Operation Manual

Manual Rev. 0.0
-
April 2016
÷
SA M PLE AFT ER FILTER P/ EXC . A
SA M PLE AFT ER FILTER P/ EXC . B
RF
SAMPLING
PROBE
MODULE 40052
PASS-BAND
IN OUT
FILTER
COAXIAL
RELAY
01 x RACK EIA 19” 25U
READING + 15V OF THE M CCB
+ 8V FROM MCCB MODULE
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
DIGITAL
EX CI T ER A/B
RS485
220V
SA M PLE BEFORE FILTER P/ EXC . A
SA M PLE BEFORE FILTER P/ EXC . B
OUTPUT REFLECTED
POWER READING
OUTPUT DIRECT POWER
READING
10MHz
10MHz
REF
O UT REF
IN
MODULE 40153
RS485
DATA BUS
…
CONTROL
I/O
ETHERNET REMOTE
+15V
FROM
MCCB
+7.35dBm
UHF POWER DRAWER
RF IN
RF OU T
860W
P1
MÓDULO 40001
EXC. B P1 P2
/ RJ45 CONTROL
+10.6dBm
+10.6dBm
MODULE
MODULE
OUT 1
IN1
OUT 2
MOD DIV 1:2
READING + 15V OF THE M CCB
+ 8V FROM MCCB MODULE
SAMPLE AFTER
FILTER
SAMPLE BEFORE
FILTER
40032 C-QS2C/2-3A
DIGITAL
EX CI 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
MOD CO MB 2:1
C-HC40C
10MHz
10MHz
REF
O UT REF
IN
RS485
MODULE 40153
CONTROL
I/O
DATA BUS
…
ETHERNET REMOTE
FOR DIG ITAL
EXCITER A/B
EXC. A P1 P2
/ RJ45 CONTROL
+50V FR O M
MC CB M O D ULE
+15V +8V +5V +50V
THREE PHASE
220V / 380V
Figure 1-2
Block Diagram of the Transmitter model EC702HP
LO AD 1B
MODUL E 40041
RF OU T
P2
220V
RF IN
RS485
MCCB
MODUL E 40031

IN 2
OUT
IN 1
MODULE 40001
UHF POWER DRAWER
LOADS
DRAWER
Section
1
-
Introduction
(UHF
Digital
TV
Transmitters)
E
-
Compact
-
Air
Cooling
-
ATSC
-
High
Power
1.4.4 Block Diagram of the System Figure
1
-
2
contains
the
block
diagram
of
the
1,400W
transmitter,
EC702HP
model.
1
-
7
+8V
REFLT
IN
OUT
MODULE
40028
LOW-PASS
FILTER
MOD 40055
TO DIGITAL EXCITER
A/B