User's Manual

Table Of Contents
x Link CX User Manual, Version A
Microwave signal levels that give rise to hazardous radiation levels can exist within transmitter power
amplifiers, associated RF multiplexers, and antenna systems.
Antenna Warning
Designed for point-to-point operation, the Link CX microwave radio system uses directional antennas to
transmit and receive microwave signals. These directional antennas are usually circular or rectangular,
are generally located outdoors, and are usually mounted with the Link CX on a tower or mast.
The Link CX is classified as a fixed installation product, and per FCC policy guidelines regarding
maximum permissible exposure (MPE), antennas used for this interWAVE radio must be installed to
provide a separation distance of 2 m (79 in.) or more from all persons during normal operation to satisfy
FCC RF exposure limits. As the Link CX is typically mounted on a building or mast high enough to clear
ground-level path obstructions, the general population will be further than 2 m (79 in.) from the radio
antenna, and the FCC RF exposure limits will be met.
interWAVE Communications, Inc. fully supports the FCCs adopted MPE limits, and recommends that
personnel stay 2 m (79 in.) or more from the front of all directional microwave antennas. Should you
have questions about Link CX microwave signal radiation, please contact interWAVE Customer Support.
FCC Regulatory Information
The Link CX is certified for use in the 5.3 GHz and 5.8 GHz unlicensed bands in the United States.
The 5.3 GHz version of the Link CX is certified under FCC part 15.407, U-NII regulations covering the
frequency band of 5250-5350 MHz.
5.3 GHz (5.25-5.35 GHz)
5.3 GHz Link CX radios are equipped with an integral antenna only, and operate under the FCC Part 15,
subpart E, U-NII license-exempt regulations, which certify the radios for 1.0 dBm average, or
+7.4 dBm peak transmit power. The 5.3 GHz Link CX radios have been certified in the following
configuration:
Link CX, 5.3 GHz, integral antenna
The following table summarizes the technical specifications of the 5.3 GHz version of the Link CX.
Never look into the front of an open RF connection or RF antenna as eyes
are particularly vulnerable to radiation. Do not disconnect RF coaxial
connectors, open microwave units, or break down any microwave
screening while the radio equipment is operating.