Installing the WaveACCESS NET System 2-5
There is a drop in the antenna gain at 90
°
edges (as
much as 3 dB). Therefore, you should overlap these
antennas and try to use only half the beamwidth as the
sector width. When using these antennas (especially the
ST16), down tilt must be taken into consideration.
Narrow Sector Panel Antennas
These antennas are suitable for narrow sectorization of
the Central Unit POP. They are the best choice when
the remote sites are clustered in small areas. With these
antennas, there is a sharp cutoff of the antenna gain.
Therefore, you should overlap them using
approximately half the beamwidth as the sector width.
Antenna Specifications
The tables on the following pages show the antenna
options and their specifications. These figures reflect a
6-10 dB fade margin over ideal free space propagation
and use the shortest permitted cable (see the minimum
cable segment length in the table on page 2-10). It is
assumed that the remote end (WaveACCESS NET
SDR132 or WaveACCESS NET MDR132) uses its largest
antenna, PG24, and the shortest permitted cable. The
central antenna is assumed to have a horizontal
deviation from the remote equal to a quarter of its
horizontal beamwidth.
Note:
Irrelevant in the case of Omni antennas.
The available antenna options depend on your
country's regulations (for example, FCC Part 15, ETSI
ETR-328, and so on). Not all options may be available
in your country.
