LED Calibration Software

LONGLEY@AXPGS0.LNGS.INFN.IT
Wed, 7 Jun 1995 8:30:02 +0200 (WET-DST)

Calibration people:

The uVAX 2 and 3 LED calibrations seem to use LEDTDC940329.DAT, while
the uVAX 1 calibrations use LEDTDC940319.DAT (different in the last two digits,
which look like a date). The latter has lines like:
H -7.5 7.5 250. 20. xxx
while the former has lines like:
H -7.5 7.95 250. 20. xxx

I assume that the second number is a voltage, but can't figure out why
we'd run different levels in the different uVAXes... is this a bug? SHould all
the files use LEDTDC940329.DAT (the one with 7.95 rather than 7.5 in the second
column)? If so, does anyone know why we use -7.5 and +7.95 (that is, why are
the positive and negative voltages different)?

- Nat