DVB MODULATOR
RMI9040 ISDB-T/Tb Modulator
FEATURES 
- Standard of ISDB-T(ARIB STD-B31) & ISDB-Tb
- Providing 4*ASI input, and 1*Tuner input for Digital Pre-Distortion(DPD)
- 1*GPS 10MHz reference clock in and loop out configured
- Configured with 1*GPS 1PPS input and loop out
- Applicable to MFN & SFN
- Adoption of adaptive linear and non-linear Digital Pre-Distortion(DPD) technologies
- Layered transmission in modes of A, A+B, A+B+C
- TS input(one layer only) and ISDB BTS input(up to 3 layers) supported
- Frequency stability reaches to 0.1PPM
- Easy-operation by LCD and keyboard on front panel
INTRODUCTIONS
RMI9040 ISDB-T Modulator adopts ARIB STD-B31 standard, to meet terrestrial digital TV of Japan and other South American countries. It supports 4*ASI and 1*Tuner(for DPD) inputs, and additionally with 1*GPS 10MHz reference clock and 1*GPS 1PPS. The device can output 1*RF in 30~960MHz in good index after modulation processing. RMI9040 is also configured with advanced technology of Linear and Non-Linear Digital Pre-Distortion(DPD), with which Adjacent Channel Power Ratio(ACPR) is greatly improved. Supporting SFN and MFN modes, it is widely used in digital TV broadcasting and head-end systems of ISDB-T standard.
SPECIFICATIONS
| Input | ||
| TS Input | Number | 4*ASI, hot backup supported |
| Standard | EN 50083 ASI | |
| Mode | byte or burst | |
| MPEG Frame | 188/204 byte | |
| Connector | BNC interface, 75 Ω | |
| RF Input | Number | 1*RF |
| Frequency Level | -25 dBm ~ +5 dBm | |
| Mode | for Digital Pre-Distortion(DPD) | |
| Connector | BNC interface, 75 Ω | |
| GPS 10MHz clock Input | Number | 1*10MHz reference clock |
| Mode | for Single Frequency Network(SFN) | |
| Connector | BNC interface, 75 Ω | |
| GPS 1PPS Input | Number | 1*1PPS |
| Mode | for Single Frequency Network(SFN) | |
| Connector | BNC interface, 75 Ω | |
| Modulation | ||
| Standard | ARIB STD-B31 | |
| FFT | 2K, 4K, 8K | |
| Constellation | DQPSK, QPSK, 16QAM, 64QAM | |
| Guard Interval | 1/4, 1/8, 1/16, 1/32 | |
| Bandwidth | 6M, 7M, 8M | |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 | |
| Hierarchy Mode | A, A+B, A+B+C | |
| External Coding | RS(204, 188) | |
| Guard Intervals | Model 1: 0, 4 , 8, 16; Model 2: 0, 2, 4, 8; Model 3: 0, 1, 2, 4 |
|
| Digital Pre-Distortion(DPD)(optional) | ||
| Linear DPD | able to adjust non-flatness by over 10dB | |
| Non-Linear DPD | able to adjust ACPR by over 10dB | |
| Output | ||
| RF Output | Number | 1*RF |
| Frequency Range | 30~960 MHz, successionally adjustable, in 1Hz stepping | |
| Output Attenuation | -26 dB~+3 dB, in 0.1 dB stepping | |
| MER | ≥42 dB | |
| Signal Stability | ±0.1 dB | |
| Shoulder | ≥48 dB | |
| Spurious | ≥50 dB | |
| Connector Type | 50Ω, N interface | |
| 1*I0MHz Reference Clock Loop Out | ||
| 1*GPS 1PPS Loop out | ||
| Management | ||
| Remote Control | by SNMP | |
| Local Control | LCD and keyboard on front panel | |
| Upgrading | by network | |
| Language | English | |
| General | ||
| Voltage | 100~240V AC, 50/60Hz | |
| Consumption | 35 W | |
| Environment | 0~45°C (Operation), -20~80°C (Storage) | |
| Dimension (W*D*H) | 440*414*44 mm | |
| Net Weight | 4.9 KGS | |
DIAGRAM
REAR PANEL
