4096-668
CPI Satcom & Antenna Technologies 1.8M Ka-BAND Rx/Tx ANTENNA
SECTION IV
ANTENNA POINTING
4.0
Alignment To Satellite
CPI’s 1.8 meter Az/El mount requires that the antenna be aligned to the satellite orbital arc
initially by a trained installer.
4.1
Initial Alignment
The 1.8 meter offset reflector contains a 17.35
o
elevation offset look angle. Therefore,
when the reflector aperture is perpendicular to the ground, the antenna is actually looking
17.35° in elevation.
1)
Aligning to satellite: Attach an inclinometer to the reflector support structure as
shown in figure 4.1. Add 17.35° to the reading on the inclinometer to accommodate
the reflector’s offset angle.
2)
Raise or lower the antenna to find the desired elevation by turning the 3/4" nuts
located at the elevation block. Position the top nut so that it will not interfere with
adjustment. Turn the bottom nut clockwise to increase elevation and counter
clockwise to decrease elevation.
3)
After the correct elevation angle is set, rotate the antenna in azimuth by loosening
the canister and turning the entire assembly on the mast pipe. Rotate azimuth until
a signal is reached.
4.2
Fine Tuning
Peak the antenna signal by fine adjustments made in both azimuth and elevation.
Securely tighten the eight canister set screws.
Use the bottom hex nut of the elevation adjustment rod to slowly raise and lower the antenna until
maximum signal is achieved.
Next, use the azimuth adjustment rod hex nuts to adjust left and right until maximum signal is
achieved.
Repeat steps #2 and #3 until maximum signal is achieved.
Securely tighten all hardware used for adjustment.
