DSA1491 SAT/CATV/TV Signal Analyzer

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The DSA 1491 is an all format TV/RF signal analyzer providing today’s engineer a complete, portable tool for resolving digital video broadcast, transport, or reception challenges. Capable of testing and analyzing digital satellite signals, digital TV broadcast channels, cable QAM channels, and ASI MPEG streams, it is a true all-in-one analyzer. The DSA 1491 features a color touchscreen, which eliminates the need for multiple menus and pushbuttons, and achieves the ultimate in user friendliness. The large 9 inch screen provides unprecedented resolution so the user won’t miss problems when analyzing critical constellation and spectrum analyzer test screens. An HDMI interface permits viewing on a larger HDMI monitor or for interface to a multi-viewer system. The DSA 1491 provides powerful digital TV/RF analysis including MER, BER, PER, EVM, noise margin, constellation, and spectral analysis tests. A pass or fail quality indication simplifies interpretation. Additionally, the modulation type, FEC value, encryption type, MPEG services, video/audio program IDs and MPEG format descriptors are displayed providing advanced RF and MPEG signal analysis. The DSA 1491 provides a full arsenal of unique tests and control features to assist technicians in troubleshooting all satellite, cable and TV reception systems. Advanced features include an integrated spectrum analyzer, Auto Discovery, SatFinder, DiSEqC commands, dual LNB monitoring, SCR commands, BarScan, tilt, leakage, ingress and logger tests. The DSA 1491 comes equipped with a protective case, AC power adapter, USB cable, various RF adapters and SMART software.

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  • Nine inch high resolution touch screen user interface simplifies navigation and makes complex measurement tasks simple
  • Analyzes MPEG 2/4 SD and HD signals, showing services list, PIDs and decoding free-to-air video
  • H.264 and MPEG-2 video decoding; MPEG, AAC, HE-AAC, Dolby AC3 and E-AC3 (DD+) audio decoding
  • Descrambling capabilities with interface slot for conditional access module
  • Built-in ASI I/O and optional IP I/O interfaces for PID information, decoding and ETR290 analysis.  Outputs provide demodulated RF signal to external equipment
  • Up to 6 hours active battery life with automatic battery saver
  • Satellite tuning from 930 to 2250MHz with transponder navigation available for all worldwide satellites
  • Automatically discovers a channel’s modulation type, frequency, bandwidth and symbol rate eliminating guesswork
  • Digital satellite measurements including constellation, MER, EVM, BER, noise margin, level/power and spectrum analysis
  • Unique satellite dish pointing and alignment features ensure dish installation ease and accuracy
  • All DiSEqC commands supported – SCR with automatic search, USALS motor protocol
  • TV/CATV Tuner 4-1000 MHz analyzes both analog and digital broadcast and cable TV/RF signals
  • All units include QAM analysis and support one of the digital terrestrial standards – 8VSB, DVB-T/T2, or ISDB-T
  • Data Logger for automatic testing and data captures
  • SMART PC software for firmware updates, channel/transponder tuning plans and log file management



Advanced Video Delivery & Signal Transmission Technologies For Broadcast, Cable, Satellite, IPTV, & More Sencore is the leader in the development of high-quality signal transmission solutions for the broadcast, cable, satellite, IPTV, and professional audio/video markets. Their product line of top-rated equipment includes video delivery products, system monitoring and analysis solutions, and test and measurement equipment – all designed to support system interoperability and backed by best-in-class customer support. Sencore meets the rapidly changing needs of modern media by ensuring the efficient delivery of high-quality video from the source to the home. Sencore’s advanced video delivery and signal transmission technologies overcome the complexities to enable consistent, high-quality video distribution. Their solutions offer proven compatibility with a wide range of technologies including analog, digital, HD/SD, MPEG2, H.264, IP, 8VSB, QAM, and DVB-S/S2. Their comprehensive digital video system monitoring products ensure consistent, high-quality content delivery by providing continuous logging and monitoring of multiple signal types in both digital TV and IPTV networks. Broadcast engineers can remotely identify and resolve problems before they occur, respond to alerts and alarms, and quickly isolate the cause of outages with real-time system metrics and comparative analysis of critical measurements and system logs.