Mô tả
GD300DQ TV Signal Level Meter is designed to provide features which are most widely used
and favored by professionals in CATV industry at the least cost.
It can be used to measure accurately the analogue channels, digital channels efficiently and effectively with high accuracy rate.
Mainly it supports C/N, level, channel power measurement, voltmeter function, spectrum analysis and so on.
Overall, its functions are easy to use and can be used in a wide range of applications.
Feature:
1. Accurate QAM testing: digital average power, MER, BER
2. Support multiple DVB mode: 16QAM, 32AM, 64QAM, 128QAM, 256QAM
3. Single channel/Frequency simulated power levels testing
4. Video and audio signal power levels testing
5. V/A testing, show the frequency of video and audio, field intensity and power level difference simultaneously.
6. C/N testing, slope testing
7. QAM View includes BER, MER, and constellation
Specifications:
| Channel/Frequency Index | |
| Frequency Range | 5MHz~862MHz |
| Resolution | 10KHz |
| Measurement Bandwidth | 280KHz |
| Frequency Step | 50KHz |
| Channel Type | |
| Analog TV | TV |
| Digital TV | 16/32/64/128/256 QAM |
| Analog Power Level Testing | |
| Measuring Range | 25dBuV-120dBuV |
| Precision | ±1.5dB |
| Resolution | 0.1dB |
| Detection Method | Average value detection |
| Input Impedance | 75 |
| Digital Power Level Testing | |
| Measuring Range | 40dBuV-110dBuV |
| Precision | ±2.5dB |
| Voltage Testing | |
| Input Range | 0~100V (AC/DC) |
| Precision | ±2V |
| Resolution | 0.1V |
| Digital Channel | |
| Modulation Mode | Comply with DVB-C/ITU J83-A |
| QAM Mode | 16/32/64/128/256QAM |
| Symbol Rate | 1MS/S-7MS/S |
| Bandwidth | Set by user |
| MER | 19-35dB |
| BER | 1.0E-2~1.0E-8 |
| Carrier-Noise Ratio(C/N) | |
| Precision | ±2dB |
| Resolution | 0.1dB |
| Spectrum Analysis | |
| Frequency Range | 5MHz-862MHz |
| Power Levels Range | 20dBV-120dBV |
| Testing Bandwidth | 4.8, 20, 40MHz |
| Power Levels Range | 20dBV-120dBV |
| Slope Testing | |
| Number of Channels | 8 |
| Resolution | ±0.1dB |
General Specifications:
| Audio Output | Built-in speaker |
| Power Supply | Li-ion battery (3.7V, 2,000mAh, 5V AC/DC adaptor/charger |
| Operating Time | Average 6~8 hours (fully charged) |
| Charging Time | Less than 5 hours |
| Dimension | 223*110*47mm |
| Net Weight | 0.43kg |
| Working Temperature | -10℃~+50℃ |
| Storage Temperature | -20℃~+60℃ |
| Standard Accessories: | |
| carrying bag, AC/DC adapter, battery, software. | |
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