan 308-2256, all autocorrelations were fine:

{{: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]]