Channel Master TV Antenna Booster 4-4-Port TV Antenna Distribution Amplifier, Built-in LTE Filter, 7.5dB Gain, Compatible with Non-Amplified TV Antennas, Increases Signal Strength, Indoor/Outdoor
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Availability:
In Stock.
Arrives
Wednesday, Sep 17
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Style: 4-Port
Features
- Enhanced Replacement for Ulta-Mini Model CM-3414
- 4 Output Ports - Splits TV Antenna Signals to Four Rooms While Boosting Signals. (Replaces standard four-way splitters and improves signal)
- Works With All Indoor or Outdoor TV Antennas - Can Be Installed Indoor, Outdoor or in Attic Due to its Compact Size and Heavy-Duty Weatherproof Housing.
- Designed and Optimized Exclusively for TV Antennas (Not Compatible with Cable and Satellite TV Signals)
- Improves Signal Strength, Decreases Pixelation and May Increase Number of Channels
- Since 1949, Channel Master has been a leader in TV antenna technology, proudly serving customers with innovative solutions and unmatched quality. As a US-based company headquartered in Arizona, we are committed to delivering superior products and exceptional customer service.
Item dimensions L x W x H: 4.25 x 5.25 x 1 inches
Voltage: 13.2 Volts (DC)
Manufacturer: Channel Master
Maximum Supply Voltage: 240 Volts (AC)
Minimum Supply Voltage: 1.1E+2 Volts (AC)
Item dimensions L x W x H: 4.25 x 5.25 x 1 inches
Voltage: 13.2 Volts (DC)
Manufacturer: Channel Master
Maximum Supply Voltage: 240 Volts (AC)
Minimum Supply Voltage: 1.1E+2 Volts (AC)
Mounting Type: Surface Mount
Brand: Channel Master
Number of Channels: 4
Output Power: 1.65 Watts
Package Type Name: Retail Box
Specification Met: Ul
Supply Current: 200 Milliamps
Material: Metal
Global Trade Identification Number: 41
UPC: 020572034241
Product Dimensions: 4.25 x 5.25 x 1 inches
Item Weight: 11 ounces
Item model number: CM-3424
Date First Available: May 10, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 1-Port (Pre-Amp)
This powered TV amplifier works extremely well. At high gain, it increased the number of digital channels received from 20 to 38 and significantly improved picture quality to cable channel level. The device offers 2 levels of amplification: low and high gain. High gain provided the best results for me given my antenna being located in the attic and the distance to the broadcasting towers (45-55 miles). It was easy to install and very well made. I highly recommend the product.
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Reviewed in the United States on July 16, 2025 by Mickey
Style: 1-Port (Pre-Amp)
Brought in the weaker signals. It is well constructed and built to last. It was easy to hook up and once connected it worked.
Reviewed in the United States on July 25, 2025 by Dragonryder 75
Style: 4-Port
This amp works very well to extend the reception of the passive antenna at our rural home. We still have 3 open outputs for the bedrooms and kitchen and we'll get to those soon. This product is built to last a lifetime with quality materials and it definitely does the job as advertised.
Reviewed in the United States on July 8, 2025 by Lawrence Tvorak
Style: 1-Port (Pre-Amp)
I live between two major cities. towers are 45 miles north and 65 miles south. Had no issues with north tower but the south tower station faded in and out. Inserted this amp and all station from south come in great. I get over 200 channels with great picture. This device helped my reception significantly. Happy with this product an recommend it to a friend.
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Reviewed in the United States on September 2, 2025 by Jerry
Style: 4-Port
Pros: Signal Boost: Enhances TV signals, improving reception and picture quality Multiple Outputs: Comes with multiple output ports, allowing distribution to several TVs Weather-Sealed: Built to withstand various weather conditions, making it suitable for both indoor and outdoor installations Supports Digital and Analog Signals: Works with both digital and analog broadcasts Easy Installation: Plug-and-play setup with clear instructions. Cons: Limited Gain: The amplification might not be sufficient for extremely weak signals
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Reviewed in the United States on October 22, 2024 by Chris the Buyer
Style: 1-Port (Pre-Amp)
Am using this in front of an HDHomerun tuner with a cheap outdoor directional antenna and it helps a lot with the signal reception in a rural area with few obstructions. Am able to pick up a 5 kilowatt transmitter at roughly 40 miles. Interestingly, it works better when installed directly in front of the tuner instead of being in close proximity to the antenna. Would purchase again if the need arose.
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Reviewed in the United States on July 13, 2025 by elaboratech
Style: 1-Port (Pre-Amp)
Prior to installing this preamp, I was getting 136 channels on my HDHomeRun. Not all 136 channels were watchable though. I'm roughly 35-50 miles away from the towers. Reception mapping tools online show my reception will be "fair" or "weak" on basically all channels. My antenna is a Range Xperts Long Range antenna. I have a relatively short cable run (about 25ft) inside to the HDHomeRun. First, I'll note you need an extra coax cable than what comes with this kit. It includes 1 coax cable, but since you need to use their powered splitter, it requires another cable. I had to order a new cable just to try this preamp. Anyway, I installed it as the instructions show and did a scan. I got 20 channels with high gain. I switched it to low gain and got around 40 channels. All the channels I tried with the preamp were glitchy, even the ones that were solid before. Side note: the LED indicator light is supposed to change from green (low gain) to red (high gain) but mine stayed green. I noticed another review that mentioned the same. I tried researching my issue and the only conclusion I came to was that this preamp adds too much gain to my signal and overwhelms the HDHomeRun tuner. This doesn't make a lot of sense since the signal strength is only "fair" for most channels. Maybe the definition of "fair" is too vague. It'd be helpful if the manufacturer specified the conditions when it's appropriate to use this preamp. Not only is it expensive, but it typically takes most people a lot of time to add or change their antenna setup considering when done right, they are high off the ground and not easily accessible. Based on other reviews, this preamp seems to work for the most part. However, it obviously didn't work for me and in fact, made my reception way worse. I wish other reviewers would list important details, like how far their towers are, their cabling setup, etc. I sent this back for a refund.
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Reviewed in the United States on February 11, 2025 by Anthony
Style: 1-Port (Pre-Amp)
My old booster quit working so I went to Walmart and bought a $30 one. I got 33 channels that would break up all the time. I then installed the channel master and I jumped to 77 channels that are locked on , Rock solid. It was money well spent.
Reviewed in the United States on August 4, 2025 by MM