Bedienungsanleitung Cobra MR F57B E (Seite 14 von 47) (Englisch)

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External Devices

And Connections

Nothing Comes Close to a Cobra®23

22 English

External Devices

And Connections

External Devices And Connections •

Your CobraMarine VHF radio is set up to connect auxiliary devices for navigation,

convenience, and added versatility. As is the case with the antenna, choosing these

devices is best done with the advice and guidance of a knowledgeable dealer.

Standard connectors are provided on the front and back of the transceiver.

External Speaker (Not Included)

An External Speaker can provide greater volume to hear messages than the speaker

incorporated in the CobraMarine microphone/speaker.

To Install An External Speaker:

1. Connect the wires to the External Speaker as follows:

Orange wire - +Positive connection

Black wire - -Negative connection (Black wire is common shared -Negative for

the External Speaker and PA output)

2. Make sure to solder, crimp, or twist the wires together firmly and use shrink

tubing or electrical tape to waterproof the connection.

Public Address Speaker (Not Included)

At times, it may be handy to hail other boats or give instructions to line handlers

on the dock. Your CobraMarine VHF radio can be switched to operate in the Public

Address mode through an attached PA speaker.

To Install A Public Address Speaker:

1. Connect the wires to the External Speaker as follows:

Red wire - +Positive connection

Black wire - -Negative connection (Black wire is common shared -Negative for the

External Speaker and PA output)

2. Make sure to solder, crimp, or twist the wires together firmly and use shrink

tubing or electrical tape to waterproof the connection.

Installation And Start-Up Installation And Start-Up

Wiring Located at Back

of Radio

Wiring for External and

Public Address Speakers

Global Positioning System (GPS) Device (Not Included)

Your Cobra Marine radio does not include a built-in GPS receiver. After connecting an

external GPS receiver, your position will be continuously indicated on the LCD and,

most importantly, it will be included automatically with any DSC Distress message you

may need to send. That will take the “search” out of “search and rescue.

A GPS input connector has been provided to allow connection to an

external GPS receiver.

To Install A GPS Device:

1. Install the GPS device in a convenient location according to its manufacturer’s

directions.

2. Plug-in the optional Cobra C.P.S. (Cobra Positioning System) into the provided

2.5mm jack.

3. Or using the supplied 2-wire adapter wire as follows:

Yellow wire - NMEA 0183 +Data in

Green wire - NMEA 0183 -Data in.

NOTE

Satellite acquisition time is dependent on the antenna mounting location. If the

acquisition takes too long, relocate the radio or use an external GPS receiver.

NOTE

GPS data input is as follows:

• Input voltage (peak to peak): 10V

• Maximum data rate: 4800 baud

• Impedance: 4KΩ

Wiring Located at Back

of Radio

Cobra Positioning

System Plug GPS Interface Cable

MRF57E_MANL_INSTALL.indd 32-33 5/7/15 2:45 PM

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Cobra MR F57B E Seite 14

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