Campbell RF407 Series, Instruction Manual

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RF407-Series Spread Spectrum Radio
9
In order to comply with the FCC RF exposure requirements,
the RF407 series may be used only with approved antennas
that have been tested with these radios and a minimum
separation distance of 20 cm must be maintained from the
antenna to any nearby persons.
Approved Antennas
Campbell Scientific
Part Number Description
14201
900 MHz 9 dBd Yagi Antenna with Type N Female
and Mounting Hardware
14204
900 MHz 0 dBd Omnidirectional 1/2 Wave Whip
Antenna with Right Angle and RPSMA Male
14205
900 MHz 6 dBd Yagi Antenna with Type N Female
and Mounting Hardware
14221
900 MHz 3 dBd Omnidirectional Antenna with
Type N Female and Mounting Hardware
14310
900 MHz 0 dBd Omnidirectional 1/4 Wave Whip
Antenna, Straight 3 inches Tall with RPSMA Male
15730
900 MHz 0 dBd Omnidirectional 1/4 Wave Whip
Antenna with Right Angle and RPSMA Male
15731
900 MHz 0 dBd Omnidirectional 1/4 Wave Whip
Antenna, Straight 2 inches Tall with RPSMA Male
15970
900 MHz 1 dBd Dipole Antenna with Adhesive
Mount and RPSMA Female 79 in. Cable
7.7.2 Electrostatic Issues and Surge Protection
Many radio installations are outdoors and therefore susceptible to lightning
damage, especially via the antenna system. Also, depending on climate and
location, electrostatically-charged wind can damage sensitive electronics, if
sufficient electric charge is allowed to accumulate on the antenna and cable.
To protect against electrostatic damage, the antenna connector of the radio is
connected to the radio case which can be tied to a good earth ground for
discharge of electrostatic build up.
Also to protect against electrostatic damage, Campbell Scientific offers pn
31314, Antenna Surge Protection Kit. The surge protection kit includes a
PolyPhaser ® surge protector, a coax jumper for connecting the RF407-series
radio to the PolyPhaser, ground wire lead, and mounting hardware. The
PolyPhaser has Type N jack connectors on both ends; one for connection to a
COAXNTN-L cable and the other for connection to the 18-inch length of
COAXRPSMA cable included in the kit. To have the surge protection kit pre-
installed by Campbell Scientific (bulkhead-mounted through the enclosure
wall), see pn 31312.
CAUTION