Compact HDMI Modulators

Compact HDMI modulators deliver one professional digital TV channel from a single body small enough to sit behind a TV, inside a podium, or mount four-across in a single rack space. They are the most popular choice for menu boards, single-camera live feeds, lobby information channels, classrooms, houses of worship and any job where one source must reach unlimited TVs over the existing coax.

This collection brings together the three single-channel VeCOAX compact units. The MINIMOD-2+ ($445) is the #1 best-selling HDMI-to-coax modulator in the USA — Full HD 1080p, Dolby Digital audio, color LCD setup and a +45 dBmV output that reaches every TV in the building. The MICROMOD-3 SDI ($995) adds broadcast 3G/HD/SD-SDI and analog AV inputs alongside HDMI for camera and production workflows. The MINIMOD 4K ($1,495) is the world's first true 4K Ultra-HD modulator over coax for premium displays.

Every compact model sets up from its built-in color display in minutes — no computer, no software, no streaming subscription. Each supports QAM, ATSC, DVB-T/C and ISDB-T, selectable on screen, so the same unit ships and works anywhere in the world. All are backed by a 5-year warranty, free lifetime tech support, same-day shipping, and are designed and made in the USA.

If you need more than one source on its own channel, see our multi-channel and modular modulators; to combine several compact units onto one coax run, add a coax combiner.

🏆 #1 Modulator in USA Since 2017🇺🇸 Designed & Made in USA🛡️ 5-Year Warranty📞 Free Lifetime Tech Support⚡ Same-Day Shipping📺 Works With Any TV
Compare the range

Compact modulators compared

All three are single-channel and computer-free — choose by the input you have and the resolution you need.

ModelInputsMax ResolutionBest ForTV StandardsPrice
VeCOAX MINIMOD 2+HDMI1080p60The everyday HD workhorseQAM · ATSC · DVB-T/C · ISDB-T$445
VeCOAX MICROMOD-3 SDI3G-SDI · HDMI · AV1080p60Cameras & broadcast/productionQAM · ATSC · DVB-T/C · ISDB-T · DTMB$995
VeCOAX MINIMOD 4KHDMI 2.12160p (4K UHD)Premium 4K displaysQAM · ATSC · DVB-T2/C · ISDB-T$1,495
HDMI / SDI / AV Sources cameras · players VeCOAX RF Modulator Coax Splitter existing cables TV TV TV · unlimited
How it works: HDMI, SDI or AV sources connect to the VeCOAX modulator, which broadcasts crisp digital TV channels across your existing coax to unlimited TVs — no new cabling, no computer.
Buyer's guide

When a compact single-channel modulator is the right call

HD, 4K or SDI — which compact model?

If your source is HDMI and your TVs are HD, the MINIMOD 2+ is the proven, lowest-cost choice. If you feed from broadcast cameras or a production switcher with SDI, choose the MICROMOD-3 SDI, which also accepts HDMI and analog AV. If you must preserve a true 4K UHD picture on premium displays, the MINIMOD 4K is the only modulator that delivers a real Ultra-HD channel over coax.

Can one compact unit feed many TVs?

Yes. A single modulator creates one channel that unlimited TVs can tune simultaneously. You only add hardware when you need an additional independent source on its own channel.

Do compact modulators need a computer?

No. Each has a built-in color LCD for full setup — pick the output channel and TV standard on screen, then scan channels on your TVs. A web-browser remote is also included for remote management.

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