Software Manual

120 ALFOplus 24GHz (North America) - Release 01.05.0x - MN.00395.E - 004
Fig.88 - Remote element list
9.6 OPTIMIZING ANTENNA ALIGNMENT WITH RX MEASUREMENT
When the whole radio link is on, antenna alignment can be optimised. Antenna alignment optimization is
performed depending on the Rx signal power at local and remote equipment and evaluating both local and
remote S/N value maximizing them.
There are two possibilities to see the Rx signal power level:
• through WebLCT interface
• through a voltmeter connected to Auxiliary connector on the ODU (F03608 cable - see Fig.51
).
In order to get the Rx signal power level via software, connect the PC to ALFOplus (LAN2) and start the
communication towards the ODU microcontroller with SCT/WebLCT supervisory program.
Into WebLCT is shown in the top status bar (Rx1A=-value dBm) see Fig.88
.
If you’re using a voltmeter the Rx signal power level is available on the auxiliary connector of ODU, the
measurement can be performed with a proper cable (see Fig.51
).
Following this last procedure, the voltage you’re reading with the voltmeter is proportional to Rx power
level, refer to Tab.21
.
Tab.21 - Voltage measured in auxiliary port
Received Signal (dBm) Signal Output (V) Error (dB)
-20 4.68 ±5
-30 3.51 ±5
-40 2.34 ±3
-50 1.17 ±3