Installation Manual

Exalt Installation and Management Guide
ExtendAir eMIMO Series Digital Microwave Radios
9 208363-001
2013-05-01
Link orientation and synchronization are more important for networks with site(s) where there is more
than one link of the same type or for sites using the same type of radio that are very close to each
another at one or both ends.
Configure collocated radio terminals for the same link orientation. That is, configure all radios at the
same location as Radio A or Radio B.
It can be advantageous to utilize link synchronization for collocated links. The radios allow the use of
an optional GPS synchronization kit. This synchronization controls the transmitter and receiver frame
timing so that collocated radios are transmitting at the same time and receiving at the same time. This
can substantially reduce the opportunity for self-interference. Without synchronization, collocated
radios may be transmitting and receiving at the same time, incurring near-end interference.
When synchronization is required or desired, the following configurations are recommended:
• For a two-radio network without GPS, use Internal Sync and connect a single cable between the
SYNC/RSL ports on both radios (see RSL/Sync Connector
for wiring instructions).
• For a two-radio network using GPS sync, use two GPS kits or one GPS kit and the ExaltSync
Collocation kit.
• For a network of two or more radios using Internal Sync, connect using the ExaltSync Collocation
kit.
• For a network of two or more radios using GPS Sync, connect using one GPS kit and the
ExaltSync Collocation kit, or connect using one GPS kit per link.
Radio A/B Configuration
Use the Exalt GUI to configure the radio terminals for Radio A and Radio B orientation. Since many
other parameters also need to be set, and the Exalt GUI is needed for these configurations, this is the
best way to completely configure the radio terminals.
Radios arrive from manufacture in default configuration, orientated as Radio B and configured as
shown in Table 1.
Note: It is not always necessary to synchronize collocated radios. If antennas are substantially
separated or blocked from one another and/or frequency separation tuning is used, the
opportunity for near-end interference can be eliminated.
Note: Refer to the ExaltSync Collocation Expansion Kit Quick Start Guide for instructions.
Table 1 Factory default settings
Parameter ExtendAir eMIMO Series Radio Settings
Frequency 5GHz models: 5788 MHz (5600 or 5785 MHz if the regulatory domain does not
allow 5788 MHz)
4.9GHz models: 4965 MHz
Transmit Power +4dBm
Link Distance <10 miles
Bandwidth 10 MHz