A summary of the GMRT Servo Specifications is given in Table 20.1.
Dish mount | Altitude-Azimuth mount. |
Drive | Dual drive in counter torquing mode. |
Dish movement | Azimuth +270 to 270 deg. |
Elevation 15 deg to 110 deg. | |
Dish slewing speed | Azimuth 30 deg/min. |
Elevation 20 deg/min. | |
Minimum Tracking speed | Azimuth 5 arcmin/min. |
Elevation 5 arcmin/min. | |
Maximum Tracking speed | Azimuth 150 arcmin/min. |
Elevation 15 arcmin/min. | |
Tracking & pointing accuracy | 1 arcmin for wind speed 20 kmph. |
Gear reduction ratio | Azimuth 18963. |
Elevation 25162. | |
Antenna acceleration | Full speed in 3 sec for both axes. |
Design Wind speed | 40 kmph Operational. |
80 kmph Parking. | |
133 kmph survival. | |
System operating voltage | 415 VAC, 3 Phase, 50 Hz. |
Antenna parking | Antenna parking using 96 V DC battery. |