1 - 8 HDMI Digital RF Modulator CC (Closed Captioning)

H-HDCOAX-4
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Description Features Drawings Video Model Selection Specification Q&A Documents Support
4 HDMI model description
Thor 4 HDMI Digital RF Modulator CC is an all-in-one device integrating MPEG2 encoding and modulating to convert audio video signals into DVB-C T ATSC ISDB-T RF out.
Description

H-HDCOAX-8 Supports 8 HDMI inputs and its modular design (maximum 8 HDMI inputs) and flexible configuration makes it scalable and very reliable while providing high performance.

The signal source could be from any STB, satellite receiver, closed-circuit television cameras and antenna etc. Its output signal is designed to work with any TV or STB. Because it comes standard with every RF modulation standard builtin, this device can work anywhere in the world in a plug and play format. 

This unit is similar to our popular line H-1,2,4 HDMI-QAM-IPLL product line, but it has some differences .It is less expensive unit, each program is modulated on its own frequency , CATV RF ouput only, no IPTV output 

 

  H-HDCOAX-XX

H-HDMI-QAM-IPLL  OR

H-4ADHD-QAM-IPLL

Number of Inputs 1,2,4,8    1,2,4
Number of CATV frequencies (carriers) 1,2,4,8 - Each video has its own channel 4
Modulation QAM, ATSC, DVB-T, ISDB-T in the same unit -pre-loaded & switchable                        QAM, ATSC, DVB-T, ISDB-T Firmware dependent
Can modulate multiple programs on the same frequency - carrier           

No,

each program needs to be modulated on a separate frequency 

Yes,

multiple programs can be modulated on the same frequency, for example 2.1, 2.2, 2.3, 2.4 

Encoding method MPEG2 only MPEG2 or H.264 - selectable
Dolby Audio Encoding Yes Yes
NMS YES YES
Front Panel Control YES YES
IPTV Output NO YES

 

 

Features
  • 1-8 HDMI channels Inputs (model dependent)
  • HDCP compliant works with any HDMI source like DVD Player or Cable, Satellite STB up to 1080p/60 resolution
  • MPEG2 Video Encoding
  • 1080p/60, 1080i, 720p, 576i, 480i Video Resolution
  • Low Latency (50~100ms)
  • MPEG layer 2, AAC, and DD AC3 Audio Encoding
  • CC (Closed Caption), EIA 608
  • LCN
  • DVB-C DIGITAL QAM, ATSC, DVB-T, ISDB-T RF in one device, Modulation dynamic switching
  • Control Via Web-Based NMS, and easy updates Via Web
  • LCD Display and front panel control
Drawings
Video
1, 2, 4, 8 HDMI Digital RF Modulator with CC-Closed Captioning QAM, ATSC, DVB-T, ISDB-T up to 1080p
Thor Up to 8 HDMI Digital RF Modulator CC is an all-in-one device integrating MPEG2 encoding and modulating to convert audio video signals into DVB-C T ATSC ISDB-T RF out. Supports HDCP, so it could be used with any DVD player or Set-top box or Sattelite tuner The unit generates separate CATV RF NONadjacent frequencies, it could be used in any country. Lowest price per HDMI channel on the Market, Technical support at no cost, pre-setup available https://thorbroadcast.com/product/1-8-hdmi-digital-rf-modulator-cc-closed-captioning.html
Model Selection
  • H-HDCOAX-1
  • H-HDCOAX-4
  • H-HDCOAX-8
Specification

HDMI Encoding Section

Input

Interface

  • H-HDCOAX-1  - 1HDMI + 1CVBS for CC
  • H-HDCOAX-4 -  4HDMI + 4CVBS for CC
  • H-HDCOAX-8 -  8HDMI + 8CVBS for CC

Video

Encoding

MPEG2

Input

Output

[email protected]/60i

[email protected]

[email protected]

[email protected]

[email protected]/59.94/60p

[email protected]/30p

[email protected]

[email protected]

[email protected]/60i

[email protected]

[email protected]

[email protected]

[email protected]/60p

[email protected]

Bit-rate

2.000~20.000 Mbps

Rate Control

VBR

Aspect Ratio

16 :9

Audio

Encoding

MPEGI layer2, AAC, AC3

Sample rate

48KHz

 

Bit rate

MPEG1 layer2 (192kbps)

 

AAC (VBR)

 

AC3 (128kbps)

DVB-C Modulator Section

Standard

J.83A (DVB-C), J.83B

MER

≥35dB

RF frequency

100-1000MHz, 1KHz step

RF output level

-63~ -16dBm (44~91 dBµV), 1dB step

Symbol rate

3.000~7.000Msps adjustable

 

J.83A

J.83B

Constellation

16/32/64/128/256QAM

64/ 256QAM

Bandwidth

8M

6M

DVB-T Modulator Section

Standard

DVB-T COFDM

Bandwidth

2M, 3M, 4M, 5M, 6M, 7M, 8M

Constellation

QPSK, 16QAM, 64QAM

Code rate

1/2, 2/3, 3/4, 5/6, 7/8

Guard Interval

1/32, 1/16, 1/8, 1/4

Transmission Mode:

2K, 8K

MER

≥35dB

RF frequency

100-1000MHz, 1KHz step

RF output level

-63~ -16dBm(44~91 dBµV), 1dB step

ISDB Modulator Section

Standard

ARIB STD-B31

Constellation  

QPSK, 16QAM, 64QAM

Guard Interval

1/32, 1/16, 1/8, 1/4

Transmission Mode

2K, 4K, 8K

Code rate

1/2, 2/3, 3/4, 5/6, 7/8

RF frequency

100~1000MHz, 1KHz step

RF output level

-63~ -16dBm(44~91 dBµV), 1dB step

ATSC Modulator Section

Standard

ATSC A/53

Constellation

8VSB

RF output level

-63~-16dBm (44~91dBµV),1dB step

MER

≥35dB

RF frequency

100~1000MHz, 1KHz step

RF output level

-63~ -16dBm(44~91 dBµV), 1dB step

System

Management

Web

Language

English

Upgrade

Web update

General

Power supply

AC 100V±10%, 50/60Hz or AC 220V±10%, 50/60Hz

Dimensions

482x328x44.5mm = (19"x12.9"x1.7" )

Temperature

0~45°C(operation),-20~80°C(storage)

Question and Answers
Answer:
You need to make sure the modulator is hooked up with HDMI and the CVBS as well. HDMI doesn't carry Line 21 data, that data actually has the CC. Without taking the CVBS from the DTV box and into the HDCOAX-8 you're only passing audio video to the modulator and not the CC. Once you hook up the CVBS ports from the STB to the modulator it will work right away.
 
The HDMI video doesn't carry separate CC, if you turn the CC on the STB, it will become part of the Video image which we will encode it, it will be always on the RF,
You can connect HDMI from the STB as a source of the Video and Audio and separate CVBS baseband video output for the same STB as a source of CC -closed captioning, our modulator will detect and read the CC information for the analog video CVBS signal encoded on line 21.
The modulator will generate a separate CC608  strem together with the MPEG video and audio strem, from this analog CVBS signal.
Now, you will be able to turn ON/OFF CC on this specific channel on the TV using the remote control
Answer:
Thank you for contacting us, we have a gate solution for RF over coax distribution. 
 
Please check those 8and 4 ch HDMI modulators you could use to produce 10 channels form  DSTV decoders  via HDMI
 
Do you already have a coax network in place?
What modulation standard do you use in your country?
Please send me the topology drawing if you can
------------------------
2
Coax distribution is very easy and straightforward.
I would recommend combining 4ch and 8ch H-HDCAOX-8, because of the price. The 12ch HDMI is more expensive because it also has IPTV output.
 
The topology would be handy, I could tell you what splitters and taps you could use and where, but I will explain briefly how it works.
An RF meter would be needed during the installation.
Basically, we will output 35dBmv RF power from the modulators , than you will conect it to a 1x2 (4.5db loss) or 1x4 (7.5db loss) or 1x8 (13db loss splitter) , each splitter has different RF power insertion loss
There is also loss in the coax, depending on the frequency used average 4db per 100 feet ( 30m) The TV's can see the RF even at 0 dbm, so you have 35dv RF budget.
After the splitter you could use RF amplifiers if needed, in the other locations you could also use splitters or cascading TAP's , Tap has an INPUT, Drop or Drops, and Output for the next cascading TAP.
 
The easiest way to do it is to calculate the losses and plan it out, if not then connect the modulators and check the levels in the end locations and determine if Amps are needed or not.
 
Documents
downloadh-hdcoax-1-2-4-6-8-user-manual.pdf
User's Manual is avalible only for logged users.
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