User's Manual

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD ATSC Board Descriptions
Transmitter/Regenerative Translator
Instruction Manual, Rev. 2 118
(A5) 2 Way Splitter Board (1313158)
The 2-way splitter board takes the RF Input at J1 (≈12.5 Watts ATSC) on the board and
splits it into two equal outputs (≈5Watts ATSC), which are connected to the inputs of
the two 878A or 888A amplifier pallets at J1.
(A5) 4 Way Splitter Board (1308933)
The 4-way splitter board takes the RF Input at J1 (≈11Watts ATSC) on the board and
splits it into four equal outputs (≈4.75Watts ATSC), which are connected to the inputs of
the four 878A amplifier pallets at J1.
(A1-A4) 878A Amplifier Pallets (1314098, 1313170 or 1310138)
There are two 878A Amplifier Pallets mounted on the two pallet Amplifier Heatsink
Assembly and there are four 878A Amplifier Pallets mounted on the four pallet Amplifier
Heatsink Assembly. Each of the 878A pallets has approximately +16dB of gain for the
UHF frequency range of 470 to 860 MHz. The pallets operate Class AB and generate 150
Watts ATSC with an input of 4.75 Watts ATSC.
(A1-A2) Dual 888A Amplifier Pallets (1314173)
There are two 888A Amplifier Pallets mounted on the two pallet Amplifier Heatsink
Assembly. Each of the 888A pallets has approximately +16dB of gain for the UHF
frequency range of 470 to 860 MHz. The pallets operate Class AB.
(A1-A4) 888A Amplifier Pallets (1315347)
There are four 888A Amplifier Pallets mounted on the Amplifier Heatsink Assembly.
Each of the 888A pallets has approximately +15dB of gain for the UHF frequency range
of 470 to 860 MHz. The pallets operate Class AB and generate approximately 230 Watts
ATSC with an input of 8 Watts ATSC.
(A6) 2 Way Combiner Board (1313155)
The 2 way combiner board takes the two RF Inputs at J4 & J5 (≈230Watts ATSC) on the
board and combines them to a single output (≈375Watts) at J1, which is connected to
J2 the 7/16” (1.1cm) Din RF output jack of the drawer.
(A6) 4 Way Combiner Board (1312368)
The 4 way combiner board takes the four RF Inputs at J4, J5, J6 & J7 (≈150Watts ATSC)
on the board and combines them to a single output (≈500Watts/600Watts) at J1 that
connects to J2 the 7/16” (1.1cm) Din RF output jack of the drawer.