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SureCall AT&T/US Cellular 4G LTE Direct Connect Amplifier [700Amhz ONLY]

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Item Number: 3877



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Fast Facts About This Product:

  • This amplifier is best for: Providing the most signal possible to a single AT&T or US Cellular 4G LTE device that has an antenna port.
  • All-in-One Kit? NO - an antenna and an adapter to connect the amp to your device are required (sold separately), see above
  • Compatibility: AT&T and US Cellular 4G LTE only - this amplifier will NOT work for ANY other networks (not even Verizon LTE - Verizon uses a different portion of the 700mhz frequency for their LTE network; Verizon users should use the CM700V-32 amplifier).

IMPORTANT SIGNAL INFORMATION: If you're purchasing an amplifier for use at one specific location, we strongly recommend doing a site survey first to determine whether the amplifier will help you and to give you an idea of what kind of results you can expect from it.

If your signal is extremely poor (-108db or worse), an amplifier may not be effective - there must be some usable signal available for the amplifier to boost. Conversely, if the signal is too STRONG at your location (-50db or better), the amplifier may shut down to avoid interference with the tower.

Are you stuck in a weak coverage area or traveling in a vehicle and want to improve your signal as much as possible? A good antenna is a must, but if you want the best possible signal, a direct connect signal amplifier is the answer. A direct connect signal amplifier goes in between your external antenna and your adapter cable (which plugs into your mobile broadband device's antenna port) to provide the best possible signal wherever you are.

The Cellphone-Mate CM700A-32 is a high-performance amplifier that boosts the signal to AT&T and US Cellular 4G LTE devices. Combined with a 4G antenna, this amplifier will give you the best possible signal for your AT&T 4G modem. This AC or DC-powered amplifier (AC power supply included, DC power supply available separately) is FCC-Approved, and provides the maximum output power allowed by the FCC for use by non-broadcasters.

Package Includes:

  • CM700A-32 direct-connect amplifier
  • AC Power Supply (DC power supply available separately)
  • 6' RG-58 cable with FME/Female on both sides (to connect your adapter cable to the amplifier)
  • Velcro and Screw Mounting Kit
  • User Manual


  • Frequency Range: Uplink: 728-746 MHz / Downlink: 698-716 MHz
  • Standards Supported: LTE (AT&T and US Cellular only)
  • Gain: 32dB
  • Max Output Power: 3 watts EIRP
  • Impedance: 50ohms
  • Noise Figure: Maximum 5 dB
  • VSWR: Less than 2:1
  • AC Power Transformer: Input: AC110V, 60Hz; Output: DC 6V
  • RF Connectors: FME male
  • Power Consumption: <10W
  • Dimensions: 6" x 4" x 2"
  • Weight: 1lb 13oz

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All Reviews (2)

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Date Added: 09/29/2013 by John L. (Seaview, WA)
We're using this amplifier with a 9.5" Full Band Outdoor Omni 3G/4G Antenna mounted on top of a travel trailer and an AT&T Unite AirCard 770S (mfg. by Sierra Wireless) inside. The LTE signal results at our current location are as follows: WITHOUT this amplifier: -112dB RSRP and 25 signal quality. WITH this amplifier set to full gain (all dip switches off): -77dB RSRP and 62 signal quality. Data speed is significantly faster and very consistent with this amplifier. Overall amazing performance and a great value.

Date Added: 03/12/2013 by Michael C. (North Mankato, MN)
HOLY COW the cellphone-mate att LTE direct connect booster is mind-blowingly good. You guys rock.

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Questions & Answers

Will this work with TMobile as well, or just ATT?
Will I need adapters to use my existing antenna with this amp?
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