Cobra MR F45-D

25 Watt High Output Fixed Mount 2-Way VHF Radio with Built-in NOAA Hazards Radio and Dual Watch Mode

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General Features:

  • 25 Watt Class D Fixed Mount VHF 2 Way Radio
  • Selectable High (25 W) or Low (1 W) powered operation for near or far transmissions
  • Sends and receives on all USA, Canadian and International Channels
  • Built-in 10 Channel NOAA weather radio
    • Be prepared for storms and emergencies
    • NOAA (National Oceanic and Atmospheric Administration) warns of hazardous weather
    • Dedicated button allows for one touch operation
    • WX Weather Alert Mode will automatically receive signals and warnings from designated NOAA broadcast stations
    • Ideal for coastal areas or areas with potential for floods
  • Waterproof to 1 meter for 30 minutes - meets JIS7 standards
  • Instant Channel 16/9 mode for quick emergency transmissions
  • Dual Watch mode allows you to monitor 2 channels at once
    • Monitor Channel 16 and one user selectable Channel
  • Scan mode lets you scan all active channels to find transmissions in progress
  • Backlit LCD Screen for clear easy reading
  • DSC (Digital Selective Calling) Distress Button for interference free emergency transmissions
  • Squelch Control automatically filters out weak signals
  • Compatible with optional GPS locator
  • Mounting hardware included
  • Also found as: Cobra MRF45D
  • Dimensions: 6.25" x 2.25" x 7.125"
  • Authorized Internet Dealer
  • 3 Year Manufacturer's Warranty

Product Specifications:

  • General Specs:
    • Number of Channels: All USA, Canadian and International Stations
    • Number of NOAA Weather Channels: 10
    • Channel Spacing: 25 kHZ
    • Modulation: 5 kHZ
    • Input Voltage: 13.8 Volts DC
    • Current Drain (Standby): 200 mA
    • Current Drain (Receiving): 300 mA
    • Current Drain (Transmitting): 5 A @ High Power, 1 A @ Low Power
  • Receiver Specs:
    • Receiver Type: Double Conversion Super Heterodyne
    • Frequency Range: 156.050 - 163.275
    • Sensitivity
      • 20 dB Quieting: 0.35 uV
      • 12 dB Sinad: 0.30 uV
    • Adjacent Channel Selectivity: -60 dB
    • Intermodulation and Rejection: -60 dB
    • Spurious and Image Rejection: -60 dB
    • AF Output: 4 Watts @ 8 ohms

  • Transmitter Specs:
    • Frequency Range: 156.025 - 157.425
    • RF Output Power: 1 or 25 Watts
    • Spurious Emissions: -60 dB @ High Power, -55 dB @ Low Power
    • Microphone Type: Electret
    • Frequency Stability: =/-10 ppm
    • FM Hum and Noise: 40 dB

Radio Specifications

Radio Type
Determines the frequency ranges that the radio operates on. Different spectrum ranges are allotted for each type and each type has its own rules and regulations regarding transmissions.
Intended Radio Use

This is the intended use of the radio.

Car: This means that the radio is for use in a vehicle. These radios usually come with mounting and installation accessories for vehicles. Please verify with the product's description for more detailed information.

Marine: This means that the radio is intended for use on the boat or for marine applications. This means that he radio itself is typically treated for marine environments and includes marine accessories. Please see the product description for more information.

Portable: These radios are intended for use on the go and can be carried in your hand. Some portable radios can be used in other applications, such as on a boat or in a car.

Car / Mobile
Some radios are waterproof and can withstand being submerged in water to certain depths.
Power Output
Measurement of the power output of the radio using. This is determined by measuring the signal strength at the base of the antenna. Each type of radio has a limitation on how high the wattage can be without the need for an FCC license.
25 watts
Primary Color
This is the main color of the item.

Handheld Radio Specifications

Built-In NOAA Receiver
CB radios with this feature have the ability to access local NOAA radio stations for real-time weather reports and updates. CB radios equipped with multiple NOAA channels allow users to select the clearest channel to monitor weather conditions.
Number of Weather Channels
Radios with a built-in NOAA receiver can have multiple weather channels in order to find the clearest channel.
Illuminated / Backlit Display
Some models include a backlit radio display for convenient operation at night. This is an invaluable feature if a radio will be used extensively at night or in dark conditions.
Adjustable Output Power
Allows users to increase or decrease the transmit power of the CB radio. At a higher transmit power the signal will travel farther. In battery powered radios, users may want to lower the transmit power in order to increase battery life.
Squelch Control
Changes the sensitivity of your CB radio to adjust for whatever signal strength you may be receiving. Lower squelch levels will allow you to receive transmissions from a greater distance, but these transmissions will contain more background noise. Higher squelch levels reduce the background noise, but will eliminate some weaker transmissionsl. In effect, it keeps the receiver from constantly having to listen to static and only activates the speaker when a transmission is received.
Voice Activation
Signal Strength Meter
This feature displays the strength of the received or transmitted signal.
Channel Scanning
primarily for recreational purposes, allows you to automatically scan all available CB channels for activity, ensuring you'll know of anything happening on the airwaves.
Dual Watch
Allows you to monitor two channels at once.
Emergency Crank

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider

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Product Summary


Model Number

MR F45-D





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Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Cobra MR F45-D

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Cobra MR F45-D

25 Watt High Output Fixed Mount 2-Way VHF Radio with Built-in NOAA Hazards Radio and Dual Watch Mode


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