Cart 0

zBoost Trio SOHO Xtreme AT&T Signal Booster | ZB575X-A

zBoost Trio SOHO Xtreme AT&T Signal Booster | ZB575X-A

  • $499.99 USD
Best Price Guarantee. [1, 2, 3]
  • Product Url
  • This field is required. Please enter a value.

  • This field is required. Please enter a value.

  • This field is required. Please enter a value.

  • This field is required. Please enter a value.

  • *These fields required. [2] May exclude very large size items because we offer free shipping so our actual cost may be too high due to the size/ weight of item to be able to match the price. [3] Request must be made before order placement. Not valid after order placed. Other restrictions may apply. Please contact us for details.

Buy Now, Pay Later with No Interest if paid in full within 6-12 months. Choose Klarna payment option at the checkout for details of this, and other long-term low-interest financing options.

Free Lifetime Support. SKU / Model: ZB575X-A

Best Price Guarantee [1 2 3]

Consider all-carrier USA building or in-home/office cell phone signal booster kits for Verizon, AT&T, T-Mobile, Sprint, and all others:
USA Home, Office, Building Cell Phone Boosters.

Consider all-carrier Canadian building or in-home/office cell phone signal booster kits for Rogers, Telus, Bell, Freedom Mobile, and all others:
Canada Home, Office, Building Cell Phone Boosters.


Call for FREE consultation:


Need installation quote, or help with designing a custom solution? Submit a request for quote.

  • Description
  • Reviews
  • Questions & Answers
  • Make An Offer
  • Warning


Product Description

zBoost TRIO SOHO Xtreme ZB575XA - AT&T 4G LTE data plus voice and text, covers up to 5,500 sq. ft.

  • Boosts Talk, Text, 3G & 4G LTE Data for AT&T cell phones.
  • For Home or Office (up to 5,500 square feet).
  • Up to +68 dB Gain.

Wi-Ex zBoost TRIO SOHO Extreme solves missed and dropped calls inside your larger residential spaces. The ZB575X-A boosts AT&T 4G LTE as well as voice and text for all major carriers. The zBoost ZB575X-A captures the marginal-to-reliable cellular signal you have outdoors and rebroadcasts it indoors, up to 5,500 square feet, so you can enjoy clearer, faster and more reliable service without interruption.

Everything you need is included: amplifier base unit, indoor antenna, power supply, 35 ft. and 15 ft. of RG-6 cable, window-entry cable, high-gain external antenna, and mounting hardware.

Benefits Include:

  • High performance tri-band signal booster - coverage up to 5,500 sq. ft. (up to 77 dB system gain).
  • Ideal for larger residential spaces that have reliable outside signal or for smaller spaces that have weaker outside signal.
  • Reduces dropped and missed calls and provides faster 4G data performance for multiple simultaneous users.
  • Boosts performance on all make & model cell phones and mobile devices.
  • Compatible with mobile phones and devices operating on AT&T 4G LTE, CEL (800 MHz) and PCS (1900 MHz).
  • Automatically operates at maximum gain – no manual adjustments needed.
  • Extends phone battery life - phone uses less power when the indoor signal is stronger.
  • Easier to set up – window entry cable included.
  • Designed in Silicon Valley – Made in North America.

Which carriers does it work for?

  • 4G LTE: AT&T Wireless.
  • 3G: AT&T, Verizon, T-Mobile, Sprint, and all other US and Canadian carriers.

What exactly does this cell phone signal booster kit include?

  1. zBoost Trio Soho Xtreme ZB575X-A Cell Phone Amplifier or Repeater.
  2. zBoost interior Inside Antenna.
  3. zBoost exterior External Antenna.
  4. zBoost Power Supply cord.
  5. zBoost 35 feet White RG-6 Coaxial Cable (Low Loss RG6 75 Ohm coax cable).
  6. zBoost 15 feet White RG-6 Coax Extension Cable.
  7. zBoost Window-entry Cable.
  8. zBoost ZB575X-A Installation Manual or Instructions.


zBoost TRIO SOHO Xtreme boosts AT&T 4G LTE and 800/ 1900 MHz for all carriers up to 5,500 square feet. It is ideal for larger homes and buildings. Includes directional external antenna CANT-0042, omni internal antenna CANT-0039, and RG-6 cable.

Setup overview:

Everything you need is included: amplifier base unit, indoor antenna, power supply, 35 ft. and 15 ft. of RG-6 cable, window-entry cable, high-gain external antenna, and mounting hardware.

Before installing, please note the following important factors in determining your zBoost performance: 

  • At least 15 vertical feet is needed between the External Antenna (receives the outside signal) and the Indoor Antenna (rebroadcasts the signal indoors). Separation less than 15 vertical feet will result in decreased performance. See illustration below.
  • Keep the External Antenna at least 3 feet above any metal.

STEP 1: Mount the External Antenna. Choose a location for the antenna using your cell phone to determine the area of strongest signal.

The coverage your zBoost booster provides is largely determined by the strength of signal received by the External Antenna.

To get the maximum benefit, you will want to take special care in pointing the External Antenna in the direction of best signal for your wireless service provider. If
you are unsure of the direction of your provider's closest network tower, see the Antenna Aiming section of the User Manual or you may wish to use a YX699 RF signal meter to help during this process. Once you have determined the optimum location and angle, connect the L-bracket to the antenna and secure the antenna bracket to a mast (not provided) using the provided antenna hardware.

STEP 2: Place the zBoost Base Unit where you want to create a Cell Zone.

Connect the Indoor Antenna to the Base Unit and place it where you need signal. For the widest possible signal area, position the Base Unit near the middle of a room. You may also mount it on an interior wall by first removing the bracket, screwing the bracket to a wall (screws not included), then snapping the Base Unit back in place keeping the Indoor Antenna vertical. The Base Unit uses an omni-directional Indoor Antenna that delivers signal in a circular pattern around the antenna.

The zBoost TRIO SOHO Xtreme requires at least 15 feet of vertical separation between the Base Unit and the External Antenna. Generally, increasing this distance (up to 40 feet) will increase the performance and decreasing the distance will limit the performance.

Keep the Base Unit off the floor and at least 2 feet away from other cords, metal objects or other wireless devices such as wireless routers or wireless access points. The zBoost TRIO SOHO Xtreme performs best when there are no obstructions between the zBoost Base Unit and your mobile device.

STEP 3: Run the provided coaxial cable between the Base Unit and External Antenna.

Connect the two provided RG-6 coax cables (35 ft. & 15 ft.) using the provided window-entry cable. Use the attached cables to connect the Base Unit and External Antenna through a window, positioning the window-entry cable at the window closing. See other cable setup options in the User Manual. Should additional cable length be needed, 15 ft. extensions (Part YX030-15w) are available. Note: Cable runs longer than 75 ft. are not recommended, unless upgraded to RG-11. RG-11 can be run up to 120 ft.

STEP 4: Connect the zBoost Base Unit to the provided power supply and plug into a power outlet.

When your zBoost system is in place and fully connected, walk throughout your home and verify that you are able to reliably place calls. If the signal strength has improved, your zBoost is working. Remember, coverage varies based on outdoor signal level, building construction, and antenna placement. Coverage in adjoining rooms will be reduced by walls and ceiling/floors.

Upon initial power up, the LED will cycle RED, GREEN and ORANGE for 30 seconds. After, a series of GREEN flashes will indicate the quality of your setup. Following this, a solid GREEN light indicates normal conditions. If it is not solid GREEN, follow the instructions in the Base Unit LED Indicators section. Adjustments may be needed to optimize performance. If you find the increased signal coverage is acceptable, however, no additional adjustments are needed. See the LED chart on the installation tips page for more information.

Should you desire to improve coverage, you may:

  • Relocate the External Antenna in order to capture a better signal –higher is usually better.
  • Increase the distance between the Base Unit and the External Antenna.
  • Purchase an upgrade indoor antenna.

Product Specifications: ZB575X-A



1850 to 1990 MHz

System Gain

77 dB

PCS Bands Supported

A, D, B, E, F, C





824 to 894 MHz

System Gain

69 dB

Cellular Bands Supported

A, B, A’, B’





704 to 746 MHz

System Gain

68 dB

Band Supported





 Power Consumption

3W standby; 7W max signal - 2.5A Max

 Wall Supply Input; Voltage

100-240VAC 50-60 Hz; 5.0VDC

 System Certifications

FCC Parts 15 & 20, Industry Canada

 Base Unit Size and Weight

5” x 7” x 1.25” – 9 oz.

 Operating Conditions

Indoor Use Only (40°- 105° F)

 Coverage (Open Areas)

up to 5,500 sq. ft.

Consumer Alert:
Consumer Alert


Customer Reviews

Questions & Answers


Ask a Question
  • What is the Difference between zBoost ZB575X-V and ZB575X-A?

    ZB575X-V is compatible with 3G & 4G Verizon network and ZB575X-A is compatible with 3G & 4G AT&T network.

Data Sheet / User Guide

Make An Offer

  • This field is required. Please enter a value.

  • This field is required. Please enter a value.

  • This field is required. Please enter a value.

  • This field is required. Please enter a value.

  • Input Correct Captcha


Note: For any signal booster to help, outside signal strength must be at least -110 dB or there must be a clear line of sight to a cell tower that is within twenty miles. Before ordering, please check outside signal level in decibels or ensure that you can make and hold a phone call at any good spot outside where you can mount an exterior antenna. Square footage stated in signal booster listings is based on good signal outside. If it is any weaker, the boosted sq. ft. area will be considerably lower, accordingly.

Kevin K. of Anderson, California gave the following review:

Website is easy to use with plain straight forward info but could have had more on testing signal strength to make sure you get a strong enough booster.

Therefore, please note that stated sq. ft. coverage is based on good signal outside. For best results: If outside signal is weak, we suggest choosing the next higher sq. ft. coverage kit. If outside signal is very weak, we suggest choosing the kit with even more higher sq. ft. range bracket. Basically, higher the sq. ft. bracket, the more powerful the signal amplifier with greater Gain as well as higher uplink and downlink output power.

If outside signal is too weak (weaker than -110 dB), submit request for cell coverage solution assessment. Upon receipt of questionnaire, we will perform residential or business site survey. This will help us determine the system that is needed to improve cell coverage. Then, we will create system design using that system such as femtocell, active or hybrid distributed antenna system (DAS), or other carrier feed signal enhancing method available that will work at your signal-challenged location. Finally, we will schedule for installation after equipment and installation service quote has been approved by you, or your company.

For non installation-included kits: Most home / office / building cell signal booster kits only include bracket to mount exterior antenna on outside wall, edge of roof, or existing pipe up to 2 inches in diameter. Mounting pole not included with most kits, unless stated specifically that it is included for free. Therefore, a mounting post must be purchased separately if you will require it to mount exterior antenna.

Related Products
zBoost Trio SOHO Xtreme AT&T Signal Booster | Z...