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Help CenterDVB-T Modulator Hdmi to rf Modulator Digital Headend
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Specifications
DVB-T (EN300744) standard2 AIS input ports, one GPS
support linear and nonlinear pre-correction
Outline
The DVB-T Modulator is a high performance modulator developed according to DVB-T (EN300744) standard.
It adopts advanced framing structure, channel coding and modulation technology. And it also supports both
MFN (Multifrequency network) and SFN (single frequency network). It has 2 AIS input ports, one GPS.10MHZ
input port and one 1 PPS input port. In order to improve the output performance of the transmitter, the DVB-T
modulator can simultaneously support linear and nonlinear pre-correction. This device supports local and
remote control through NMS software.
Features
1 Full complying with ATSC A/53 standard
2 Constellation mapping:8-VSB
3 EN50083 ASI and SMPTE 310M interface standard
4 Dual channel DVB-ASI and SMPTE-310M input, automatic switch-over and hot backup
5 RF range: 40MHz~860MHz,1Hz stepping
6 Front panel and IP long distance control
7 RS coding, data interlacing, Trellis coding
8 Channel bandwidth: 6MHz
9 Excellent RF output performance: EVM,MER,SNR,shoulder level and so on
10 Remote maintenance, monitoring and software upgrading
11 Keyboard operation and LCD display
12 Network management software
Specification
Input |
2 channels ASI input, hot backup, BNC port |
|
GPS 10Mhz reference clock input, BNC port | ||
GPS 1PPS input, BNC port | ||
Modulation |
standard |
EN304 744 |
FFT |
2K,4K,8K |
|
bandwidth |
6M,7M,8M |
|
constellation |
QPSK,16QAM,64QAM |
|
Guard interval |
1/4,1/8,1/16,1/32 |
|
FEC |
1/2,2/3,3/4,5/6,7/8 |
|
Hierarchy modulation |
Alpha=1,2,4 |
|
RF output |
ASI loop out |
2channels ASI loop out, BNC port |
interface |
N type, 50Ω impedance |
|
RF range |
110~860MHz,1hz step |
|
ATT |
-16dbm~0dbm,0.5db step |
|
MER |
≥ 40db |
|
Linear pre-correction |
Correction points |
16 |
Non-linear pre-correction |
Correction points |
256 |
System |
Full-size front panel LCD display and keyboard, NMS management |
|
Software upgrading | ||
General |
Demission (W*L*H) |
482mm×455mm×44.5mm |
Weight |
4.9kg |
|
Temperature |
0~45°C(operation),-20~80°C(storage) |
|
Power supply |
AC 110V±10%,50/60Hz or AC 220V±10%,50/60Hz |
|
Consumption |
28.6W |
|
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