Installation Chapter 5
RADWIN 2000 User Manual Release 2.6.40 5-10
.
Figure 5-9: Transmission Power and Antenna Parameters
The choice of Tx Power, antenna gain and cable loss (between the radio and the antenna)
determines the EIRP and is affected by such considerations as radio limitations and regulatory
restrictions.
Before proceeding to antenna installation details, the following background information
should be considered:
About Single and Dual Antennas
Each RADWIN 2000 ODU is made of two radio transceivers (radios). The radios make use of
algorithms that utilize both MIMO and Diversity resulting in enhanced capacity, range and link
availability. The number of antennas (i.e. radios) used is determined by user configuration
and by automatic system decisions, explained below.
Dual Antennas at Both Sites
When using dual antennas at both sites (single bipolar antenna or two mo-unipolar antennas)
you can choose between MIMO Mode and Diversity Mode.
MIMO Mode
With MIMO the system doubles the link capacity. At the same time, it keeps the same rate
and modulation per radio as was used with single antenna, thus increasing capacity, range
and availability.
To Next Page
Loading...
