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http://www.naic.edu/~phil/hardware/cor/cor.html
Дата изменения: Tue Aug 28 21:58:40 2012
Дата индексирования: Sun Feb 3 19:56:53 2013
Кодировка:
Interim correlator
02jun,2001
28aug12: polA sbc4 had larger Tsys than other sbc.
15aug11: sbc1 polB spike in center of band for bw <=12.5Mhz
07jul11: luis reburns chip
22jun11: sbc3,4 Tsys increase. halfband filter 3,4 +5 volts supply failed.
07dec10: spectra with low power levels (.1 to .5) do not show increased Tsys.
07oct09: differential receiver chips for hardware blanking
29sep02: Spectral noise versus integration time using noise source in downstairs if/lo.
28sep02: Spike in central channel of correlator bandpasses (100 min integration).
25sep02: The correlator bandpasses using a noise source.
24sep02: Comparing the computed and measured bandpass shapes of the digitial filters/correlator.
02jun01 Problems adjusting the power levels with a large out of band signal present.
Software:
interim correlator idl routines
interim correlator programs
SCHEMATICS
:
Halfband_chassis:
half_band_block_diag (.pdf)
half_band_chasis_layout (.pdf)
half_band_8bit_digitizer (.pdf)
half_band_filter_board (.pdf)
harris 4326 halfband filter chip datachip (.pdf)
half_band_power_supply (.pdf)
half_band_synchronizer (.pdf)
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