DTMB-T Modulator
Main Features
Completely support GB20600-2006;
Support both SFN and MFN;
Support both single carrier and multicarrier;
Support linear and nonlinear pre-correction;
Excellent phase noise and MER performance, MER≥42db;
RF output range: 36~960Mhz, 1hz stepping;
4 ASI inputs, supporting hot-standby;
Adopt OCXO, frequency stability is up to 0.1ppm;
LCD & button o peration;
Support NMS.
Technical Specification
Input | 4 ASI inputs, support hot-standby, BNC | |
GPS 10Mhz reference Clock input, BNC | ||
GPS 1PPS input, BNC | ||
Modulation | Standard | GB20600-2006 |
FFT | 1,3780 | |
Constellation | 4QAM-NR, 4QAM, 16QAM, 32QAM, 64QAM | |
Frame Format | 420, 595, 945 | |
FEC | 0.4, 0.6, 0.8 | |
Interleaving Depth | 240, 720 | |
RF Output | Connector | N-connector, impedance 50Ω |
36~960Mhz, 1hz stepping | ||
Output Level | -16dbm~+3dbm, 0.1db stepping | |
MER | ≥ 42db | |
Linear Pre-correction | Correction Point | 16 |
Nonlinear Pre-correction | Correction Point | 512 |
System | Support LCD & Button operation, NMS, and Chinese-English interfaces | |
Software can be upgraded via network | ||
General | Dimension(Width x Length x Height) | ×× |
Weight | ||
Temperature | 0~(Working), -20~(Storing) | |
Power Supply | AC 110V±10%, 50/60Hz or AC 220V±10%, 50/60Hz | |
Power Consumption | 28.6W | |
Overview
Frequency range of this modulator is 36~960Mhz; with excellent RF output performance and frequency stability; support local and remote parameters configuration. It can be widely used in DMB-T digital broadcasting network construction and STB production & test.