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WolfPack HDMI to ATSC / QAM Adapter

WolfPack HDMI to ATSC / QAM Adapter
WolfPack HDMI to ATSC / QAM Adapter
WolfPack HDMI to ATSC / QAM Adapter - Extra Image 1WolfPack HDMI to ATSC / QAM Adapter - Extra Image 2WolfPack HDMI to ATSC / QAM Adapter - Extra Image 3
WolfPack HDMI to ATSC / QAM Adapter
WolfPack HDMI to ATSC / QAM Adapter
WolfPack HDMI to ATSC / QAM Adapter

One Channel HDMI to ATSC/QAM Adapter

Also supports DVB-C/DVB-T/ISDB-T

Web GUI Setup & Control

Sends 1080p HDMI via coax cables to TVs

HDCP Compliant

Free Shipping

1-Year Warranty

Lifetime Tech Support

Part # HDTVNDS3522C
Today's Price: $1,000.00
Out Of Stock
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WolfPack HDMI Extenders This WolfPack™ One Channel HDMI to ATSC & QAM Adapter allows you to easily distribute content up to 1080p resolution over the existing TV coax cables to an unlimited number of displays using the TVs built in QAM/ATSC tuner. It eliminates the need for cumbersome and expensive set-top-boxes or media players at each display. The single channel HDMI to ATSC Adapter also supports QAM, DVB-C & T, ASTC and ISDB-T. You can easily expand the number of TV channels at any time by simply adding more HDMI to ATSC Adapters going to a simple coax splitter attached to on the coax outputs.

NOTE: This product has been discontinued. See the above SIMILAR Tab for equivalent products or, if not there, call us at 833-WOLFPACK (833-965-3722) right now to discuss your needs.

This HDMI to ATSC / QAM Modulator is an all-in-one device includes MPEG-2 encoding and modulation to convert HDMI audio/video signals into DVB-C / DVB-T / ATSC / ISDBT with an RF out & dynamic switching. The low cost HDMI to ATSC encoder allows a single HDMI audio/video signal input to be distributed to applications encompassing home entertainment, surveillance control, Digital Signage, Mom-&-Pop shops, etc. The sources could be from satellite receivers, closed-circuit television cameras, Blue-ray players, etc. Its output signal is received by the TVs ATSC / QAM Tuner input. It is superb for adding a security video channel or information channel to over-the-air TV signals that can be viewed by hotel guests or apartment tenants.

The setup and control of the HDMI to ATSC Modulator is via a secure WEB GUI preventing others from changing the settings. This saves tech support calls and visits. The built-in web server allows you to access network and video quality settings. Other modulators have controls on the unit with buttons that can be easily changed by anyone causing outages and tech support visits to set it back up.

What Sets our WolfPack Single Channel HDMI to ATSC / QAM Adapter Apart From Others:

  1. Supports QAM, DVB-C & T, ASTC and ISDB-T
  2. Sends one source to multiple displays with one modulator via coax splitter
  3. Secure Web GUI Setup and Control
  4. Supports the latest 1080p HDMI version 1.4
  5. Supports the latest 1080p HDCP version 1.4
  6. 1-Year Warranty
  7. Lifetime Telephone Tech Support from the USA
  8. Lifetime TEXT Support from the USA
  9. You don't have to Submit a Ticket to get support, just call or TEXT us
  10. 30 Day Open Box Returns
  11. Free UPS Insured Ground Shipping
  12. Quantity discounts
This WolfPack HDMI to ATSC / QAM modulator is easily configured using a web browser when directly connected with a PC using Ethernet cable. Its web control panel provides all the detailed control functions such as DTV system selection (ATSC, DVB-T, DVB-C, DMBT, ISDB-T), TV channel frequency, channel name and so on.

BEWARE: This WolfPack Single Channel HD ATSC RF Modulator supports 2-Channel AC3 Dolby Digital. Others mislead you and don't mention theirs also is 2-channel as they only say Dolby Digital. Theirs is 2-channel also.

HDMI to ATSC Adapter Features:

  • One (1) Channel HDMI input for encoding to the coax output
  • Also includes one (1) digital RF input for cascading
  • HDMI version 1.4
  • HDCP version 1.4
  • MPEG-2 SD/HD video encoding
  • Latency: Encoding latency about 1 second
  • MPEG1 Layer II, AAC, AC3 audio encoding
  • CC (closed caption) EIA608 supported
  • Transmission mode (FFT): 2K, 8K (applied in DVB-T modulation)
  • RF output level: -63~-16dBm (44~91 dBuV), 1dB step
  • MER ≥35dB
  • RF frequency: 100~1000MHz, 1KHz step
  • DVB-C/T/ASTC/ISDBT RF in one device, DVB-C/T/ASTC/ISDBT modulation dynamic switching
  • Easy operation with Web GUI management
  • HDTV Modulator supports up to 1080p
  • Supports the ATSC digital TV standard
  • Supports 2-channel AC3 and AAC audio
  • Comes with wall-mount brackets
This HDMI to RF ATSC Adapter converts your local AV and HDMI signal into an RF signal for distribution over coaxial cables. The consumer HDMI to ATSC Adapter is designed to make your HD or AV Device use more convenient, productive and cost-efficient.

The HDMI to ATSC Modulator can do digital coding processing for HDMI with DTV technology. The HDMI to ATSC Adapter adopts RF modulation technology characteristic to transmit the multiple RF signal through one common coax cable for long distance transmission without amplification. The HDMI to ATSC Adapter can distribute your HD or AV source to HD resolution to an unlimited number of displays over almost any distance. By adding a DTV network mixer at the RF cable you can easily achieve a large number of displays or DTVs.

Why not buy this HDMI to ATSC Adapter today?


This WolfPack HDMI to ATSC / QAM Modulator is an universal RF modulator for worldwide digital TV systems. It supports modulation into terrestrial digital TV channel frequencies for ATSC, DVB-T, DVB-C, DMBT and ISDB-T TV signals. Its programmable TV channel selection allows users to select any desired TV channel frequency for its RF output. This HDMI to ATSC / QAM Modulator can be used as a standalone unit or multiple modulators chained together for creating more private digital TV channels. No coax combiner needed.

You can add dozens of these HDMI to Coax modulators to the existing coaxial network in homes, buildings, hotels, gyms, churches, schools, commercial, residential, industrial, security and your unique application. It is easy to set up, just create your channel names and numbers and find the digital channels on all of your TVs that are connected t0 the coax input on your TV (not the HDMI input).

HDMI to ATSC Adapter Specs:


  • ATSC Standard: ATSC A/53
  • MER: ≥35dB
  • RF frequency: 100~1000MHz in 1KHz steps
  • RF output level: -63~-16(44~91dbuV), 1db step
  • Constellation: 8VSB


  • Video Encoding MPEG-2
  • Interface: HDMI input
  • Input Resolution: 480@ 59.94/60i, 576@ 50i,720@ 50/59.94/60p, 1080@ 50i,1080@ 59.94/60i, 1080@ 50p,1080@ 59.94/60p
  • Output Resolution: 480@30p, 576@25p, 720@25/30p, 1080@25p, 1080@30p, 1080@25p, 1080@30p
  • Bit rate: 1.000~20.00 Mbps
  • Aspect Ratio: 16:9
  • Audio Encoding: MPEG1 Layer II, AAC, AC3
  • Audio Sample rate: 48 KHz
  • Bit rate:
  • MPEG1 Layer II: 192kbps
  • AAC: VBR
  • AC3 128 kbps

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 in 1KHz steps
  • RF output level: -63~-16 (44~91dbuV), 0.1db step


  • Standard J.83A (DVB-C), J.83B MER ≥35dB
  • RF frequency 100~1000MHz, 1KHz step
  • RF output level -63~-16(44~91dbuV), 1db step
  • Symbol rate 3.000~7.000Msps adjustable
  • J.83A Constellation 16/32/64/128/256QAM Bandwidth 8M
  • J.83B Constellation 64/256QAM Bandwidth 6M


  • Standard: ARIB STD-B31
  • Constellation: QPSK, 16QAM, 64QAM
  • Guard Interval: 1/32, 1/16, 1/8,1/4
  • Transmission mode: 2K, 4K, 8K
  • RF frequency: 100~1000MHz on 1KHz step
  • RF output level: -63~-16(44~91dbuV), 1db step


  • Control: via web NMS
  • Language: English
  • LCN Insertion: yes
  • Upgrade: Web-server


  • Power supply: DC 12V
  • Dimensions: 203*144*52mm
  • Weight: <1kg
  • Operation temperature:
  • 0~45℃

Why not buy this Low Cost HDMI to ATSC Adapter today?



This WolfPack HDMI to ATSC / QAM Adapter can be used as a standalone unit or cascading with other units together. Multiple of these digital modulators can be linked together by feeding the modulated RF output from the first unit into the RF input of the next HD modulator so additional private digital TV channels can be created and combined together in one RF output for large-scale HDMI over coax distribution.

You can also use RF coax splitters to distribute the modulated coax feed to multiple TV displays. You can also add more of these WolfPack HDMI to ATSC / QAM Adapters for modulating more HD videos into more digital TV channels and combined them in one coax cable run, or using the daisy chain hookup for cascading for large-scale private TV channel distribution

This WolfPack HDMI to ATSC / QAM Adapter sends 720p or 1080p HDMI video to all HDTV sets connected through the same coax cable for large-scale TV distribution applications such as:
  • Home entertainment
  • Educational training
  • Security and surveillance
  • Commercial advertisement and digital signage
  • Information displays
  • Emergency messaging announcements
  • Private MATV system systems


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Q: Will your HDMI to ATSC / QAM adapter transmit an HDMI signal from my laptop to a coax input on my TV?
Yes, but the TV must have a digital tuner capable of tuning ATSC (most common) or another digital standard. Also, the the coax output can be run through any analog splitter or amplifier to connect to more TVs, if you have them.

1-Year Warranty
Click Here for Product Warranty


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United States Governments SEWP program

This product may be eligible to be purchased through the United States Governments SEWP program, similar to their GSA program.

The NASA SEWP (Solutions for Enterprise-Wide Procurement) provides the latest in Information and Communications Technology (ICT) and Audio-Visual (AV) products and services for all Federal Agencies and their approved contractors.

If you are a government agency and want to see whether HDTV Supply has this product in the SEWP database go to our our SEWP Contract Holder RedHawk IT Solutions, LLC to allow you to maybe order this product from the United States Governments SEWP program. It is very easy to place your order, go to the link above and enter HDTV Supply and there you will see a list of part numbers of what we currently have. If you do not see it than give us a call at 833-WOLFPACK (833-965-3722) and we may be able to enter it.

RedHawk IT Solutions

Our SEWP Contract Holder RedHawk IT Solutions partner has the following credentials:
  • DUNS: 801957023
  • TIN: 260452583
  • CAGE: 4TBM6
Their SEWP Federal Contracts are:
  • SEWP Contract Number: NNG15SD38B
  • Group: Group B_SDVOSB
  • NAICS: 541519
  • SEWP Contract Number: NNG15SD88B
  • Group: Group C
  • NAICS: 541519
The SEWP Program Office manages a suite of government-wide IT products and services contracts that enable NASA and all Federal Agencies to achieve their missions and strategic initiatives by providing streamlined access to critical technologies and solutions. The Program provides best value for the Federal Government and American taxpayer through innovative procurement processes, premier customer service and outreach, acquisition insight, and partnership with Government entities and Industry.

For a complete listing of HDTV Supply products from us, or our other vendors, call 833-WOLFPACK (833-965-3722).

HDTV Supply WolfPack Product Catalog (2020)

WolfPack HDMI to ATSC / QAM Adapter

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