Service Manual

289
6802800U74-AN
Chapter 7: Radio Frequency Distribution System
Table 85: MTS 4 Expansion Cabinet RF Configurations on page 289 lists the RF configurations of the
MTS 4 Expansion Cabinet. In the table, Low Power is valid for both 400 MHz and 260 MHz versions of
the Expansion Cabinet, while High Power is valid for both 400 MHz and 800 MHz versions of the
Expansion Cabinet.
Table 85: MTS 4 Expansion Cabinet RF Configurations
RF Configura-
Max Power (W)
Cavity
RX Splitter
tion
Low Pwr
High Pwr
Combiner
1 – 2 BRs
TX/RX on 2 ant.
10
25
1
2
TX/RX on 2 ant.,
RX on 1 ant.
10
25
1
3
TX on 2 ant., RX
on 2 ant.
10
25
1
2
TX on 2 ant., RX
on 3 ant.
10
25
1
3
TX/RX on 1 ant.,
RX on 1 ant
8
20
1 + phasing
harness
2
TX/RX on 1 ant.,
RX on 2 ant.
8
20
1 + phasing
harness
3
TX on 1 ant., RX
on 2 ant.
10
20
1 + phasing
harness
2
TX on 1 ant., RX
on 3 ant.
10
20
1 + phasing
harness
3
3 – 4 BRs
TX/RX on 2 ant.
10
25
2 (comb)
2
TX/RX on 2 ant.,
RX on 1 ant.
10
25
2 (comb)
3
TX on 2 ant., RX
on 2 ant.
10
25
2 (comb)
2
TX on 2 ant., RX
on 3 ant.
10
25
2 (comb)
3
TX/RX on 1 ant.,
RX on 1 ant.
8
20
2 (comb) +
phasing har-
ness
2
TX/RX on 1 ant.,
RX on 2 ant.
8
20
2 (comb) +
phasing har-
ness
3
TX on 1 ant., RX
on 2 ant.
8
20
2 (comb) +
phasing har-
ness
2
TX on 1 ant., RX
on 3 ant.
8
20
2 (comb) +
phasing har-
ness
3