Best HDMI RF Modulator – 6 Options To Consider in 2023

Published: Updated: Fact checked by Milan Shah
Best HDMI RF Modulator

An HDMI RF modulator is a device that takes an HDMI input and converts it into an RF (radio frequency) signal that can be transmitted over a coaxial cable. This allows you to distribute HDMI signals to multiple TVs over a single coaxial cable without the need for additional HDMI cables.

HDMI RF modulators are commonly used in commercial settings, such as sports bars, where multiple TVs are used to display the same content. They are also used in residential settings, such as homes with multiple TVs where running HDMI cables to each TV may be difficult or not feasible.

To use an HDMI RF modulator, you connect the HDMI source (such as a cable box or DVD player) to the modulator and then connect the modulator to a coaxial cable. The RF signal can then be distributed to multiple TVs using a splitter.

It’s important to note that not all RF signals are compatible with all TVs, so it’s important to check the specifications of your TVs and the modulator to ensure compatibility. Additionally, the quality of the RF signal may not be as high as a direct HDMI connection, so it’s important to test the setup and adjust settings as needed to ensure the best possible picture quality.

What to Look For In an HDMI RF Modulator?

If you want to purchase an HDMI RF modulator, this guide can assist you in getting the best that can suit your needs. Since HDMI to RF modulators is not that popular, here are a few essential things you may want to check before making that purchase.

Video Quality

When you purchase an RF HDMI modulator, its purpose is to connect it to an older version monitor o TV. Most new devices in the market have a higher video resolution than older television. It would help if you found a high-end modulator that offers high-end video transmission to enable a fascinating video quality after you install a unit.

Added Accessories

There are only a few modulators that incorporate the use of remote control depending on their installation procedure. If you have a large television, it’s impossible to access the on and off switch if you mount the modulator behind it. The remote control element can be handy for an efficient response when linking your devices. 

Type of Connector 

Few modulators are similar. There are multiple different varieties made based on usage and applicability. Some brands only have limited use of applications, while other brands are versatile as they have many sets of applications. If you are unsure which type of RF modulator for TV is best for you, select the one with multiple connectivity options.

Best HDMI RF Modulator Summary

  1. Best Overall: VECOAX MINIMOD -2 
  2. Best Budget: Aoespy HDMI RF Modulator Coax Adapter
  3. Best Compatibility Design: Multicom 1080p HDMI to Coax Digital Modulator
  4. Best Feature Rich: Broadcast HDMI to Coax Modulator
  5. Best Premium: Multicom 1080 HDMI digital RF Modulator
  6. Best Size and Portability: Fosa Digital RF Modular AV

Best Budget HDMI RF Modulator

Aoespy HDMI RF Modulator Coax Adapter

Aoespy HDMI RF Modulator Coax Adapter

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Coming on first is the RF HDMI modulator from coax, among the market’s most compatible and compact devices. The device supports a high video resolution of 1080p, which is fantastic because it is economically prized. 

You can connect the Aoespy modulator device with various standard media such as PlayStation, Apple TV, and Xbox. The modulator supports RF output for older television models such as CRT TVs and has an HDMI coaxial cable that converts signals into VHF analog output. The modulator can also control features such as zoom function and amplitude control.


  • Support 1080p video quality
  • Features HDMI, RF, and USB ports
  • It is simple to adjust contrast and brightness features
  • Has both HDMI to VHF and HDMI to RF analog conversion


  • Has remote support
  • Compact design making it portable
  • Economical


  • Lacks all features

Check the Aoespy HDMI RF Modulator Coax Adapter on Amazon

Best Overall HDMI RF Modulator



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While several premium options are prevalent in the market, VeCOAX MiniMod can be the best pick based on its various features. With this RF HDMI modulator, you can get 1080p video resolution which is ideal for most applications. It has easy installation and operation as you only need to plug the cables into the correct ports.

Another critical component of the VECOAX is the Dolby audio support. The audio feature and a high video quality output can give you an incredible gaming experience even on a CRT TV. You can also access free-to-air channels via the modulator by connecting an antenna.


  • has HD 1080p video resolution
  • Has Dolby audio processing
  • Has up to 19.5 MHz frequency operation capabilities


  • Supports quality audio and video
  • Highly versatile
  • Suitable for many applications


  • Expensive 

Check the VECOAX MINIMOD -2 on Amazon

Best Compatibility Design HDMI RF Modulator

Multicom 1080p HDMI to Coax Digital Modulator

Multicom 1080P HDMI to Coax Digital 100 Encoder Modulator J.83B QAM 64 : J.83B QAM 256 RF or ATSC Output

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The Multicom modulator is affordable in its price range as you can get various essential features. Some features you can get include AC3 audio output. The audio element is common in high-end video content. 

The RF modulator is uncompromising on its video resolution, as you can get image clarity even in video content. You will not require a set-top box installation as it is compatible with all North American systems and Mexico.


  • Supports up to 1080p video resolution
  • Has AC3 audio quality
  • 30 to 951 MHz frequency support
  • It has 1080p resolution from Channel 2 to 135


  • Has LCD support to help you with additional information
  • An exceptional device with the price range
  • Eliminate the use of set-top boxes and media players


  • Has no remote access 

Check the Multicom 1080p HDMI to Coax Digital Modulator on Amazon

The Best Feature Rich HDMI RF Modulator

Broadcast HDMI to Coax Modulator

Digital RF Modulator Audio Video

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This modulator is for more experienced users as it contains many features. You can easily connect the unit via Thor’s proprietary broadcast GUI, which is among the best you can get in the market. Though the unit might set you back financially because of its costs, some features might be the only suitable option. 

The HDMI to RF COAX modulator has a compact LCD to easily access and show you the channel number you are watching. The unit has a warranty of one year, assuring its dependability and quality. The Thor broadcast modulator is an all-purpose device that has MPEG2 encoding with Dolby audio processing to provide exceptional functioning. 


  • It supports 1080p video quality
  • LCD at the front
  • It has one year warranty
  • Supports AC3 Dolby audio processing
  • Supports 57 to 803 MHz frequency


  • Versatile in terms of applications
  • Very liable modulator
  • Features inputs and outputs ports for HDMI and RF connection 


  • An overkill unit for only primary applications 

Check the Broadcast HDMI to Coax Modulator on Amazon

Best Premium HDMI RF Modulator

Multicom 1080 HDMI digital RF Modulator 

Multicom 1080P HDMI to Coax Digital 100 Encoder Modulator

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This unit offers 1080p video resolution and can support a maximum of 134 channels maintaining good quality video resolution. It is easier to select various options on the unit. Common output varieties include ATSC, J.83B QAM, and DVB-T. You can also get quality audio performance from the RF HDMI module because of incorporating the AC3 audio feature.

Multicom has to enable a more straightforward setting of the HDMI to digital RF modulator by incorporating a rack mount of the accessory kit with its packaging. The unit also contains a small LCD screen on the modulator to assist with a more straightforward setup and display of crucial information. 


  • Supports multiple outputs
  • Supports up to 1080p video resolution
  • Has front LCD panel for easier access


  • Supports up to 134 channels 
  • The LCD panel is Helpful
  • It comes with an installation kit 


  • Costly compared to similar options

Check the Multicom 1080 HDMI digital RF Modulator on Amazon

Best HDMI RF Modulator for Size and Portability

Fosa Digital RF Modular AV

Digital RF Modulator Audio Video AV inputs into RF & TV Output Signals AV RF AV TV Converter , VHF UHF Signal Amplifier for Satellite Receivers

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If you are unsure which HDMI works best with your devices and need a premium option, try Fosa Digital RF Modulator. If the device integrates fine, you will have saved lots of expenses as the device is only a fraction of other premium units. 

This modulator supports both VHF and UHF operating frequencies which suit many applications. The unit supports up to 868 MHz frequency making it a perfect option for users. The modulator also has an ergonomic design and is easy to install.


  • It supports up to1080p video resolution 
  • Cost-effective for a premium HDMI to RF modulator 
  • You can adjust output levels
  • It has an ergonomic design 


  • The best option for basic requirements
  • Highly ergonomic design
  • Compatible with various devices such as cameras and gaming units


  • It does not support demodulation features 

Check the Fosa Digital RF Modular AV on Amazon

Best HDMI RF Modulator FAQs

What Is a Coaxial Cable?

This is a type of cable made of copper that is used to conduct electrical current. It has an insulator shield covering the exterior. The coaxial cable also contains braided metal mesh that eliminates signal transmission interference. 

Coaxial cables are standard in most homes to facilitate digital TV connections. For a successful HDMI to RF coax TV modulator connection, your unit must contain a coaxial cable port. 

Do I need a demodulator with an RF HDMI modular?

A modulator is used to transmit high-frequency digital signals over analog ports. A demodulator works in reverse to restore the signals of previous modulated waves. Depending on your application, you may or may not require a demodulator to maintain an excellent RF modulator picture quality. Most times, it is not required.

How does an RF modulator function?

A modulator unit works by simply converting HDMI to digital RF signals. A modulator device can help you connect new-generation devices to devices requiring analog. Connections using more straightforward words. You will access high-quality audiovisual source media easily. Even though there are many devices, the basis of the RF modulator is the same. 

Final Thoughts

As you have noted, many devices can enable HDMI to RF connection. Along with the best in each category of Best RF HDMI modulator, we have listed the best features you can get from each unit. 

If you are new to modulators, we recommend starting with a basic and affordable brand that will be easier for you to operate. As you progress and require additional features, you can upgrade and contact your brand’s customer service center for any assistance in installation and use. 

Related: HDMI vs. DisplayPort vs. DVI vs. VGA: Quick Comparison

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