[evlatests] Tcals at S-band

Barry Clark bclark at nrao.edu
Fri Aug 3 12:23:21 EDT 2012


See below

Rick Perley wrote:
>     A test (for PDif compression) reveals some clearly incorrect Tcal 
> values at Sband:
> 
>     ea01:  Tcal appears to be 10X too high. 

Yes indeed; the soida file has an extra column containing Tcal*10
which was loaded instead of the proper column.  Corrected.

>     ea02 and ea12:  2X too low

The S band receiver in ea02 does not identify itself in monitor
data.  MIB is pingable but appears unresponsive.  Will fix Tcals
when receiver identifies itself.

ea12 - those are the numbers in the soida files in the 'Current' area,
and are about what they should be.

>     ea07:  4X too high

These are the numbers in the soida files in the 'Current' area.
There are other soida files with numbers a factor of two (not four)
lower.

>     ea08:  2X too high

These are the numbers in the soida files in the 'Current' area,
and are about what they should be.

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