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Help CenterCATV Head End Qam Modulator, 8 in 1 Encoder Qam Modulator
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Specifications
8 in 1 encoder qam modulator1. 8 CVBS in MPEG2 SD encoding
2. DVB-C QAM modulation out, Ip out
3. CATV head end,
NDS3548 8 in 1 encoder qam modulator
Key Features
- 8* CVBS in, 1*ASI in
- MPEG2 Video encoding
- Support PAL, NTSC SD signal
- MPTS or 8xSPTS output over UDP
- DVB-C/QAM RF test&out
- Support all DVB-C QAM modes(J.83A/B/C)
- LCN support (Logical Channel Number)
- Excellent modulation quality MER≥42dB
- RF Frequency range 30Mhz~960Mhz
- LCD display, Remote control and firmware
- Web NMS Management
- Updates via web/Ethernet
- Lowest cost per channel --- breakthrough price
Product overview
NDS3548 is a MPEG2 Encoding and DVB-C modulation integrated device to convert 8 CVBS A/V signals and one ASI input to DVB-C RF out in the frequency range of 30~960MHz. It is equipped with 8 channels CVBS input, 1 ASI input and output with 2 ASI ports, 1 UDP IP port, 1 DVB-C RF test and 1 DVB-C RF out port.
The signals source could be from satellite receivers, closed-circuit television cameras and Blue-ray players etc. its output signal is to be received by a DVB-C standard TV, DVB-C STB.
The device can be used in public place such as metro, market hall, theatre, hotels, resorts, etc for advertising. It also can be used for monitoring, training and educating in company, schools, campuses, hospital.
technical Specification
Encoding section
Video
Encoding |
MPEG 2 |
Input |
8*CVBS, 1*ASI |
Resolution |
PAL: 720×576_50i, 640×576_50i, 352×288_50i, 320×288_50i, 176×288_50i, 176×144_50i NTSC: 720×480_59.94i, 544×480_59.94i, 352×240_59.94i, 320×240_59.94i, 176×240_59.94i, 160×120_59.94i |
Audio
encoding |
MPEG1 Layer II, AC3, LC-AAC |
Sample rate |
48KHz |
Bit rate |
64kbps, 96kbps, 112kbps, 128kbps, 160kbps, 192kbps, 224kbps, 256kbps, 320kbps, 384kbps |
DVB-C modulator section
Standard |
J.83A, J.83B, J.83C |
MER |
≥42dB |
RF frequency |
30~960MHz, 1KHz step |
RF output level |
-30~ -10dbm(81~97 dbµV), 0.1db step |
J.83A |
|
Constellation |
16/32/64/128/256QAM |
Symbol rate |
5.000~9.000Msps adjustable |
bandwidth |
8M |
J.83B |
|
Constellation |
64QAM, 256QAM |
bandwidth |
6M |
J.83C |
|
Constellation |
64QAM, 256QAM |
Bandwidth |
6M |
Interface
Local interface |
LCD + control buttons |
Remote Management |
Web NMS |
Output |
ASI Out(BNC Type) MPTS or 8 SPTS out |
NMS interface |
RJ45, 100M |
Language |
English |
General info
Power supply |
AC 100V~240V |
Dimensions |
482mm×410mm×44mm |
Weight |
4.5 kgs |
Operation Temperature |
0~45°C |
Send Inquiry to This Supplier
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