8 channel HDMI and SDI Clear CATV RF Modulator QAM, ATSC, DVB-T, ISDB-T

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Description Features Drawings Video Model Selection Specification Q&A Documents Support

Universal Modulator that's unique design is the most capable Hybrid on the market.

Up to 8 Channels of HDMI or SDI inputs allow you to select either or in the options menu on the simple and creative GUI. This modulator by Thor has independent input cards for flexibility for Digital Modulation because it eliminates the need for HDMI to SDI or SDI to HDMI converters. Simply select which source you want to use and input the channel frequency creating an automated encoding headend device that can clean up your headend and modulation distribution infrastructure.

Each channel can individually be selected as an HDMI or SDI input, it could be switched on the fly using front panel buttons or Thor's dynamic proprietary Web interface. Each of the 8 channels of RF output can be set totally independent as a frequency AND modulation standard. For example, you can input 4 channels as HDMI and set to QAM output and then input 4 channels of SDI and as ATSC output. This flexibility that hasn't been seen before on the market creating a whole new generation of standard for encoder modulation products

The New THOR HYBRID Modulator has an NMS port and LCD display with simple D-Pad buttons for control and easy setup on the fly. It includes and supports the majority of modulation standards found in the world; For example: Clear QAM Annex A and Annex B, ATSC-8VSB, DVB-T, and ISDB-T. The Hybrid modulator supports MPEG2 video encoding up to 25Mbps/channel, Audio AC3 or MPEG1 Layer 2, and AAC, Thor's world-famous, low Latency, and VCT -Virtual Channel Numbers for increased for flexibility. Each CATV RF channel can be set individually, so it does not have to be in a linear 8ch block, feel free to spread out your new custom RF channels all over the existing RF spectrum in your modulation lineup.

  • 8 Independent HDMI and SDI Inputs - (individually selectable for each of the 8 channels you can output) 
  • HDMI is HDCP compliant for use with any source
  • SDI Inputs include support for Closed Caption 708
  • Outputs 8 separate Clear CATV RF channels QAM / ATSC - 8VSB / DVB-T / ISDB-T  (selectable in the GUI)
  • RF output on each of the 8 RF channels can be individually set to a frequency and modulation standard (2 on QAM, 3 on ATSC, 4 on ISDBT, etc)
  • DVB-C Annex A and B - QAM 64, QAM 256
  • Supports full HD video up to 1080p/59.94/60, other resolutions included are 1080i, 720p, 480i also supported
  • Low Latency supported; 3 different latency settings - 100/500/1000ms 
  • Video encoding rate up to 25Mbps
  • MPEG2 Video Encoding
  • Dolby AC3 and MPEG1 Layer 2, & AAC audio encoding
  • VCT - Virtual channel number and Name supported
  • Frequency - 50Mhz to 900Mhz
  • NMS web interface controllable
  • Easy to use web Gui Interface (setup and status)
  • LED's Status on front panel shows HDMI in blue or SDI in green for easy to see video detect link
  • LCD Display and front panel control buttons for setup, control and status
  • Powerful processing with the best MPEG2 video encoding chip
  • First High Density HDMI and SDI input modulator on the market
  • Lowest cost per channel in perfect HD resolution for any application from Live Sports, House of Worship, Concerts, Theaters, Malls, Airports, Hotels, Military, Private Enterprise

Model Selection

Part Number:   H-HYBRID-RF-8  


*All Specifications Subject to Change Without Notice



8x HDMI Inputs


8 x HD/SD-3G SDI Inputs (SDI has CC 708)

Supported Resolutions


1280x720P 60 / 59.94 / 50 Hz

1920x1080I 60 / 59.94 / 50 Hz 

1920x1080P 60 / 59.94 / 50 Hz

Video Codecs

MPEG-2 HD: 1.5 - 24  Mbps

Audio Codecs

MPEG1 Layer 2  Encoding

AAC Encoding

AC3 Dolby Encoding

Audio Sample Rate

48 kHz

Audio Bit Rates

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

Modulation Standard

1) DVB -C  QAM - J.83B, J.83B, QAM 64/256, (US Cable)

2) DVB -C  QAM - J.83A, QAM 16/32/64/128/256,  (European Cable)

3) ATSC - Constellation 8VSB ( US Off Air TV)

4) DVB-T ( European Off Air TV)

5) ISDB-T ( Latin America Off Air TV)

RF Frequency Range

50 Mhz to 950 MHz 1 KHz Step

RF Power Level

5 - 35 dBmV Adjustable

SDI Input

8 x BNC Connector, support SD-SDI, HD-SDI and 3G SDI Input (Closed Caption 708)

HDMI Input

8 x HDMI Input connector - HDCP compliant, 480i, 720p, 1080i, 1080p input resolution

Cables Included

8 HDMI/SDI Cables & Power Cord

Power Input

100-240 VAC Auto Switching
~ 20 W


19x17x3 19" Rack Mountable 1U high


9 Pounds

Operating Temperature

32-110 F

Question and Answers
according to our experience with the countries using ISDB-T, even ones with H.264 as the standard, the TV tuners are universal and can decode H.264 and MPEG2 as well. We send many devices to Brasil and Peru, and customers are very happy with the performance. A similar case is in the US, even if the standard for ATSC and DVB-C Annex B is MPEG2, most new TV's can decode MPEG4(H.264), Transport Stream. Also, our company has a very good return policy in case it would not work for your customers.
Higher frequencies have higher insertion loss in the coax. We have 3 different coax cables available for the TV Distribion networks These are Series 59, Series 6, and Series 11 called RG59, RG6, and RG11. Series 59 is the smallest, and Series 11 is the largest. RJ59 has high signal loss over the length, The RG11 is the best and has lees loss of signal loss over length, but is bulky, hard to install, and relatively expensive when compared to Series 6 coaxial cables. Series 6 is the most commonly used size due to the excellent trade-off in price, size, handling and signal loss. The following information is specific to Series 6 coaxial cable. Coaxial cable loss is normally specified in dB loss per 100 feet of cable. Examples for 6 cables loss in ATSC spectrum, 57 MHz -CH2 has only .15 dB/100’ 207MHz Channel -12 has 3.0 dB/100’, 473Mhz -Channel 14 has 4.5 dB/100’, 695Mhz -Channel 50 has 5.6 dB/100’ Please note that RF slitters add the insertion loss as well, for example, 1x2 slitter has 4.5dB loss, the 1x8 slitter has 12dB. RF signal can be amplified or if the coax distance is too high the best choice is to convert CATV RF to an optical signal and send over the fiber using the CATV RF fiber optic transmitter and receiver. This is the link to the RFOG https://thorbroadcast.com/product/thor-optical-mini-catv-rf-transmitter-45-1000mhz.html https://thorbroadcast.com/product/thor-fiber-optical-mini-ftth-rf-catv-cable-tv-receiver-8230.html
At first, glance when I read this I thought our Hybrid- 8 would be an ideal unit because it is universal 8 channel HDMI and SDI. And perhaps in some scenarios, it might still be a beneficial unit to have in the office. When I got to the point where you mentioned that you needed to pull up the stream on VLC, I realized you needed the duality of RF coax and IPTV. then we would like to use separate HDMI and SDI IP encoders / QAM modulators : I think you used them before : https://thorbroadcast.com/product/4-hdmi-component-hd-to-coax-and-iptv-hd-8230.html/21 https://thorbroadcast.com/product/1-4-sdi-to-qam-modulators-and-iptv-streaming-encoders.html/0 At this point, I need a more conclusive answer on how SDI feeds and how many HDMI feeds you need, so we can appropriately determine the correct amount of each unit. If you would like to switch the source instead of channels, then you would have to use a combination of HDM Switch + SDI switch connected to the modulators. Signal flow : x HDMI source to x:X HDMI switch to X HDMI modulators H-4ADHD-QAM-IPLL +X SDI sources to X/X SDI Switch to X SDI modulator H-4SDI-QAM-IPLL The modulators would be set to static RF channels, by controlling the HDMI and SDI switch you would inject desired program to the modulator , they would produce static TV QAM channel and IPTV multicast stream at the same time. The only thing is that each time you would switch the sources, it would be about the 5-second gap, our modulators would recognize that this is a different video and it would need to re-encode the video each time. If this is acceptable, then it is a relatively easy task.
So, you have 300 end locations, do you need to receive all 100 SDI's in each of the 300 locations? There is a lot of different ways to do it. 1) use multiple 8ch SDI Transmitters over fiber using splitters and run to 300 locations for 100 SDI videos, you would need : 13x 8channel transmitters H-8SDI-3G-TX https://thorbroadcast.com/product/8-ch-sd-hd-3g-sdi-over-single-fiber-cwdm-uncompressed-rack-mountable.html each transmitter would need to be connected to 1x32 optical splitter than you would need to use 13 8channel SDI receivers in each of the 300 locations to convert it back to SDI You would need to have 13 fibers to each location to do that. 2) if you do not need to have SDI's on the RX side, but the ability to view to those videos: You can encode your 100 SDI video and modulate it to Cable TV QAM channels : you can use this 8channel SDI encoder -QAM modulator : H-HYBRYD-RF-8 The output from those 13 modulators you can connect to 1550nm CATV RF transmitter than using EDFA amplified than using optical splitters we can distribute that to each of 300 locations. each end location would have fiber to RF receiver, so each location will get those 100 channels but in the CATV RF TV channels CATV RF fiber transmitter: https://thorbroadcast.com/product/1550nm-rf-over-fiber-tx-45-870-mhz-2-16-mw.html Fiber optic amplifier : https://thorbroadcast.com/product/20-dbm-edfa-optical-amplifier.html Optical slitters : https://thorbroadcast.com/product/1-x-2-to-1-x-128-fiber-optic-couplers.html CATV RF mini receiver https://thorbroadcast.com/product/thor-fiber-optical-mini-ftth-rf-catv-cable-tv-receiver-8230.html

User's Manual is avalible only for logged users.
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