Hughes AN6-098P, Installation Manual

Page: 77 / 98

Chapter 7 • Pointing the antenna
1037312-0001 Revision B
61
Installing the DAPT
To install the DAPT, you need:
•
The DAPT, Hughes P/N 1501471-0002
•
A 22 kHz filter, P/N 1500950-0001
•
Two short jumper cables
To use the DAPT for Ku-band antenna pointing, you must use the
filter specified above.
For the jumper cables, use the same cable type as the IFL cables
with male F connectors. Use short jumpers to keep the DAPT
close to the antenna so it can be easily read during pointing.
Install the DAPT as follows:
1. Make sure the IDU is powered ON.
2. Make sure the transmit cable is connected between the radio
transmitter (IFL connector) and the IDU (SAT OUT
connector).
3. Disconnect the receive cable from the low-noise block
converter (LNB) on the radio.
4. Use the jumper cables to connect the DAPT and filter inline
between the IDU and the LNB, exactly as shown in
Figure 44.
Figure 44: Installing the DAPT
DAPT
To
IDU
To LNB
on radio
assembly
22 kHz filter
Label on
rear panel:
IDU
Label on
rear panel:
LNB
Label:
TO OPI
Label:
TO LNB
Receive
cable Jumper
Jumper