Technical Characteristics OPM-3
GENERAL
The OPM-3 tracking and re-pointing mount is in first instance designed to be employed in conjunction with a 3.8m Prodelin Model 1358 antenna. The Orbitracs motorization kit and associated controller provide instantaneous re-pointing and Inclined-Orbit tracking capability to this antenna system. The OPM-3 system can be procured as a whole or as retrofit to an existing antenna.
Mount type: Dual-axis motorized polar mount, fully counter balanced
Material: Hot-dip galvanized steel with stainless steel accessories
Antenna: 3.8m Prodelin Model 1385, C- band
Fixation: NP-mount or concrete base with mast as for original 1385.
Outdoor Electronics: Self contained enclosure on mast, with RJ-45 IP connection
FUNCTIONALITY
Azimuth Pointing : -85° / +30°, -55° / +55°, -30° / +85° (in-field selectable)
Inclined Tracking: Instantaneous for all satellites in view, up to 10° inclination
Pointing Error: Typically better than ± 0.2°under all conditions
Deployment Area: Anywhere within ± 80° Latitude
Power Recovery: Fully automatic, warm start 20 sec, cold start approx. 3min
In most cases a warm start will be made. Onlyif the power failure occurred when one of the motors was moving, a cold start will be made.
Real-time Clock: Accuracy better than ± 1 sec over lifetime (GPS controlled)
ACTUATORS
Type: Linear Ball-Screw Actuators with electric brake release
Motors: 48VDC maximum 500W
Linear speed: Nominally 12 mm/s, reduced by control electronics
Linear Force: Typical 12000N
Protection Class: IP-55 re-enforced
ENVIRONEMENTAL
Temperature: -20° to +40°
Windload: As for original antenna
Design Lifetime: Minimum 15 years
POWER
Supply voltage: 230VAC, 50-60 Hz
Rating: 500W when in motion (max 1% of time) – 20W when stationary
