I don't understand Your DATA i file *work_unit.sah*

from work_unit.sah header

subband_sample_rate=9765.62
nsamples=1048576

The data is BASE64 encoded, undo that and you have 256K of raw data or so,
which means 2 bits per sample. 1 bit re, 1 bit img, judging by the
samplerate. Much fun can be had guessing the bit order and such, even more
fun finding out what S@H client thinks about Britney Spears. Do not try
this without disabling the client from communicating with S@H.