|
|
The DSAM2000 Digital Service Analysis Meter combines all important analog and digital measurement functions with overall testing capabilities for high-speed data and voice services. The DSAM is rugged and lightweight making it an excellent field measurement unit for triple play services.
Specifications.
Analog-Level Measurement.
Signal types: CW, video, and audio (NTSC, PAL, and SECAM).
Frequency range: 4 to 1,000 MHz.
Accuracy: ±10 ppm at 25°C (77°F) 10 kHz tuning resolution.
Measurement range: -40 to +60 dBmV (typical).
Resolution: 0.1 dB.
Resolution bandwidth 280 kHz
Accuracy: ±1.5 dB typical at 25°C (77°F).
Carrier-to-Noise.
30 to 45 dB ±2 dB,
45 to 48 dB ±3 dB,
Input at >0 dBmV (up to 750 MHz),
Input at >6 dBmV (750 - 1,000 MHz).
Hum.
Accuracy:
Up to 5% hum: ±0.8%,
From 5 to 10%: ±1.0%.
Digital-Level Measurement.
Modulation types: QPSK, QAM (DVB, ACTS).
Range: -40 to +50 dBmV (typical).
Resolution: 0.1 dB.
Accuracy: ±2.0 dB typical at 25°C (77°F).
Downstream-QAM Demodulation.
Modulation type 64, 128, and 256 QAM, ITU-T J.83 (Annex A, B, or C selectable at time of order, factory installed hardware).
Input range (lock range) -15 to +50 dBmV total integrated power from:
57-1000 MHz (42 MHz Diplexer 6 MHz Channel spacing),
83-1000 MHz (65 MHz Diplexer 6 MHz Channel spacing),
108-1000 MHz (85 MHz Diplexer 6 MHz Channel spacing),
58-1000 MHz (42 MHz Diplexer 8 MHz Channel spacing),
84-1000 MHz (65 MHz Diplexer 8 MHz Channel spacing),
109-1000 MHz (85 MHz Diplexer 8 MHz Channel spacing),
Specifications are QAM signal center frequencies.
50 kHz tuning resolution.
DOCSIS Testing.
Support for operating in DOCSIS 1.0, 1.1, 2.0, or 3.0 modes.
Compliant with CableLabs® specifications for DOCSIS 1.0, 1.1, 2.0, and 3.0.
CableLabs-compliant BPI+ root-chained certificates pre-installed.
EuroCableLabs® certificates available.
Downstream Testing.
Support for channel bonding of 8 downstream carriers.
Throughput testing up to 304 Mbps (6 MHz carriers) and 400 Mbps (8 MHz carriers) Span: 10 or 50 MHz.
Upstream Testing.
Support for channel bonding of 4 upstream carriers.
Throughput testing up to 120 Mbps.
Upstream transmit range and diplexer crossover (DOCSIS modes only).
5 to 42 MHz, 42/88 MHz; min. downstream center frequency 91 MHz.
5 to 65 MHz 65/96 MHz; min. downstream center frequency 100 MHz.
5 to 85 MHz 85/111 MHz; min. downstream center frequency 111 MHz.
|