EH-5500FD Installation Manual
Page 28
2.10
Aligning the Antenna
The ODU antenna must be aligned on both local and remote ODUs. You must first
perform coarse alignment on each ODU, followed by fine alignment. Accurate alignment
of the ODU is critical for achieving the strongest possible receive signal.
To perform antenna alignment, the ODU must be in Alignment mode.
The ODU has three modes of operation:
Alignment
– Carrier Wave transmission. Used for antenna alignment.
Adaptive
– Operational mode used with adaptive bandwidth, code, and
modulation.
Static
– Operational mode used with a fixed modulation profile.
ODUs are shipped from the factory in Adaptive mode.
The ODU antenna must be aligned on both local and remote ODUs. You must first
perform coarse alignment on each ODU, followed by fine alignment. Accurate alignment
of the ODU is critical for achieving the strongest possible receive signal.
To perform antenna alignment, the ODU must be in Alignment mode.
The ODU has three modes of operation:
Alignment
– Carrier Wave transmission. Used for antenna alignment.
Adaptive
– Operational mode used with adaptive bandwidth, code, and
modulation.
Static
– Operational mode used with a fixed modulation profile.
ODUs are shipped from the factory in Adaptive mode.
2.10.1
Setting the ODU to Alignment Mode
Switch the EtherHaul ODUs to Alignment mode by inserting the DVM probes into the
AUX Interface sockets. The RF LED color indicator turns orange, indicating the ODU is in
Alignment mode.
The ODU remains in Alignment mode even if the DVM probes are ejected, until the ODU
is rebooted.
