Power Amplifier Block Diagram - Hitachi E-Compact Medium Power Series Operation Manual

8 7
H

6.2.3. Power Amplifier Block Diagram

PA702MP
G
USB Comm
Alarms Led
F
FAN 1
E
FAN 2
D
FAN 3
C
B
Power Supplies Comm.
A
Power Supplies Comm.
8 7
6
USB Comm
Alarms Led
Control
Fan Control
Drive Control
PA Control
PA 2
Driver
PA 1
DC Power Line
42 ~50VDC
2400 Watts MAX
DC Power Line Output 42
~50VDC
Power Supply 1
+5VCC +5VCC
Communication.
DC Power Line Output 42
~50VDC
Power Supply 2
+5VCC +5VCC
(OPTIONAL)
Communication.
6
5 4
E-Compact Medium Power
470 ~ 806MHz
GAIN = +52dB ±4dB
POUT: 215 W @ ATSC3.0
POUT: 225 W @ ATSC1.0
Control Module / Exciter Int erface Control Module / Exciter
Communication – Drawer Address Comm. – Drawer Address
+5Vcc +5Vcc
Power Supplies Interface
Power Supplies Comm.
Communication
FWD Power
REF Power
Power Amplifiers
Peak
Reflectometer
Carrier
1 1
AC Input
AC Input
5 4
3 2
NOTES:
1 – See PA702MP
Channel Range
Table
RF OUT
53.30 to 53.52 dBm
Comm
RF SAMPLE
+10dBm (-43dB)
RF IN
0.0 ~ 8.0 dBm
Block Diagram
PA702MP
AC Line
3 2
1
H
G
F
E
D
C
B
A
51 | 106
1