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operations:documentation.ivs.mark5mode
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operations:documentation.ivs.mark5mode [2018/02/27 05:19] Warren Hankey |
operations:documentation.ivs.mark5mode [2018/02/27 05:19] (current) Warren Hankey |
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| - | ===Mode Modern=== | ||
| - | for Mark5B machines, | ||
| - | mode? now returns mk5b_mode=ext,<bitmask>,,<sampling> | ||
| - | sampling is rate (1 or 2 GB/s) times twice (Nyquist) bandwidth of 2,4,8,16 MHz gives 4,8,16,32 or 64 | ||
| - | |||
| - | bitstream mask 0xffffffff is 11111111 11111111 11111111 11111111 so all 32 bitstreams are taken. There are sixteen channels so two values per channel sign (positive/negative 1/0), and amplitude (high/low 1/0) give 32 bitstreams (2-bit samples). Bitstream mask 0x55555555 is 01010101 01010101 01010101 01010101 means unsigned, just amplitude for 16 channels (1-bit samples). | ||
| - | |||
| - | data rate is (2 x bandwidth) x (16 channels) | ||
| - | e.g. ks experiment 64 x 16 | ||
| For VSI recording, 1-bit sampling and 8 MHz bandwidths (e.g. R1 and R4 experiments): | For VSI recording, 1-bit sampling and 8 MHz bandwidths (e.g. R1 and R4 experiments): | ||
/home/www/auscope/opswiki/data/attic/operations/documentation.ivs.mark5mode.1519708747.txt.gz · Last modified: 2018/02/27 05:19 by Warren Hankey
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