Bird Technologies 8329-300 - Manual (Page 23)

Chapter 4
Operating Instructions
There are no operating controls for the Model 8329-300
Attenuator. However, if it is equipped with a blower assem-
bly, BA-300, there will be an ON/OFF switch and a
BLOWER ON indicator lamp on the assembly. Read and be-
come familiar with the following instructions before operat-
ing the unit.
Initial
Adjustments
Before connection of the attenuator, perform the following
steps.
1. Wipe all connectors and insulator sur-
faces on the transmission line face
with a clean soft cloth.
2. Check the RF input connector. Clean
the connector if necessary. Use a self-
drying, non-residue forming contact
cleaner on the inaccessible portions of
the connector.
3. Check the input resistance of the
attenuator. Refer to the Maintenance
chapter.
Connection
WARNING
Never attempt to disconnect the equipment from the
transmission line while RF power is being applied.
Leaking RF energy is a potential health hazard.
The front or input end of the attenuator is identified by the
four inch (102mm) diameter die-cast aluminum disc on
which the connector is mounted. The rear face of the unit
has OUTPUT stenciled above the connector. Do not couple
the attenuator backwards to the direction of power flow. De-
struction of the output resistor will result.
1. Connect the attenuator input to the
transmitter’s power output. Use 50
ohm coaxial cable.
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