User's Manual

Liberator-V1000 User Manual Rev 04v05
Page 25 of 85 FBN Doc #: FBN-0125_04v05
Figure 26 - Connection of a voltmeter for fine alignment on Liberator-V1000
The Alignment Interface is to allow the connection of a voltmeter during terminal installation. During
installation a DC voltage between 0.5 and 4V is output, which is proportional to the receive signal strength.
The higher the voltage, the higher the receive signal strength (RSSI). See Appendix A.2.3 for graphs of the RSSI
voltage.
Figure 27 - Alignment voltage vs. RSSI (see Appendix A.2.3)
Follow the scanning pattern example below to find the peak voltage on the voltmeter; you must follow this
pattern fully to ensure that you are not aligning on to a side lobe of the antenna. The main beam is 15 dB
higher than the side lobes and in clear line of sight is obvious when found.
Figure 28 – Scan Pattern to Use During Alignment