5.4.3. Set Anti-backlash
All mechanical gears have a certain amount of backlash or play between the gears. This play is evident by how long it takes for a star to move in the eyepiece when the hand control arrow buttons are pressed (especially when changing directions). The Go2Nova
To set the
Set Up Time and Site
Set Display and Beep
Set
Meridian Treatment
Set Eyepiece Light
Heating Controller
Upgrade R.A. and DEC
Firmware Information
Press ENTER. A R.A.
R.A.
0000 steps
One step equals to 0.09 arc second.
To adjust steps move the cursor to each digit and use the number keys to input number directly. Press ENTER – “DEC
DEC
0000 steps
One step equals to 0.10 arc second.
Move the cursor to each digit and use the number keys to set the
While viewing an object in the eyepiece, observe the responsiveness of each of the four arrow buttons. Note which directions you see a pause in the star movement after the button has been pressed. Working one axis at a time, adjust the backlash settings high enough to cause immediate movement without resulting in a pronounced jump when pressing or releasing the button. The hand controller will remember these values and use them each time it is turned on until they are changed.
The 8407 hand controller has a function to test the mount backlash number and can store the anti- backlash steps here. The maximum steps are 9999.
5.4.4. Meridian Treatment
This function tells mount what to do when it tracks across the meridian. There are three options. Stop Tracking will stop the mount when it passes the meridian. Telescope Flip will flip the telescope and continuous to track the object. The third option is Continue to Track. In this case, the mount will keep tracking and the OTA could hit the tripod leg if the mount is not monitored.
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