number keys to change the numbers. Use the ▲ or ▼ button to toggle between “Y” and “N” for Daylight Saving Time. Press ENTER to go back the previous screen.

4.3.2. Set Up Observation Site

Scroll down and select “Set up Observ. site”

Set up Local Time

Set up Observ. site

Set N/S hemisphere

Set display contrast

Set Eyepiece light

Set Backlight

Set anti-backlash

Set Key Beep

Press ENTER. The longitude and latitude coordinates will be updated when the GPS picks up satellite signals. “W/E” means west/east hemisphere; “N/S” means north/south hemisphere; “d” means degree; “m” means minute; and “s” means second.

Set up site info:

 

Longitude:

 

 

W071d27m47s

 

Latitude:

 

 

N42d15m40s

 

300

Min.

behind

UT

If for any reason your GPS can’t pick up a signal you can manually enter the GPS coordinates. Press ◄ or ► key to move the cursor and using ▲ or ▼ key to toggle between “W” and “E”, “N” and “S”, using number key to change the numbers. It is always a good idea to do your home work to get the GPS coordinates before traveling to a new observation site.

The site coordinates information can be found from Support section in iOptron website, under Controller Set-up(http://www.ioptron.com/support.cfm?module=faq# ).By entering the city name or address, you can find its latitude and longitude. In case you only find the site information in decimal format you can convert them into d:m:s format by multiplying the decimal numbers by 60. For example, N47.53 can be changed to N47º31'48”: 47.53º = 47º +0.53º, 0.53º=0.53x60'=31.8', 0.8'=0.8x60"=48". Therefore, 47.53º=47º31'48" or 47d31m48s.

Press ◄ or ► key, move the cursor to the bottom of the screen to set the time zone information (add or subtract 60 minutes per time zone). Enter minutes “ahead of” or “behind” UT (universal time).

•Boston is 300 minutes “behind” UT

•Los Angeles is 480 minutes “behind” UT

•Rome is 60 minutes “ahead of” UT

•Beijing is 480 minutes “ahead of” UT

•Sydney is 600 minutes “ahead of” UT

All the time zones in North America are behind UT, as shown in the following table. So make sure it shows “behind” instead of “ahead of” UT.

Time Zone

Hawaii

Alaska

Pacific

Mountain

Central

Eastern

 

 

 

 

 

 

 

Hour behind UT

-10

-9

-8

-7

-6

-5

 

 

 

 

 

 

 

Enter Minutes

600

540

480

420

360

300

 

 

 

 

 

 

 

To adjust minutes, move the cursor to each digit and use the number keys to input number directly. To change the “behind” or “ahead of” UT, move the cursor to “ahead” and using ▲ or ▼ key to toggle

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iOptron IEQ75-GTTM instruction manual Set Up Observation Site, Scroll down and select Set up Observ. site
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IEQ75-GTTM specifications

The iOptron IEQ75-GT is an advanced equatorial mount designed for amateur astronomers and astrophotographers seeking precision and reliability in their observations. This mount stands out due to its robust construction and innovative technology, making it ideal for a wide range of astronomical applications.

One of the main features of the IEQ75-GT is its impressive payload capacity. With the ability to support up to 75 pounds, it can easily accommodate a variety of telescopes and imaging setups, enabling users to explore both deep-sky objects and planetary details. The mount’s solid aluminum construction ensures stability, which is critical for long exposure astrophotography.

The IEQ75-GT is equipped with iOptron's signature GoTo system, allowing for easy navigation across the night sky. With its celestial database that includes over 200,000 objects, users can effortlessly locate and track their desired targets. The advanced GoTo technology also includes a built-in GPS, simplifying the alignment process and providing precise location data for better tracking.

Another notable feature is the mount's dual-axis tracking, which ensures that celestial objects remain in view, even during long exposure imaging sessions. The high-resolution encoders and closed-loop servo motors provide smooth movement and accurate tracking, reducing the risk of star trailing during exposures.

The mount is designed with portability in mind. Its compact size and lightweight construction make it easy to transport, making it a great choice for both backyard observations and remote dark-sky outings. The quick-release system allows for fast setup and teardown, enhancing convenience during stargazing sessions.

iOptron also incorporates unique smart technology in the IEQ75-GT. The mount is compatible with a range of mobile applications, allowing users to control the mount and access additional features directly from their phones or tablets. This level of integration enhances the observing experience and makes it easier to explore the night sky.

Additionally, the IEQ75-GT features a built-in autoguider interface, facilitating long-exposure astrophotography without the need for additional guiding equipment. The mount’s versatility and user-friendly design make it an excellent choice for both novice and experienced astronomers.

In summary, the iOptron IEQ75-GT combines high payload capacity, advanced GoTo technology, sturdy construction, and smart features to deliver a powerful astronomical platform. Whether you're passionate about stargazing or astrophotography, the IEQ75-GT is a worthy investment for any astronomy enthusiast, providing the reliability and precision needed for a successful observing experience.
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