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Help CenterModulator,catv Modulator ,DTV Headend /digital Modulator /DVB-T Modulator COL5600
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Specifications
supports MFN (Multi-frequency network) & SFN (single frequency network).ASI,GPS,PPS input
Linear & nonlinear pre-correction
Outline
The COL5600 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 (Multi-frequency 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
ü Fully complying with DVB-T standard (EN300744)
ü Both SFN and MFN support
ü Transfer mode 2k, 4k, 8k optional
ü Hierarchy modulation Alpha1, 2 and 4 optional
ü Transfer bandwidth 6M, 7M and 8M optional
ü Supporting linear and non-linear correction
ü Excellent phase noise and MER performance, MER ≥40db
ü RF output range 110~860MHz, 1hz step
ü Two ASI inputs supporting hot backup
ü Constant temperature crystal oscillator, frequency stability is high up to 0.1ppm
ü Full-size front panel LCD display and keyboard, NMS management.
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) |
483mm×455mm×45mm |
Weight |
5kg |
|
Temperature |
0~45°C(operation),-20~80°C(storage) |
|
Power supply |
AC 110V/220V±10%,50/60Hz |
|
Consumption |
28.6W |
|
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