INVCALL F10-PL
INVCALL Cell Phone Signal Booster (Model F10-PL) User Manual
Model: F10-PL | Brand: INVCALL
1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your INVCALL Cell Phone Signal Booster, Model F10-PL. This device is designed to enhance 4G LTE and 3G cellular signals within your home, covering areas up to 4,500 sq ft. It supports frequency bands 2, 4, and 25, making it compatible with major U.S. carriers such as Verizon, AT&T, and Sprint. The booster features a 70dB dual-band cellular repeater and is FCC approved.
For optimal performance, please read this manual thoroughly before installation and operation.
2. Key Features
- High Compatibility: Supports bands 2, 4, and 25, compatible with all U.S. carriers including Verizon, AT&T, and T-Mobile. Amplifies 4G LTE/3G GSM/2G signals for multi-user and multi-room coverage.
- Smart LCD Display: Touch-sensitive screen for real-time operational status monitoring. Built-in AGC (Automatic Gain Control) function intelligently adjusts signal strength for optimal performance.
- Smart App Integration: Provides precise cell tower location, real-time frequency band and signal strength monitoring, step-by-step installation video guides, and access to technical support.
- Simple Installation: Includes all necessary tools and instructions for setup. Outdoor antenna aims towards signal towers for precise reception.
- Exceptional Service: FCC-certified with lifetime technical support from INVCALL.
3. Package Contents
Verify that all items listed below are included in your package:
- Booster (1 unit)
- Outdoor Antenna (1 unit)
- Indoor Antenna (1 unit)
- Long Cable (1 unit)
- Short Cables (2 units)
- 30cm Window-Crossing Cable (1 unit)
- Power Adapter (1 unit)
- Instruction Manual
- Installation Accessories (mounting brackets, screws, cable management tape, waterproof tape)

Figure 3.1: Package Contents
4. Setup and Installation
Proper installation is crucial for optimal performance. Follow these steps carefully. For a visual guide, refer to the official installation video below.
Video 4.1: INVCALL F10 Cell Booster Installation Guide. This video provides a step-by-step visual walkthrough of the installation process for the INVCALL F10 Cell Booster, covering mounting antennas, routing cables, and connecting the booster.
4.1. Pre-Installation Check
- Verify Frequency Bands: Ensure your phone's frequency bands (2, 4, 25) are supported by the booster. You can check this using the "Signal Advisor" app (for Android) or by dialing *3001#12345#* and checking "Band Info" (for iPhone).
- Identify Strongest Outdoor Signal: Use the "Signal Advisor" app or your phone's field test mode to locate the nearest cell tower and determine the direction of the strongest outdoor signal.

Figure 4.1: How to Check Frequency Bands
4.2. Mount Outdoor Antenna
- Assemble the mounting bracket to the outdoor antenna.
- Mount the outdoor antenna at the highest possible location above the roofline, ensuring it is pointed towards the direction of your carrier's nearest cell tower. Avoid mounting it directly under eaves or in locations that obstruct signal reception.
- Securely fasten the antenna.

Figure 4.2: Outdoor Antenna Placement
4.3. Route Cable into Your Home
- Connect the long cable to the outdoor antenna.
- If needed, use the provided window entry cable to route the cable through a window frame without drilling. Connect the long cable to one end of the window entry cable, and a short cable to the other end.
- Wrap waterproof tape around all outdoor cable connections to protect them from rain and erosion. Use cable management tape to organize and secure the cables.

Figure 4.3: Cable Routing Diagram
4.4. Mount Indoor Antenna
- Find a vertical surface or wall within your home where there are no materials that could obstruct signals.
- Secure the mounting bracket to the wall using the provided screws.
- Slide the indoor antenna onto the mounting bracket.
- Connect the short cable from the window entry cable (or directly from the outdoor antenna if no window entry cable was used) to the indoor antenna.
- Important: The indoor panel antenna should be facing the area where signal is needed most and should be positioned as far away as possible from the outdoor antenna to prevent oscillation.

Figure 4.4: Indoor Antenna Placement
4.5. Connect the Booster
- Mount the booster on a wall or place it on a stable surface.
- Connect the cable from the indoor antenna to the booster's port labeled "INDOOR".
- Connect the cable from the outdoor antenna to the booster's port labeled "OUTDOOR".
- Connect the power adapter to the booster and then plug it into a power outlet.
- A green light on the booster's LCD display indicates that the booster is working correctly.

Figure 4.5: Booster Connection Diagram
5. Operating Instructions
5.1. Monitoring with Smart LCD Display
The booster's touch-sensitive LCD screen provides real-time information on its operational status. You can monitor signal strength, gain, and other parameters directly from the display. The built-in AGC function automatically adjusts gain to maintain optimal signal performance.

Figure 5.1: Smart LCD Display in Operation
5.2. Using the Smart App ("Signal Advisor")
Download the "Signal Advisor" app from Google Play or the App Store for enhanced control and monitoring. The app offers:
- Cell Tower Location: Precisely locate nearby cell towers.
- Real-time Monitoring: View frequency band and signal strength in real-time.
- Installation Guides: Access step-by-step video guides.
- Technical Support: Connect with professional technical support.

Figure 5.2: Signal Advisor App Interface
6. Maintenance
The INVCALL Cell Phone Signal Booster is designed for minimal maintenance. To ensure continued optimal performance:
- Regular Inspection: Periodically check outdoor cable connections for any signs of wear or damage. Ensure waterproof tape remains intact.
- Cleanliness: Keep the booster unit and indoor antenna free from dust and debris. Use a soft, dry cloth for cleaning.
- Environmental Protection: Ensure the outdoor antenna remains securely mounted and free from obstructions like tree branches.
7. Troubleshooting
If you experience issues with your signal booster, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No signal improvement or weak signal. |
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| Booster not turning on. |
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| Dropped calls or slow data. |
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For further assistance, utilize the "Signal Advisor" app's technical support feature or contact INVCALL customer service.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | INVCALL |
| Model Number | F10-PL |
| Wireless Communication Standard | Radio Frequency |
| Frequency Band Class | Dual-Band |
| Frequency Bands Supported | 1700MHz, 1900MHz (Bands 2, 4, 25) |
| Compatible Devices | Verizon, AT&T, Sprint (all U.S. carriers) |
| Range | Up to 4,500 square feet |
| Main Booster Gain | 70dB Max Gain with N Female Connectors |
| Outdoor Antenna Gain | 7-9dBi Gain with SMA Female Connector |
| Indoor Antenna Gain | 6-8dBi Gain with SMA Female Connector |
| Connector Type | N-female |
| Power Supply | Input: AC 100-240V, Output: DC 5V/1A |
| Color | White |
9. Warranty and Support
The INVCALL Cell Phone Signal Booster (Model F10-PL) comes with a 2-year manufacturer's warranty. INVCALL provides lifetime technical support for every user, ensuring a professional and reliable after-sales experience.
For technical assistance, troubleshooting, or warranty claims, please contact INVCALL customer support through the "Signal Advisor" app or visit the official INVCALL website.
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