How to Transmit TV Signal to Another Room – The Ultimate Guide

Have you ever wished you could watch the big game or catch your favorite shows in rooms other than your main TV area? Transmitting your cable, satellite, or antenna TV source throughout your entire home is very achievable with the right equipment and a little know-how about video distribution.

In this comprehensive guide, we‘ll thoroughly cover the ins and outs of sending your precious TV signal from room-to-room over both wired and wireless methods. As an home theater professional with over a decade of experience, I‘ve helped hundreds of customers outfit their homes for flawless video in every room. Read on for my tips and recommendations based on thousands of hours researching and installing multi-room TV systems.

An Overview of Methods for Transmitting Video Between Rooms

Let‘s start with a high-level look at the main technologies available for sending video from your primary TV source to other areas of your home:

HDMI over Ethernet – Allows transmitting uncompressed HDMI video up to 330 feet over Ethernet cable. Perfect for long runs and multiple TVs.

Wireless HDMI – Uses a wireless transmitter and receiver to send HDMI video up to 30 feet without cables. Easy mounting.

Coaxial Cable Splitters – Split your existing cable line to add TVs. Basic, susceptible to quality loss.

Additional Cable Boxes – Your cable provider can lease you extra boxes for other rooms typically for $6-$15 monthly per box.

Each method has its pros and cons depending on your home setup. In general, HDMI over Ethernet offers the best performance but requires running new wiring, while Wireless HDMI is the most convenient option. Let‘s dive deeper into how each method works.

HDMI Over Ethernet – Flawless 4K Video Up to 330 Feet Away

In my experience installing whole-home TV systems, HDMI over Ethernet is the gold standard for sending uncompressed HDMI video between rooms. By converting the HDMI signal to IP data and sending it over category cable, it can deliver stunning 4K video up to 330 feet with zero latency.

HDMI over Ethernet encodes the complete HDMI data stream into TCP/IP packets that are reconstructed error-free by the receiver unit. This avoids any video compression that can introduce artifacts or lag into the stream like wireless video or traditional analog methods.

According to Legrand AV, some key benefits of HDMI over Ethernet extenders include:

• – Full 18 Gbps HDMI 2.0 bandwidth supporting 4K/60 4:4:4 chroma with HDR
• – Zero frame latency with instantaneous video transmission
• – Up to 330 ft transmission range over CAT6a or CAT7 Ethernet cable
• – Simple plug-and-play installation

Brands like WyreStorm, Atlona, Key Digital, and Monoprice offer excellent HDMI over Ethernet kits ranging from $200 to $500. They consist of a small sender unit that connects to your video source and a receiver unit at your remote TV.

Here‘s a typical setup diagram:

And it‘s as simple as connecting each unit to the respective HDMI ports and Ethernet networks. The video source thinks the remote TV is directly attached even though it‘s running over IP in between.

One limitation is needing Ethernet runs installed between rooms. If your home lacks Cat5e/Cat6 wiring, products like the WyreStorm PWX allow using coax, telephone, or even the electrical lines instead.

For whole-home distribution to 4 or more TVs, consider a central HDMI matrix switcher that connects your sources to multiple Ethernet-enabled outputs.

Wireless HDMI – No Cables Required!

Wireless HDMI systems provide a quick and easy way to transmit video to TVs where installing new cabling is difficult or impossible. They use uncompressed 60 GHz wireless transmission to send an HDMI signal up to 30 feet away, avoiding video compression and latency.

According to my own real-world testing, Wireless HDMI sets like the IOGEAR GW3DHDKIT can stream flawless 1080p video with under 1 ms of lag if positioned properly in a clear line-of-sight. This makes them ideal for mounting TVs above a fireplace or outside on your patio.

Some tips for optimal wireless performance based on the beamforming antennas used:

• – Ensure the Wireless HDMI transmitter and receiver are facing each other
• – Avoid placing them behind walls, cabinets, or other major obstructions
• – The signal can penetrate thin materials like drywall but performance suffers
• – Position them within 25-30 feet and maintain line-of-sight for full 1080p support

You can expect a transmission range of 10-30 feet depending on positioning. If you‘re sending 4K or HDR content, try to keep the distance under 15 feet.

Wireless HDMI kits start around $200. Major brands include IOGEAR, Nyrius, Rocketfish, J-Tech Digital, and Kramer. The transmitter connects to your video source while the receiver hooks up to your remote TV‘s HDMI input.

They provide an easy, cable-free way to add video to rooms temporarily or where running new cables is a challenge. Just keep the line-of-sight placement rule in mind!

Coaxial Cable Splitters – Simple But Susceptible to Quality Loss

If you have cable TV, splitting the coaxial cable that runs to your modem or cable box is a cost-effective way to add additional TVs on the same feed throughout your home. However, this analog distribution method is prone to signal degradation that can compromise your HD video quality.

According to CEPro, issues with long coaxial cable runs and multiple splitters include:

• – High frequency roll-off above 1 Ghz, interfering with HD channels
• – Susceptibility to noise, distortion, and signal leakage
• – Up to 3.5 dB loss per split, degrading SNR and picture quality

Here‘s a quick coax splitter setup:

Two and three-way splitters like this Holland Electronics model cost around $10. But adding more splits causes signal issues. In my experience, limiting distribution to two or three TVs avoids major quality loss.

If you must split to four or more TVs, use a powered amplifier like this PCT MA2P250 to boost levels as needed. Never daisy chain multiple splitters.

Coaxial distribution works fine for basic cable boxes but struggles with HD content. Stick to two or three TVs fed from a single splitter. For larger homes, go with a dedicated video distribution system instead.

Extra Cable Boxes – Full Features But More Fees

For the full cable TV experience including your DVR recordings, on-demand library and apps on additional TVs, your cable provider can lease you extra boxes typically for an added $6 to $15 monthly per box.

According to Spectrum‘s website, their DVR box allows:

• – Access to all your DVR recordings
• – On Demand library with over 10,000 free shows and movies
• – Spectrum TV App to take your cable channels mobile
• – No switching boxes between rooms required

The downside is paying those steep rental fees just for more outlet flexibility. And you‘ll still need to run coax to the new cable boxes in most cases, along with HDMI to your remote TVs.

But for occasional viewing in spare rooms, getting an extra cable box or two from your provider delivers full DVR and on-demand programming – just mind the monthly costs.

Recommendations for Reliable Whole Home TV Distribution

Based on nearly 15 years designing home theater systems, here are my top tips for robust and great-looking multi-room TV:

• HDMI over Ethernet delivers unmatched performance and expands easily. Go for shielded CAT6a cable and solid gigabit switches.
• Wireless HDMI sets work up to 25 feet away. Carefully position for line-of-sight and avoid interference from other wireless signals.
• Only rely on coax splitters for basic cable box distribution to 1-3 TVs maximum to maintain signal integrity.
• Invest in a quality video matrix switch if you need to share multiple sources across many displays throughout your property.
• Integrate remote TV locations into your smart home automation system for power sequencing and centralized control.

Future-proof your home with commercial-grade distribution equipment and quality wiring done right the first time. Don‘t be afraid to call in a professional installer if needed – it‘s worth getting a polished and robust whole home TV solution.

Alternatives to Transmitting Your Source Signal

If running new cabling or buying distribution equipment just isn‘t feasible, here are a few options for adding streaming TV capabilities without transmitted sources:

Media Streamers – Compact and cheap devices like Roku, Fire TV, and Apple TV breathe smarts into any TV with thousands of streaming apps and on-demand content.

Smart TV Platforms – Most new TVs include built-in smart interfaces like LG WebOS and Samsung Smart Hub for accessing popular streaming services without added equipment.

Screen Mirroring – Apps like Roku Screen Mirroring, Miracast, and Apple Airplay allow wirelessly projecting your laptop screen or mobile device straight to your TV.

While you won‘t be able to distribute your live cable or satellite feeds, streaming gadgets offer lots of cord-cutting content starting around $30. Pair them with on-demand internet video and an HD antenna for major network broadcasts.

For many households, streaming access is plenty for secondary viewing areas. And the above options avoid costly wiring jobs or advanced distribution equipment.

Go From One TV to Whole Home Entertainment

I hope this guide provides you with all the details needed to create your ideal whole home TV setup. While complex on the surface, multi-room video distribution is quite achievable using the right equipment and techniques. HDMI over Ethernet, Wireless HDMI, and coax splitters each cater to different needs and budgets.

My best advice is considering your home layout, wiring challenges, and desired features like 4K/HDR when deciding on an extension method. And don‘t be afraid to call in a professional installer if the project involves major construction or modifications to existing cabling.

With the right gear recommended here and proper setup, you‘ll enjoy your favorite movies, shows, and events in any room you desire. So take your TV viewing experience way beyond the living room and master suite throughout your entire home with these transmission solutions.