User's Manual Part 1

Single Antennas at Both Sites Chapter 4
RADWIN 1000/2000/5000 User ManualVersion 2.6.50p1 4-21
For example with a dual antenna RADWIN 1000/2000/5000 can transmit at
modulation of 64QAM and FEC of 0.83 and get an air rate of 130 Mbps,
compared to 65 Mbps with single antenna.
To work in this mode, each antenna port must be connected to an antenna,
the RSS level in both receivers should be balanced and a minimal separation
between the antennas must be maintained. (For example, by using dual
polarization antennas a cross polarization separation is attained).
Upon selecting Antenna Type as Dual, RADWIN 1000/2000/5000 automati-
cally doubles the air rates.
RADWIN Manager indicates a case of unbalanced RSS between the two
antennas.
Single Antennas at Both Sites
By selecting a single antenna at both sites the ODUs operate with a single
radio that is connected to the ANT 1 connector. The second radio is auto-
matically shut down.
Single and Dual Antennas
In this mode one of the sites uses the ODU with a single antenna while the
other site uses the ODU with a dual antenna.
The advantages in this mode in comparison to using a single antenna in
both sites are doubled total Tx power and additional polarization and/or
space diversity.
RADWIN 1000/2000/5000 automatically switches to this mode if one of the
ODUs is connected to a dual antenna or if the RSS at one of the ODU receiv-
ers is below minimal level.
The air rates used in this mode are same as when using single antennas in
both sites.