mpeg4 dvb-t modulator

mpeg4 dvb-t modulator

USD $1 - $4,000 /Set

Min.Order:1 Set

Supply Ability:
250 Set / Sets per Month
Port:
CHENGDU
Payment Terms:
Credit Card

Quick Details View All >

Place of Origin:
Sichuan, China
Brand Name:
DEXIN
Model Number:
NDS3542

Dexin Digital Technology Corp. Ltd. (Chengdu)

Business Type: Manufacturer,Trading Company
Chengdu Sichuan China
Main Products: Encoder ModulatorOnly Export Trade ,EncoderOnly Export Trade ,ModulatorOnly Export Trade ,IRDOnly Export Trade ,Multiplexer/ScramblerOnly Export Trade

Product Details

Specifications

2 channel A/ in, 1*ASI in
MPEG2 HD/MPEG4 HD video encoding
2*RF DVB-T out (2 carriers combined output)

NDS3542 MPEG2 HD/MPEG4 HD Encoder Modulator 

 

Product overview

 

 

NDS3542 is DEXIN’s newly developed Encoder & Modulator which integrates MPEG2 HD/MPEG4 HD video encoding and DVB-T (DVB-C/ISDB-T/ATSC Optional) modulation to convert HD A/V signals to DVB-T RF out in the frequency range of 30~960MHz. It has equipped with 2 channels of HDMI input, 1 ASI input, and output with 2 ASI ports, 1 UDP IP port, and 1 RF port with dual DVB-T carriers.

 

The signals source could be from satellite receivers, closed-circuit television cameras, Blue-ray players, and antenna etc. Its output signal is to be received by DVB-T standard TV sets, DVB-T STBs and etc.

The device can be wildly used in public places such as metro, market hall, theatre, hotel, resort, etc for advertising. It also can be used for monitoring, training and educating in company, schools, campuses, hospital… besides that it’s a good choice for bars to offer HD sports channels, for VIP entertainment channels, and more.

 

Key Features


 Up to 1920*1080@50I/60I supported

 MPEG2 HD/MPEG4 HD video encoding

 2* HDMI in (2 for backup), 1*ASI in

 2*RF DVB-T out (2 carriers combined output), double output bandwidth

 Simultaneously encoding each channel more than 18Mbps

 LCN support (Logical Channel Number)

 Excellent modulation quality MER≥42dB

 RF Frequency range 30Mhz~960Mhz

 LCD display, Remote control and firmware

 Updates via web/Ethernet

 Lowest cost per channel --- breakthrough price


 

mpeg4 dvb-t modulator

 

 


Principle chart

mpeg4 dvb-t modulator

 

Specification

 

Encoding section

Video

Encoding

MPEG2 HD/MPEG4 HD

Input

HDMI*2 (2 for backup)

Resolution

1920*1080_60i, 1920*1080_50i, 1280*720_60p, 1280*720_50P

Audio

encoding

MPEG1 Layer II, MPEG2-AAC, MPEG4-AAC

Sample rate

48KHz

Bit rate

64kbps, 96kbps,128kbps, 192kbps, 256kbps, 320kbps

 

DVB-T modulator section

Standard

EN300744

FFT mode

2K, 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

MER

≥42dB

RF frequency

30~960MHz, 1KHz step

RF out

2*RF COFDM DVB-T out (2 carriers combined output);

Double output bandwidth

RF output level

-30~ -10dbm (81~97 dbµV), 0.1db step

 

System

Local interface

LCD + control buttons

Remote management

Web NMS

output

ASI out (BNC type); IP out (RJ45, 100M)

NMS interface

RJ45, 100M

Language

English

 

General

Power supply

AC 100V~240V

Dimensions

482*300*44mm

Weight

4.5 kgs

Operation temperature

0~45°C

 

 

Why do we need 2 x DVB-T carrier output in one device?

 

 

Firstly, it is to guarantee the sound picture quality of HD programs.

 

As we all know, to guarantee the picture quality of 1920x1080@50I/60I resolution HD program, the video bit-rate may exceed 15Mbps, even up to 16-18Mbps. However, the maximum possible bit-rate output for single DVB-T carrier is only around 30Mbps.

 

18Mbps x2 =36Mbps > 30Mbps.

 

It means the single DVB-T carrier simply can't carry the 2 channels 1080i HD program if the average bit-rate exceeds 15Mbps.

 

That's why we design 2*DVB-T carrier modulation board which double the maximum possible bit-rate bandwidth up to 60Mbps, which rightly makes it reliably carry 2 channel HD programs output simultaneously.

 

Below brief chart will help to more clearly illustrate the working principle.

 

 

mpeg4 dvb-t modulator

Secondly, it is cost-saving.

Its high integration allows users to transmit more programs with fewer devices. It undoubtedly saves the cost for you and me.

Contact Supplier

Mr. daisy Lee Oversea Sales manage Chat Now
Telephone
86-28-85558928 85550524
Mobile
18728456088
Fax
86-28-85585255
Address
No.10 & No.12, Wuxing Fourth Road, Wuhou District, Chengdu, China Chengdu,Sichuan

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