TPL Communications RF Power Amplifier : User's Manual : Page 5

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-OPERATING PRECAUTIONS

fJ CAUTION: This amplifier produces RF voltages that can cause painful and dangerous

l RF burns. Use caution! Connect and disconnect all RF connections with

the DC power and drive power off.

I DRIVE POWER: RF power transistors, although quite rugged in most respects, are easily

damaged by overdrive. Be careful no to overdrive this amplifier, even for

I an instant. Higher than rated drive power may destroy the transistor and

VOID ANY WARRANTY.

I TERMINATIONS: The efficiency of this amplifier will degrade if it is operated into anything

but a 50 Ohm load. Lowered effeciency may mean any, or all, of the follow

ing: lower power output, increased current drain, higher opearating tem-

1 perature, and reduced life time.

1 INSTAllATION

~ This unit is designed for mounting in a standard 19" rack. When picking a location in the rack,

cosideration must be given to the RF power output cable lengths, as well as cooling consider-

I ations.

Mount the unit where dust and other debris are not likely to clog the cooling fins. Avoid mount-

l ing the amplifier directly above hot pieces of equipment that could artificially raise the amplifi-

ers temperature.

I Connect the radio tranmsitter to the "RF INPUT" connector with a 50 Ohm c.~ble ~nd a type

, "N" plug. Connect the antenna to the "RF OUTPUT" connector on the amplifier with 50 Ohm

coaxial cable and a type "N" plug.

I Plug the AC line cord into the system AC power receptacle.1

For safety, ensure that the rack and all equipment connected to the amplifier have properAC

grounds. Do not rely on coaxial cable shielding. Assure the installation has proper lightning

protection (e.g. in line coaxial protectors manufactured by PolyPhaser Corporation or equiva-::1

lent).

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