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The DSAM-3500 Digital Service Activation Meter is a lightweight, durable, handheld meter for installation and troubleshooting. It features an intuitive graphical interface complete with an informative online help system. It provides traditional SLM test functions of analog video and audio levels and digital power levels. The video auto-test feature allows administrators to pre-program a test plan for multiple channels that a field technician can execute consistently with a single test selection. Additional features include a tilt screen and the Mini-scan feature; a simple one-key test that shows a summary of 1 to 12 channels. The DSAM-3500 has full DOCSIS® Service Verification and IP Performance tests with TruPacketTM. It also provides IP testing through the Ethernet jack. This series also includes a full downstream spectrum view as a convenient means of observing the carrier shape or checking for off-air forward ingress. Digital QAM carriers may be closely scrutinized with a constellation view, complete with zoom levels and display of level, MER/EVM and estimated pre and post FEC BER. Specifications. Frequency. Range: 4 to 1,000 MHz. Accuracy: ±10 ppm at 25° C (77° F). Tuning Resolution: Analog 10 kHz, Digital 50 kHz. Channel Bandwidth: Models ending in A, 8 MHz, Models ending in B, 6 MHz. Analog Level Measurement. Signal Types: CW, video and audio (NTSC, PAL, and SECAM). Range: -40 to +60 dBmV (typical). Resolution: 0.1 dB. Resolution Bandwidth: 280 kHz. Accuracy: ± 1.5 dB typical at 25° C (77° F). Digital Level Measurement. Modulation Types: QPR, QPSK, QAM (DVB/ACTS). Range: -40 to +50 dBmV (typical). Resolution: 0.1 dB. Resolution Bandwidth: 280 kHz. Accuracy: ± 2.0 dB typical at 25° C (77° F). Upstream Spectrum (Ingress Scan). Spans: Models ending in A, 4 to 65 MHz, Models ending in B, 4 to 45 MHz. Sweep Rate: Less than 2 seconds. Display Scaling and Range: 5 and 10 dB/division; 6 vertical divisions. Resolution Bandwidth: 280 kHz. Sensitivity: -40 to +60 dBmV (typical). Downstream Spectrum (forward scan). Frequency range: 4 to 1000 MHz. Sweep rate: Less than 2.5 seconds (display). Display scaling and range: 5 and 10 dB/division; 6 vertical divisions. Resolution bandwidth: 30 or 330 kHz. Span: 10 MHz or 50 MHz. Sensitivity: -35 to 60 dBmV (typical). Return QAM Generator. Signal Modulations: CW, 16 QAM, 64 QAM. Symbol Rates (MSPS): 1.28, 2.56, 3.84, 5.12. Frequency Range: 5-55 MHz US, 5-65 MHz EURO. Supported Levels: 8.0 - 58.0 dBmV.
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