Bird Technologies AT-800-Manual - Manual (Page 35)

Installation
17
Connecting the Antenna
Antenna leads and the Field Strength Antenna are
connected to the test port. A known good RF cable can
be used to connect the antenna tester directly to a cou-
pler box, bypassing the antenna system lead. A female
TNC connector is provided. Other connectors are avail-
able, see Parts List in the maintenance section for
more information.
Special consideration must be given to the RF energy
present at the feed line of site antennas. At active
sites, RF energy from transmitters can be coupled to
the antenna under test. If large enough, these signals
will cause inaccurate measurements. For best results,
the AT-800 should be used with all transmit antennas
powered down.
CAUTION
AVOID STATIC DISCHARGE
Use proper Electrostatic Discharge (ESD)
precautions to avoid static discharge when
making connections to the test port.
Equipment failure can occur if the test port is
subjected to ESD.
CAUTION
250mW max. input
Exceeding the maximum input will damage the
unit. Do not connect transmitter output to the
AT-800. Damage can also be caused by testing
antennas near other transmitting antennas. If
testing base station antennas, first measure the
power at the coax end to be sure it does not
exceed 250mW.