[daip] BPASS

[Luca Moscadelli]

Hello,

I am currently analizing data of the global exp. GM043A, EVN+VLBA
observations of 22 GHz H2O masers. The cross-power spectra have
1024 channels.

I would like to ask you about a feature of the AIPS task BPASS.
Looking at the data, after applying the BP table obtained with BPASS
(using only the AC data: bpassprm(1) = 1), the amplitude of the
cross-power spectra are apparently reduced by a factor of 1000.0.
Both the spectra produced with POSSM and the amplitude listed with LISTR
are at the mJy level, instead of the correct Jy level.
Applying the BP table produced with CPASS, the apparent level of the
cross-power spectra is correct, at the JY level.