DTA-112 – DekTec ATSC / QAM / DVB-T Modulator with VHF/UHF Upconverter for PCI Bus. Cost-effective PCI based modulator with support for ATSC, DVB-C, QAM-A/B/C and DVB-T. All-channel upconverter 47 .. 862MHz covering entire VHF and UHF band. Supports all constellations and modulation modes for each supported standard. Bi-directional DVB-ASI port
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Catalog Index » HEADEND DIGITAL VIDEO PROCESSING » QAM Modulators & Multiplexers ARRIS APEX1000. The ARRIS APEX1000, ARRIS’ next-generation all-purpose edge QAM, provides flexibility, high availability, high QAM density, MediaCipher encryption, and low power in an extremely cost-effective 1 RU platform. The is a complete upconverter designed for CDMA/FM cellular applications. The IC contains a double-balanced mixer stage and an output buffer amplifier stage. This device may also be used to directly BPSK modulate a carrier. The mixer is a Gilbert cell with emitter degeneration resistors to provide high IP3. QAM Modulator/Upconverter Description The Quantum RF™ modulator/upconverter is the next step in building compact solutions for modulation in the digital headend. The module handles the complete QAM modulation process, from ASI input to RF output. Space is used to the full extent, 8 modulators can be housed in a 4 RU chassis.
QAM RF Modulator (4QRM) has unique low-power characteristics and serves as a highly dense upconverter with support of single, dual, and quad channel operation. The 4QRM’s sophisticated design leverages an on-board microprocessor to control critical parameters, monitor operations, and provide status information on operating temperature,