User's Manual

III-3
The amplification of the TAV-2000 is comprised of (2) TAV-1000 1000-watt power amplifiers. Firstly,
the output of the modulator or processor gets split into (2) RF signals of equal amplitude. Each
output of the 2-way power divider is then fed into a TAV-1000 Power Amplifier. Finally, the outputs
of each TAV-1000 are combined to generate 2000-watts of peak visual power in addition to an aural
carrier, as seen in the TAV-2000 block diagram.
Inside the 1000-watt power amplifier, the signal passes through an RF attenuator to limit the
output power level of the power amplifier and to help buffer any transients that may come into
the power amplifier. After attenuation, the signal gets preamplified through a VHFTV-25 and a
VHFTV-200 driver amplifier before the signal gets split into (4) signals for final amplification
using a 4-way Wilkinson microstrip power divider. The final amplification stage is comprised of
(4) VHFTV-400 final amplifiers. The outputs of the (4) final amplifier pallets are combined with a
4-way Wilkinson microstrip combiner and pass through an isolator as illustrated in the following
TAV-2000 block diagram.