Channel Master CM-7778HD Review

Michael Iaboni Profile image

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Updated June 27, 2022
86 Expert Rating

You may be thinking that you’re done looking for the Best TV Antenna when you finally buy and install it. But if you want to get even more channels you might want to check out some Best TV Antenna Amplifier too. The Channel Master CM-7778HD is a great choice for its versatility and multitude of features.

Why We Like It – Channel Master CM-7778HD

The Channel Master CM-7778HD is a real tech-hounds digital tv antenna amplifier. It has plenty of settings and variations to customize it to your specific scenario, and it’s absolutely solid construction means you can use it both outdoors and indoors too!

  • Stabilizes Image Quality
  • Weatherproof Ports
  • LTE Signal Filtering
  • Can’t Receive Signals in 4K
  • No Coaxial Cable Included


The Channel Master Amplify Adjustable Gain Preamplifier Professional Outdoor TV Antenna Amplifier improves signal strength and decreases pixelation. Depending on where you live it may not give you more channels but instead may stabilize ones you already have. Or it could do both. There’s no word on if it can receive 4K signals, so please try the DrillTop TV Antenna Amplifier if this is what you’re looking for.

Ease of Install

The Channel Master CM-7778HD Distribution Amplifier comes with everything you need to install it brand new out of the box. One thing it doesn’t come with is a coaxial cable, like the Antronix Four Output Amplifier. It’s not a big deal, but some people really do need it when hooking it up to a TV. But at least you can purchase a coaxial cable in the length you actually need as opposed to it being too long or too short.


The Channel Master CM-7778HD was meant to be used as an outdoor amplifier, but can be used as an indoor one if you please. If you don’t plan on using the amplifier outside, you can also check out the Reliable Cable Product TV Digital Signal Amplifier. The Channel Master is constructed with a die-cast metal housing with weatherproof ports to help it survive outside, so you don’t need to worry. It can survive outdoors for years like a durable satellite antenna such as King Quest Pro Satellite Antenna.


If you’re tech-savvy enough, the Channel Master comes with adjustable settings that allow you to select the appropriate gain required for your specific installation scenario. It also comes with an FM Trap, which will block unwanted FM radio signals which cause interference with UHF and VHF signals, if you want your antenna to specifically get TV channels.


Speaking of filtering, the Channel Master also comes with LTE signal filtering which will stop the antenna from picking up LTE signals, which are becoming more commonplace, which can be the cause of channel loss or pixelation. The Channel Master comes with a one-year warranty, which is nice, and even a 3-day money-back guarantee.

Channel Master CM-7778HD Wrap Up

The Channel Master CM-778HD can be daunting to a newcomer to the digital Tv antenna world. But the features it has will be features that you will want. The proliferation of LTE towers, for example, cause pixelation and channel loss, so an LTE filtering system is absolutely essential.

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