Stonex SC600 GNSS Receiver – User Manual
37
UHF 410-470 MHz / 902.4-928 MHz Data transceiver
General Antenna Installation Warning
1. All antenna installation and servicing are to be performed by qualified technical personnel only. When
servicing the antenna, or working at distances closer than those listed below, ensure the transmitter has
been disabled.
2. Typically, the antenna connected to the transmitter is a directional (high gain) antenna, fixed mounted on
the side or top of a building, or on a tower. Depending upon the application and the gain of the antenna, the
total composite power could exceed 90 watts ERP. The antenna location should be such that only qualified
technical personnel can access it, and that under normal operating conditions no other person can touch the
antenna or approach within 0.6 meters of the antenna.
You can see below a table showing the Antenna Gain versus Recommended Safety Distance:
Antenna Gain
0-5 dBi 5-10 dBi 10-16.5 dBi
Minimum RF safety-distance
0.6 meters 1.06 meters 2.3 meters
For USA: The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic
energy. Proper use of this radio modem results in exposure below government limits. The following
precautions are recommended:
DO NOT operate the transmitter when someone is located less than 20 cm (7.8 inches) of the antenna.
DO NOT collocate (place within 20 cm) the radio antenna with any other transmitting instruments.
DO NOT operate the transmitter unless all RF connectors are secure, and any open connectors are properly
terminated.
DO NOT operate the equipment near electrical blasting caps or in an explosive atmosphere.
All equipment must be properly used according to the installation instructions for safe operation.
All equipment should be repaired and calibrated only by a qualified technician
For Europe
The European Community provides some Directives for the electronic equipment introduced on the market.
All the relevant information’s are available on the European Community website:
http://ec.europa.eu/enterprise/sectors/rtte/documents/
The text of the Directive 99/05 regarding telecommunication equipment is available, while the applicable
Directives (Low Voltage and EMC) are available at:
http://ec.europa.eu/enterprise/sectors/electrical
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