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The FLATenna+ Amplified indoor TV antenna consists of our popular and highly regarded FLATenna indoor antenna and our MicroAmp indoor antenna amplifier. The FLATenna is already regarded as one of the best performing indoor TV antennas on the market. The FLATenna+ will increase signal strength providing increased channel reception and reducing issues with channels having poor signal quality. The included amplifier (MicroAmp) has been fine-tuned for optimal performance when used with the FLATenna. If an indoor antenna is your only option, the FLATenna+ is one of the best options on the market. It is easy to install and provides the flexibility of adding amplification to boost signals in indoor environments where OTA signal is hard to receive.

FLATenna+ was designed to be a low-cost yet high-performance amplified indoor TV antenna. Channel Master customers have had great success with our original FLATenna and the FLATenna+ is an enhanced version that adds amplification. The included amplifier (MicroAmp) uses a USB type connection to power the amplifier directly from the USB port on your TV or from a standard electrical wall outlet. The antenna is easy to install and includes adhesive tabs that make it simple to attach it to the wall without making holes or damaging the wall. The FLATenna+ has an increased reception range of up to 50 miles in areas with strong signals.

What’s Included

FLATenna (CM-4001HDBW)
MicroAmp (CM-7776)
Power Inserter (CM-7777HDXPI)
Mini USB Power Cord
USB Power Adapter
Coaxial Cable
Adhesive Strips for Mounting
Instruction Sheet
1-Year Limited Warranty


Reception Range Up to 50 Miles
Type Indoor
Reception Pattern Omni-directional
Amplifier Included Yes
Installation Wall, Window
Paintable Match Your Home's Décor (Non-Metallic Paint Only)

Tech Specs

Antenna Specifications

VHF Gain 3 dB
UHF Gain 6 dB
Impedance 75 Ohm

Amplifier Specifications

Impedance (Input and Output) 75 Ohm
Connector F-type
Frequency Range 50MHz~700MHz
Gain 10dB
Noise Figure 3.5dB
UL listed Yes
RoHS Compliant Yes
Input Return Loss <-6.5
Output Return Loss <-10
Size (Product) 13.5L x 10.75H x 0.75W in
Weight (Product) 1 lb 3.5 oz


Choose a Model

35 MI Range Antenna
50 MI Range Antenna

Customer Reviews

Based on 253 reviews

I purchased this and have been using it for about a week now. Somewhat better than the one it replaced (which was an RCA flat antenna). Price is reasonable and the product works better than most in it's price range.

Nothing, then let there be light

I live in an area that is a "Tweener". Close enuff to a major city, but JUST far enuff away, that its on the outer reaches of normal antennas.

I placed a TV in my basement and will only use it for streaming, but wanted to see if I could get any local channels.

Tried several, some much more expensive than the Channel Master. Got very little.

Then I saw an independent review of the Channel Master so I gave it a try.

Hooked it up and was surprised on the # of channels I could get. I was STILL unable to get all the local channels, but I write that off to geography, BUT was able to get several. Of all the antennas, this one worked the best and was VERY reasonably priced

Best of Them All

I've tried a couple of different free channel antennas - one bought just this year, and could only get some of the channels some of the time. I gave up on the one in the attic, then bought a POS with a typical made-up name from the far east which quit working completely after a while. The Channel Master FLATenna+ has to be as good as it gets. I get all the channels available here, clearly, all the time - with the antenna sitting against a wall upstairs out of sight. FLAT out the Best - with quality RG6 detachable cables even. :)

D. Fields
Tried so many indoor antennas. This one works!

It works great. Pulls many OTA channels I never expected. I like the white/black option as well. I’ll be purchasing a second for another TV.

Surprisingly, one of, if not the best, indoor TV antennas on the market

We use the antenna when we go on vacation to places that don’t provide cable. We also use it for our portable TV at the beach. We tried a number of antennas, and this one appears to be the best. Then, it’s also flexible since you can place it anywhere. It comes with long strands of high-quality RG-6 cable.