### Detailed Description

The name of the configuration provides an almost complete summary of
the properties of the corresponding data.
For FFT mode data, the format

F_ttt_ll_mm_hhh_rr

gives

- F
- - mnemonic denoting an FFT mode
- ttt
- - the time bin size ("us" denotes microseconds)
- ll
- - the lower bound of the lower channel
- mm
- - the lower bound of the upper channel
- hhh
- - the upper bound of the upper channel
- rr
- - the readout time (either 16 s or 64 s)

For example, in the `F_500us_0_12_249_64s` configuration, PDS and CS are calculated over 64-second chunks from data with 500-microsecond resolution, in two bands from channels 0-11 and 12-249.

Missing from the configuration name is the fact that the PDS and CS histograms have 129 bins, regardless of the time resolution and accumulation time. In addition, the true time resolution is not necessarily the same as the number in the configuration name, which is an approximation. For example, in the `F_500us_0_12_249_64s` configuration, the PDS and CS are calculated from bins 1/2**11 seconds wide, i.e. 488.28125 microseconds. To derive this number, work out the nearest inverse power of two from the configuration name.