Alcad 905-TO Série Manuel D'installation Et Programmation page 35

34 - ENG Installation and programming manual
We recommend programming the lowest output frequencies in the TO
modules furthest from the amplifier, and successively programme higher
output frequencies. This achieves the best width-frequency response for the
TO module.
9.3 Level of the PA amplifier
Connect the field measurer to the TEST connector of the amplifier and verify
that the output of said amplifier is charged using a distribution cable or with
a 75 Ω charge, of the RS-275 (cod. 9120011) type. Tune the measurer to
the highest output channel and adjust the RF output signal level using the
regulator of the PA amplifier, taking into account that the TEST tap is at -30
dB.
OUT
TEST
EXT
Fig. 14 - Adjusting the amplifier level
WARNING: It is essential that the maximum output level reduction in
relation to the number of channels being amplified (including the EXT input
channels) should be taken into account. The maximum work level is
calculated by subtracting the reduction indicated from the maximum output
level indicated in the Table 5.