Top Signal HiBoost Marine 4G LTE Cell Signal Booster TS541611: Booster and Marine Antenna

Marine Top Signal HiBoost 4G LTE Cell Signal Booster TS541611

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  • For use while underway
  • Includes marine antenna with 20-foot cable
  • Improves signal 2–5 feet around inside antenna
  • Works with all major cellular carriers for both voice and data


Free lifetime support
SKU: TS541611

Product Description

This product has been discontinued. For an alternative solution, please see our other marine cell signal booster systems.

Features of the Top Signal HiBoost Marine 4G

  • Designed to be used while boat is moving.
  • +50 dB wideband cell signal booster with metal case.
  • Marine-grade exterior antenna with 20 feet of white RG58 coax cable.
  • 2 to 5 feet of improved signal coverage around the inside antenna.
  • Boosts 4G LTE and 3G service for voice, text, and data.
  • Carrier agnostic: Works with Verizon, AT&T, T‑Mobile, Sprint, and other U.S. and Canadian carriers.
  • Boosts cell signal for multiple users simultaneously.

The Marine Top Signal HiBoost 4G cell phone signal booster provides maximum power for boats and vessels that are in motion. Stay connected underway on lakes and rivers and in coastal waters. Experience faster 4G data and fewer dropped calls, undelivered texts, and missed email messages.

Houseboats on Lake Powell, Arizona

Who is the Marine Top Signal HiBoost 4G for?

  • Boaters who need improved cell signal while underway.
  • Boats that need better signal just in a specific area, such as around the helm.
  • Vessels that are used in remote waterways, where cell service is poor.
  • Government agencies (fish and wildlife services, harbor patrols, police and sheriffs departments, etc.).
  • Anyone who needs the best, most reliable cell phone connectivity on the water.

Do-it-yourself installation

You can install the Marine Top Signal HiBoost 4G yourself; it does not require professional help.

You’ll need a standard-size 1-inch × 14 threaded marine mount (not included) for the omni marine antenna. To prevent signal oscillation, attach the marine antenna in a location where there will be at least 15 feet of separation from the inside antenna. Run the 20 feet of RG58 cable to the booster unit, securing the cable to the tower or hull. Mount the inside antenna close to your cell phone. Attach the antenna cables and 12-volt power adapter to the booster.

Please note that the booster unit is not weatherproof. If you intend to operate this system in inclement weather, you’ll need to secure the booster in a water-resistant container.

Marine Top Signal HiBoost 4G setup diagram Typical setup of the Marine Top Signal HiBoost 4G kit (click to enlarge)

Marine Top Signal HiBoost 4G kit contents

This is a complete kit, with everything you need to start getting the best signal in your vessel:

HiBoost Travel 4G LTE C27G-5S booster icon HiBoost Travel 4G LTE cell signal amplifier C27G‑5S
Top Signal marine 4G omni antenna TS210461 icon Marine antenna with threaded ferrule and 20′ RG58 coax cable TS210461
HiBoost Travel 4G LTE C27G-5S patch antenna icon Adhesive-mount inside antenna
HiBoost Travel 4G LTE C27G-5S power supply icon DC power supply
HiBoost Travel 4G LTE C27G-5S magnetic-mount antenna icon Magnet-mount outside antenna
(for automobile use; not needed for boat installation)
HiBoost Travel 4G LTE C27G-5S user manual icon HiBoost Travel 4G LTE user manual

Works with all major cellular carriers

The Marine Top Signal HiBoost 4G works with all major wireless carriers:

  • U.S. carriers, including Verizon, AT&T, T‑Mobile, Sprint, U.S. Cellular, and most others.
  • Canadian carriers, including Rogers, Bell Canada, Telus, Wind, and most others.

It operates on common 4G/3G cellular frequencies.

  • 700 MHz (SMH) bands 12, 13, 17.
  • 850 MHz (Cellular 850) band 5.
  • 1700/2100 MHz (AWS) band 4.
  • 1900 MHz (PCS) bands 2, 25.
Carrier logos for Verizon, AT&T, Sprint, T-Mobile, U.S. Cellular

FCC Notice

For information on federal rules governing the use of consumer cell signal boosters, please see our FCC notice page.

Product Specifications

Outside Antenna:
Omnidirectional marine-mount (×1) / omnidirectional magnet-mount (×1)
Inside Antenna:
Omnidirectional low-profile (×1)
Cable Type:
RG58 / RG174
Connector Type:
50 Ω
+50 dB max
Booster Case Material:
Signal Readout:
LED light

Warranty Information

For warranty information on this product, please see our Top Signal warranty information page.

Questions & Answers