Cobra PR4750WX Service Manual

The Cobra line of quality products includes:

CB Radios • microTALK®Radios • Radar/Laser Detectors • Safety Alert®Traffic Warning Systems • Handheld GPS Receivers • Mobile GPS Navigation Systems • HighGear CobraMarine™ VHF Radios • Power Inverters • Accessories

Accessories •

For more information or to

order any of our products,

please visit our website:

www.cobra.com

Nothing comes close to a Cobra

English

Owner’s Manual

TWO-WAY RADIO MODEL

PR 4750 WX

Nothing comes close to a Cobra

Printed in Philippines

Part No. 480-207-P

Version B

English

Introduction

Staying in touch with your family and friends is convenient and easy when using your microTALK radio. Some of the many uses you will discover include:

Making Life Easier and Safer

Communicating with others while hiking, biking, and working; keeping track of family and friends at a crowded public event; checking with travel companions in another car; talking with neighbors; arranging meeting spots with others while shopping at the mall.

Belt Clip

Secure your microTALK radio while on the go.

ying your microTALK

Carr

radio with

you is easy when using the belt clip. The belt clip easily attaches to your belt,

purse or backpack. Simply squeeze the clip and place it where you prefer.

Customer Assistance

For Assistance in the U.S.A.

In this user’s manual, you should find all the information you need to operate your microTALK

radio. If you require further assistance after reading this manual, Cobra Electronics offers the following customer assistance services:

Automated Help Desk

English only. 24 hours a day, 7 days a week 773-889-3087 (phone).

Customer Assistance Operators

English and Spanish. 8:00 a.m. to 6:00 p.m. CT, Monday through Friday (except holidays) 773-889-3087 (phone).

Questions

English and Spanish. Faxes can be received at 773-622-2269 (fax).

Technical Assistance

English only. English and Spanish. productinfo

www.cobra.com (on-line: Frequently Asked Questions).

@cobra.com (e-mail).

For Assistance Outside the U.S.A.

Contact Your Local Dealer

English

est Cortland Street

6500

Chicago, Illinois 60707 USA

www.cobra.com

Introduction

Assistance

Warranty

Assistance

Warranty

Antenna

Talk

Button

Max Range

English

Light/

Button

Product Features

Wrist Strap

Compartment

Battery Door

External Speaker/ Microphone/Charge Jack

Connector

Belt Clip

Battery

Latch

On/Off Volume

Knob

Backlit LCD Display

Channel Down

Button

Channel Up

Button

Lock/Mode

Button

Call

Button

Hi•Low Power/

Button

Enter

Speaker/ Microphone

Introduction

Features

• Two-Way Radio

With up to an 12 miles (19 km) range

22 Channels

• Seven shared with FRS/GMRS, seven FRS only, eight GMRS only

121 Privacy Codes

• (38 CTCSS codes/ 83 DCS codes)

•

10 Channel NOAA All Hazards Radio

• Hands-Free Operation (VOX)

• VibrAlert Silent Paging

• 10 Channel Memory

• Signal Strength Meter

• Scan Channel, privacy codes, memory

Selectable

•

Hi•Low Power

In GMRS

Backlit

•

LCD Display

• Button Lock

• Call Alert 10 selectable tones

Speaker/

•

Microphone/ Charge Jack

• Roger Beep Selectable on/off

Battery/

•

Power Saver

• Keystroke Tones Selectable on/off

Auto Squelch

•

• Maximum Range

Extender

• Belt Clip

English

Product Features

Backlit LCD Display

DCS Icon

Lock Icon

Call Alert and

VibrAlert®Icon

Signal Strength

Meter Icon

Hi•Low

Power Icon

Receive/ Transmit Icon

Channel Numbers

Powe r

Saver Icon

Scan

Icon

Battery

Level

Indicator

Maximum range may vary and is based on unobstructed line-of-sight communication under ideal conditions.

Important FCC Licensing Information

adio operates on General Mobile Radio

This r

vice (GMRS) frequencies which require a

Ser Federal Communications Commission (FCC)

See page 26 f

license related information.

Keystroke Tones Icon

Roger Beep Icon

Vox Icon

NOAA All Hazards Radio Icon

Memory Icon

Privacy Code Numbers

or licensing and other

CTCSS Icon

Memory Location Number

Introduction

Assistance

Warranty

Operation Customer Assistance Warranty

Caring for Your microTALK®Radio

Your microTALK®radio will give you years of trouble-free service if cared for properly. Handle the radio gently. Keep the radio away from dust. Never put the radio in water or in a damp place. Avoid exposure to extreme temperatures.

Remove Belt Clip

Batteries

To install or replace batteries:

1. Remove belt clip by releasing belt clip

latch and sliding clip up.

Pull Down Latch

2. Pull Down on the battery door latch to

remove the battery compartment cover.

3. Insert four AA batteries. (Always use high

Insert Batteries

quality alkaline batteries.) Position batteries according to polarity markings.

4. Replace battery compartment cover

and belt clip.

Contact your local Cobra dealer or Cobra directly for optional battery pack and wall charger accessories.

The Basics to Get You Started

Your microTALK®radio is easy to use. To get started, simply:

1. Rotate the On/Off Volume knob to turn on your radio.

2. Press the Channel Up or Channel Down

button to select a channel.

Both radios must be tuned to the same channel/privacy code to communicate.

3. Press and hold the Talk button while speaking into the microphone.

4. When finished talking, release the Talk button and listen for a response.

•

Nothing comes close to a Cobra

Assistance

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Assistance

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Assistance

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Operation

Assistance

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otice

aution Warning

Installation

ustomer

ssistance

On/Off Power

Battery Low

Battery Save Mode

Using Your Radio

Turning on Your microTALK®Radio

To turn on your radio:

1. Rotate the On/Off Volume knob clockwise

on your radio.

to turn

2. Rotate the On/Off/Volume knob clockwise to increase the volume or counterclockwise to reduce the volume.

Your microTALK mode, ready to receive transmissions. The radio is always in Talk, Call or Lock/Mode buttons are pressed.

Battery Low

Your microTALK®radio has a battery level meter that shows when battery power is decreasing. The greater the number of bars visible, the stronger the battery level. When the battery level is low, the last bar and “bALo” will flash indicating your batteries should be replaced or, if using rechargeable batteries, recharged.

Auto Battery Save

Your microTALK®radio has a unique circuit designed to extend battery life. If there are no transmissions for 10 seconds, the radio will automatically switch to

Power Saver icon will flash in the display.

the This will not affect the radio’s ability to receive incoming transmissions.

radio is now in Standby

Standby mode, except when the

Battery Save mode and

Operation

•

Talk Button

Communicating with Another Person

To talk to another person:

Customer Assistance WarrantyIntroduction

•

1. Press and hold the Talk button.

Two Inches (five cm) from Mouth

2. With the microphone about two inches

(five cm) from your mouth, speak in a normal voice.

3. Release the Talk button when you are

finished talking and listen for a response.

You cannot receive incoming calls while pressing the

•

Channel Buttons

Channels

To select a channel:

1. With the radio on, select any of the

Channel Number

•

Talk button.

Both radios must be tuned to the same channel/privacy code to communicate.

22 channels by pressing the or Channel Down button.

Both radios must be tuned to the

•

Channel Up

same channel to communicate.

Channels 1 through 7 are shared by FRS and GMRS. Channels 8 through 14 are FRS only. Channels 15 through 22 are GMRS only.

See page 25 for FRS/GMRS frequency allocations and compatibility charts.

Listening

Listening for a Response

When you are finished talking:

1. Release the Talk button to receive incoming

transmissions. Your microTALK

Standby mode while the Talk or

always in Call buttons are not pressed.

radio is

•

English

Nothing comes close to a Cobra

Assistance

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Operation

Assistance

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aution Warning

ustomer

Assistance

Volume Knob

Call Button

Hi•Low/Enter Button

Hi Power Icon

Low Power Icon

Light/Max Rang

English

Using Your Radio

Volume

To adjust the volume:

1. Rotate the On/Off Volume knob.

Call Button

To alert another person that you are calling:

1. Press and release the Call button.

The other person will hear a two second call tone. This tone is used only to establish voice communications.

See page 23 on how to select from 10 available call tone settings.

Selectable High•Low Power Output

When in close proximity to another party or during favorable conditions, you can switch

High to Low Power to extend battery life.

from

This feature applies to GMRS Channels 1 through 7 and 15 through 22 only. Channels 8 through 14 operate exclusively on low power.

To toggle between high and low power:

1. Press and hold the Hi•Low/Enter button for

two seconds.

When using Channels 1 through 7 and 15 through 22 on high power, the will be visible on the display

When using those channels on low power and on Channels 8 through 14, the will be visible on the display.

Display Illumination

To illuminate your display:

1. Press and release the Light/Max Range

button to illuminate the display for 10 seconds.

Hi icon

Low icon

Operation

•

Auto Squelch/Maximum Range

Your microTALK®radio is equipped with Auto Squelch, which automatically shuts due to terrain and conditions. This slightly reduces the

at which signals can be heard.

Range

off weak transmissions and unwanted noise

You can turn off auto squelch to allow all signals to be

Customer Assistance WarrantyIntroduction

•

Maximum

received and extend the maximum range of your radio.

Light/Max Range

To briefly turn off auto squelch:

1. Press the Light/Max Range button

for less than five seconds.

If you hear two beeps, you have turned the maximum range extender

on (see below).

To turn maximum range extender on:

•

1. Press and hold the Light/Max Range button

for at least five seconds until you hear two beeps which indicates the maximum range extender is

on.

To turn maximum range extender off:

1. Press and release the Light/Max Range

button or change channels.

Lock Feature

The Lock feature locks the Channel, Lock/Mode and Hi•Low Power/Enter

Lock/Mode Button

buttons to prevent accidental operation.

To turn the lock feature on or off:

•

1. Press and hold the Lock/Mode button for

two seconds.

A double beep sound is used to confirm your

on or off request. When in Lock mode,

Lock Mode

lock the

Lock icon will be displayed.

•

Nothing comes close to a Cobra

Assistance

Warranty

Operation

Using Your Radio

Dual Function Buttons

Two of the buttons on the microTALK®radio have Dual Functions; Lock/Mode

• Press and release the button to scroll to the next mode function.

• Press and hold the button for two seconds or more to turn the lock function

on or off

Hi•Low Power/Enter

• Press and release the button to enter settings.

• Press and hold the button for two seconds or more to toggle between high and low power transmission.

Speaker/Microphone/Charge Jack

Your microTALK®radio can be fitted with an external Speaker/Microphone, freeing your hands for other tasks. This same jack also serves as the connecting point for an optional wall charger/adapter.

Speaker/Microphone/ Charge Jack

To attach a speaker/microphone:

1. Open the speaker/microphone/charge

tab on top of your microTALK

radio.

2. Insert the plug into the speaker/

microphone/charge jack.

To connect a wall charger/adapter:

1. Open the speaker/microphone/charge

tab on top of your microTALK

radio.

2. Insert the wall charger/adapter plug

into the speaker/microphone/charge jack.

Signal Strength

Signal Strength Meter

Your microTALK®radio has a Signal Strength Meter

that shows the strength of your incoming and outgoing transmissions. The ascending bars next to the signal strength indicate the strength of the signal. The greater the number of bars visible, the stronger the signal. The fewer number of bars visible, the weaker the signal.

English

Operation

microTALK®Range

Your microTALK®radio has a range of up to 12 miles (19 km).

Customer Assistance WarrantyIntroduction

•

Your range will vary depending on terrain and conditions.

Maximum Range

In flat, open country your radio will operate at maximum range.

Buildings and foliage in the path of the signal can reduce the range of the radio.

Reduced Range

Dense foliage and hilly terrain will further reduce the range of the radio.

On FRS channels 8 through 14, your radio automatically switches to low power, which

•

Reduced Range

will limit the range the radio can communicate.

Remember, you can achieve maximum range by using maximum range extender. See page 5 for details.

Scrolling through Mode Functions

By scrolling through the Mode Functions, you will be able to select or turn When scrolling through the

on/off preferred features of your microTALK®radio.

Mode Functions, your radio features

•

will be displayed in the following order:

Lock/Mode Button

Set CTCSS Privacy Codes Set DCS Privacy Codes Set NOAA All Hazards Radio Channel Set VOX On/Off Set VOX Sensitivity Level Set Memory Locations

•

Set Channel Scan Set CTCSS Privacy Code Scan Set DCS Privacy Code Scan Set Memory Location Scan Set VibrAlert Set Call Alert Tone Signal Set Roger Beep On/Off Set Keystroke Tones On/Off

Scroll through the mode functions using the Each press and release of the next mode function. Press the

Standby mode.

radio to

and/or Call Alert

Lock/Mode button.

Lock/Mode button will advance to the

Talk button at any point to return the

Nothing comes close to a Cobra

+ 11 hidden pages