ZB585X-A (Discontinued)

ZB585X-A (Discontinued)

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

Setup overview:

Everything you need is included: amplifier base unit, indoor antenna, power supply, 50 ft. of RG-6 cable, high-gain external antenna, and mounting hardware.

zBoost TRIO Xtreme REACH AT&T Signal Booster Setup Illustration

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, see the installation tips page 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 bracket of the antenna and secure 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 Xtreme REACH 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 Xtreme REACH 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 External Antenna to the Base Unit using the provided 50 ft. of RG-6 cable. 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 in the User Manual or 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.
Package Contents
zBoost TRIO Xtreme REACH AT&T Tri-band Signal Booster

Base Unit and Indoor Antenna

Power Supply

Power Supply

Coaxial Cable (RG-6, 50 feet)

External Antenna

Product Specifications: ZB585X-A



1850 to 1990 MHz

System Gain

78 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.


This is a CONSUMER Device.  
BEFORE USE, you MUST REGISTER THIS DEVICE with your wireless provider and have your provider’s consent. Most wireless providers consent to the use of signal boosters. AT&T, Sprint, T-Mobile, Verizon and 90 additional carriers have already given consent for all consumers to use this device. Some providers may not consent to the use of this device on their network. If you are unsure, contact your provider.
You MUST operate this device with approved antennas and cables as specified by the manufacturer. Antennas MUST be installed at least 20 cm (8 inches) from any person.
You MUST cease operating this device immediately if requested by the FCC or a licensed wireless service provider.
WARNING. E911 location information may not be provided or may be inaccurate for calls served by using this device.
FCC contact information: www.fcc.gov/signal-boosters/registration