Evertz Microsystems Ltd.

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7780DM-VSBQAM-A, 7780DM-VSBQAM

ATSC/QAM Demodulators

VistaLINK® enabled

The 7780DM-VSBQAM series is a complete hardware based solution for demodulating digital terrestrial ATSC/8VSB DTV signals or QAM cable signals. With a modular form-factor, the 7780DM-VSBQAM represents one of the highest density and most flexible solutions in the industry.

Applications include signal reception for cable, DTH and IPTV providers, or any other small to large head-end operators who need to receive and distribute local content. The 7780DM-VSBQAM provides an ASI output, ideal for turnaround, transcoding, monitoring or other applications where the received signal remains in the compressed domain. For baseband output, the demodulator may be coupled with an Evertz decoder module, providing a full receiver solution.

Monitoring parameters such as MER, BER and packet errors present a convenient solution for broadcasters and cable companies who wish to not only receive, but also remotely monitor signal quality. These parameters as well as full control of the demodulator are relayed over SNMP, for convenient remote access using Evertz' own VistaLINK® PRO SNMP monitoring and control package.

Features
  • Same module is capable of demodulating ATSC off-air or QAM cable signals
  • Signal quality monitoring, including MER, BER and packet errors
  • RF loop out for signal monitoring or distribution
  • Multiple ASI outputs for signal distribution
    • The 7780DM-VSBQAM-A provides a convenient analog tuner, with monitoring-grade analog video and one channel of audio output for analog CATV input signals
    • Built-in SNMP agent and Ethernet port for monitoring and control or monitoring through a 7700FC Frame controller
Block Diagram Block Diagram

Specifications

RF Inputs
Number of Inputs1 with loop out
ConnectorBNC per IEC 61169-8 Annex A
Channel Bandwidth6MHz, 7MHz, 8MHz
RF Input Range50 to 860MHz
Input Power-40 to +20dBmV per carrier
Outputs
Number of Outputs
ASI
7780DM-VSBQAM4
7780DM-VSBQAM-A2
Analog
7780DM-VSBQAM-A1 Video + 1 Audio
ConnectorBNC per IEC 61169-8 Annex A
Control
  • 1xRJ45 10/100 control port
  • SNMP/VistaLINK via 7700FC
Modulation Formats Supported
8VSB De-modulation
StandardATSC Per A53
QAM De-modulation
StandardITU-TJ.83 annex B
QAM 64, 256
Monitored parameters
  • Demodulator lock
  • MER
  • BER
  • Packet errors
Electrical
Voltage+12V DC
Power12 watts
EMI/RFIComplies with FCC Part 15, Class A
EU EMC Directive
Physical
Number of Slots1

Ordering Information

7780DM-VSBQAM-A8VSB/QAM/Analog Demodulator with RF Input
7780DM-VSBQAM8VSB/QAM Demodulator with RF Input
Ordering Options
NotesRear plate must be specified at time of order - eg: [model]+3RU
Consult Evertz for applications requiring DVB-CI Conditional Access support
Rear Plate Suffix
+3RU3RU rear plate for use with 7800FR, 7801FR or 7700FR-C Multiframes
Enclosures
7700FR-C3RU Multiframe which holds 15 modules
7800FR3RU Multiframe which holds 15 modules
7800FR-QT3RU Quiet Multiframe which holds 15 modules
7801FR1RU Multiframe which holds 4 modules