Avoiding Rf Interference; Rf Hazard Precautions; Figure 2: Potential Rf Interference; Figure 3: Rf Hazard Precautions - Intellian v45C Installation & Operation User Manual

v45C - Maritime VSAT Antenna System

4.1.2 Avoiding RF Interference

Do not install the antenna near the high power shortwave radar. Most radar transmitters emit RF energy
within an elevation range of -15° to +15°. For this reason, it is recommended to position the antenna at least
4.6 m (15.09 feet) away from the radar.

4.1.3 RF Hazard Precautions

The antenna is designed to be used with radiation transmitting equipment manufactured by others.
Exposure to RF radiation, including exposure associated with an improper use of the transmit equipment,
may be hazardous to persons close to the above deck unit. Ensure the safety of personnel who work on the
system.
During transmission, ensure to keep the minimum safety distance. The recommended minimum safety
distance to the reflector on the focal line is about 12 m (39.37 ft), based on a radiation level of 1 mW/cm2
that applies under uncontrolled environment. No hazard exists >20° below the antenna's mounting plane.
Antenna
+15°
-15°
Antenna

Figure 2: Potential RF Interference

RF Radiation Hazard Area
12 m
(39.37 ft)
20°

Figure 3: RF Hazard Precautions

14
Radar
12 m
(39.37 ft)
20°