Gold Member Since 2013
Audited Supplier
Catcast Technology Co., Ltd. (Chengdu)

HDMI Modulator, RF Modulator, MPEG2 Modulator manufacturer / supplier in China, offering 4* DVB-C RF out MPEG4 HDMI/Sdi Input and RF Asi Output 1080P HD Encoder Modulator, 1080P MPEG4/MPEG2 Encoder Modulator with 4 HDMI/SDI Input and Asi RF Output, 8 Channels AV Modulator with DVB-T RF out and so on.

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Supplier Homepage Product Encoder Modulator 4* DVB-C RF out MPEG4 HDMI/Sdi Input and RF Asi Output 1080P HD Encoder Modulator

4* DVB-C RF out MPEG4 HDMI/Sdi Input and RF Asi Output 1080P HD Encoder Modulator

FOB Price: US $1-2,400 / set
Min. Order: 1 set
Min. Order FOB Price
1 set US $1-2,400/ set
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Port: Chengdu, China
Production Capacity: 500 Sets/Month
Payment Terms: T/T, D/P, Western Union, Money Gram

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Basic Info
  • Model NO.: HPS852A
  • Function: Signal Transmission Equipment
  • Condition: New
  • Transport Package: Carton
  • Origin: Chengdu, China
  • Type: CATV(Cable Television)Equipment
  • Certification: CE, ISO, RoHS, SGS,FCC
  • Trademark: CatCast
  • Specification: 1U
Product Description
4* DVB-C RF out  MPEG4 HDMI/SDI input and RF output 1080p HD encoder modulator

HPS852A series products are new breakthrough all-in-one devices which integrate encoding (MPEG-2 HD/SD, MPEG-4/AVC H.264 HD/SD) and modulating to convert V/A signals into DVB-C RF output. It has equipped with 4 HDMI (4 SDI optional) channels input and 1 ASI input and output with 2 ASI ports and 1 UDP IP (4*SPTS) port.
Delay problem has been greatly reduced to achieve an extremely low value from the encoding progress to the decoding terminals. It adopts inner drawer-type structural design which greatly facilitates the change of encoding modules (HDMI/SDI /…) as needed. The signals source could be from satellite receivers, closed-circuit television cameras, Blue-ray players, and antenna etc. Its output signals are to be received by DVB-C TVs or STBs and etc.
 Key Features
* MPEG2 & MPEG4 AVC/H.264 HD/SD encoding
*Up to 1920*1080@50P/60P supported (MPEG4 AVC/H.264)
*Up to 1920*1080@50I/60I supported (MPEG2 HD)
* 4* HDMI/SDI input
*1*ASI input for re-mux; 1*RF input for mix
*Simultaneously encoding each channel more than 10Mbps
*4* DVB-C RF out (4 carriers combined output)
*Support 4 * SPTS output
* Extremely low delay (optional)
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
Principle Chart
 4* DVB-C RF out MPEG4 HDMI/Sdi Input and RF Asi Output 1080P HD Encoder Modulator
Encoding section
EncodingMPEG2, MPEG4 AVC/H.264
InputHDMI*4 (or SDI*4)
Resolution1920*1080_60P, 1920*1080_50P, (-for MPEG4/H.264 only)
1920*1080_60i, 1920*1080_50i,
1280*720_60p, 1280*720_50P
720*480_60i, 720*576_50i
encodingMPEG1 Layer II, MPEG2-AAC, MPEG4-AAC
Sample rate48KHz
Bit rate64kbps, 96kbps,128kbps, 192kbps, 256kbps, 320kbps
DVB-C Modulator Section
StandardJ.83A , J.83B, J.83C
RF frequency30~960MHz, 1KHz step
RF output level-30~ -10dbm(81~97 dbµV), 0.1db step
Symbol rate5.000~9.000Msps adjustable
Constellation64QAM/ 256QAM
Constellation64QAM/ 256QAM
Local interfaceLCD + control buttons
Remote managementWeb NMS
outputASI out (BNC type); 4*SPTS out (RJ45, 100M
NMS interfaceRJ45, 100M
Power supplyAC 100V~240V
Weight4.5 kgs
Operation temperature0~45ºC
Why do we need 4 x DVB-C 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 10Mbps and even reach up to 15Mbps. However,
when the modulating constellation is 64QAM, the maximum possible bit-rate output for single DVB-C carrier is only around 20Mbps.
15Mbps x4 =60Mbps > 20Mbps.
It means the single DVB-C carrier simply can't carry the 4 channels 1080i HD program if the average bit-rate exceeds 10Mbps.
That's why we design 4*DVB-C carrier modulation board which quadruples the maximum possible bit-rate bandwidth up to 80Mbps and above when 64QAM constellation is used. This rightly makes it reliably carry 4 channels MPEG2 HD programs output simultaneously.
Below brief chart will help to more clearly illustrate the working principle.
 4* DVB-C RF out MPEG4 HDMI/Sdi Input and RF Asi Output 1080P HD Encoder 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.
4* DVB-C RF out MPEG4 HDMI/Sdi Input and RF Asi Output 1080P HD Encoder Modulator
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