DTV 744 8VSB 4 Channel Demodulator
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DTV 744 Product Specification
Product specifications are subject to change without notice.
RF Inputs
Input Frequency Range 53 to 810 MHz
Symbol Rate Range 10.76 Mbps
Input Data Range 2.5 to 80 Mbps
Input Signal Level -80 to -20 dBm
Input Impedance 75 Ohms, unbalanced
Input VSWR  <3.0:1 in 75-Ohm system
L.O. Leakage at Input <-60 dBm max
DVB-ASI Ouputs
Data Rate 19.39 Mbps
Serial Ports
Standard RS232, on Female DB-9 Connector
Baud Rates Terminal 115.2 kbps
Formatting 8 data-bits, one start, one stop-bit
half-duplex, pairty none
Ethernet Port
Physical Layer 10BaseT/100BaseT (twisted pair)
on RJ45 jack)
Media Access and Link Layers Terminal 115.2 kbps
Alarm and Warning Relays
Function De-energize for alarm so that power loss is recognized as an alarm
Type Form C
Rating 30VDC open circuit, 100 mAmax current closed
AC Power
Voltage 90-132 or 195-264 VAC
Fequency 50 or 60 Hz +/-2%
Power Consumption <35 Watts
Agency Approvals
UL UL1950 Latest revision
FCC Part 15B Class A
Operating Temperature 0 to +50C
Storage Temperature -20 tp +70 C
8VSB 4 Channel Demodulator: Make four (4) 8VSB signals readily available for insertion into digital video headends.