DVB-T Modulator
Detailed Product Description
DVB-T Modulator
l DVB-T Modulator supports all DVB-T standard channel coding and modulation parameters, and support for both MFN and SFN modes. This system meets DVB-T and EN300744 standards. Since it supports FEC and RS correction and encoding, it is convenient to communicate with other analogue and digital signals, such as video conference, Internet and IP phone, which up to DVB Standard. This modulator supports HFC,MMDS or 8GHz broadband digital systems and bring modern digital services to customer in large area.
Features
l Complying DVB-T, ETSI/EN300744
l Support OFDM with:2k, 4k, 8K
l Support modulation with: QPSK, 16QAM, 64QAM
l FEC:1/2, 2/3, 3/4, 5/6, 7/8
l Protection interval:1/4, 1/8, 1/16, 1/32
l Support Hierarchy modulation: 16QAM, 64QAM, Alfa1.2.4
l Support SFN and MFN
l Base band pre-processing and non-linear RF compensation
l IF output at 36.15MHz with 90~115Bμv
l 2 ASI inputs, support ASI loop out
l Support remote control
l PID filtering and re-mapping
l PSI/SI information pick-up, parse and modification
l RJ-45 Ethernet interface introduces remote maintenance, supervision and software upgrade.
Data input | Socket | BNC, 75Ω | |
Interface Standard | Comply with EN50083 ASI interface standard | ||
Modulation level | Support non-level and level modulation | ||
Data format | Standard TS stream format,188 byte. | ||
RF output | Socket | F head, 75Ω | |
Central frequency | 350~870MHz | ||
Main signal level | ≥0dBm~16dBm | ||
Monitor signal level | -20±2dBm | ||
Attenuation | ≥36dB(agile), ≥40dB(Fix) | ||
MER | 36~38dB | ||
Bandwidth | 6MHz, 7MHz, 8MHz | ||
Signal coding and modulating | Convolutional coding rate | 1/2,2/3,3/4, 5/6,7/8 | |
Modulation mapping constellation | QPSK,16QAM, 64QAM | ||
Rating modulation parameters(alpha) | 1,2,4 | ||
Carrier | 2k 8k | ||
OFDM protect interval | 1/4, 1/8,1/16, 1/32 | ||
Bandwidth | 6MHz,7Mhz, 8MHz | ||
SFN | GPS external10MHz input | Input level | -5dBm~10dBm |
Input impedance | 75Ω | ||
Input port | BNC | ||
Circuit port | BNC | ||
GPS external 1pps input | Input level | TTL | |
Input impedance | 50Ω | ||
Input port | BNC | ||
Digital Predistortion | Nonlinear correction | Range Correction points | 16 |
Phase correction Points | 16 | ||
Calibration | Phase correction Points | 32 | |
Peak clipping | Clipping method | Slide window clippling and filtering | |
Control | Front panel control | Buttons, LCD | |
Local PC control | By RJ45 Ethernet port
| ||
Remote control | BY TCP/IP, RJ45 network control | ||
Network upgrade | By network to system upgrade. | ||
DVB-T Modulator
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Company Info
Guangzhou Rainbow Electronics Co., Ltd.
[China]
[Verified Member]
Online Postings: Products
Business Type:Manufacturer
City: Guangzhou
Province/State: Guangdong
Country/Region : China