Our Applications & Solutions

4-2250 MHz RF + MPEG Analyzer


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.


  • 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

Product Files

Our Solutions

System Solutions

To grow your business – and your revenue – operators want the Knowledge, Assets and impartial technical guidance only a true Partner can deliver! From HFC and DOCSIS to x-PHYTM; from FTTx – GPON and RFoG to IPTV; from Linear Video to Multi-Screen; MHz best-in-class Technologies and Client Services will meet your goals while exceeding your expectations…

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Client Services

Too much on your plate?
Not enough hours in your day?

The next time you need, Linear Video or Multi-Screen, MPEG, DOCSIS or x-PHYTM, IP or RF resources to support the operation of Multi-Vendor, Multi-Technology products deployed in your HFC or FTTx network, MHz can help!

Choose from a customized package of remote “Fractional Engineering” hours you can use over an extended period of time; or our on-site Integration and Activation Services.

Both can offset your temporary work-load.

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