iOptron CEM40 Instruction Manual page 20

STEP 9. Setting up the Hand Controller
The CEM40 mount is equipped with a GPS receiver which will receive the time, longitude and
latitude information for your current location from satellites after a link is established. However, there are still
some parameters which need to be entered to reflect your location, such as time zone information and
whether daylight saving time is currently in effect. This information will be stored in the hand controller
memory along with longitude and latitude coordinates until they need to be updated.
A clear sky and open space outside is needed for the GPS to establish a link with the satellites.
To set up the controller, press MENU =>"Settings":
Select and Slew
Sync. to Target
Alignment
Settings
Electric Focuser
PEC Options
Park Telescope
Edit User Objects
Firmware Information
Press ENTER and select "Set Time and Site"
Set Time and Site
Beep Settings
Display Settings
Set Guiding Rate
Set Tracking Rate
Set Parking Position
Meridian Treatment
Set Altitude Limit
Set Eyepiece Light
Press ENTER. A time and site information screen will be displayed:
Daylight Saving Time
UTC -300 Minute(s)
2019-03-09 10:19:18
Longitude:W071d08m50s
Latitude:
Northern Hemisphere
Set Local Time
The time will be updated automatically when the GPS receiver has established its link to the
satellites. In the event that the GPS module is unable to establish a link, local time can be entered manually.
Use the ◄ or ► key to move the cursor _ and use the number keys to change the numbers. Use the ▲ or
▼ button to toggle between "Y" and "N" for Daylight Saving Time, or "+" and "-" for UTC (Coordinated
Universal Time) setting. Hold the arrow key to fast forward or rewind the cursor.
In order to make the Hand Controller reflect your correct local time, time zone information has to
be entered. Press the ◄ or ► key, move the cursor to the third line "UTC -300 Minute(s)" to set the time
zone information (add or subtract 60 minutes per time zone). For example:

Boston is "UTC -300 minutes"

Los Angeles is "UTC -480 minutes"

Rome is "UTC +60 minutes"

Beijing is "UTC +480 minutes"

Sydney is "UTC +600 minutes"
Y
N42d30m32s
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