User's Manual Addendum

Trimble Navigation January 3, 2006
Gerardo Torres
Addendum to Draft of Trimble SPSx50 User Manual
1. RSS-310, RSS-Gen and RSS-210 statements regarding antennas:
for 450 MHz radio
This device has been designed to operate with the antennas listed below, and
having a maximum gain of 5 dBi. Antennas not included in this list or having
a gain greater than 3 dBi are strictly prohibited for use with this device. The
required antenna impedance is 50 ohms.
The antennas to be used with this radio device are 0 dBi, 3 dBi and 5 dBi whip
antennas.
for license-free 900 MHz and Bluetooth radios:
To reduce potential radio interference to other users, the antenna type and its
gain should be so chosen that the equivalent isotropically radiated power
(e.i.r.p.) is not more than that permitted for successful communication.
2. RF exposure warning statements:
for 450 MHz radio
Safety. Exposure to RF energy is an important safety consideration. The FCC
has adopted a safety standard for human exposure to radio frequency
electromagnetic energy emitted by FCC regulated equipment as a result of its
actions in General Docket 79-144 on March 13, 1986.
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 within two feet (0.6
meter) of the antenna.
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 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:
CAUTION – For your own safety, and in terms of the RF Exposure
requirements of the FCC, always observe the precautions listed here.