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

SKU: SC-648CBM
$199.00

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Description

The SureCall SC-648CBM is a wall-mounted panel antenna built for indoor use with C-band 5G signal boosters. It’s made to send and receive signal directionally, helping to push stronger coverage into areas where people actually need like offices, hallways, or shared workspaces.

Designed to operate specifically within the 3700 to 4000 MHz range, this antenna is tuned for C-band 5G service used by major U.S. carriers. It supports MIMO setups and connects using standard low-loss coax cable with an N-Female port, making it easy to integrate with compatible booster systems.

With up to 11.5 dBi of directional gain and a focused beam pattern, the SC-648CBM helps target coverage toward problem areas rather than spreading signal in all directions. That makes it especially useful in buildings with tough layouts, interior walls, or specific zones that need a stronger boost.

Whether you’re setting up coverage in a commercial building, retrofitting an older system, or building out a 5G-ready network, this antenna gives you the tools to get reliable indoor signal where it counts.

Highlights and Benefits

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

What’s in the Box
  • SureCall Indoor Panel Antenna (SC-648CBM)
  • Wall-mounting plate
  • Mounting screws

Coverage Area and Supported Carriers

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.

Installation

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.

Specifications
  • SKU
    SC-648CBM
  • UPC
    850043816676
  • Impedance
    50 Ohm
  • Warranty Length
    3-Year Manufacturer's Warranty

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

$199.00

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Ask an Expert

SureCallSignalBooster.com offers product expertise and fulfillment capabilities for all SureCall booster systems, antennas and accessories. As a Certified SureCall Retailer, we only carry authentic, USA-designed and assembled, FCC-approved, and fully-warranted SureCall booster equipment. Our team of experts have been delivering reliable cell signal and exceptional service since 2001, and have many years of experience providing best-in-class cell coverage indoors.