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The DS2400Q is a multifunction instrument, which supports QAM constellation and analog signals for CATV networks. It is the ideal tool for initial network construction, for subscriber installations as well as for service and troubleshooting tasks. Its ruggedized design, which includes a shock protector, combined with icon display GUI and auto pass/fail specified limit feature provides increased efficiency and productivity for all types of technicians.
Other features such as return path & forward spectrum scan, 12 favorite tilt frequencies, AC line voltage test, HUM and DC voltage measurements, combined with complete data logging and a management software, makes this unit a versatile tool for cable installations.
MER, PRE & Post BER measurements and BER statistics feature allows quick testing of loose connections related to pixelating or slow DS internet data flow. This function can identify mismatches caused by open coaxial lines or corroded devices.
Foward Spectrum
ES & SES = CORR & UNCORR
MER with Pre & Post Ber
Return Path Spectrum (5-65)
Scan Test
TilT (Max 12 Freg.)
Frequency | |
Frequency Range | 5 MHz to 1000 MHz |
Frequency Accuracy | ± 50 ppm (@ 20°C ±5°C) |
Frequency Resolution | 10kHz |
Channel Type | |
Analog TV | NTSC |
Digital TV | QAM 16/32/64/128/256 with constellation diagram plus QPSK and COFDM |
FM Radio | Single frequency |
Digital Channel | |
Demodulation type | Standard ITU-T J.83 Annex A/B/C |
Support | QAM 16/32/64/128/256 |
Symbol rate | 1 MS/sec to 7 MS/sec |
Bandwidth | 280 kHz to 10 MHz |
MER (Modulation Error Ratio) | 39 dB (QAM) |
Accuracy | ±2.0 dB |
BER (Bit Error Rate) | 1E-3 to 1E-8 before and after R-S decoding (QAM) |
Power measurement type | QAM, QPSK and COFDM |
Digital Channel Average Power | |
Level range | -30 dBmV to +60 dBmV |
Constellation | |
Accuracy | ±2.0 dB from 10°C to 30°C and ±3.0 dB from -10°C to 40°C |
Resolution | 0.1 dB |
Display mode | QAM 64 and QAM 256 with zoom in and zoom out capability |
Analog Level Measurement | |
Range | -35 dBmV to +60 dBmV |
Accuracy | ±1.5 dB |
Resolution | 0.1 dB |
Input impedance | 75Ω (“F” type connector) |
HUM Modulation | |
Range | 2% to 5% |
Channel Scan | |
Number of Channels | 160 channels max |
Scanning Speed | 5 channels per second |
Scale | 1, 2, 5, 10 dB/div |
Zoom | 1X, 2X, 3X, 4X, 5X five levels of magnification or full channel scan |
Frequency Spectrum | |
Bandwidth | 2.5MHz, 6.25 MHz, 12.5 MHz, 25 MHz, 62.5 MHz and full span |
Scale | 1 dB, 2 dB, 5 dB and 10 dB/div |
Tilt Measurement | |
Number of Frequencies | maximum 12 with 0.1 dB of resolution |
Limit Test Parameters | |
Minimum/Maximum Video Level | 0 dBmV to + 30 dBmV |
Minimum/Maximum Δ V/A | 10 dB to 20 dB |
Minimum/Maximum Power Level | 10 dBmV to +30 dBmV |
Minimum MER | 33 dB (varies with modulations and systems) |
Max PRE/POST BER | 1.0 E-9 |
General Specification | |
Number of programs | Maximum 7 test parameters(Auto-Test) |
Line Voltage Measurement Range | 0 V to 100 V (AC/DC) with accuracy of ±2 V |
Storage Memory | 512K byte |
Battery | 11.1V 1.6AH Lithium battery (5 hours of operation) |
Charger | AC 100V to 240V 50-60Hz; charge time approximately 3 hours |
Adaptor | RS 232C (With Serial to USB data cable included) |
Dimensions | 218mm × 95mm × 49mm |
Weight | 700g |
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