Mounting and Powering the Radio

Antenna Requirements and Attachment

Installation and Start-Up

NOTE

All wiring is best kept as short as possible. If the power leads must be

Installation and Start-Up

Antenna Requirements and Attachment

Antenna Requirements

•

extended, use a high-quality, marine-grade cable sized for up to 10 amps of current. To minimize voltage drop, choose a wire gauge as follows:

Length

Wire Gauge

Up to 1.5m(4.9ft)

1.6 mils(#14)

 

 

Up to 3.0m(9.8 ft)

2.0 mils(#12)

 

 

Up to 5.0m(16.4 ft)

2.6 mils(#10)

 

 

Up to 6.0m(19.7 ft)

3.3 mils(#8)

Your CobraMarine VHF radio requires an external marine antenna

to send signals into the air and to receive them. The radio is arranged to use any of the popular marine VHF antennas, but it is up to you to choose which antenna to use.

Since it represents the link between your radio and the outside world, Cobra suggests you purchase the best quality antenna, coaxial cable and connectors you can. This is best accomplished with the advice and guidance of a knowledgeable dealer who can assess the variables involved with your particular boat and preferences.

WARNING

Compliance with FCC requirements for Radio Frequency Exposure is the responsibility of both the antenna installer and the radio operator.

Safe Maximum Permissible Exposure (MPE) Radius

To avoid health hazards from excessive exposure to RF energy, FCC OET Bulletin 65 establishes an MPE radius of 10 ft (3 m) for the maximum power of your radio with an antenna having a maximum power gain of 9 dBi.

This means that all persons must be at least 10 ft (3 m) away from the antenna when the radio is transmitting.

Installation Requirements

■An omnidirectional antenna with a gain not greater than 9 dBi must

be mounted at least 16.4 ft (5 m) above the highest deck where people may be during radio transmissions, measured vertically from the lowest point of the antenna. This provides the minimum separation distance to comply with RF exposure requirements and is based on the MPE radius of 10 ft (3 m) plus the 6.6 ft (2 m) height of an adult.

■For vessels without structure to mount the antenna as described in A, it must be mounted as follows AND all persons must be outside the

10 ft (3 m) MPE radius during radio transmissions. The antenna must

be mounted so that its lowest point is at least 3.3 ft (1 m) vertically above the heads of all persons during radio transmissions.

 

 

 

 

18 English

Nothing Comes Close to a Cobra® 19

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Cobra Electronics MR F80B-D owner manual Antenna Requirements and Attachment, Length Wire Gauge, Installation Requirements
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MR F80B-D specifications

The Cobra Electronics MR F80B-D is a compact and feature-rich fixed mount VHF marine radio designed specifically for boating enthusiasts and maritime professionals. Renowned for its robust construction and innovative technology, this radio ensures reliable communication over marine channels, even in adverse weather conditions.

One of the standout features of the MR F80B-D is its built-in GPS, which provides real-time location tracking. This functionality is crucial for ensuring safety on the water, allowing users to quickly and accurately communicate their position in case of emergencies. The built-in GPS also supports DSC (Digital Selective Calling), which is an essential safety feature that enables users to send distress signals with just a push of a button, instantly alerting nearby vessels and coast guards.

The Cobra MR F80B-D is designed with user-friendliness in mind. Its large, easy-to-read display ensures that critical information is visible, even in bright sunlight. The intuitive navigation menu allows users to switch between channels and settings with ease. Its robust weatherproof construction guarantees continued operation in harsh marine environments, protecting it from saltwater, humidity, and extreme temperatures.

Additionally, the MR F80B-D incorporates a noise-canceling microphone that enhances voice clarity, ensuring that communications are crisp and clear. It features 10 NOAA weather channels, providing real-time weather updates, helping users stay informed about changing weather conditions while on the water. The built-in dual watch feature allows simultaneous monitoring of two channels, ensuring that no important communications are missed.

For those who need to stay connected to their devices, the MR F80B-D comes equipped with a USB charging port, making it straightforward to charge smartphones or other devices on board. The radio operates on both 25 watts and 1 watt, allowing users to select the appropriate power level based on their needs and proximity to other vessels or coastal facilities.

In conclusion, the Cobra Electronics MR F80B-D is a versatile and reliable marine radio that offers a combination of advanced features, including built-in GPS, DSC functionality, and a user-friendly interface. Its durability and ease of use make it an excellent choice for both recreational boaters and maritime professionals, ensuring secure and effective communication on the water.
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