1 Analog Video 2 Audio SD Digital TV Modulator QAM ATSC DVB-T 480i

1 x CVBS Baseband Composite Video / Audio Digital QAM, ATSC, DVB-T Modulator

Real-Time Encoder with Digital TV Modulator

Part Number H-VQAM-SD

Input: 1x CVBS

Output: 1x QAM - 1x Program

Thor part number H-VQAM-SD is a basic real-time hardware encoder combined with a digital TV channel modulator. This product was developed to reduce the cost of distributing basic video services over coax cable as a standard digital TV program. The system is built around a fast and reliable MPEG-2 encoder based on a high-speed FPGA processor. Video inputs are first digitized by an ADC circuit, then encoded to MPEG-2 format by the processor. The MPEG-2 transport stream is then modulated onto an RF carrier by a frequency-agile modulator circuit. All standard digital TV frequencies from 35-960 MHz are supported, with worldwide QAM modulation standards. With full QAM annex J.83A, J.83B, and J.83C support, these systems can be used for both US QAM and European DVB-C.

All program settings are entered via a simple front panel keypad and LCD monitor. This keeps the VQAM platform as inexpensive and purpose-built as possible. VQAM is the most reliable and affordable modulator for digital TV in its class. Digital TV requires real-time MPEG encoding, and therefore has previously been out of reach for consumer applications. VQAM breaks through this cost barrier, allowing AV integrators and home theater enthusiasts to finally distribute live video throughout a home or business over existing coaxial cable as a live digital TV channel. No special equipment is needed for the displays, and no inputs need to be changed to view the video. Simply change the channel to view the video. The program is available to all televisions as a digital TV program complete with channel name, description, and custom virtual channel number.

• Real-Time Hardware Encoder with Composite Video CVBS Input
• High-Quality MPEG-2 MP@ML (4:2:0) Encoding Compatible with Legacy Decoders
• Simple, purpose-built design, affordable price point
• Digital TV agile RF output, selectable to any standard VHF or UHF channel
• Adjustable RF output power level from 15-45 dBmV
• Supports worldwide QAM standards: J.83A, J.83B, & J.83C
• Simple-to-use Front Panel interface for easy configuration
• Simple and reliable method for distributing video over coax to a large number of displays
• Internal RF combiner for daisy-chain setup or channel injection