When you distribute more than one HDMI source over coax, each VeCOAX modulator outputs its own channel on its own frequency. The Coax Combiner merges all of those channels onto one cable with minimal loss, so a single coaxial run carries your entire custom channel lineup. Because every one of the 12+1 ports is bidirectional, the same device also works as a low-loss splitter to fan a combined feed back out to multiple coax drops. It is a passive RF combiner / splitter — not a transcoder or a multiplexer — engineered specifically for clean HD and 4K digital TV distribution.
How It Works
One Coax Combiner. Every Channel on One Cable.
The PVI Coax Combiner / Splitter mixes the outputs of several HDMI RF modulators into a single coaxial feed — the simplest way to build a multi-channel headend and distribute every channel to every TV.
- Combine the RF outputs of multiple HDMI modulators onto one coaxial line
- Every one of the 13 ports works as an input OR an output — fully bidirectional
- Use it in reverse as a splitter to feed one coax source to multiple TV drops
- Daisy-chain multiple units when you need even more ports
- Ultra-low insertion loss preserves signal quality for HD and 4K digital TV
Multi-Channel Distribution
Build a Professional Multi-Channel Headend
Add one HDMI modulator per channel, combine them all with a single Coax Combiner, and send the complete lineup to unlimited TVs over your existing coax.
Specifications
Coax Combiner / Splitter Specifications
| Type | Passive coaxial combiner / splitter (bidirectional) |
| Ports | 12 + 1 (13 total) — every port is input or output |
| Function | Combine multiple modulators onto one coax, or split one coax to many |
| Insertion Loss | Ultra-low — optimized for HD/4K digital TV |
| Characteristic Impedance | 75Ω |
| Connector Type | F-Type |
| Coaxial Cable Support | RG59 | RG6 |
| Expandable | Daisy-chain multiple units for more ports |
| Compatibility | VeCOAX MINIMOD, MiniBlade, RACK and any 75Ω RF source |
| Please Note | This is a passive combiner / splitter — NOT a transcoder or multiplexer |
| Warranty & Support | Backed by PVI free unlimited tech support |
| Origin | Designed in USA by Pro Video Instruments |
FAQ
Coax Combiner / Splitter — Frequently Asked Questions
What is a coax combiner / splitter?
A coax combiner / splitter is a passive RF device that merges the outputs of multiple sources onto a single coaxial cable — or splits one coaxial feed out to many. In an HDMI-over-coax system, you use it to combine the channels from several HDMI modulators into one cable that carries your entire custom TV lineup to every TV.
How many HDMI modulators can I combine with one unit?
This combiner has 12+1 ports (13 total), so you can combine the outputs of up to twelve VeCOAX modulators onto a single coaxial output. Need more? Daisy-chain additional combiners to expand the number of ports.
Can I use it as a splitter too?
Yes. Every port is bidirectional, so the same device works as an ultra-low-loss splitter — feed one combined coax signal in and fan it out to multiple TV drops or coax runs.
Does it work with HD and 4K channels?
Yes. The combiner is optimized for low insertion loss across the full TV frequency range so it preserves signal quality for HD and 4K digital TV channels generated by VeCOAX modulators.
Is this a transcoder or a multiplexer?
No. This is a passive RF combiner / splitter. It does not change, encode, or multiplex the signals — it simply combines or splits the RF channels on the coax with minimal loss.
What connector and impedance does it use?
It uses standard 75Ω F-Type connectors and works with RG59 and RG6 coaxial cable — the same cabling already used for cable TV and antenna distribution.
Combine Your Channels. Distribute to Every TV.
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