This Losmandy/Garmin GPS receiver adds the accuracy of GPS (Global Positioning System) latitude/longitude/time entry to your pre-2011 Losmandy Gemini go-to computer. This GPS unit is not designed for Losmandy Gemini 2 computers and Losmandy mounts made in 2011 and later that are factory-equipped with the Gemini 2 computer.
Your location and time must be entered into your Gemini computer in order for the Gemini to move your Losmandy GM8, G11, or HGM Titan mount to celestial objects. The more accurately your location and time are entered, the more accurate your Gemini’s aim.
With this Losmandy/Garmin GPS receiver, there’s no guessing about your exact location on earth and the exact time. The receiver uses the signals from a network of orbiting government satellites to determine your location on earth with an accuracy of a few meters, and the time with an accuracy measured in tiny fractions of a second.
Operation of the Losmandy/Garmin GPS receiver is simplicity itself.
There are two connectors on the end of the 10' cable of the Garmin GPS receiver. Once your mount is set up and polar aligned, plug the large connector at the end of the cable into the Gemini port labeled "Feature" and the small connector into the Gemini port labeled "RS-232". See the feature image above for the location of the ports. No external power is needed, as the GPS receiver is powered by your Gemini computer.
Make sure that the GPS unit is positioned away from the mount, using its 10’ cable, so that the metal in your mount and optical tube can’t affect the GPS receiver.
Turn on the Gemini and wait 3 to 5 minutes while the GPS receiver acquires three satellites so it can triangulate your location on earth.
Turn off the Gemini, wait 15 seconds, then turn the Gemini back on. All location and time information will be downloaded from the GPS receiver into your Gemini go-to computer.
Unplug the Losmandy/Garmin GPS receiver. You can do this without turning off the Gemini.
That’s all there is to it.
Locate your guidestar or star(s) and you can immediately start locating celestial objects with GPS accuracy using your Gemini go-to computer and Losmandy mount.
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