DS2500Q 1000MHz Digital TV QAM Spectrum Analyzer
DS2500Q 1000MHz Digital TV QAM Spectrum Analyzer

DS2500Q 1000MHz Digital TV QAM Spectrum Analyzer

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Product Overview

Description


Product Overview

DS2500Q 1000MHz Digital TV QAM Spectrum Analyzer

 

The DS2500Q's main functions include Enhanced Spectrum Analysis, Analog & Digital TV analysis, DOCSIS 3.0 analysis,Upstream Signal Generator, Ethernet testing, and Auto Test.

The revolutionary EVS function enables users to detect coherent distortions hiding under QAM carriers - without interrupting service. The DS2500Q supports Deviser's PC software toolkit, included with each unit, to make data transfer a snap.

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Special Function

 Figure 1: Spectrum Analysis

Spectrum analysis

Figure 2: Spectrograph

Spectrograph

Figure 3: DVB-C Channel Measurement

DVB-C Channel Measurement

Figure 4: Constellation Display

Constellation Display

Figure 5: BER and MER Statistical Analysis

BER and MER Statistical Analysis

 

Function & Benefits
  • High Speed Spectrum Analysis: 4~1000MHz
  • Integrated DOCSIS 3.0 Cable Modem
  • Integrated Upstream Signal Generator (no FEC)
  • Supports ITU- -T J.83 Annex A/B/C
  • Error Vector Spectrum: identifies interference signals under QAM carriers, with no break in service
  • Auto Test
Specifications

 

Downstream Spectrum Analysis
Frequency Range 4 MHz ~ 1000 MHz
Frequency Stability ± 1PPM (0 ~50 C)
Frequency Span 0 MHz ~ Full span
Frequency Step 1 kHz
Resolution Bandwidth filters (-3dB)30kHz,100kHz,300kHz,1MHz,3MHz
Video Bandwidth filters30Hz,100Hz,300Hz,1kHz,3kHz,10kHz,30kHz,100kHz,300kHz,1MHz,3MHz
Display Scale and Range 1,2,5,10,20 dB/Div;8 vertical divisions
Sweep Time 20ms ~ 25s
Input Level Range -60dBmV ~ +60dBmV
Dynamic Range 65dB (300kHz RBW)
Sensitivity -50dBmV (300kHz RBW,Pre-amplifier On)
Attenuation 0~40dB in 1dB steps
Pre-amplifierManual,18dB Gain
Accuracy of Measurements <±1.0dB @+25±5 C (typical value)
Measurement Detector Positive Peak, Negative Peak, Sample, Average, RMS
Reference Level -80dBmV ~ +70dBmV
Markers 2 vertical markers
Upstream Spectrum Analysis
Frequency Range 4~46 MHz (DOCSIS); 4~68 MHz (Euro DOCSIS 2.0);
4~88 MHz (Euro DOCSIS 3.0);4~120 MHz (DOCSIS 3.1);
4~210 MHz (DOCSIS 3.1)
Frequency Span 42/64/84/116/206 MHz, zero span or manual selections (max 200 MHz)
RBW 100kHz, 300kHz
VBW 30Hz,100Hz,300Hz,1kHz,3kHz,10kHz,30kHz,100kHz,300kHz,1MHz,3MHz
Display Scale and Range 1, 2, 5, 10, 20 dB/Div
Sweep Time 20ms ~ 25s
Input Level Range -60dBmV ~ +60dBmV
Attenuation Automatic, 0~40dB
Pre-amplifierManual,18dB Gain
Accuracy of Measurements <±1.0dB@+25±5 C (typical value)
Measurement Detector Positive Peak, Negative Peak, Sample, Average
Markers 2 vertical markers
Analog TV Measurement
Standards B/G, I, D/K, L/L’, M/N
Color Standards NTSC, PAL, SECAM
Level Measurement Range 40dBmV
Level Measurement Range -40dBmV ~ +60dBmV
Accuracy <±1.0dB @+25 ±5 C (S/N >30dB)
Level Resolution 0.1dB
Resolution Bandwidth 300kHz
CCN >51dB (Requires +10 dBmV carrier level)
CTB/CSO≥61dB with ±2.0dB Accuracy
HUM Measurement 1~20%: ±0.5% (1~5%): ±1.0% (5~20%)
Tilt Up to 16 channels
Pre-amplifierManual,18dB Gain
Attenuator Automatic, 40dB
Digital TV Measurement
Frequency Range 46 ~ 1050 MHz
Power Level Range -30dBmV ~ +50dBmV
Level Resolution 0.1dB
Accuracy < ±1.5dB@+25 ±5 C (C/N>20dB)
Modulation Type 16,32,64,128,256 QAM (J.83 Annex A and C);64,256 QAM (J.83 Annex B)
Interleave Depth (128, 1) ~ (128, 4) for J.83B; (12, 17) for J.83 A/C
Symbol Rate 4.0 MS/s ~ 7.0 MS/s
SNR >43dB; Accuracy: ±2.0dB
MER >41dB; Accuracy: ±2.0dB
BER 1E-3 ~ 1E-9
Constellation 16, 32, 64, 128, 256 QAM
Cable Modem Measurement
Supported Standards DOCSIS 1.1, 2.0, 3.0; EuroDOCSIS 1.0, 1.1, 2.0, 3.0
Downstream Demodulation 64, 256 QAM
Downstream Frequency Range >91 MHz (US); >100 MHz (EU)
Downstream Maximum Speed Up to 304 Mbps (6 MHz) and 400 Mbps (8 MHz)
Downstream Channel Bonding Up to 8 channels
Downstream Bandwidth 6MHz / 8MHz
Downstream Input Signal Level -15dBmV ~ +15dBmV
Upstream Frequency Range 5 ~ 42 MHz; 5 ~ 65 MHz; 5 ~ 85 MHz
Upstream Signal Bandwidth TDMA:200/400/800/1600/3200/6400kHz; S-CDMA:1600/3200/6400kHz
Upstream Output Signal Level QAM level range: +17 to +58dBmV; QPSK level range: +17 to +61dBmV
Upstream Channel Bonding Up to 4 channels
Upstream Maximum Speed 120 Mbps (4 channels bonding)
Upstream Signal Generator
Signal Modulation CW, QPSK, 16 QAM, 64 QAM, 256 QAM
Symbol Rate 1.28 MS/s, 2.56 MS/s, 5.12 MS/s
MER >38dB; Accuracy ±2dB
Frequency Range 5MHz~85MHz
Frequency Adjustable Steps 1MHz
Signal Level Range 8.0~58dBmV (CW, QPSK)
Level Adjustable Step 1dB
Others
RF Input 75Ω F-type connector
USB USB 1.1
Ethernet RJ45, 10/100T Ethernet
Display 4.3inch 480*272 TFT LCD
AC/DC Adapter 100~240 V/50~60Hz (AC); 12V/3A (DC)
Battery Li-ion, 7.4 V/7.8Ah
Charge Time Approx. 4 hours
Working Time > 6 Hours
Dimension (W×H×L) 245mm*130mm*60mm
Weight About 1.5kg (3.3 lbs)

DS2500Q-2.jpg

DS2500Q,Digital handheld catv/qam analyzer


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