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Chapter 7 • Pointing the antenna
 
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1037312-0001  Revision A
Installing the OPI
To prepare for antenna pointing, attach the OPI to the receive 
cable from the LNB, as shown in Figure 46. Note that the OPI 
will not work unless it is enabled on the appropriate screen on the 
installation software. (Check the box labeled 
Enable OPI 
Display
.) For further details, see Outdoor Pointing Interface 
Operating Instructions (1031832-0001). 
OPI block If you use an OPI with a model J-type radio assembly, you must 
use a block (or filter). For details, including the specific block you 
should use, see the Hughes Field Service Bulletin (FSB), 
Standard OPI Configuration (FSB_060915_01A).
Install the block between the OPI and the radio as illustrated in 
Figure 46. If the block you use has two female F connectors (at 
both ends), you will have to make a jumper cable to connect to 
the OPI.
Figure 46:  OPI
T0172001
Hughes
Net
Block
(if required)
OPI
IDU
LNB