Lacerta M-Gen User Manual page 44


AG start
or
To start or stop the autoguiding.
When starting, the latest star position will be the guiding center, where the star is to be
held. Later the guiding center can be overwritten with a new value (for example by the
RD function). The position is always a fractional (any "subpixel" position is allowed).
The autoguiding can't be started if the Camera sees no star.

<<
: (button)
The display mode of the window at left is changed by this item (pressing SET on it),
see display modes at 5.1.10.

pg ?/5
: (button)
By selecting this item and pressing LEFT, RIGHT or SET the active page of the
Guiding screen can be changed. This item can be found on each page at the same
position.
Calibration and alignment page (2/5)
5.1.10.2
The Calibration's function is to determine the relationship between
the sky axes and the Camera coordinates and the actual correction
speeds for both sky axes. It is required to make the device know how the mount will react on
the autoguider signals and know how the guiding star will move on the CCD. This screen
contains the main elements of setting this 'camera orientation' data.
The screen items are the following:

Invert RA, invert DEC
When enabled they invert the apropriate axis' autoguider signal direction. It is
important to know that these inversions are made just before putting them physically
to the output and so they will invert all the signals generated by any part of the
software. If a calibration data is used, these need to be disabled. Inverting one of them
may be necessary only after a meridian-flip of the mount (pointing to the same point
of the sky but physically differently).

Manual
: (button)
By pressing it the autoguider signals stop and the direction buttons can be used to
control them manually. On the screen a "MANUAL, ESC to quit" inverted text
indicates this manual control mode. You can exit this mode with pressing ESC.

Calibration
Enters the Calibration screen to show and start or delete the current calibration data.

Polar align
Enters the Polar Alignment screen, where the polar misalignment can be measured.
AG stop
: (button)
: (switches)
: (submenu)
: (submenu)
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