User's Manual

VOLUME II, CHAPTER 1, SYSTEM OVERVIEW
Operational Limitations and Restrictions
Unlicensed band operation means sharing the air-space with other operators of unli-
censed band links. Interference is possible.
l IRU 600 5.8 GHz operation is 'narrow-band'; it competes/shares spectrum
with other narrow-band links and with spread-spectrum links.
l Performance could deteriorate over time with the introduction of other links in
the same geographical area.
l Antennas must be approved (FCC or Industry Canada) for 5.8 GHz unlicensed
band.
o
Eclipse 5.8 GHz is certified for use with a parabolic antenna with a
maximum gain of 45.9 dBi or a flat panel antenna with a maximum gain
of 28 dBi.
Common RFU for 5.8 GHz Unlicensed and L6 Licensed
The RFU for 5.8 GHz unlicensed is common with L6 licensed for easy transition and
sparing (from unlicensed to licensed and vice-versa). Links can be rapidly deployed
using 5.8 GHz unlicensed, and subsequently transitioned to L6 on license approval.
l The 5.8 GHz unlicensed band is designed to support easy and fast
deployment. With a suitable antenna, installation can be 'immediate'.
l The common 5.8 GHz / L6 RFU design means subsequent conversion to L6
licensed operation only requires replacement of the ACU.
5.8 GHz operation supports fast turn-up for new link require-
ments. On receipt of a license, operation can be converted to
L6 licensed band by replacing the ACU.
34 AVIAT NETWORKS