SureCall Flare 3.0 Signal Booster Kit with Yagi Outside Antenna

The Flare 3.0’s indoor coverage depends entirely on the strength of the signal outside, where you install the Yagi antenna. The better that signal, the more usable space you’ll get indoors. Here’s a breakdown based on real-world conditions:

• Strong signal (5 bars): Up to 2,500 sq ft
• Moderate signal (3 to 4 bars): Up to 1,500 sq ft
• Weak signal (1 to 2 bars): Up to 250 sq ft
• No signal (0 bars): No coverage
  
  

Actual results will also depend on how well the antenna is aimed, the distance between indoor and outdoor components, and the type of building materials you're working with.

This system supports:

• All phones, hotspots, and cellular-connected devices
• All major U.S. carriers, including Verizon, AT&T, T-Mobile, and UScellular
• Most prepaid and regional carriers that use those same networks
• 4G LTE and 5G signals, on frequencies approved by the FCC
  
  

Supported frequency bands include:

• 700 MHz
• 800 MHz
• 1900 MHz
• 1700/2100 MHz
  
  

Note: The Flare 3.0 is designed for U.S. and Canadian networks. It is not compatible with most international carriers due to different frequency band use in Europe, Asia, and other regions.

Product Highlights

• Boosts both 5G and 4G LTE signals on all major U.S. networks
• Up to 72 dB of gain with strong uplink power for reaching distant towers
• Directional Yagi antenna pulls in weak outdoor signal more effectively than standard antennas
• Integrated indoor antenna simplifies setup with fewer components
• Includes 50 feet of RG6 coaxial cable for flexible placement
• Works with multiple devices at once — phones, hotspots, tablets, and cellular modems
• SureCall mobile app connects via Bluetooth for guided installation and live signal readings

Top Benefits

• Reduces dropped calls and improves voice quality in rooms with poor reception
• Faster data speeds for streaming, browsing, and working remotely
• Reliable coverage in rural and edge-of-network locations, where other systems fall short
• DIY-friendly setup with app support to avoid guesswork during installation

Works across all carriers, so you don’t have to worry about switching networks

• Flare 3.0 signal booster with integrated indoor antenna
• Outdoor Yagi antenna
• 50-foot RG6 coaxial cable
• AC power supply
• Quick setup guide

All necessary components are included for a standard installation. Mounting hardware for the Yagi antenna is included, but you may need a pole or pipe if mounting to a roofline.

Most users install the Flare 3.0 themselves using basic tools. Setup involves three main steps: mounting the outdoor antenna, running the cable inside, and placing the indoor booster where coverage is needed.

Start by finding the spot outside your home where the signal is strongest — usually high on a roof or exterior wall facing your nearest cell tower. The included Yagi antenna is directional, so it works best when aimed directly at the tower. The SureCall app helps confirm the direction by showing real-time signal strength while you test different mounting positions.

Once you’ve found the right spot, mount the Yagi antenna using the included hardware. From there, run the 50-foot RG6 cable down to your indoor space. You can route it through an attic, wall opening, or window gap if needed. Avoid sharp bends and don’t coil extra cable near the booster.

The Flare 3.0 indoor unit should be placed in the area where you need the most coverage. For best results, keep at least 25 feet of vertical separation or 50 feet of horizontal distance between the indoor unit and the outdoor antenna. This helps prevent oscillation, which can cause signal interference and performance loss.

After everything is connected, plug in the booster and use the SureCall app to verify that your antenna is aimed correctly and that you’ve achieved enough separation between components. If needed, adjust the antenna angle slightly and re-check the app to fine-tune performance.

A full installation can usually be completed in under two hours, and the app makes it easy to test your setup before securing cables or drilling permanent holes.