Trimble Outdoors SPSX51 - Manual (Page 6)

Safety Information
4 SPSx51 Modular GPS Receivers User Guide
• All equipment must be properly grounded according to Trimble installation
instructions for safe operation.
• All equipment should be serviced only by a qualified technician.
For license-free 900 MHz radio
1
C CAUTION – For your own safety, and in terms of the RF exposure requirements of the
FCC, always observe the precautions listed here.
• DO NOT operate the transmitter when someone is within 20 cm (7.8 inches) of
the antenna.
• Do not co-locate the antenna with any other transmitting device.
For Bluetooth radio
The radiated output power of the internal Bluetooth wireless radio is far below the
FCC radio frequency exposure limits. Nevertheless, the wireless radio shall be used in
such a manner that the Trimble receiver is 20 cm or further from the human body. The
internal wireless radio operates within guidelines found in radio frequency safety
standards and recommendations, which reflect the consensus of the scientific
community. Trimble therefore believes that the internal wireless radio is safe for use by
consumers. The level of energy emitted is far less than the electromagnetic energy
emitted by wireless devices such as mobile phones. However, the use of wireless radios
may be restricted in some situations or environments, such as on aircraft. If you are
unsure of restrictions, you are encouraged to ask for authorization before turning on
the wireless radio.
Installing antennas
C
CAUTION – For your own safety, and in terms of the RF exposure requirements of the
FCC, always observe these precautions:
– Always maintain a minimum separation distance of 20 cm (7.8 inches) between yourself
and the radiating antenna.
– Do not co-locate the antenna with any other transmitting device.
This device has been designed to operate with the antennas listed below. Antennas not
included in this list are strictly prohibited for use with this device. The required
antenna impedance is 50 ohms.
The antennas that can be used (country dependent) with the 450 MHz radio are 0 dBi
and 5 dBi whip antennas. The antennas that can be used (country dependent) with the
900 MHz radio
are 0 dBi, 3 dBi, and 5 dBi whip antennas.
To reduce potential radio interference to other users, the antenna type and its gain
should be so chosen so that the equivalent isotropically radiated power (e.i.r.p.) is not
more than that permitted for successful communication.
1. 900 MHz radios are not used in Europe.