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RF QAM Modulator

A QAM Modulator is an electronic device used to accept baseband video, audio, HDMI, or SDI signals and modulate that video onto a carrier. In the past, analog modulators placed NTSC or PAL video directly on the CATV RF spectrum.

Thor Broadcast and Thor Fiber have been at the forefront of using a variety of methods to multiplex carriers onto a single RF QAM. This technology has been a driving force for to produce chassis’ with all sorts of inputs: HDMI, HD-SDI, RF, ASI, CVBS, RGB etc. The problem is that not every company is made equally. Most vendors in the modulation and encoding family tend to promise the same script of items that each unit can do. This couldn’t be farther from the truth. Every Chassis from every company is going to be inherently different from the CPU operation, the ability to MUX carriers, ability to display 1080P across 4 adjacent synchronous channels simultaneously. Live events have always have always had setbacks in being able to correlate what people see Live versus what is being rebroadcast in the RF infrastructure. Low Latency is now becoming a staple of event halls, house of worship, sporting events, concerts, etc. Thor Fiber has been diligent in the approach to curate to these needs.

The Importance of Expertise and Customer Support in Professional-Grade Equipment

Every customer is different and every client deserves the attention and pre-sales knowledge before blindly purchasing a consumer grade product at a professional product price. This dissention amongst the wannabe’s and the professional’s has greatly degraded the value of many products across the board. Too many people rely on flashy marketing material versus the self-evident differences in these products. In recent years such a company has emerged named “Thor Digital” that has been using the unique identifier “Thor” as a driving force to their clients. This type of cross marketing through an alternate company has introduced Thor Fiber and Thor Broadcast to broach the subject differently. Our professional grade, consumer priced, products can’t be replicated based on a series of options only our line of products can bring you. The robust internal guts start with a chassis that’s uniformly been developed by Thor Engineers and manufactured on the specifications and techniques that we have designed in house. Purchasing knock-offs at a discounted price will land you in hot water in a hurry. The video quality, processing speed, inputs and outputs, customized network management software, have been blended together to bring some of the highest graded encoder modulator’s on the market today. Thor’s expansive knowledge in optical engineering and decades of inherent learning has cultivated a pragmatic unit that anyone can use. Thor Engineers have been lauded in their impeccable customer service in assistance to help educate the consumer on products, installation, and training on how to use their equipment. The friendly sales staff has been able to put Thor Fiber on the map in nearly every industry: bars, restaurants, house of worship, hospitality, stadiums, education, military, municipality and private sector. It’s not hard to find a product with 4 HDMI to RF inputs, but our success has been on the consistent helpful nature of the Thor Team. Everyone has a product to sell, but few have the know-how, experience, expertise, and knowledge that can be matched to provide the perfect solution to an age old dilemma. Carrying 4 adjacent channels multiplexed on an RF carrier isn’t the easiest thing to do, that’s why we did all the work for you. It doesn’t matter what your international standard is DVB-C, DVB-T, QAM, ATSC, NTSC, PAL etc, Thor Fiber has the firmware and engineering talent to make your device work for your situation. We live in a progressive society where if something works, everyone will duplicate, except for when their duplicates are far more inferior in every way.

Justin White
Justin White
Broadcast Engineer
Broadcast engineer specializing in turnkey CATV and fiber-transport solutions. Experienced in designing and deploying complete encoding/decoding workflows to move virtually any signal over IP, fiber, and RF. Focused on ultra-low-latency headend architectures and custom mux/demux builds, supporting demanding environments across telecom, sports, education, hospitality, studios, live events, and mission-critical institutions worldwide.
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Contact us

Thor Broadcast Sales

Email: [email protected]
Phone: 1(800)521-THOR (8467) Ext 1
FAX: 1(800)521-6384

Customer Service/ Support

Phone: 1-800 521-THOR(8467) Ext 2
Email: [email protected]

Case Studies

- Converting Clear QAM HDTV Channels to Analog RF NTSC for Multi-Site Distribution
- Stadium IPTV - Replay System
- Hotel HDMI-to-QAM TV Distribution
- University IPTV Lecture Systems

  • CATV Modulators:
    • HDMI RF Modulators
    • HD-SDI converters
    • IP to CATV Edge Modulators
  • DVB Encoders:
    • IPTV Video Encoders
    • Hdmi RTSP RTMP RTSP Encoders
    • Transcoders, MPEG Converters, IP ASI Gateways
  • Decoders (IRD's & STB's):
    • RF input - Video /Audio Ouput
    • IP Broadcast Decoders
    • RF CATV and IPTV OTT STB's
  • Satellite Modulators:
    • DVB-S/S2 Satellite Modulators
  • Fiber Optic Transport:
    • SDI Fiber Optic Extenders, Digital Audio Extenders
    • SDI SD/HD/3G with CWDM
    • Cable TV CATV RF 45-900Mhz
    • L-Band Satellite RF 45-3000Mhz
    • Data & Ethernet over fiber
    • Analog Audio Video
    • Fiber Amplifiers - EDFA
    • DVB - ASI
    • Fiber Jumpers, Cables, Attenuators,
    • Optic Splitters Couplers CWDM Muxes
    • Optical Meters, Test Equipment, Accesories
    • Analog Baseband Video Audio, RS485/422/232 Data, Contact Closure
  • HDMI SDI Switchers, LAN Extenders, and Wireless Video Transport:
    • HD Video Switchers and Signal Format Converters for AV Pros
    • Wireless HD SD Video Data Equipment
    • Video Audio Extenders Over Ethernet LAN IP Network
  • HD 4K Cameras, SDI - HDMI - IP Streaming - PTZ - Broadcast and Security:
    • PTZ Streaming Cameras Broadcast cameras with SDI ,HDMI CVBS USB
  • DIscounted Inventory:
    • Satellite and CATV Broadcast Equipment for Sale
    • Lab Used Broadcast Equipment on sale
    • Past Generation Equipment
  • SDI Monitors:
  • Warehouse:
Thor Broadcast Logo
Email: [email protected]
Phone: 1(800) 521-8467 Ext 1
FAX: 1(800)521-6384
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Popular:
  • RF Modulator
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Thor Broadcast
Torrance Business Park
2421 W 205th St
Torrance
CA 90501

© 2026 Thor Broadcast
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