Specifications

FibeAir 4800 Installation and Operation Guide Appendix D AIND Antenna Alignment Procedure
FibeAir 4800 Installation and Operation Guide D-3
When the SA reads the expected receive signal, the antennas are aligned and
there is an indication of a good link between the sites.
6. Tighten the antenna azimuth axis and elevation axis.
7. Stop the CW function. The NMS will restart the system.
8. Connect FA4800-AIND unit to external antenna. See FA4800 Installation and
Operation Manual for details. The operational link is shown in Figure 2-3.
9. Configure FA4800 NMS at both sites to operate at the pure channel frequency
found in the RF survey. FA4800 is now ready for operation.
D.3 Configuring the Link
1. Run the Installation Wizard in the FA4800 Manager Software to set the
configuration of the link. Configure the link in accordance with the parameters
calculated in the Link Budget Calculator.
2. FA4800 has a unique identification number, the SSID. Each side of the link
looks for its partner with the same SSID. Therefore both sides of the link must
be configured with the same SSID.
3. The FA4800 link is now ready for operation.
D.4 Evaluating the Link
With the link operating at a pure channel as determined by the
RF survey procedure, the recommended performance threshold of an FA4800 link
is the following:
RSS: –84 dBm minimum
There are cases when there is no line of sight, but still the link is of an acceptable
quality.
If the link is not within the acceptable limit, see Troubleshooting.
D.5 Troubleshooting
If the link is not within the acceptable limit as defined in Evaluating the Link, check
the following:
Verify that both antennas have the same polarization (horizontal/vertical).
Check all the FA4800-AIND cable connectors for faulty connections.
Verify that there are no obstacles in the Fresnel zone of the antenna path such
as large buildings, trees, etc.