Cobra PR4750WX Service Manual

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please visit our website:

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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

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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

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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.

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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:

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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

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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

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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

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•

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.

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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).

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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

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Operation

Mode Functions

Privacy Codes

Your microTALK®radio incorporates two advanced coded squelch systems that can help to reduce interference from other users on any given channel. CTCSS (Continuous Tone Coded Squelch System) provides 38 privacy codes and DCS (Digitally Coded Squelch) provides 83 privacy codes. This provides a total of 121 Privacy Codes. Either system can be used on all channels, but both systems cannot be used on the same channel at the same time.

To successfully communicate using a privacy code, both the sending and receiving radios must be tuned to the same channel and to the same privacy code system (CTCSS or DCS) and privacy code number. Each channel will remember the last privacy code system and number you select.

The privacy code 00 is not a privacy code, but allows all signals to be heard on a channel that is set to 00 on both the CTCSS and DCS systems.

Set CTCSS Privacy Codes

Lock/Mode Button

To select a CTCSS privacy code:

1. After selecting a channel, press the

Lock/Mode button until the CTCSS icon

appears and the small numbers flash

CTCSS Privacy Code

on the display (01 through 38).

NOTE

If DCS is turned on at the channel selected, the display will flash the

Channel Buttons

CTCSS icon and “OFF.” To switch from DCS to CTCSS, press the

Channel Up

or Channel Down button while the display is flashing “OFF.” The display will then show the small numbers flashing and you will then be able to proceed to step 2.

2. Press using the Channel Up or Channel

button to select a CTCSS privacy

English

Down

code. You can hold the button for fast advance.

Up or Down

Operation

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3. When your desired CTCSS privacy code is

displayed, choose one of the following:

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a. Press the Lock/Mode button to enter the

new setting and proceed to other functions.

b. Press the Hi•Low/Enter button to enter the

new setting and return to

Standby mode.

c. Do not press any buttons for 15 seconds

to enter the new setting and return to Standby mode.

Set DCS Privacy Codes

Lock/Mode Button

To select a DCS privacy code:

1. After selecting a channel, press the Lock/Mode button until the DCS icon

•

appears and the small numbers flash

DCS Privacy Code

on the display (01 through 83).

NOTE

•

Channel Buttons

If CTCSS is turned on at the channel selected, the display will flash the DCS icon and “OFF.” To switch from CTCSS to DCS, press the or Channel Down button while the

Channel Up

display is flashing “OFF.” The display will then show the small numbers flashing and you will then be able to proceed to step 2.

2. Press using the Channel Up or Channel Down button to select a DCS privacy code. You can

Up or Down button for fast advance.

hold the

3. When your desired DCS privacy code is displayed, choose one of the following:

a. Press the Lock/Mode button to enter the

new setting and proceed to other functions.

b. Press the Hi•Low/Enter button to enter the

new setting and return to

Standby mode.

c. Do not press any buttons for 15 seconds to

enter the new setting and return to mode.

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Standby

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Mode Functions

NOAA* All Hazards Radio Channels

You can use your microTALK®radio to listen to NOAA All Hazards

channels transmitting in your area.

Radio

Lock/Mode Button

To listen to All Hazards Radio channels:

1. Press the Lock/Mode button until the WX

(All Hazards Radio) icon, the currently selected All Hazards Radio channel,

Hazards Radio Icon

and signal strength are displayed.

2. Use the Channel Up or Channel Down

button to change All Hazards Radio channels.

3. WX (All Hazards Radio) icon will continue to

Channel Buttons

be displayed when All Hazards Radio is Choose one of the following:

on.

a. Press the Lock/Mode button to proceed

to other functions.

b. Press the Hi•Low/Enter button to exit

All Hazards Radio channel mode and

Standby mode.

return to

*National Oceanographic and Atmospheric Administration

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Customer Assistance WarrantyIntroduction Operation

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Voice Activated Transmit (VOX)

In VOX mode, your microTALK®radio can be used “hands-free,” automatically transmitting when you speak. You can set the sensitivity level to fit the volume of your voice and avoid

•

VOX

transmissions triggered by background noise.

Lock/Mode Button

To turn VOX mode on or off:

1. Press the Lock/Mode button until the VOX

icon flashes on the display. The current on or off setting is displayed.

VOX Icon

2. Press the Channel Up or Channel Down button to turn VOX on or off.

3. Choose one of the following: a. Press the Lock/Mode button to enter the

on or off setting and proceed to

Channel Buttons

selected other functions.

b. Press the Hi•Low/Enter button to enter

on or off setting and return

Standby mode.

Lock/Mode Button

the selected to

To set VOX sensitivity:

1. Press the Lock/Mode button until the VOX

icon flashes and the current sensitivity level is displayed.

X Sensitivity Level

The current sensitivity level is displayed with letters “LE” and a Number 01 through 05, with Number 05 being the most sensitive level and Number 01

Channel Buttons

being the least sensitive level.

2. Press the Channel Up or Channel Down button to change the setting.

3. Choose one of the following: a. Press the Lock/Mode button to enter

the selected setting and proceed to other functions.

b. Press the Hi•Low/Enter button to

enter the selected setting and return

Standby mode.

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Mode Functions

10 Memory Locations

Your microTALK®radio has 10 Memory Locations for storing your most frequently used channels and channel/privacy code combinations. These

Memory Locations can be selected individually

or can be scanned. (See page 20 for memory location scan.)

Lock/Mode Button

To program a memory location:

1. Press the Lock/Mode button until the Memory icon and the memory location

flash on the display.

y Icon

Memor

Channel Buttons

2. Press the Channel Up or Channel Down button to select the memory location (0 through 9).

If a location has been programmed before, its associated channel/privacy code will be shown on the display.

3. Press the Hi•Low/Enter button to enter

Hi•Low/Enter Button

a new memory location or edit an already programmed memory location. The channel numbers will flash on the display.

4. Press the Channel Up or Channel Down button to select a channel (1 through 22).

5. Press the Hi•Low/Enter button. The CTCSS icon and privacy code numbers will flash on the display.

Operation

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6. Choose one of the following: a. Press the Channel Up or Channel Down

Customer Assistance WarrantyIntroduction

button to select a CTCSS privacy code (01 through 38) for the channel.

b. Press the Hi•Low/Enter button to

switch from CTCSS to DCS. The DCS icon and privacy code numbers will flash on the display. The or Channel Down button can then be

Channel Up

used to select a DCS privacy code (01 through 83) for the channel.

If “OF” flashes in place of the privacy code numbers, a privacy code is already set in the opposite (CTCSS or DCS) system. Press the or Channel Down button to cancel

Channel Up

the opposite code and select a privacy code from the active system for the selected channel.

7. Choose one of the following: a. Press the Hi•Low/Enter button to enter

the channel/privacy code in the selected memory location and return to Step 1 to program another memory location.

b. Press the Lock/Mode button to

enter the channel/privacy code in the selected memory location and proceed to other functions on the channel/privacy code displayed before you entered mode functions.

c. Press the Talk button to enter the

channel/privacy code in the selected memory location and exit mode functions. Upon release of the radio will enter

Talk button, the

Standby mode on the

channel/privacy code just entered.

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Lock/Mode Button

Memory Icon

Channel Buttons

Mode Functions

To recall a stored memory channel location:

1. Press the Lock/Mode button until the Memory

icon and the memory location number flash on the display.

2. Press the Channel Up or Channel Down

button to select a memory location (0 through 9).

If a location has been programmed before, its associated channel/privacy code will be shown on the display.

3. Press the Talk button to return to Standby

mode on the selected memory location.

A memory location can be reprogrammed at any time it is displayed. Press the Hi•Low/Enter button to begin.

While recalling a stored memory location, if you do not press any buttons for 15 seconds, your radio will automatically return to mode on the channel/privacy code displayed before you entered mode functions.

Standby

Lock/Mode Button

Memory Icon

Channel Buttons

Hi•Low/Enter Button

Channel 0

Operation

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To de-program a memory location:

1. Press the Lock/Mode button until the Memory icon and the memory location

flash on the display.

2. Press the Channel Up or Channel Down button to select the memory location (0 through 9).

If a location has been programmed before, its associated channel/privacy code will be shown on the display.

3. Press the Hi•Low/Enter button. The channel numbers will flash on the display.

4. Press the Channel Up or Channel Down button to select Channel 0.

5. Choose one of the following: a. Press the Hi•Low/Enter button to enter

the channel/privacy code in the selected memory location and return to the beginning of memory location options.

b. Press the Lock/Mode button to

enter the channel/privacy code in the selected memory location and proceed to other functions on the channel/privacy code displayed before you entered mode functions.

While de-programming a memory location, if you do not press any buttons for 15 seconds, your radio will automatically return to mode on the channel/privacy code displayed

Standby

before you entered mode functions.

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Mode Functions

Channel Scan

Your microTALK®radio can automatically scan channels.

Lock/Mode Button

To scan channels:

1. Press the Lock/Mode button until the Scan icon and the channel numbers

flash on the display.

Scanning Channels

2. Press the Channel Up or Channel Down button to begin scanning channels.

The radio ignores specific privacy codes while scanning channels.

Channel Buttons

The

Scan icon will continue to be displayed

when scan is

on. Your radio will continue to

scan all channels and stop if an incoming transmission is detected. Your radio will remain on that channel for 10 seconds.

While setting channel scan, if you do not press any buttons for 15 seconds, your radio will automatically return to Standby mode on the channel or channel/privacy code displayed before you entered mode functions.

Operation

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During channel scan (while receiving an incoming transmission), you can choose from the following:

Press and hold the Talk button to communicate on

that channel. Your radio will remain on that channel and return to

Standby mode.

Customer Assistance WarrantyIntroduction

b. Press the Channel Up or Channel Down button to

resume scanning channels.

If you press the 10 seconds after receiving a transmission, you will transmit on the channel on which you last received a transmission. This will return the radio to

Talk button while scanning, but more than

Standby mode.

If you do not press any button within 10 seconds after receiving a scanned transmission, your radio will automatically resume scanning channels.

During channel scan (while not receiving a transmission), you can choose from the following:

Press and hold the Talk button to communicate on the

channel or channel/privacy code that was displayed before you entered mode functions or the channel on which, during scanning, you last received a transmission. This will then return the radio to

Standby mode.

b. Press the Lock/Mode button to proceed to set privacy

code scan on the channel that was either displayed before you entered mode functions or on which, during channel scanning, you last received a transmission (see page 18 for further details).

c. Press the Hi•Low/Enter button to return to Standby mode

on the channel/privacy code that was displayed before you entered mode functions or the channel on which, during scanning, you last received a transmission.

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Mode Functions

Privacy Code Scan

Your microTALK®radio can automatically scan the Privacy

(either CTCSS 01 through 38 or DCS 01 through 83)

Codes

within one channel. Only one set of privacy codes (CTCSS or DCS) can be scanned at a time.

Select Channel

To scan privacy codes:

1. While in Standby mode, press the Channel Up or Channel Down button

to choose the channel on which you

Lock/Mode Button

Scan Privacy Codes

wish to scan privacy codes.

2. Press the Lock/Mode button until either the CTCSS or the DCS icon appears on the display and the

Scan icon and the privacy code

numbers flash on the display.

3. Press the Channel Up or Channel Down button to begin scanning privacy codes within the channel you selected.

Scan icon will continue to be displayed

Channel Buttons

The when privacy code scan is

on. Your radio will

continue to scan privacy codes and stop as an incoming transmission is detected. Your radio will remain on that channel/privacy code for 10 seconds.

While setting privacy code scan, if you do not press any buttons for 15 seconds, your radio will automatically return to the channel/privacy code that was displayed

Standby mode on

before you entered mode functions.

Operation

•

During privacy code scan (while receiving an incoming transmission), you can choose from the following:

Press and hold the Talk button to communicate on

that channel/privacy code. Your radio will remain on that channel/privacy code and return to

Customer Assistance WarrantyIntroduction

Standby mode.

b. Press the Channel Up or Channel Down button to

resume scanning privacy codes.

If you press the 10 seconds after receiving a transmission, you will transmit on the channel/privacy code on which you last received a transmission. This will then return the radio to

Talk button while scanning, but more than

Standby mode.

If you do not press any button within 10 seconds, your radio will automatically resume scanning privacy codes.

During privacy code scan (while not receiving a transmission), you can choose from the following:

Press and hold the Talk button to communicate on

the channel/privacy code that was displayed before you entered mode functions or the channel/privacy code on which, during scanning, you last received a transmission. This will return the radio to

Standby mode.

b. Press the Lock/Mode button to proceed to set memory

location scan (see page 20 for further details).

c. Press the Hi•Low/Enter button to return to Standby

mode on the channel/privacy code that was displayed before you entered mode functions or the channel/ privacy code on which, during scanning, you last received a transmission.

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Mode Functions

Memory Location Scan

Your microTALK®radio can automatically scan up to 10 programmed

Memory Locations.

If there are one or fewer memory locations programmed in your radio, the scan memory locations option will not be available. To program at least two memory locations, see program memory locations on page 12.

Lock/Mode Button

To scan memory locations:

1. Press the Lock/Mode button until the Scan

icon, Memory icon and the memory location number flash on the display.

Scanning Locations

2. Press the Channel Up or Channel Down button to begin scanning memory locations.

The Scan icon and the Memory icon will

Channel Buttons

continue to be displayed when memory location scan is to scan memory locations and stop if an

on. Your radio will continue

incoming transmission is detected. Your radio will remain on that memory location for 10 seconds.

While setting memory location scan, if you do not press any buttons for 15 seconds, your radio will automatically return to Standby mode on the channel/privacy code displayed before you entered mode functions.

Operation

•

During memory location scan (while receiving an Incoming transmission), you can choose from the following:

Press and hold the Talk button to communicate on that

memory location. Your radio will remain on that memory location and return to

Customer Assistance WarrantyIntroduction

Standby mode.

b. Press the Channel Up or Channel Down button to resume

scanning memory locations.

If you press the 10 seconds after receiving a transmission, you will transmit on the memory location on which, during scanning, you last received a transmission. This will return the radio to

Talk button while scanning, but more than

Standby mode.

If you do not press any button within 10 seconds, your radio will automatically resume scanning memory locations.

During memory location scan (while not receiving a transmission), you can choose from the following:

Press and hold the Talk button to communicate on the

channel/privacy code that was displayed before you entered mode functions or memory location on which, during scanning, you last received a transmission. This will then return the radio to

Standby mode. b. Press the Lock/Mode button to proceed to other functions. c. Press the Hi•Low/Enter button to return to Standby mode

on the channel/privacy code that was displayed before you entered mode functions or the memory location on which, during scanning, you last received a transmission.

To reduce the number of memory locations being scanned, you may de-program any unwanted locations. (See page 15 to de-program a memory location.)

English

Nothing comes close to a Cobra

Operation

Mode Functions

VibrAlert®and Call Alert

Your microTALK®radio can alert you to incoming signals by sounding an audible call tone, by vibrating silently or both.

Lock/Mode Button

To change call settings:

1. Press the Lock/Mode button until the Call Setting

VibrAlert®+ Ring

icon flashes on the display.

Channel Buttons

The current setting (“01” vibrate + ring, “02” vibrate

VibrAlert®Only

only or “03” ring only) is displayed.

2. Press the Channel Up or Channel Down button to

change the call setting.

Ring Only

3. Choose one of the following: a. Press the Lock/Mode

button to enter the new setting and proceed to other functions.

b. Press the Hi•Low/Enter button to enter the

new setting and return to

Standby mode.

Customer Assistance WarrantyIntroduction Operation

•

10 Call Tone Settings

You can choose from 10 different call tone settings to transmit

•

a unique call alert.

Lock/Mode Button

To change a call tone setting:

1. Press the Lock/Mode button until the

letter “C” and the current call tone number (01 through 10) is displayed.

Call Tone Setting

2. Press the Channel Up or Channel Down

button to hear the other call tone settings.

3. Choose one of the following: a. Press the Lock/Mode button to enter the

Channel Buttons

new setting and proceed to other functions.

b. Press the Hi•Low/Enter button to enter the

new setting and return to

Roger Beep Confirmation Tone

Roger Beep is an audible tone that your listener will hear when you release the

Talk button. This alerts the other party that you

Standby mode.

•

are finished talking and it is OK for them to speak.

Lock/Mode Button

Roger Beep On

To turn roger beep on or off:

1. Press the Lock/Mode button until the Roger Beep icon flashes on the display.

The current

on or off setting is displayed.

2. Press the Channel Up or Channel Down button to select roger beep on or off.

3. Choose one of the following: a. Press the Lock/Mode button to enter

Channel Buttons

the new setting and proceed to other functions.

b. Press the Hi•Low/Enter button to enter the

new setting and return to

Standby mode.

English

Nothing comes close to a Cobra

Mode Functions and

Operation

Keystroke Tones

With Keystroke Tones turned on, your radio will sound beeps each time you press a button or change a setting.

Lock/Mode Button

Keystroke Tones On

Channel Buttons

General Specifications

To change keystroke tones:

1. Press the Lock/Mode button until the Keystroke Tones icon flashes on the display.

The current

2. Press the Channel Up or Channel Down button to turn keystroke tones on or off.

3. Choose one of the following: a. Press the Lock/Mode button to enter the

b. Press the Hi•Low/Enter button to enter the

on or off setting is displayed.

new setting and return to

Standby mode.

Customer Assistance WarrantyIntroduction Operation

•

General Specifications

•

FRS/GMRS Frequency Allocation and Compatibility

Important: Please note that Cobra GMRS models with 15 Channels

may designate different channel numbers for the same frequency. For example, a Cobra15 Channel GMRS model would need to be tuned to Channel 11 in order to communicate with a 22 Channel GMRS tuned to Channel 15. Please refer to the chart below for channel/ frequency number compatibility.

A = Channel No. for 22 Channel FRS/GMRS Models B = Channel No. for 15 Channel GMRS Models C = Type of Radio Service D = Frequency in MHz

ABC D

1 1 FRS/GMRS 462.5625 2 2 FRS/GMRS 462.5875 3 3 FRS/GMRS 462.6125 4 4 FRS/GMRS 462.6375 5 5 FRS/GMRS 462.6625 6 6 FRS/GMRS 462.6875 7 7 FRS/GMRS 462.7125 8 FRS 467.5625

9 FRS 467.5875 10 FRS 467.6125 11 FRS 467.6375 12 FRS 467.6625 13 FRS 467.6875 14 FRS 467.7125 15 11 GMRS 462.5500 16 8 GMRS 462.5750 17 12 GMRS 462.6000 18 9 GMRS 462.6250 19 13 GMRS 462.6500 20 10 GMRS 462.6750 21 14 GMRS 462.7000 22 15 GMRS 462.7250

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Nothing comes close to a Cobra

FCC License and

Assistance

Warranty

Customer Assistance

IMPORTANT NOTICE: FCC LICENSE REQUIRED

This two-way radio operates on GMRS (General Mobile Radio Service) frequencies which require an FCC (Federal Communications Commission) license. A user must be licensed prior to operating on Channels 1 through 7 on high power or 15 through 22, which comprise the GMRS channels of this radio. Serious penalties could result for unlicensed use of GMRS channels, in violation of FCC rules. Operation of this radio is subject to additional rules specified in 47 C.F.R. Part 95.

Licensed users will be issued a call sign by the FCC, which should be used for station identification when operating this radio. GMRS users should also cooperate by engaging in permissible transmissions only, avoiding channel interference with other GMRS users, and being prudent with the length of their transmission time.

For licensing information and application forms, please call the FCC Hotline at 800-418-FORM. Request form #159 and form #605. Questions regarding the license application should be directed to the FCC at 888-CALL-FCC. Additional information is available on the FCC’s website at www.fcc.gov.

Channel 1 through 7 on low power and channels 8 through 14 comprise the FRS (Family Radio Service). No license is required to operate on the FRS.

Safety Information for microTALK®Radios

Your wireless handheld portable transceiver contains a low power transmitter. When the talk button is pushed, it sends out radio frequency (RF) signals. The device is authorized to operate at a duty factor not to exceed 50%. In August 1996, the Federal Communications Commission (FCC) adopted RF exposure guidelines with safety levels for handheld wireless devices.

Important

FCC RF Exposure Requirements: For body-worn operation, this radio has been tested and meets the FCC RF exposure guidelines when used with Cobra accessories supplied or designated for this product. Use of other accessories may not ensure compliance with FCC RF exposure guidelines. Use only the supplied antenna. Unauthorized antennas, modifications or attachments could damage the transmitter and may violate FCC regulations.

Normal Position

Hold the transmitter approximately two inches from your face and speak in a normal voice, with the antenna pointed up and away.

English

Product Service

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful

, and 2) this de

erence

interf including interference that may cause undesired operation.

Warnings: Replacement or substitution of transistors, regular diodes or

FCC

ts of a unique nature

other par Cobra may cause a violation of the technical regulations of part 95 of the FCC rules, or violation of type acceptance requirements of part 2 of the rules.

vice must accept any interference received,

ts other than those recommended b

, with par

Operation WarrantyIntroduction

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Product Service Questions

If you have any questions about operation or installing

Customer Assistance

•

your new Cobra product, or if you are missing parts…

Please call Cobra first! DO NOT RETURN THIS PRODUCT TO THE STORE! See customer assistance on page A1.

For Products Purchased in the U.S.A.

If your product should require factory service, please call Cobra first before sending your radio. This will ensure the fastest turn-around time on your repair. You may be asked to send your radio to the Cobra factory. It will be necessary to furnish the following to have the product serviced and returned.

1) For warranty repair include some form of proof-of-purchase, such as a mechanical reproduction or carbon of a sales receipt. If you send the original receipt, it cannot be returned.

2) Send the entire product.

3) Enclose a description of what is happening with the radio. Include a typed or clearly printed name and address of where the radio is to be returned.

4) Pack radio securely to prevent damage in transit. If possible, use the original packing material.

5) Ship prepaid and insured by way of a traceable carrier such as United Parcel Service (UPS) or Priority Mail to avoid loss in transit to Cobra Factory Service, Cobra Electronics Corporation, 6500 West Cortland Street, Chicago, Illinois 60707 U.S.A.

6) If the radio is in warranty, upon receipt of your radio, it will either be repaired or exchanged depending on the model.

Please allow approximately three to four weeks before contacting Cobra for status. If the radio is out of warranty, a letter will automatically be sent informing you of the repair charge or replacement charge. If you have any questions, please call 773-889-3087 for assistance.

For Products Purchased Outside the U.S.A.

Please contact your local dealer for product service information.

Nothing comes close to a Cobra

Warranty and Trademark

Warranty

Limited One-Year Warranty

For Products Purchased in the U.S.A.

Cobra Electronics Corporation warrants that its Cobra microTALK radios, and the component parts thereof, will be free of defects in workmanship and materials for a period of one year from the date of first consumer purchase. This warranty may be enforced by the first consumer purchaser, provided that the product is utilized within the U.S.A.

Cobra will, without charge, repair or replace, at its option, defective microTALK Cobra Factory Service department, accompanied by proof of the date of first consumer purchase, such as a duplicated copy of a sales receipt.

You must pay any initial shipping charges required to ship the product for warranty service, but the return charges will be at Cobra’s expense, if the product is repaired or replaced under warranty.

This warranty gives you specific legal rights, and you may also have other rights which may vary from state to state.

Exclusions: This limited warranty does not apply: 1) To any product damaged by accident; 2) In the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs; 3) If the serial number has been altered, defaced or removed; 4) If the owner of the product resides outside the U.S.A.

All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to the length of this warranty or other damages; including, without limitation, damages resulting from loss of use or cost of installation.

Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you.

For Products Purchased Outside the U.S.A.

Please contact your local dealer for warranty information.

Trademark Acknowledgement

Cobra®, microTALK®, Nothing comes close to a Cobra®, VibrAlert and the snake design are registered trademarks of Cobra Electronics Corporation, USA. Cobra Electronics Corporation™ is a trademark of Cobra Electronics Corporation, USA.

Acknowledgement

radios, products or component parts upon delivery to the

. Cobra shall not be liable for any incidental, consequential

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English

Cobra PR4750WX Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual