Table 4-12: Acu Technical Data - Harris Constellation Installation And Maintenance Manual

Installation and Commissioning

Table 4-12: ACU technical data

Ports
Antenna
port
Expansion
port
Transmit monitor port
Transmit RF in
Receive RF out
a. Verify that the antenna waveguide is grounded according to
recommended or regulatory practice.
b. Determine and prepare the length(s) of flexible waveguide needed to
connect the antenna(s) to the radio.
c. Install the waveguide.
d. Remove the Port Cover from the ACU. See
Harris Corporation
6 GHz CMR-137 flange with all tapped
mounting holes for No. 6-32
screws.
7/8 GHz CMR-112 flange with all tapped
mounting holes for No. 6-32
screws.
10/11 UG39/U flange with all tapped
GHz mounting holes for No. 8-32
screws.
6 GHz CMR-137 flange with all tapped
mounting holes for No. 6-32
screws.
7/8 GHz CMR-112 flange with all tapped
mounting holes for No. 6-32
screws.
10/11 UG39/U flange with all tapped
GHz mounting holes for No. 8-32
screws.
SMA female connector. A calibrated monitor port,
approximately
The exact number is on the label "Coupling loss from
antenna flange".
SMA female connector.
SMA female connector.
CPR-137 spacer
adapter
CPR-112 spacer
adapter
CPR-90 spacer
adapter
The waveguide
termination can be
removed to gain
access to this port.
Optional waveguide
pieces to interface to
other radios are
available upon
request.
−
30 dB down from the top of rack.
Figure 4-13.
4-19
Constellation™