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1019-00-1190 Datasheet(PDF) 4 Page - JDS Uniphase Corporation |
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1019-00-1190 Datasheet(HTML) 4 Page - JDS Uniphase Corporation |
4 / 8 page Hum measurement: in-service Measuring hum on a channel (non-scrambled) is as simple as pressing the “HUM” key and since the instrument is battery powered, the measurement is independent of ground loops, therefore isolated from the line (mains). Hum reveals itself as either single (60 Hz) or double (120 Hz) horizontal bars across the video screen. The level of either can be measured. Modulation measurement Includes NTSC, PAL, and SECAM formats. Demodulation of the audio is done for both AM and FM. FM is used to hear audio distortion on the FM radio channels or the sound of the TV program. AM is used to recognize short-wave interference signals in the reverse band. Extensive automated test capability Automated tests can be scheduled to perform either 24-hour FCC compliance tests, or initiated immediately to log performance at individual nodes, amplifiers or other testpoints. A wide range of tests can be performed automatically, including signal levels, C/N, hum and depth of modulation. The operator desig- nates which tests to perform on which channels. Because these tests are non- intrusive, it is easy to test all parameters on all channels at any time. After a test is performed, the results can be displayed on the SDA screen. A pass/fail indication can be set on a variety of limits for FCC/CENELEC or other government standards, or to system preferences. Data taken during any auto- mated test, or sequence of automated tests, can be viewed immediately with a pass/fail indication for each of the limits. Specific stored measurement results may be viewed on demand. Automated test results can be printed directly to a serial printer or uploaded to a PC using StealthWare to store and include in custom reports. Data analysis with StealthWare Any stored SDA measurement information can be uploaded to a PC using StealthWare, a Microsoft® Windows®-based data management package. Stored sweep, scan, or spectrum screens can be viewed on the PC and analyzed with marker movement and readout information in just the same way as on the actual instrument. A sweep graph overlay function enables comparison of multiple RF response variations over time. StealthWare also allows the operator to build channel plans and edit site locations, which can be downloaded to multiple SDA instruments. Additionally, channel plans can be uploaded to the PC, modified in StealthWare, and then downloaded back to the SDA instrument. Upgrading the SDA-4040D to the SDA-5000 The JDSU upgrade program is designed to protect customers’ investment in test equipment. As system requirements change, the SDA-4040D can be upgraded to the SDA-5000 for forward and reverse sweep capabilities at any of JDSU worldwide service centers, and model SAM-4040D owners can upgrade to the SDA-4040D with an in-the-field firmware change only. 4 SDA-4040D STEALTH DIGITAL ANALYZER The Navigator user interface, common on all JDSU SDA meters The single-channel level display shows both video and audio levels (either single or dual sound/NICAM) and the difference between the two Digital channel average power measurements can be made using the digiCheck™ feature Tilt mode performs automatic tilt calculations between any two of nine designated carriers |
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