Orion ATLAS EQ-G User Manual download pdf (Page 19)

9. Technical Specifications

Mount: German equatorial

Tripod: Steel

Weight: 54lbs.

Counterweights: Quantity 2, 11 lbs. each

Polar axis latitude adjustment: 10° to 65°

Polar axis finder scope: Included, illuminator built

into mount

Motor drives: Dual-axis, GoTo comput-

erized, internally housed

Operation: Northern or Southern

hemisphere

Power requirement: 12V DC, 2A (tip positive)

Motor type and resolution: Microstep driven 1.8°

stepper motors

Resolution: 0.144 arc sec (or

9,024,000 steps/rev)

Gear ratio: 705

#7795 Dual-Axis hand controller

Slew speeds: Guiding speed

32x

64x

800x

Guiding speeds: 2x / 1.75x / 1.5x / 1.25x

sidereal rate

Tracking rates: sidereal, lunar, solar

Tracking mode: R.A. tracking

#7796 GoTo hand controller

Slew speeds: Rate 0 = 1.5x

Rate 1 = 2x

Rate 2 = 8x

Rate 3 = 16x

Rate 4 = 32x

Rate 5 = 64x

Rate 6 = 400x

Rate 7 = 500x

Rate 8 = 600x

Rate 9 = 800x (3.4°/sec)

Autoguiding rates: 2x / 1.75x / 1.5x / 1.25x

sidereal rate

Tracking rates: Sidereal (default), lunar,

solar, PEC + sidereal

Tracking modes: R.A. tracking

Alignment method: One-star alignment, two-

star alignment, three-star

alignment

Database: 25 user-defined objects,

complete M, NGC, and IC

catalogs.

Total 13,436 objects

Pointing accuracy: Up to 1 arcminute with

cone error calibration, up

to 15 arcminutes without

cone error calibration.

This device complies with Part 15 of the FCC Rules. Operation

is subject to the following two conditions: (1) this device nay

not cause harmful interference, and (2) this device must

accept any interference received, including interference that

may cause undesired operation.

Changes of modifications not expressly approved by the party

responsible for compliance could void the user’s authority to

operate the equipment.

Note: This equipment has been tested and found to comply

with the limits for a Class B digital device, pursuant to Part

15 of the FCC Rules. These limits are designed to provide

rea son able protection against harmful interference in a resi-

dential installation. This equipment generates, uses and can

radiate radio frequency energy and, if not installed and used in

accordance with the instructions, may cause harmful interfer-

ence to radio communications. However, there is no guarantee

that interference will no occur in a particular installation. If this

equipment does cause harmful interference to radio or televi-

sion reception, which can be determined by turning the equip-

ment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and

receiver.

-Connect the equipment into an output on a circuit different

from that to which the receiver in connected.

-Consult the dealer or an experienced radio/TV technician

for help.

A shielded cable must be used when connecting a peripheral

to the serial ports.

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