An ATSC modulator must produce a clean 8VSB signal or TVs won't lock on the antenna input. The MINIMOD 2+ earned NAB Product of the Year, CE Pro Best, and CEDIA Best of Show because it delivers a broadcast-grade ATSC channel: +45 dBmV output and MER above 45 dB, so over-the-air TVs lock instantly and the picture stays perfect from headend to the farthest set.

The ATSC Modulator Integrators Have Trusted Since 2017
When TVs scan an antenna input and you need a clean 8VSB ATSC channel every set tunes, the VeCOAX MINIMOD 2+ is the ATSC modulator professionals specify β award-winning, US-built, proven on 50,000+ installations.
HDMI In β An 8VSB ATSC Channel on Every TV
An ATSC modulator encodes your HDMI source as an 8VSB over-the-air channel β the format antenna TVs expect β so any set in Antenna mode tunes it after a scan, no box required.
- Connect any HDMI source β receiver, media player, camera, or laptop
- Assign the ATSC channel (2β83) on the LCD; the HDMI becomes an OTA station
- Feed the 8VSB carrier into the antenna distribution or a combiner
- Scan each antenna-mode TV and the ATSC channel locks at 1080p
- No broadcast license, no tower, no converter box behind any screen
- Add modulators on other ATSC channels to build a full over-the-air grid

Put an ATSC Channel on the Line in Under a Minute. No Computer Required.
Other ATSC modulators force a console session to set the channel. Here the ATSC channel, 8VSB parameters, and output level live on a color LCD β launch an OTA channel without a computer.
- The display reports the active ATSC channel, frequency, and lock continuously
- Pick the ATSC channel straight from the front-panel buttons
- Completely standalone β no terminal app, serial cable, or driver needed
- Power on β set the ATSC channel β land coax β scan β on the air

Your ATSC Channel Sits Beside Your Over-the-Air Channels
ATSC 8VSB is the over-the-air standard for North American antenna TVs β switch to QAM, DVB-T, or ISDB-T on the panel for other plants. The channel folds into the existing grid.
Because the modulator outputs a true 8VSB ATSC carrier, the HDMI source you encoded tunes like a local broadcaster. Antenna-mode TVs add it to the over-the-air grid after a scan β no converter box, no license, no tower.
The same unit also produces QAM, DVB-T/C, and ISDB-T carriers, so it serves OTA plants and worldwide systems β HD, 4K, or 8K receivers.
Manage Your ATSC Modulators From Any Browser
The panel launches the channel; the optional LAN page lets you re-assign ATSC channels and verify 8VSB lock from the bench when units sit in a rack.
- Re-assign the ATSC channel and tune output level remotely over the LAN
- Watch a bank of ATSC modulators from one browser dashboard
- Opens in any computer or phone browser β no software to load
- 8VSB lock indicators confirm every ATSC channel is radiating cleanly

Your ATSC Channel Carries Broadcast-Grade Audio
ATSC carries AC-3 audio in its transport. The modulator embeds broadcast Dolby Digital so sound reaches every antenna-mode TV locked to the picture.
- Dolby Digital AC-3 / LPCM rides inside the 8VSB transport stream
- Audio stays locked to picture over long antenna runs β no sync slip
- Passes 5.1 surround intact from compatible HDMI sources
- Speech, music, and effects arrive clean on every OTA-tuned set

Three Connections. Done.
HDMI in. 8VSB carrier out. One scan. Your source joins the over-the-air grid on every TV in Full HD with synced audio.
Launching an ATSC channel takes minutes: connect the HDMI source, feed the F-type 8VSB output into the antenna distribution (or a passive combiner), assign a free ATSC channel on the LCD, and rescan antenna-mode TVs. No license, no tower, no per-TV box β the existing coax carries the OTA channel.
An ATSC Modulator With Broadcast-Headend Quality
Palm-sized aluminum build, clean 8VSB ATSC modulation, and a front-panel LCD β the professional way to put an over-the-air channel on coax. Made in USA with a 5-year warranty.
The VeCOAX MINIMOD 2+ produces ATSC channels the way broadcasters do it: full 1080p at 60fps MPEG-2 video, Dolby Digital audio, +45 dBmV output to drive long runs, a built-in color LCD for computer-free setup, and ATSC channels 2β83 plus every other worldwide standard. One small box turns any HDMI device into an over-the-air channel that reaches unlimited TVs over existing coax.
Stack Multiple ATSC Channels in 1RU
Need several ATSC channels? Mount up to four MINIMOD 2+ ATSC modulators in a single 1RU rack panel for a tidy, professional multi-channel headend.
The optional 1RU rack panel holds up to four ATSC modulators in one rack space, with front-panel access and proper airflow. Combine their outputs with a passive combiner and you have a clean multi-channel ATSC lineup riding a single coax β ideal for AV closets, server rooms, and broadcast facilities.
10+ ATSC Channels with the MiniBlade Kit
For large ATSC lineups, the VeCOAX MiniBlade system packs 10 or more modulator units into a single rack β each fully independent so one ATSC channel can never take down the rest.
When you need many ATSC channels at once, the MiniBlade rack kit delivers maximum density with independent power per unit. There is no shared point of failure: every ATSC channel runs on its own, which is exactly what 24/7 commercial systems demand.
Every Antenna-Mode TV Tunes the ATSC Channel β HD, 4K, and 8K
The 8VSB ATSC channel is a standard over-the-air broadcast, so any antenna tuner decodes it β from an older HD set to a new 8K display.
Because the carrier is genuine ATSC, antenna-mode compatibility is automatic. The modulator settles color, frame rate, and audio sync internally, so the ATSC channel renders correctly on every brand and resolution with no per-set setup.
Built to Modulate ATSC Flawlessly
Every detail exists to put your HDMI source on an 8VSB ATSC channel with instant TV lock and effortless setup.
Front-Panel Color LCD
Set your ATSC channel, frequency, and output level on the built-in display β no laptop, no web hunting.
One-Click Channel Recall
Bank and recall the full ATSC channel plan instantly when re-racking a unit.
ATSC Channels 2β83
Set the 8VSB carrier to the hertz and name the ATSC channel for each site.
1080p@60 Motion Encoding
1080p60 motion encoding keeps fast OTA content sharp on big antenna-fed screens.
8VSB Broadcast Modulation
MPEG-2 inside ATSC is exactly what antenna tuners expect for universal decode.
+45 dBmV Output
A +45 dBmV 8VSB carrier drives long antenna distribution and splits with no amp.
MER >45 dB
MER above broadcast spec keeps the ATSC channel artifact-free at the last set.
Full Digital DDS
DDS synthesis places ATSC carriers cleanly with no spurious into adjacent channels.
Secure Web Remote
Locked browser control for ATSC modulators stationed in racks and closets.
Unlimited TVs
One ATSC channel reaches five antenna TVs or five thousand at no per-set cost.
Built-In Test Pattern
A color-bar 8VSB carrier appears with no HDMI present to confirm the coax run.
HDMI Licensed + Full EDID
HDMI-licensed input with full EDID control for a reliable source handshake.
See an ATSC Channel Created Over Coax in Real Time
From wiring an HDMI source to tuning the new ATSC channel on every antenna TV β the whole process in under five minutes.
Full walkthrough: HDMI hookup, ATSC channel assignment on the LCD, 8VSB distribution over coax, antenna-mode scan, and stacking multiple OTA channels. Duration: 4 min 30 sec.
Where an ATSC Modulator Shines
Hotels & Resorts
Add an amenity ATSC channel to the guest-room over-the-air lineup.
Sports Bars
Broadcast a game feed as an ATSC channel every antenna-mode TV tunes.
Churches
Carry the worship camera as an ATSC channel to overflow and lobby sets.
Hospitals
Add patient-education ATSC channels to the hospital antenna plant.
Schools
Broadcast a campus-announcement ATSC channel on the antenna grid.
Corporate
Add dashboards as ATSC channels for every antenna-fed meeting room.
Residential
Add one home ATSC channel every antenna-mode TV in the house tunes.
Government
Deliver secure ATSC channels on the facility antenna distribution.
Why This Is the Best ATSC Modulator
Low-end ATSC modulators drift and emit dirty 8VSB that antenna tuners drop. The MINIMOD 2+ holds a locked, broadcast-clean ATSC channel across the whole plant.
ATSC Modulator β Technical Specifications
| Video Input | Compatible HDMI 2.0b / 2.1 for Latest HD / 4K Full Quality Sources β also compatible with legacy older HDMI versions (HDMI licensed, HDCP compliant) |
| Input Resolution | 1080p | 1080i | 720p | 576p | 576i | 480p | 480i @ 24/29.97/50/59.94/60fps |
| Video Encoding | MPEG-2 broadcast-standard encoding |
| Output Resolution | Same as input β up to 1080p Full HD |
| Audio Format | Dolby Digital Stereo LPCM |
| RF Frequency Range | 54β990 MHz β selectable down to the Hz steps |
| RF Channel Bandwidth | 6/7/8 MHz (model specific to broadcast format) |
| ATSC Channel Range | 2β83 ATSC (8VSB) | also 2β158 J.83B QAM | Full range for other standards | Channel or Frequency selectable |
| Modulation Standards | ATSC (8VSB), QAM (Annex A/B/C), DVB-T, DVB-C, ISDB-T |
| RF Output Power | -8 dBm | ~45 dBmV (adjustable) |
| MER (Modulation Error Ratio) | >45 dB β Broadcast Quality |
| Frequency Synthesis | Full Digital DDS β zero spurious & harmonics |
| RF Connector | F-Type Dual, 75Ξ© |
| Coaxial Cable Support | RG59 | RG6 (75Ξ© characteristic impedance) |
| RF Transmission Distance | β€3,000 m (~9,800 ft) β extendable with inline RF amplifiers |
| Display | Large high-resolution color LCD |
| Control | Front-panel buttons + Secure web browser remote (login-protected) |
| Network | 10/100/1000 Gigabit Ethernet RJ-45 β network compatible |
| Power Input | AC 100Vβ240V 50/60Hz, DC 12V/1A (adapter included) |
| Max Working Current | 850 mA @ 12V |
| Operating Temperature | -10Β°C to +45Β°C |
| Storage Temperature | -20Β°C to +60Β°C |
| Operating Humidity | 10β90% RH (no condensation) |
| Storage Humidity | 5β95% RH (no condensation) |
| Unit Dimensions (LΓWΓH) | 6β³ Γ 3β³ (4.5β³ with wall mount ears) Γ 1β³ |
| Unit Weight | 1 lb (0.45 kg) |
| Shipping Box (LΓWΓH) | 11β³ Γ 6β³ Γ 9.3β³ |
| Shipping Weight | 1 lb |
| Patent | Hardware, software, and display UI are PVIβs patent |
| Warranty | 5-Year Manufacturer Warranty |
| Origin | Designed & Made in USA |
ATSC Modulator For HDMI - Frequently Asked Questions
What is an ATSC modulator for HDMI?
How does an ATSC modulator for HDMI work over coax?
Why use an ATSC modulator for HDMI instead of HDMI cables?
Which sources work with this ATSC modulator for HDMI?
Which TVs can receive the atsc modulator channel?
Does this ATSC modulator for HDMI support QAM cable mode?
Does this ATSC modulator for HDMI support ATSC antenna mode?
Can this ATSC modulator for HDMI coexist with existing TV channels?
How many TVs can one ATSC modulator for HDMI feed?
How far can atsc modulator travel over coax?
Can I use existing coax with this ATSC modulator for HDMI?
Do I need a computer to set up this ATSC modulator for HDMI?
Why is the color LCD important for atsc modulator?
Can I manage this ATSC modulator for HDMI remotely?
What picture quality does this ATSC modulator for HDMI deliver?
Does this ATSC modulator for HDMI work with 4K and 8K TVs?
Can I add more atsc modulator channels later?
Where is this ATSC modulator for HDMI used most often?
How is this ATSC modulator for HDMI different from a analog channel modulator?
Is the MINIMOD 2+ good for professional atsc modulator?
Is this ATSC modulator for HDMI HDCP compliant?
What warranty and support come with this ATSC modulator for HDMI?
Complete Your ATSC Distribution System
Everything you need to combine, rack, and scale multiple ATSC channels.
Coax Combiner / Splitter (13-Port)
Ultra-low-loss 13-port coaxial combiner optimized for HD/4K digital TV. Bidirectional β use as combiner or splitter.
1RU Rack Panel (4-Slot)
Professional 19-inch rack mount panel. Install up to 4 MINIMOD 2+ units in a single 1RU space.
VeCOAX MINIMOD-4K Ultra HD
Upgrade to full 4K HDR over coax. Mix and match with MINIMOD 2+ units on the same system.
MINIMOD 2+ β 3-Pack Bundle
Three award-winning MINIMOD 2+ modulators β three independent HD channels at a bundle price below three single units.
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Ready to Put an ATSC Channel on Every TV?
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