User's Manual
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guiding speed can be set between ±0.10X to ±0.99X sidereal rate. Follow the instructions of your
autoguiding software for detailed guiding operation.
CEM70G has an integrated guiding camera iGuider for ASCOM pulse guiding. Both CEM70G
and CEM70 have an ST-4 guiding port on mount base panel.
The ST-4 guide port wiring is shown in Error! Reference source not found., which has the
ame pin-out as that from a Celestron / Starlight Xpress / Orion Mount / Orion Autoguider/ QHY5
autoguider.
If you have an autoguider which has the same pin-out as the ST-I from SBIG, such as Meade/
Losmandy/ Takahashi/ Vixen, make sure a proper guiding cable is used. Refer to your guiding camera
and guiding software for detailed operation.
WARNING: DO NOT plug your ST-4 guiding camera cable into the iPORT or HBX port. It
may damage the mount or guiding camera electronics.
5.4.5. Set Tracking Rate
You can set up the mount tracking rate by selecting “Set Tracking Rate”.
Then the user can select “Sidereal Rate”, “Lunar Rate”, “Solar Rate”, “King Rate”, and “User
Defined Speed”. The “User defined speed” can be adjusted from 0.1000X to 1.9000X of sidereal.
The “King Rate”, developed by Edward S. King, corrects the tracking rate of a telescope to
account for atmospheric refraction. This is more useful for unguided tracking.
5.4.6. Set Parking Position
You may park the telescope before powering off the mount. This is very useful if the mount is on
a permanent pier or the mount will not be moved in between observation sessions. The mount will keep
all the alignment info and reference points.
There are six parking positions. Two positions that park the scope horizontally (Horizon
Position). Two positions that park the scope vertically (Zenith Position). “Current Position” will park
the scope at its current position. Alternatively, you can enter any altitude and azimuth combination for
“Custom Parking Pos.”. When the mount is turned on, it will use the last parking position setting as the
default setting.
5.4.7. Meridian Treatment
This function tells the mount what to do when it tracks past the meridian. You can tell the mount if it
needs a meridian flip and when to do it.
“Set Position Limit” will tell the mount when to stop tracking or to do a meridian flip. The limit
can be set at from 0° to 10° pass meridian.
“Set Behavior” will tell the mount if a meridian flip will be performed.
5.4.8. Set Altitude Limit
This function allows the mount to keep tracking an object even if it is below the horizon but can
still be seen, for example from an elevated observation site, such as a hill. The range can be set from -
Set Up Time and Site
Beep Settings
Display Settings
Set Guiding Rates
Set Tracking Rate
Set Parking Position
Meridian Treatment
Set Altitude Limit