ANTOP “Big Boy” AT-400BV Outdoor HDTV Antenna | Smartpass Amplified
(10 customer reviews)


• New Generation digital tech design: matches mechanical antennas
• Enhancer Rods to strengthen VHF reception
• UV coating, weather resistant finish
• Whole-house solution: Can feed multiple TVs
• Smartpass technology amplifies range from 70 to 85 miles
• 4G LTE Filter: blocks unwanted 3G and 4G signals
• Multi-directional reception for weak signal strength areas
• Easy home exterior installation: desktop, wall, roof, balcony
• Size: 22 X 10 X 4.7 inch

Out of stock

AT-400B description


Outdoor HDTV Antennas Redefined Bringing aesthetically clean design, new digital tech and crystal-clear TV reception to your home.

Introducing the ANTOP “Big Boy” Outdoor HDTV Digital Antenna, AT-400BV

The perfect combination of classic Yagi antenna engineering and new digital technology.
Features a signal range of up to 70 miles, a multi-directional pattern, and receives free local Over-the-Air digital TV signals,
from networks such as ABC, CBS, NBC, PBS, Fox, Univision, and others.
Includes VHF Enhancer Rods to strengthen VHF reception.
AT-400B description

Enjoy a lifetime of free HDTV family entertainment.

AT-400B description
AT-400B description

VHF Enhanced Rods

Enhance signal reception


Outdoor Antenna

AT-400B description

Simple Set-up

The simple set-up design enables you to quickly install and easily connect within minutes. The “Big Boy” offers an installation kit and table top stand for multiple positioning options.
AT-400B description

Durable Exterior & Weather Resistant

UV coated, weather resistant exterior design combined with anti-interference internal tech
protects signal reception to provide clear pictures and full channel capacity even during inclement weather.
AT-400B description

Enjoy TV without a subscription, and no monthly fees

The ANTOP Flat Panel “Big Boy” is the easiest way to get a wide range of free HDTV channels. Plug and play. Enjoy crystal-clear TV reception.
AT-400B description

Stylish Design

Flat Panel “Big Boy”, exactly what you need and nothing you don’t. It’s sleek and compact design blends in with the interior or exterior of your home.
AT-400B description


Combining style and the latest in digital antenna tech to create a crystal-clear HDTV viewing experience.
AT-400B description

A Keeper

Engineered to pick up both UHF and VHF frequencies in difficult reception areas and powerful enough to feed multiple TVs throughout your home.
AT-400BV description
Introducing the ANTOP “BIG BOY”
Outdoor HDTV Antenna, AT-400BV
The perfect combination of design and new digital technology engineering. Sleek and compact, keeps you connected to all the local TV content you want.
AT-400BV description
AT-400BV description
AT-400BV description
AT-400BV description
AT-400BV description
AT-400BV description
AT-400BV description
AT-400BV description
AT-400BV description





Indoor, Outdoor

Signal Strength

Weak Signal Areas

Reception Pattern



Smartpass Amplified

Frequency Range

87.5-230MHz, 470-700MHz


10dB or 33dB

Max Output level




Power Supply

DC12V via power adapte

Cable Length


Working Temperature Range

-104 to 140 ℉



Product Series

Flat Panel



9.26 lbs


10.82 × 6.49 × 22.44 in

Customer Reviews

4.9 out of 5 stars

10 reviews

Let us know what you think...

One review with a 4-star rating
  1. Cody Brown

    4 out of 5 Better than expected!

    Cody Brown

    I recently upgraded my outdoor OTA antenna as I was getting low signals with certain channels. I am 59 miles from the broadcast location (for almost all channels according to online info) and do no have a great line of sight. I was getting 34-44 signal strength before I upgraded to the AT-400BV. After I upgraded, and pointed as closely as possible to the broadcast location (was not able to point exactly where it needs to be), my signals went up greatly. I now get 53-74 for a signal and all the channels are perfectly clear HD. A great antenna. It is light, so I was able to mount it on the side of my house, rather than the roof. Would recommend someone research how they plan to mount it as it may require additional equipment. I already had an antenna pole on the side of my house, so was able to simple adjust the mount and put this antenna on (even with its large size).

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