DVB-(T) modulator is our new product developed complying with the DVB-(T) standard. With its advanced modulating technology, this modulator can effectively make use of the ground spectrum resources and make it possible to provide reliable signals for fixed, mobile and portable devices. Compared with DVB-T, the channel capacity is increased by 30% under the similar carrier to noise ratio (CNR) threshold.
Moreover, this device can be upgraded and controlled through network system, which allows it to be widely used in setting up digital broadcasting network and provide good signals for scientific laboratory and DVB-(T) STB.
Principle chart
Features
* Fully complying with EN300 744 standard
* 4 ASI input ports
* 1 IP input over UDP protocol
* 10MHz input/loop out, 1PPS input/loop out
* DVB-(T) RF out in one device
* Supports single PLP
* Support MISO and SISO
* Support MFN net mode
* Supports non-linear and linear digital pre-distortion (DPD)
* Constant temperature crystal oscillator, as high as 0.1ppm stability
* Support PID bypass and passthrough
* Keyboard operation and LCD display
* Web Network management system
Specifications
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Input |
TS input over 4 ASI and 1 IP port (UDP) |
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10MHz reference clock input and loop out, BNC interface |
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1PPS input and loop out, BNC interface |
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Multiplexing
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Maximum PID Remapping |
128 input per channel |
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Function |
PID remapping (automatically or manually) |
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Accurate PCR adjusting |
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Generate PSI/SI table automatically |
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Modulation |
DVB-T |
Standard |
EN300 744 |
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FFT |
2K, 8K |
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Bandwidth |
5MHz, 6MHz, 7MHz, 8MHz |
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Constellation |
QPSK, 16QAM, 64QAM |
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Guard interval |
1/4, 1/8, 1/16, 1/32 |
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FEC |
1/2, 2/3, 3/4, 5/6, 7/8 |
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Net Mode |
MFN |
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RF Out |
Connector |
N Type, 50Ω Impedance |
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RF range |
30~999Mhz, 1hz stepping |
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Output level ATT |
-25~+3 dBm, 0.1db stepping |
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MER |
> 43db |
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Shoulder Level |
>56dB |
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System |
LCD display, keyboard and web Network management |
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Supporting software upgrading through network |
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General |
Demission (W*L*H) |
482mm×410mm×44mm |
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Temperature |
0~45℃(operation),-20~80℃(storage) |
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Power supply |
AC 220V±10%,50/60Hz |
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