Software Bisque Paramount 6 Series - Page 118

Paramount GEM User Guide
118 | P a g e
Initialization-Related
Parameter
Description
PEC Motor to Worm Gear
Ratio
Specifies the gear ratio between the motor and the worm gear.
PEC Cutoff Speed
Set to two times the sidereal rate, this insures periodic error correction is
not applied to higher slew rates. Attempting to apply periodic
corrections at high slew speed results in very labored sounding slews.
PEC Harmonics
The number of harmonics to use when TheSky computes optimal PEC
curve.
PEC Ratio 1
The first gear ratio between the motor and worm.
PEC Ratio 2
The second gear ratio between the motor and worm.
PEC Ratio 3
The third gear ratio between the motor and worm.
PEC Scale
The scale in arcseconds per pixel of the imaging system used to generate
the PEC tracking log file.
PEC Teeth on Gear
The number of teeth on the mount’s main gear. This value defines the
length of time for one revolution of the worm when the mount is tracking
at the sidereal rate.
ME
• Tracking at the sidereal rate, one revolution of the worm
takes 149.6 seconds (2 minutes 29 seconds).
• The hour angle gear has 576 teeth.
• The declination gear has 375 teeth.
MEII
• Tracking at the sidereal rate, one revolution of the worm
takes 149.6 seconds (2 minutes 29 seconds).
• The hour angle gear has 576 teeth.
• The declination gear has 475 teeth.
MX
MX+
• Tracking at the sidereal rate, one revolution of the worm
takes about 230 seconds (3 minutes 50 seconds).
• Both the hour angle and declination gears have 375 teeth.
MYT
• Tracking at the sidereal rate, one revolution of the worm
takes 269 seconds (4 minutes 29 seconds).
• Both the hour angle and declination gears have 320 teeth.
PEC Worm Periods
Number of worm revolutions to use in PEC curve determination.
System Parameters