I found these references to that precise frequency:
Quote:
XFree86 on Beige Macintosh G3
Keywords:
Date Created: 2002-09-17
Author: Luke Scharf luke@vt.edu
The following is a sample /etc/X11/XF86Config-4 file that is compatible
with the Beige All-in-One Macintosh G3:
[...]
Mode "800x600"
# D: 49.885 MHz, H: 47.967 kHz, V: 72.022 Hz
DotClock 49.886
HTimings 800 856 976 1040
VTimings 600 637 643 666
Flags "+HSync" "+VSync" # Warning: XFree86 doesn't support accel
EndMode
|
xfree86-beige-macintosh-g3
So, it
appears it may be something related to the horizontal reresh rate of an old Macintosh Beige monitor spec.
But 47.967 is also apparently the amount (in millions -- or maybe
billions? -- of dollars) of some weapon system funding on a unclassified Air Force budget sheet in PDF form:
www.saffm.hq.af.mil/shared/media/document/AFD-070212-005.pdf
I'm thinking it might relate to the former but the latter seems a stretch.
