DS2400Q là máy đo sử dụng chủ yếu cho xây dựng mạng lưới và dự án bảo trì truyền hình cáp hỗ trợ QAM và tín hiệu analog .
DS2400Q có giao diện thân thiện và hoạt động đơn giản làm việc và giải quyết các vấn đề nhanh hơn rất nhiều.
Hình ảnh thực tế DS24000Q :
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 |