Atcall 3K

Atcall 3K Cell Phone Booster User Manual

Model: 3K

FCC Approved Cell Phone Signal Booster for Home

1. Introduction

The Atcall 3K Cell Phone Booster is designed to significantly improve 5G and 4G LTE cellular signal strength within your home or office, covering up to 3,000 square feet. It is compatible with all major U.S. carriers, including Verizon, AT&T, and T-Mobile, ensuring reliable voice calls and faster data speeds. Featuring a smart LCD display, this booster provides real-time signal information to assist with optimal installation and troubleshooting.

Atcall 3K Cell Phone Booster kit including the booster unit, outdoor antenna, indoor antenna, and cable.

Figure 1.1: Atcall 3K Cell Phone Booster System Components

2. Package Contents

Verify that all items listed below are included in your package:

  • 1 x Atcall 3K Booster Unit
  • 1 x Outdoor Directional Antenna
  • 1 x Indoor Whip Antenna
  • 1 x 60ft Coaxial Cable
  • 1 x Power Supply
  • Mounting Kits (Booster Wall Mount Bracket, Roof/Pole Mount Bracket)
Diagram showing all components included in the Atcall 3K Cell Phone Booster package with dimensions.

Figure 2.1: Detailed View of Package Contents

3. Setup and Installation

The Atcall 3K Cell Phone Booster is designed for DIY installation. Follow these steps for optimal performance:

  1. Outdoor Antenna Placement: Install the outdoor directional antenna on your rooftop or an elevated location where it can receive the strongest possible signal from the nearest cell tower. The LCD monitor on the booster will help you find the best position.
  2. Cable Connection: Connect the 60ft coaxial cable from the outdoor antenna to the 'Outdoor' port on the 3K Booster unit.
  3. Indoor Antenna Placement: Connect the indoor whip antenna to the 'Indoor' port on the 3K Booster. The booster unit can be placed on a table or mounted on a wall. Ensure there is sufficient separation (at least 20 feet horizontally and 30 feet straight line) between the indoor and outdoor antennas to prevent oscillation.
  4. Power Connection: Connect the power supply to the booster unit and plug it into a power outlet.
Diagram illustrating the recommended separation distances for indoor and outdoor antenna placement.

Figure 3.1: Antenna Separation Guidelines

Images showing the booster mounted on a wall and placed on a table, demonstrating flexible placement options.

Figure 3.2: Flexible Placement Options for the Booster Unit

Video 3.1: Atcall Cell Phone Booster for Home - Installation Overview. This video demonstrates the basic setup and functionality of the Atcall 3K Cell Phone Booster, including how the LCD monitor assists in finding the best signal location.

4. Operating Instructions

Once installed, the Atcall 3K Booster operates automatically to amplify cellular signals. The smart LCD monitor provides real-time feedback on its performance.

4.1. Real-Time LCD Monitor

The color LCD display on the booster unit shows the real-time signal changes and working status for each supported frequency band. This helps confirm proper operation and identify any signal issues quickly.

Close-up of the Atcall booster's LCD screen showing signal strength indicators for different frequency bands.

Figure 4.1: Smart LCD Monitor Display

Detailed view of the HD LCD Display showing uplink and downlink gain, band numbers, and signal strength bars.

Figure 4.2: HD LCD Display Detailed Information

4.2. Carrier Compatibility

The booster supports all major U.S. carriers, improving 4G LTE and 5G data and voice for multiple users and devices simultaneously.

Two women smiling and looking at a smartphone, with logos of various US carriers like AT&T, T-Mobile, Verizon, and Straight Talk.

Figure 4.3: Compatible with All U.S. Carriers

A couple sitting on a couch, both looking at a smartphone, with a graphic indicating improved cellular signal.

Figure 4.4: Enjoy Reliable Cellular Signal

5. Maintenance

The Atcall 3K Cell Phone Booster requires minimal maintenance. Ensure the booster unit and antennas are kept clean and free from obstructions. Periodically check cable connections to ensure they are secure. Avoid exposing the unit to extreme temperatures or direct moisture.

6. Troubleshooting

If you experience issues with your signal booster, refer to the following common troubleshooting tips:

  • Weak or No Signal Improvement:
    • Check the outdoor antenna's direction and position using the LCD monitor to ensure it's pointed towards the strongest signal source.
    • Verify that there is sufficient separation between the indoor and outdoor antennas to prevent signal feedback (oscillation).
    • Ensure all cable connections are tight and secure.
  • LCD Display Issues:
    • If the display is blank, check the power supply connection.
    • Refer to the LCD display for specific error codes or indicators that can guide troubleshooting.
  • Checking Frequency Band: To verify your phone's frequency band for compatibility, use the following methods:
Instructions for checking frequency band on iPhone and Android phones using dial codes and apps.

Figure 6.1: Methods for Checking Frequency Band

For further assistance, Atcall provides professional online tech support. Please feel free to contact us.

7. Specifications

FeatureDetail
BrandAtcall
Model3K
Coverage AreaUp to 3,000 sq. ft.
Supported Frequency BandsBand 12/17, Band 13, Band 5, Band 2/25, Band 4/66
Gain68dB high gain
Compatible DevicesCell Phones (All U.S. Carriers)
Special FeaturesIndoor Whip Antenna (Simplified Installation), LCD Monitor, Outdoor Directional Antenna, Weatherproof
FCC CertificationFCC ID: 2A34B-SFZN005
Item Weight6.63 pounds
Package Dimensions14.17 x 9.37 x 4.57 inches
Date First AvailableMay 15, 2025

8. Warranty and Support

The Atcall 3K Cell Phone Booster is FCC certified (FCC ID: 2A34B-SFZN005), ensuring compliance with regulatory standards. For any technical inquiries, installation assistance, or troubleshooting not covered in this manual, please contact our professional online tech support team. We are committed to providing reliable cellular signal solutions and support.

Image showing the FCC and ISED approval labels on the back of the Atcall booster unit.

Figure 8.1: FCC & ISED Approved

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