SureCall Indoor Panel Antenna MIMO C-Band 3700-4000 MHz (SC-648CBM)

Product Highlights

• Supports C-band 5G frequencies from 3700 to 4000 MHz
• Up to 11.5 dBi directional gain for stronger indoor signal
• MIMO antenna with ±45° polarization
• N-Female connector with 50-ohm impedance
• Directional beam pattern: 65° horizontal and 35° vertical
• Durable UV-resistant ABS housing
• Wall-mountable with included hardware
• Compact size: 7.2 x 6.4 x 2.6 inches
• Works with low-loss SC-400 coax (sold separately)
• Compatible with SureCall C-band booster systems

Top Benefits

• Targets coverage where it’s needed: Directional design helps push signal into dead zones, long corridors, or segmented office areas
• Built for 5G performance: Tuned specifically for C-band, making it ideal for newer 5G installations
• Handles commercial environments: Compact but tough, with materials that hold up in utility rooms and structured wiring closets
• Easy to integrate: Installs cleanly on a wall and connects to standard 50-ohm cabling used in most commercial booster setups

Reduces interference and feedback: With a strong front-to-back ratio and proper spacing, you can boost performance without signal overlap

• SureCall Indoor Panel Antenna (SC-648CBM)
• Wall-mounting plate
• Mounting screws

Supported Devices: All phones, hotspots, and cellular-connected devices

Supported Networks: 5G and 4G LTE (on FCC-approved bands)

Frequencies Boosted: 3700 to 4000 MHz (C-band)

Carriers: Works with Verizon, AT&T, T-Mobile, and UScellular C-band networks. Also supports smaller carriers and MVNOs using the same spectrum.

The SC-648CBM is designed for easy wall mounting on a vertical indoor surface. To get the best performance, mount the antenna at roughly the same height where most mobile devices will be used—typically around head height in a commercial or office setting.

Basic installation steps:

1. Choose a wall that faces the area where you want to improve coverage
2. Use the included plate to mark screw locations
3. Mount the plate with the slide panel facing outward
4. Slide the antenna onto the plate until it locks in place
5. Connect the antenna to your signal booster using low-loss coax cable with N-Male connectors

Installer tips:

• Keep the indoor and outdoor antennas as far apart as possible to prevent feedback
• Always aim the indoor antenna away from the outdoor antenna
• Test different wall placements to find the best signal direction
• Avoid coiling excess cable near the booster or antenna
• Use 50-ohm SC-400 cable or equivalent for best results

This antenna is directional, so small adjustments in aim can make a noticeable difference. Take time to test the layout before finalizing the cable runs.