BASIC OPERATIONS
7
GUIDE Menu
: This menu is used to activate or de-activate autoguiding. Use the
UP
/
DOWN
button
to choose from the following three options:
AUTO CAL: The SynGuider will start an auto-calibration routine prior to the start of autoguiding.
RESUME: The SynGuider will immediately start autoguiding with the previous guiding parameters.
STOP: The SynGuider will stop autoguiding and return to the locked mode.
CROSS Menu:
This menu is used to turn on the crosshair on the LCD screen.
DEC BACKLASH Menu:
To reduce the influence of Dec axis’ backlash during autoguiding, the
SynGuider can send a Dec+ or Dec- control for a pre-determined time when the SynGuider
changes the polarity of the Dec control signal. Once this menu is selected, you will see the current
setting displayed in the text zone of the LCD screen. Use
UP/DOWN
buttons to change the value.
Press
ENTER
or
LEFT
button to confirm. If your equatorial mount has no or minimal backlash, or if
you have done very accurate polar alignment, the Dec backlash should be set to 0.
NOISE Menu:
This menu is used to set the cut-off value for the noise filter of the image sensor.
The proper noise level differs from exposure time, thus the SynGuider provide independent noise
level setting for each exposure time and will automatically use the corresponding nosie level when
the user change the exposure time.
Once this submenu is selected, you will see the current cut-off value displayed in the text zone of
the LCD, while the image zone of the LCD keeps refreshing.
If there is a short solid horizontal line shown in the upper or middle portion of the LCD's image
area, it means that the cut-off value is too low and you should increase it until you can see
reasonable amount of noise dots diversify evenly in the LCD's image area.
