Mark5B mode broken in release 2.0.7

The Mark5B mode using mark5 libraries in the latest versions of sdtracker (2.0.7 and 2.0.8) is broken. Tested with Mopra data with data format Mark5B-32-2-2. The spectra output after swspec looks fine at a first glance, but you can already see some drift after sctracker on the tone.

version 2.0.6 - coherent

# In flexbuflyg
/home/observer/code/sctracker/swspec/swspectrometer inifile.Mp /mnt/zdisk3/bc0411mp/bc0411_mp_no0003.m5b

version 2.0.8 - non-coherent

swspectrometer inifile.Mp /mnt/zdisk3/bc0411mp/bc0411_mp_no0003.m5b

Stats after sctracker with 2.0.6

Measurements

Std dev : 5126.99 mHz SNR mean : 6.63

Stats after sctracker with 2.0.8

Measurements

Std dev : 8.97 mHz SNR mean : 4015.25

• It can look as a headers/randomness problem.