SmoothTalker Stealth Z6

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Product Description

The SmoothTalker Z6 72dB Signal Booster kit increases 2G/3G/4G/LTE signal on all US and Canadian carriers, except Sprint band 26 (lower 800MHz) and band 41 (2500 MHz). It is best suited to urban or suburban areas and areas where existing outside signal is moderate to strong. If existing outside signal is weak, you may wish to use the SmoothTalker Stealth X6.

This smart, self-regulating booster is equipped with dynamic adaptive gain control to allow maximum performance for clear reception. The amplifier has LED level indicators to make installation straightforward and effective. The LED console also has a manual control override. Signal gain is improved with automatic oscillation control and network overload protection, to guarantee maximum gain and coverage.

Features and Benefits

  • Recommended for areas within 10 mi. (15 km) of the cell tower
  • Boosts all 4G LTE and 3G signals for all networks
  • Improves voice calls and increases data speed for all cellular devices
  • Installs quickly and easily
  • Indoor antenna mounts direct to the amplifier
  • Reduces dropped calls
  • STEALTH TECH keeps the booster working for optimal gain and power levels
  • Self regulating, with no ongoing maintenance required
  • FCC and Industry Canada Approved
  • 3 year Warranty
  • Made in North America

This kit includes inside and outside antennas, amplifier, and power supply. The unit comes with sturdy long lasting cast aluminum housing.

Outside Antenna

The outside antenna is a wide band directional panel antenna suitable for both indoor and outdoor use. A directional antenna is stronger than an omnidirectional antenna and so can pick up outside signal from further away. It needs to be pointed in the direction of the nearest cell tower. The antenna has 20’ of cable attached. The antenna comes with an adjustable mounting bracket made of weather proof impact resistant plastic. It includes stainless steel screws and double sided tape to mount to walls or windows.

Inside antenna

The inside antenna is a wide-band omni directional antenna for use with the amplifier unit. The “blade” style antenna is mounted directly to the inside antenna connector of the booster. Omni-directional antennas broadcast and receive signals from all sides. They are designed for central locations with 360º coverage.


The Stealth Z6 comes with Pro-X RG-6 quad shield cable for maximum performance. The cable lengths included are 2x30FT.

How it works

1 - Outdoor antenna

The outdoor antenna receives and transmits signal to nearby cellphone towers. Outdoor antennas can be either directional or omni-directional.

2 - Cellular amplifier

The amplifier (or "repeater") boosts the signal coming to and from and going to the cell phone tower. The "gain" of the amplifier describes how strong the amplification is - you'll see that word scattered across our product pages.

3 - Indoor antenna

The indoor antenna rebroadcasts the signal inside the building. Some kits have more than one indoor antenna to help distribute the signal.

how a cell phone booster works


The coverage area you can expect from any signal booster kit depends on the signal strength outside the building.

Outdoor Signal Estimated coverage area
Strong outdoor signal (5 bars) up to 12,000 sq. ft. coverage
Medium outdoor signal (3-4 bars) up to 3,300 sq. ft. coverage
Weak outdoor signal (1-2 bars) up to 750 sq. ft. coverage


The SmoothTalker Stealth Z6 is compatible with the following networks:

Carrier Supported services Unsupported services
Verizon 2G/3G Voice + Data 4G LTE
AT&T 2G/3G Voice + Data 4G LTE
Sprint 2G/3G Voice + Data 4G LTE
T-Mobile 2G/3G Voice + Data 4G LTE

The SmoothTalker Stealth Z6 kit is also compatible with Canadian networks, though they are not listed above. Check our international carriers page for more information.

Supported frequency bands (MHz): 698-716 / 728-746 / 746-757 / 776-787 / 824-849 / 869-894 / 1850-1910 / 1930-1990 / 1910-1915 / 1990-1995 / 1710-1755 / 2110-2155


Like almost all of our products, the SmoothTalker Stealth Z6 can be installed by anyone who feels comfortable doing simple home repairs and running cabling. If you’re not comfortable doing that kind of work, you might consider finding a local electronics installer or asking a friend.

Unlimited free technical support:

Anytime you purchase from Waveform, you get unlimited free technical support from our signal experts. Whether it’s installing a kit or troubleshooting a problem, we’re here. In over 11 years of being in business we’ve helped over 25,000 customers install kits and improve their signal.

Have a question now? Call us from 7am to 5pm PST: 1-800-761-3041.


Dimensions L 5.0” x W 4.75” x H 1.25” (inch)
Frequency 698-716 / 728-746 / 746-757 / 776-787 / 824-849 / 869-894 / 1850-1910 / 1930-1990 / 1910-1915 / 1990-1995 / 1710-1755 / 2110-2155
Gain 72 dB
Noise <4 dB
Output power 0.7 watts EIRP
Connector type F connectors
Cable length 2 x 30'
Cable type RG-6
Coverage 750 sq ft (1 coverage with weak signal)
3300 sq ft (2 coverage with medium signal)
12000 sq ft (3 coverage with strong signal)

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