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NDS2401G DVB-T Modulator
The NDS2401G DVB-T Modulator is a high performance modulator developed according to the DVB-T (EN300744) standard. It adopts advanced framing structure, channel encoding and modulation technology. It supports both MFN (Multi-frequency network) and SFN (single frequency network). In order to improve the output performance of the transmitter, this DVB-T modulator can support nonlinear digital pre-distortion. Moreover, this device facilitates the local and remote control with web software.
Outline
The NDS2401G DVB-T Modulator is a high performance modulator developed according to the DVB-T (EN300744) standard. It adopts advanced framing structure, channel encoding and modulation technology. It supports both MFN (Multi-frequency network) and SFN (single frequency network). In order to improve the output performance of the transmitter, this DVB-T modulator can support nonlinear digital pre-distortion. Moreover, this device facilitates the local and remote control with web software.
Features
1. Fully complying with DVB-T standard (EN300744)
2. 2 ASI in & 2 IP (DATA1& DATA2) input for hot backup input, 1 RF in, 10MHz reference clock and 1PPS in
3. Support both SFN and MFN
4. Transmission mode: 2k, 8k
5. Transmission bandwidth 5M, 6M, 7M and 8M
6. Excellent phase noise and MER performance, MER≥42db
7. Support spectrum invert
8. RF output range 50~1000MHz, 1Hz step
9. Supports adaptive non-linear digital pre-distortion (DPD)
10. Constant temperature crystal oscillator, frequency stability is high up to 0.1ppm
11. Full-size front panel LCD display, keyboard and web management
Specifications
Input | 2channels ASI input& 2 IP input, can only select 1 input as source, but all 4 inputs ports are hot backup IP with UDP/RTP protocol, with Multicast/Unicast IP with PCR adjust feature also | |
GPS 10Mhz reference clock input, BNC port | ||
GPS 1PPS input, BNC port | ||
1 RF input for DPD -25dbm~+5dbm | ||
Modulation | Standard | EN300 744 |
FFT | 2K, 8K | |
Bandwidth | 5M, 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 | |
RF output | Interface | N type, 50Ω impedance |
RF range | 50~1000MHz，1hz step | |
RF output level | -15dbm~+5dbm, 0.1db step | |
RF level offset | -3dbm~+3dbm, 0.1db step | |
MER | ≥ 42db | |
ASI output | 2 ASI ports output for the passthrough of the input ASI Signal, both ASI out are the same | |
Non-linear DPD | over 10db ACPR improvement (normally) | |
System | LCD display & keyboard operation, web management | |
Software upgrading through NMS port | ||
General | Demission (W*L*H) | 440mm×414mm×44.5mm |
Weight | 4.9kg | |
Temperature | 0~45℃(operation), -20~80℃(storage) | |
Power Supply | AC 110V±10%, 50/60Hz or AC 220V±10%, 50/60Hz | |
Power Consumption | To be tested | |
Principle Chart
