TV Antenna Booster 4



Channel Master's TV Antenna Booster 4 is an easy to install, four output professional-grade TV antenna booster / distribution amplifier. The TV Antenna Booster 4 can be used to split a TV antenna signal into four outputs and is ideal for connecting multiple TV's to a TV antenna without losing signal. This is the only high quality four output TV antenna distribution amplifier on the market specifically optimized for use with over the air TV antennas and includes built-in out of band filters and a 4G/5G LTE interference filter. The heavy-duty weatherproof housing and premium internal components will accommodate installation outdoors as well as indoors. (not compatible with cable or satellite).


TV Antenna Booster

What’s Included

TV Antenna Booster 4 Distribution Amplifier
Power Adapter
Coaxial Cable
User Guide
1-Year Limited Warranty


Four Amplified Output Ports
Splits TV Antenna to Four Rooms while Boosting Signals. (Replaces Standard Four-Way Splitters and Improves Signal)
Designed and Optimized Exclusively for TV Antennas (Not Compatible with Cable and Satellite)
Built-in Out-of-Band Filters Including FM and 4G/5G Signals (600 Mhz)
Passive Signal Backup - Passes Signal Without Amplification During Loss of Power
Heavy Duty All-Metal Housing
Powder Coated and Weather-Sealed Housing for Superior Corrosion Protection
Excellent Surge Withstand Capability
Compatible with All TV Antennas
Supports Digital Broadcast and HD Signals
Supports ATSC 3.0, NextGen TV and 4K Broadcast when Available

Tech Specs

Electrical Specifications

Power Supply Input Voltage 110-240v, AC ~ 50/60Hz, 200mA (Max)
Power Supply Output Voltage +13.2v DC, 500mA, 6.6W (Max)
Frequency Bandpass 54-88MHz, 174-216MHz, 470-608MHz. (Filters / Signal Attenuation is Applied to Frequencies Outside of these Bands)
Gain +7.5dB per Output
Noise Figure Typically less than 2dB
Operating Temperature -40° to +60°C
Max Input Level 10dBmv
Max Output Level 21.5dBmv
Size (Product) 4.25 x 5.25 x 1.0 in
Size (Packaging) 8.0 x 4.5 x 2.5 in
Weight (Product) 9.5 oz
Weight (Packaging) 1.25 lb

Choose a Model

2-Port Distributes TV Signals to 2 TVs
4-PortDistributes TV Signals to 4 TVs
8-Port Distributes TV Signals to 8 TVs

Customer Reviews

Based on 110 reviews
Excellent Product!

Installed in minutes. Heavy duty metal chassis and solid construction. Works as described.

Mark in FL
If you have a long antenna cable run to your TV's buy this!

I have been using a Channel Master CM-2018 antenna & Amplify Adjustable Gain Preamplifier for 2.5 years. We are way out on the fringe of a major metro and, while I have been happy with the number of stations we can receive, sometimes we have had some pixelation. Our 3 TVs are over 50 feet from the IT cabinet where the splitter was. I decided to try this distribution amp to compensate for the line loss and IT WORKS. Our TVs do have signal strength indicators and I can see an improvement of an additional 1 to 3 bars on the meter -- enough to alleviate pixelation.
NOTE 1: This unit will not bring in stations that you are not already receiving. This unit prevents line loss and preserves & amplifies the signals that you do receive and gets the signals to the other side of the house. NOTE 2: Be sure to carefully follow the installation instructions if you are also running a powered preamp at your antenna location or you could "null out" the preamp. I have a Channel Master antenna, preamp & distribution amp. Don't skimp. 5-Stars!

Very well made

Hopefully this will fix the rest of a weak signal on a few channels. I added an antenna booster last month, but I think the problem was inside the house. It is working very well so far.

Massive boost

Received the CM-3424 Booster 4 last evening (05/24/2024), after trying a different manufacturer's brand. What a massive difference. On re-scan and with everything else being exactly the same, I went from 392 signals being found previously to 462 (OTA and Cable) on my Samsung TV. The quality on all channels is crystal 'break up or pixelation anywhere). This was money well spent. The product feel substantial in hand and is well-built. Had I known I could receive this type of signal quality, I'd have quit cable/sattelite TV years ago.

Fingers crossed that this splitter lasts!

I have recently replaced a 4 port Antronics powered splitter with Channel Master. I have had 2 Antronics devices in as many years, but they stop working about 1 year in. I have them grounded to the house ground with a heavy gauge copper wire, also have them plugged into a surge protector, but they failed. Hoping that this new Channel Master device lasts longer. So far so good.