QAM - Professional QAM Modulators

Professional Digital QAM 64/256 Modulator and or Upconverter with DVB ASI In and IF or RF Out. Fully meets or exceeds all industry (ITU) standards. Supports Ch 2-69. Setup via front panel LCD.

Dual 4050 is a versatile commercial quality dual IF and RF modulator for digital video applications. The Dual 4050 contains two QAM modulator cards in a 1RU chassis. In addition to front panel control, each Dual 4050 chassis is also fully remote controllable via a serial interface or SNMP module.

Professional Multichannel QAM Modulation System with support for 10 modulator cards. Housed in a 4 RU Rack. Management/Control module controls all 10 modulators. Setup via front panel LCD display or RS232 and SNMP. Inputs are DVB-ASI and DAVIC.

System Features:

• Independent QAM Modulator and Upconverter in a 1U chassis
• Fully agile upconverter covers entire frequency range of 53 to 857 MHz
• Fully synthesized tuning for drift free operation (12.5 kHz step size)
• Includes nonvolatile memory to save configuration through power down and power loss
• Programmable, remotely controllable units using RS232, RS485, Terminal or optional SNMP
• High reliability, state-of-the-art design using Microstrip MMIC and Surface Mount technology
• Conservative component derating and 100% burin in help ensure reliable operation
  

Further Information

Standard Features:

• Standard 44.0 MHz IF output
• Selection of data inputs including DVB parallel/synchronous serial, and DVB-ASI
• DVB, DAVIC (ITU-T J.83 Annex A) and DigiCipher IIT (ITU-T J.83 Annex B) encoding available
• Selectable excess bandwidths of 13%, 15% and 18%
• Internal Power Detector for IF output ensures ease of operation
• Microprocessor control ensures optimum performance
• Non-volatile memory to store operating configuration and to protect against power failures
• High reliability is enhanced by a high level of integration, minimizing interconnections
• Can generate pseudorandom data sequence or CW for test purposes
• Standard 44.0 MHz IF output
• Selection of data inputs including DVB parallel/synchronous serial, and DVB-ASI
• DVB, DAVIC (ITU-T J.83 Annex A) and DigiCipher IIT (ITU-T J.83 Annex B) encoding available
• Selectable excess bandwidths of 13%, 15% and 18%
• Internal Power Detector for IF output ensures ease of operation
• Microprocessor control ensures optimum performance
• Non-volatile memory to store operating configuration and to protect against power failures
• High reliability is enhanced by a high level of integration, minimizing interconnections
• Can generate pseudorandom data sequence or CW for test purposes

Card Features:

• Standard 44.0 MHz IF output
• Selection of data inputs including DVB parallel/synchronous serial, and DVB-ASI
• DVB, DAVIC (ITU - T J.83 Annex A) and Digicipher II ™ (ITU - T J.83 Annex B) encoding available
• Selectable excess bandwidths of 13%, 15%, and 18%
• Internal Power Detector for IF output ensures ease of operation
• Microprocessor control ensures optimum performance
• Non-volatile memory to store operating configuration and to protect against power failures
• High reliability is enhanced by a high level of integration, minimizing interconnections
• Can generate pseudorandom data sequences for test purposes
  

System Features:

• Local control via LCD and 4 soft touch push buttons
• Remote frequency and level agile via RS232/RS485 or optional SNMP
• Fully digital filtering and modulation provides the highest accuracy QAM output signal
• Durable design is reflected in the stainless steel chassis and Lexan labels
• International internal switching power supply (100-240 VAC)

Further Information

QUAD, QPSK to QAM Transmodulator

The VCom QTM2020 provides a complete solution for a transparent stand alone Quad QPSK to QAM Transmodulator. The QTM2020 system includes universal AC input power supply, and LNB DC supply. Control and configuration of the system is available not only locally via front panel controls, but also remotely via an RS485 or RS232 connection to a PC or modem. Full frequency coverage of 53 to 860 MHz cable band is possible with combinations of internal VHF and UHF modules.

System Features:

• LNB DC supply, 13/18V switchable
• Universal AC supply input (100 to 240 VAC, 50/60 Hz)
• Local control via LCD and front panel push buttons
• Remote control via RS232/RS485 standard with every system
• Easy to use Windows control software permits monitoring and rapid system setup
• FLASH memory for fast, easy firmware updates
• Highly reliable - fully automated operation
• High Density - no need for rack spacing between units
  

Transmodulator Features:

• Four independent fully frequency agile input and output QPSK to QAM transmodulators
• Transparent processing of QPSK satellite signals to QAM cable format - DVB and DigiCipher IITM compatible
• Two Internal Transmodulator modules cover full 53 to 860 MHz band
• +47 dBmV output power (adjustable)
• Automatic selection of symbol rate, Viterbi code rate and I/Q inversion based on I/P signal
• On-board microprocessor and memory (NVRAM) maintains all settings through power-down
• Random data output available for test purposes
• Status and alarm indicators from each internal module are displayed on front panel