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zBoost SOHO ZB545M Dual Band Cell Phone Signal Booster

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  • zBoost SOHO ZB545M Dual Band Cell Phone Signal Booster (ZB545M)
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  • zBoost SOHO ZB545M Dual Band Cell Phone Signal Booster (ZB545M)
  • zBoost SOHO ZB545M Dual Band Cell Phone Signal Booster (ZB545M)
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Product Description

Manufacturer Discontinued

The zBoost SOHO Max boosts cell phone signals for voice calls and text for all major carriers. The zBoost SOHO Max captures the reliable cellular signal you have outdoors and rebroadcasts it indoors, up to 3,500 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, 15 ft. and 35 ft. of RG6 cable, flat window entry cable, external antenna, and mounting hardware.

Benefits Include:

  • High performing dual band signal booster - coverage up to 3,500 sq. ft. (up to 69 dB system gain)
  • Ideal for residential spaces that have reliable outside signal
  • Reduces dropped and missed calls and can provide faster 3G data performance for multiple simultaneous users
  • Boosts performance on iPhone™, Samsung™, Android™ and other phones and mobile devices
  • 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

Setup Overview:

The package includes everything you need: base unit, indoor antenna, power supply, one 15 ft. and one 35 ft. RG-6 cable, flat window entry cable, external antenna and mounting hardware. The omni-directional external antenna receives signals from multiple cell towers.


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.
    • Keep the External Antenna at least 3 feet above any metal.


FIRST: Mount the External Antenna.

Choose a location for the External Antenna using your cell phone to determine the area of strongest signal - typically found outside, above the roofline or in an attic. The antenna must also remain at least 3 feet from any metal.

Keep in mind that the coverage zBoost provides is largely determined by the quality of signal received by the External Antenna. If your best signal is one bar, your coverage will be limited to one small room.

SECOND: 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 provided) then snapping the Base Unit back in place keeping the Indoor Antenna vertical. This Base Unit uses an omni-directional antenna that delivers signal in a circular pattern around the antenna.

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. zBoost Max performs best when there are no obstructions between the zBoost Base Unit and your mobile device.

Remember, the zBoost Max 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 zBoost performance.

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

Connect the two provided RG-6 coax cables (35 feet & 15 feet) 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 User Manual.

FOURTH: 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 30 seconds, 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 in the user manual. Adjustments may be needed to optimize performance. If you find the increased signal coverage is acceptable, however, no additional adjustments are needed.


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