Hitachi EC702HP, Руководство по эксплуатации

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M
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-
A
p
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1
6
÷
SAM PLE AF T ER FI LT ER P/ EXC . A
SAM PLE AF T ER FI LT ER P/ EXC . B
RF
SAMPLING
PROBE
MODULE 40052
PASS-BAND
IN OUT
FILTER
COAXIAL
RELAY
01 x RACK EIA 19” 25U
REA DING + 15V O F THE M CCB
+ 8V FROM MCCB MO DULE
SAMPLE AFTER
FILTER
SAMPLE BEFORE
FILTER
1,400W rms
UHF / ATSC
50

EIA 1 5/8”
ASI / 310M IN 1A
(800mVpp / 75

)
ASI OUT A
(800mVpp / 75

)
310M/
ASI IN
ASI OUT
ATSC DIGITAL
EXCITER
A
RF
OUT
+10.8dBm
220V
DI G IT AL
EXCI T ER A/B
R S485 220V
SAM PLE BEF OR E F ILTER P/ EXC . A
SAM PLE BEF OR E F ILTER P/ EXC . B
OUTPUT REFLE CTED
PO WER REA DI NG
OUTPUT DIRE CT PO WE R
REA DING
10MHz 10MHz
REF
O UT
REF
IN
MODULE 40153
RS485
DATA BUS
…
CO NTROL
I/O
ETHERNET REM OTE
+15V
FROM
MCCB
+7.35dBm
UHF POWER DRA WER
RF IN RF O U T
860 W
P1
MÓDULO 40001
EXC. B P1 P2
/ RJ45 CONTROL
+10.6dBm
+10.6dBm
MODULE
MODULE
OUT 1
IN1
OUT 2
MO D DIV 1:2
REA DING + 15V O F THE M CCB
+ 8V FROM MCCB MO DULE
SAMPLE AFTER
FILTER
SAMPLE BEFORE
FILTER
40032 C-QS2C/2-3A
DI G IT AL
EXCI T ER A/B
LO AD 1B
LO AD S D R AWER
ASI / 310M IN 1B
(800mVpp / 75

)
ASI OUT B
(800mVpp / 75

)
310M/
ASI IN
ASI OUT
ATSC DIGITAL
EXCITER
B
RF
OUT
220V
+10.8dBm
+7.35dBm 860W
MO D CO MB 2:1
C- H C40C
10MHz 10MHz
REF
O UT
REF
IN
RS485
MODULE 40153 CO NTROL
I/O
DATA BUS
…
ETHERNET REM OTE
FOR DIGITAL
EXCITER A/B
EXC. A P1 P2
/ RJ45 CO NTROL
+50V FR O M
MC C B M O D U LE
+15V +8V +5V +50V
THREE PHASE
220V / 38 0V
Figure 1-2
Block Diagram of the Transmitter model EC702HP
LO AD 1B
MO DUL E 40041
RF O U T
P2
220V
RF IN
R S485
MCCB
MO DUL E 40031

IN 2
OUT
IN 1
MODUL E 40001
UHF POWER DRA WER
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40028
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