Radwin 2000+ SERIES, User Manual

Page: 63 / 276

RADWIN 2000+ Series User Manual Release 4.2.40 4 ‐ 39
Antenna Alignment
Figure 4 ‐ 56: Waterproofing an external connection
4.11 Antenna Alignment
• An audible buzzer is used on both the Master ODU and the Slave ODU. If the external
antenna is positioned so far away from the unit so as to make the buzzer inaudible, you
may need to use two people to perform antenna alignment.
• Antenna alignment is carried out in three stages:
• Master ODU gross alignment
• Slave ODU fine alignment
• Master ODU fine alignment
4.11.1 Antenna Alignment Procedure
1. Ensure that power is connected to all radio units.
2. If you are working with an external antenna, connect the vertical polarization
connector of the antenna to the ANT 1 connector of the radio unit, and the
horizontal polarization connector of the antenna to the ANT 2 connector of the
radio unit.
3. Ensure that the buzzer on both radio units is configured to Auto (see Link
Configuration Tool Bar on page 7 ‐ 27 ). An unaligned ODU starts beeping 20 seconds
after power up, and continues beeping until it is aligned.
There is no particular reason to use ANT 1 and ANT 2 in that order: They
just have to be the same for each ODU in the sector. Further, adopting a
convention like “ANT 1 is always vertical” avoids mistakes across a large
sector.