Hughes DIRECWAY AN4-074-DF - Manual (Page 55)

Chapter 5 • Pointing the antenna
1035567-0001 Revision A
39
By obtaining the strongest possible signal you ensure that the
terminal can use all the system’s capacity.
Personnel requirements One person can point the antenna if an OPI is used. Otherwise,
pointing is usually a two-person task. One person aims and
adjusts the antenna while the other watches the signal strength
display on the computer and relays the readings to the person at
the antenna. A portable telephone or walkie-talkie is helpful for
this.
Pointing parameters Prior to antenna pointing, you use the installation software to
enter parameters such as longitude, latitude, and polarization
angle. Or you can enter the local ZIP code and let the software
calculate these values.
Outdoor pointing interface The OPI, shown in Figure 34, is an optional tool that eliminates
the need for a laptop computer on the roof. It is a portable
repeater that displays the same values as are shown on the
computer running the installation software.
Figure 34: OPI (optional tool)
Cable
connector
Display