Codan Radio Communications AMP-2-450 Manual De Usuario

UHF AMP-2 30 W Power Ampliﬁer Instruction Manual

IM71-AMP2450-30

INSTALLATION AND

SITE OPERATION

GENERAL

The UHF AMP-2 RF power ampliﬁer module is

approved for operation with the MT 3 or

MT 4 exciter. Complete MT 3 subrack systems

shipped directly from the factory are normally

set to the appropriate options and output power

calibration as requested by the customer. These

units require no recalibration.

For UHF AMP-2 RF power ampliﬁers shipped

separately from the MT 3 subracks, install as

outlined:

Conﬁrm exciter and power ampliﬁer are aligned

for the same frequency. (See Alignment Procedure).

Remove the blank cover plates or TX-RX pair

in the “B” System subrack slot.

Install the UHF AMP-2 in slot 39 (visible via the

marker hole on the upper left UHF AMP-2 front panel).

NOTE: If the unit is being adjusted with the

extender card, a voltage drop of

+1.0 to +1.5 Vdc will occur when the

power ampliﬁer is transmitting. This

voltage drop must be compensated

to permit a valid power output

measurement.

Connect the output of the exciter to the input

of the UHF AMP-2 power ampliﬁer with the cable

provided.

Connect the antenna system and key the

transmitter. The LED indicators are deﬁned as follows: