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Standard Horizon GX5500S QUANTUM Commercial Grade Fixed-Mount VHF Radio

  • Includes Class D DSC, GPS Input
  • Remote Mic Capable, Transmit Power: 25 Watt / 1 Watt, Voltage: 13.8 Volts DC
  • Waterproof IPX7 Submersible, Includes PA / Loud Hailer / Fog, Color: Black
  • Item #: 
    Standard Horizon
    Model #: 
    Shipping Weight: 
    6.70 Lbs.
    List Price: 
    Status:      In Stock




    • Standard Horizon GX5500S QUANTUM Fixed-Mount VHF Radio is Commercial grade radio with an alpha-numeric keypad and 30 Watt PA and Hailer with Listenback
    • Includes (4) Pre-programmed fog signals and Listen-Back
    • Removable ClearVoice noise canceling speaker microphone with channel selection and 16/9 key
    • RAM3 second-station mic capable – control all VHF, DSC functions from a second station
    • Intercom between radio and second station RAM3 remote access microphone
    • Front panel speaker microphone can be relocated to rear panel using optional MEK-4
    • Commercial grade ITU-R M493-13 Class D DSC transceiver
    • Dedicated channel 70 receiver built-in for continuous DSC watch
    • Versatile user-programmable scanning, priority scan and Dual-Watch operation
    • USA, Canada, International and NOAA weather channels with audible weather alert
    • NAV mode displays longitude / latitude, position time, SOG and COG when connected to an external GPS receiver
    • One-button access to Channel 16 and 9
    • Oversized rotary channel knob with push-to-enter, backlit LCD display and keys
    • User-customizable soft keys for easy menu operation
    • 3-year waterproof warranty


    • Standard Horizon Model No. GX5500S
    • Color: Black
    • Channels: USA, Canada, International and (10) NOAA weather
    • Transmit Power: 1 or 25 Watts selectable
    • Supply Voltage: 13.8 Volt DC ±20%
    • Current Draw @ 13.8 Volt DC: 1.5 Amp Receive / 5.0 Amp Transmit
    • Water Resistance Rating: JIS-7 Submersible (depth of 3.3 ft. for 30 min.)
    • Operating Temperature Range: -4°F to 140°F
    • LCD Display Size: 2.58" x 1.28"
    • Mount: Bracket or Flush
      • Flush Mount kit MMB-84 Sold Separately
      • Flush Mount Cutout: 8.1" x 2.8"
    • Dimensions (overall): 9.1" W x 3.5" H x 5.9" D

    For further details see Owner's Manual for this product

    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to

    Standard Horizon Deck Horn / Hailer / PA Speaker
    Item #: 251861
  • Waterproof, Applications: Standard Horizon VHF / FM Radios and Loud Hailers
  • Audio Output: 30 Watt Peak, Impedance: 4 Ohms,
  • Dimensions: 5" Round
  •  Include

    Model #:
    Standard Horizon VHF Radio Flush Mount Bracket Kit
    Item #: 255194
  • Applications: Standard Horizon Fixed Mount Radios (Models Listed Below)
  • Designed for Dash or Flush Mounting
  •  Include

    Model #:
    Standard Horizon MLS-300 Marine VHF Radio Remote Extension Speaker
    Item #: 255683
  • Dimensions: 3.75" Diameter
  • Audio Output: 10 Watts Maximum Power, Impedance: 4 Ohm
  • Mount: Surface or Flush (Bracket Included), Color: Black
  •  Include

    Model #:
    Standard Horizon MLS-310 Amplified Marine VHF Radio Remote Extension Speaker
    Item #: 259454SPEBLA
  • Dimensions: 3.75" Diameter, Power: 13.8 Volts DC, Draw: 1.5 Amps,
  • Audio Output: 8 Watts @ 13.8 Volts DC, Includes Volume Control
  • Mount: Surface or Flush (Bracket Included), Color: Black
  •  Include

    Model #:
    Standard Horizon Voice Scrambler
    Item #: 256216
  • For Use With Certain Fixed And Handheld VHF Systems
  •  Include

    Model #:
    Standard Horizon MEK-4 Microphone Extension Kit
    Item #: 252159
  • For Remote Microphone Set-up
  • For Use With GX5000S / GX5500S & CPV550 VHF's
  •  Include

    Model #:
    Shakespeare 4187 Ratchet Mount Antenna Base
    Item #: 252293
  • Type: Surface Mount with 4-Way Ratchet for Deck or Side Mounting
  • Material: Stainless Steel, with Standard 1" -14 Thread Fitting
  • Includes Cable Slot Eliminates Removal of most Factory-Installed Connectors
  •  Include

    Model #:
    Shakespeare 5225-XT VHF Antenna
    Item #: 251525
  • Antenna Length: 8 ft., Band: VHF Marine Band, Sections: 1, Color: White
  • Max. Input Power: 100 Watts, Gain: 6 dB, Bandwidth: 3 MHz within 2.0:1 VSWR
  • Supplied with 20 ft. RG-8/X Cable and PL-259 Connector
  •  Include

    Model #:

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