The VeCOAX MINIMOD 4K is the synthesis of 20+ years of Pro Video Instruments technology — a unique, exclusive UHD HDMI-to-coax channel encoder unmatched on the worldwide market. Built on the same award-winning platform that made the MINIMOD line the most trusted in America, it converts any 4K HDMI source into a real 4K digital TV channel viewable on any modern 4K or 8K television.
Recognition
The Most Trusted Name in 4K Video Distribution
From the makers of the #1 award-winning HDMI modulator in the USA since 2017. The MINIMOD 4K brings true Ultra-HD to coax — a world-first from Pro Video Instruments.
How It Works
Any 4K HDMI Source. Every 4K TV in Your Building.
The MINIMOD 4K converts a 4K HDMI signal into a real 4K UHD digital TV channel distributed over your existing coaxial cables. No new wiring. No adapters behind every TV. No complicated setup.
- Connect any 4K HDMI source — media player, 4K cable box, camera, signage player
- Set your channel number and name directly on the color display
- Rescan your 4K/8K TVs — done. A real 4K UHD channel on every screen
- 5 TVs or 5,000 — same coax, no per-TV cost, no limits
- If the HDMI input is 4K the channel is 4K; if it is HD, the channel is HD
- Expand any time — add more VeCOAX modulators on the same coax
Setup
No Computer Needed. Set Up in 60 Seconds.
Configure every setting — channel name, number, format — right on the device using the large high-resolution color display.
- Built-in high-resolution color LCD with front-panel navigation
- Set channel number, name, and modulation type on screen
- No computer, no software, no app required
- Power on → Configure → Rescan 4K TVs → Watch
Universal Compatibility
Works in Cable or Antenna Mode on Any 4K TV
Your 4K channel blends seamlessly with your existing cable (QAM) or antenna (ATSC) lineup. Every 4K/8K TV in the building tunes it in — no mode changes, no adapters.
The MINIMOD 4K creates a real 4K UHD digital TV channel that coexists with whatever your TVs already receive. Switch between QAM, ATSC, ISDB-Tb, DVB-T2, DVB-C, and DMB-T directly from the front-panel color display — no computer needed. Compatible with worldwide cable and terrestrial standards for any modern 4K and 8K television.
Remote Control
Control Everything Via Web Browser
Manage all your MINIMOD 4K units remotely from any web browser — PC, tablet, or phone. Monitor status, change channels, adjust settings.
- Full web interface accessible over your local network
- Monitor and configure multiple units from one screen
- Works from PC, Mac, tablet, or smartphone
- Real-time status monitoring and alerting
Audio
Broadcast-Grade Dolby Audio
Studio-quality Dolby audio encoding delivers immersive sound to match the stunning 4K picture across every TV.
- Dolby AAC Stereo LPCM encoding
- Supports 4:2:0 standard formats from 4K decoders and players
- Studio-quality audio paired with true 4K video
- Crystal-clear voice, music, and effects on every screen
Installation
Three Steps to 4K on Every Screen
Connect 4K HDMI. Set your channel. Rescan your 4K TVs. Every screen in the building shows your content in true Ultra-HD.
Installation takes under 60 seconds: plug your 4K HDMI source into the MINIMOD 4K, choose a channel number on the built-in color display, then run a channel scan on your 4K/8K TVs. That’s it — every compatible TV now shows your content as a real 4K UHD channel with Dolby audio. No computer required, no IT department needed.
The MINIMOD 4K
The Ultimate 4K HDMI RF Modulator
True Ultra-HD broadcast encoding in a compact aluminum enclosure. Designed and manufactured in USA with a 5-year warranty and free unlimited tech support.
The VeCOAX MINIMOD 4K is a unique, exclusive UHD HDMI-to-coax channel encoder by Pro Video Instruments — the only product of its kind on the worldwide market. It converts any 4K HDMI source into a real 4K over-coaxial digital TV channel, received as a regular 4K TV channel by any 4K/8K-class television simply by rescanning the antenna channels. +45 dBmV RF output, built-in color LCD for computer-free setup, secure web remote control, and worldwide standard support.
Rack Solutions
Up to 4 Channels in a Single 1RU Space
Mount multiple MINIMOD 4K units in a standard 19-inch rack using our professional 1RU panel. Clean, organized, commercial-grade 4K installations.
The optional 1RU rack mount panel transforms your MINIMOD 4K modulators into a clean, professional 4K headend. Each panel holds up to 4 units in a single rack space, with proper ventilation and easy front-panel access to all controls — perfect for server rooms, AV closets, and broadcast facilities.
Compatibility
Built for 4K and 8K Televisions
Optimized for modern 4K and 8K displays, delivering full-screen brilliance with Dolby sound. (Note: the 4K channel requires a 4K/8K TV and is not received by older HD-only sets.)
The MINIMOD 4K outputs a true 4K UHD digital TV channel that 4K and 8K televisions decode natively. Advanced 4K multi-layer motion estimation encoding ensures a flawless, sharp image even on the largest screens. For HD-only environments, pair with the MINIMOD 2+ on the same coax — both run side by side.
Features
Engineered for 4K Excellence
Every detail of the MINIMOD 4K is designed for professional-grade Ultra-HD performance and effortless operation.
True 4K UHD Channel Over Coax
Distribute a real 4K Ultra-HD digital TV channel to unlimited 4K/8K TVs over your existing coaxial cables.
4K Multi-Layer Motion Estimation Encoding
Advanced 4K encoding delivers a flawless, sharp image even on the largest screens.
HDMI 2.0b / 2.1 Licensed
Works with the latest HDMI 2.1 sources with exclusive full EDID control for maximum compatibility.
Resolution Follows Source
4K HDMI in = 4K channel out. HD HDMI in = HD channel out. One device handles any source.
Large Hi-Res Color Display
All parameters programmable directly on the built-in color LCD — no computer needed.
+45 dBmV Output Power
Professional-grade +45 dBmV RF output power — drives large systems without external amplifiers.
Worldwide Standards
QAM, ATSC, ISDB-Tb, DVB-T2, DVB-C, DMB-T — selectable on the color display.
Secure Web Remote Control
Password-protected web browser interface for secure remote management from any device.
Unlimited TVs — No Per-TV Cost
Distribute to 5 TVs or 5,000+. No per-TV licensing, no per-screen cost.
Built-In Color Bars Test Pattern
Automatically displays color bars when no signal is connected — verify distribution quality without special tools.
Made in USA
Designed and manufactured by Pro Video Instruments, leveraging 20+ years of expertise.
5-Year Warranty + Free Support
Durable and reliable, backed by a 5-year warranty and unlimited free tech support.
Watch the Demo
See It In Action
Watch how the VeCOAX family distributes digital TV channels over coax to every screen.
Product overview covering connection, LCD setup, web remote access, TV standards, and real-world applications.
Applications
Built for Every 4K Environment
🏨
Hotels & Resorts
Premium 4K welcome and event channels to every guest room.
🍺
Sports Bars
Crystal-clear 4K game feeds to every screen in the venue.
⛪
Churches
Ultra-HD live services to overflow rooms and lobbies.
🏥
Hospitals
4K patient education and wayfinding to any department.
🎓
Schools
Campus-wide 4K content over existing coax infrastructure.
🏢
Corporate
4K town halls and signage to every conference room.
🎥
Broadcast & AV
Pristine 4K distribution for studios and production facilities.
🏠
Luxury Residential
Whole-home 4K distribution — one source to every TV.
Why PVI
Why MINIMOD 4K Is the Best 4K Modulator
The only true 4K HDMI-to-coax modulator on the worldwide market, built on the platform that has been #1 in the USA since 2017.
VeCOAX MINIMOD 2+
Competitors
✓True 4K UHD Channel Over Coax
✕HD Only
✓HDMI 2.0b / 2.1 Licensed
✕HDMI 1.4 — outdated
✓4K Multi-Layer Motion Estimation Encoding
✕Basic Encoding
✓Color LCD — No Computer Needed
✕Requires PC for Full Setup
✓+45 dBmV RF Output Power
✕Low Power — May Require External Amplifiers
✓Worldwide Standards (QAM/ATSC/DVB/ISDB)
✕Limited Standards
✓5-Year Manufacturer Warranty
✕1-Year Warranty
✓Made in USA · 20+ Years Expertise
✕Rebranded import
Specifications
Technical Specifications
| Video Input | 4K | 1080p | 1080i | 720p | 576p | 576i | 480p | 480i @ 24/50/60fps (HDMI 2.0b/2.1 licensed, full EDID control) |
| Color Format | Supports 4:2:0 standard formats from 4K decoders and video players |
| Video Encoding | Advanced 4K multi-layer motion estimation encoding |
| Output Resolution | Same as input — 4K in = 4K out, HD in = HD out |
| Audio Format | Dolby AAC Stereo LPCM |
| RF Frequency Range | 54–990 MHz — selectable down to the Hz steps |
| RF Channel Bandwidth | 6/7/8 MHz (model specific to broadcast format) |
| Channel Range | 2–83 ATSC mode | 2–158 J83B QAM | Full range for other standards | Channel or Frequency selectable |
| Modulation Standards | QAM, ATSC, ISDB-Tb, DVB-T2, DVB-C, DMB-T |
| RF Output Power | -8 dBm | ~45 dBmV (adjustable) |
| RF Connector | F-Type Dual, 75Ω |
| Coaxial Cable Support | RG59 | RG6 (75Ω characteristic impedance) |
| RF Transmission Distance | ≤3,000 m (~9,800 ft) — extendable with inline RF amplifiers |
| Display | Large high-resolution color LCD |
| Control | Front-panel buttons + Secure web browser remote (login-protected) |
| Network | Ethernet RJ-45 for web remote access and control |
| Power Input | AC 100V–240V 50/60Hz, DC 12V/1A (adapter included) |
| Max Working Current | 850 mA @ 12V |
| Operating Temperature | -10°C to +45°C |
| Storage Temperature | -20°C to +60°C |
| Operating Humidity | 10–90% RH (no condensation) |
| Storage Humidity | 5–95% RH (no condensation) |
| Unit Dimensions (L×W×H) | 6″ × 3″ (4.5″ with wall mount ears) × 1″ |
| Unit Weight | 1 lb (0.45 kg) |
| Shipping Box (L×W×H) | 11″ × 6″ × 9.3″ |
| TV Requirement | Requires a 4K/8K television to receive the 4K channel (not received by HD-only TVs) |
| Patent | Hardware, software, and display UI are PVI’s patent |
| Warranty | 5-Year Manufacturer Warranty |
| Origin | Designed & Made in USA |
FAQ
4K HDMI Modulator - Frequently Asked Questions
What is a 4K HDMI modulator and how does it work?
A 4K HDMI modulator converts a 4K HDMI source into a real Ultra-HD digital TV channel distributed over standard coaxial cable. The VeCOAX MINIMOD 4K lets compatible 4K and 8K TVs tune to that channel like a normal cable or antenna channel, without streaming boxes behind every TV.
Does the MINIMOD 4K output stay 4K over coax?
Yes. When the HDMI input is 4K, the MINIMOD 4K creates a true 4K UHD RF channel over coax. If the source is HD, the channel follows the HD source format, so the unit can also work with HD sources.
Do my TVs need to be 4K to use the MINIMOD 4K?
To tune and display the 4K channel, the TVs should support 4K digital TV reception. 8K TVs can also display the channel, while older HD-only TVs should use an HD modulator such as MINIMOD 2+ on a separate channel for mixed systems.
How many 4K TVs can one MINIMOD 4K feed?
Unlimited. One MINIMOD 4K can distribute one 4K channel to 5 TVs or 5,000+ compatible TVs over existing coax, depending on proper RF level planning, splitters, and cable condition.
Can the MINIMOD 4K use existing coax cable?
Yes. The MINIMOD 4K is designed to distribute 4K video over the coax already installed in buildings. This avoids long HDMI cable runs, network streaming hardware, and set-top boxes behind each TV.
Do I need a computer to set up the MINIMOD 4K?
No. The MINIMOD 4K has a built-in color LCD display and front-panel controls for channel setup, modulation settings, and configuration. A computer is not required for normal setup.
Does the MINIMOD 4K support web browser remote control?
Yes. The MINIMOD 4K can be managed through a browser interface on the local network, letting you monitor and adjust settings from a computer, tablet, or phone when the unit is installed in an AV closet or rack.
Which HDMI sources work with the MINIMOD 4K?
The MINIMOD 4K works with 4K HDMI sources such as media players, 4K cable or satellite receivers, cameras, computers, digital signage players, video switchers, and other professional HDMI outputs.
Which HDMI versions and source formats are supported?
The MINIMOD 4K is designed for modern 4K HDMI sources and includes HDMI licensing with EDID control for source compatibility. Use high-quality HDMI cables and set the source output to a supported 4K format for best results.
Does the MINIMOD 4K work with QAM and ATSC?
Yes. The MINIMOD 4K supports common digital TV modulation standards used for coax distribution. Use QAM for cable-mode TV lineups and ATSC for antenna-mode TV lineups where supported by the TVs.
Can the MINIMOD 4K coexist with existing cable or antenna channels?
Yes. The 4K channel can be assigned to an available RF frequency so it coexists with existing channels on the same coax network. After setup, run a channel scan on the TVs so they store the new 4K channel.
How do TVs find the MINIMOD 4K channel?
After setting the channel number and modulation mode, run an auto-scan on each TV in the matching Cable/QAM or Antenna/ATSC mode. The TV stores the MINIMOD 4K output like a normal digital TV channel.
Can I add more 4K channels later?
Yes. Each MINIMOD 4K creates one 4K channel on its own RF frequency. To add more 4K channels, add more MINIMOD 4K units and combine their RF outputs with a proper coax combiner.
Can I mix 4K and HD modulators on the same coax?
Yes. You can run a MINIMOD 4K for a 4K channel and add MINIMOD 2+, RACK, ULTRA, or Mini Blade HD systems for HD channels on different RF frequencies. This is useful in buildings with both 4K and HD TVs.
Is the MINIMOD 4K good for hotels and resorts?
Yes. Hotels can use the MINIMOD 4K for premium 4K property channels, event feeds, digital signage, venue video, or luxury suite content distributed through existing coax infrastructure.
Is the MINIMOD 4K good for sports bars and venues?
Yes. Sports bars and venues can distribute one 4K HDMI source as a tuned TV channel across many compatible displays. This reduces HDMI cable complexity and avoids one player or receiver behind each screen.
Can the MINIMOD 4K be used for 4K digital signage?
Yes. Connect a 4K signage player or computer to the MINIMOD 4K and distribute that content as a 4K TV channel over coax. This is useful for lobbies, retail, campuses, hospitality, and corporate facilities.
Can the MINIMOD 4K distribute camera or production video?
Yes. A compatible 4K HDMI camera, switcher, or production output can feed the MINIMOD 4K and become a 4K TV channel over coax. This is useful for venues, houses of worship, monitoring, and in-building video distribution.
What is the difference between MINIMOD 4K and MINIMOD 2+?
MINIMOD 4K is for a true 4K UHD channel over coax to compatible 4K and 8K TVs. MINIMOD 2+ is the HD version for 1080p channels and mixed or legacy TV environments.
What is the difference between MINIMOD 4K and RACK or ULTRA systems?
MINIMOD 4K creates one 4K channel. RACK and ULTRA systems are better when you need multiple HD channels in rack or centralized systems. Many installations combine one or more 4K channels with HD multi-channel systems.
Is the MINIMOD 4K made for 24/7 commercial use?
Yes. The MINIMOD 4K is built for professional commercial video distribution and continuous operation. It includes a 5-year manufacturer warranty and free lifetime technical support from Pro Video Instruments.
Why choose the MINIMOD 4K for 4K HDMI over coax?
Choose the MINIMOD 4K when you need a true 4K HDMI source distributed as a real TV channel over existing coax, with no set-top boxes, no computer setup requirement, Made in USA support, and unlimited compatible TV distribution.
Accessories
Complete Your 4K Setup
Everything you need to build a professional multi-channel 4K distribution system.
Coax Combiner / Splitter (13-Port)
Combine multiple 4K modulator outputs onto one coax. Bidirectional — use as combiner or splitter.
$105.00$95.00You save $10.00
1RU Rack Panel (4-Slot)
Mount up to 4 MINIMOD 4K units in a single 1RU rack space.
$105.00$99.00You save $6.00
VeCOAX MINIMOD 2+ (HD)
Run HD channels alongside your 4K channel on the same coax for mixed environments.
$495.00$445.00You save $50.00
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