Cobra PR3100DX Service Manual

2-WAY RADIOMODEL

PR3100 DX

Nothing comes close to a Cobra

®

Owner’s Manual

Printed in Philippines

Part No. 480-113-P

Revised 11-21-03

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:

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

Making Life Easier And Safer

®

Secure your microTALK
radio while on the go.

Carrying your microTALK

®

®

radio with you is

easy when using the belt clip or wrist strap.

Wrist Strap

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
after reading this manual, Cobra
customer assistance services:

Automated Help Desk

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

®

radio. If you require further assistance

®

Electronics offers the following

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. www.cobra.com (on-line: Frequently Asked Questions).
English and Spanish. productinfo

For Assistance Outside The U.S.A.

Contact Your Local Dealer

English

A1

@cobra.com (e-mail).

®

©2003 Cobra

Electronics Corporation

6500 West Cortland Street

Chicago, Illinois 60707 USA

www.cobra.com

Introduction

Talk

Button

Light/

Max Range

Button

English

A2

Product Features

Wrist Strap

Connector

BeltClip

Battery

Compartment

Battery Door

Antenna

External Speaker/
Microphone Jack

Latch

On/Off
Volume

Knob

Lock

Button

Channel
Up/Down

Button
Backlit

LCD
Display

Hi•Low

Power Button

Call

Button

Mode

Button

Charger

Jack

Speaker/
Microphone

Introduction

Features

• 2-Way Radio
With up to a eight (8)
mile (13 km) range

• 22 Channels
Seven (7) shared
with FRS/GMRS,
seven (7) FRS only,
eight (8) GMRS only

• 38 Privacy

Codes

• Hands-Free Operation
(VOX)

®

• VibrAlert
Silent Paging

• Ten (10) Memory
Locations

• Signal
Strength Meter

• Scan
Channel, privacy
code, memory

• Selectable

Hi•Low Power

In GMRS

• Backlit

LCD Display

• Button Lock

• Call Alert
Ten (10)
selectable tones

• Speaker/

Microphone Jack

• Roger Beep
Selectable On/Off

• Battery/Power Saver

• Keystroke Tones
Selectable On/Off

• Auto Squelch

• Maximum Range

Extender

• Belt Clip

• Wrist Strap

English

A3

Transmit Icon

Product Features

Backlit LCD Display

Call Tones and

VibrAlert®Icon

Signal Strength

Meter Icon

Hi•Low

Power Icon

Receive/

Channel Numbers

Battery Level

Indicator

Important FCC Licensing Information

This radio operates on General Mobile Radio
Service (GMRS) frequencies which require a
Federal Communications Commission (FCC)
license. See page 22 for licensing and other
related information.

Lock Icon

Keystroke Tones Icon

Roger Beep Icon

CTCSS Privacy
Code Numbers

Memory
Location
Number

Memory
Icon

Scan Icon

Vox Icon

Power Saver Icon

Introduction

Caring For Your microTALK®Radio

Your microTALK
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

Operation

®

radio will give you years of trouble-free service

Customer Assistance

Warranty

Batteries

To Install Or Replace Batteries:

1. Remove belt clip by releasing belt clip

Pull DownLockLatch

latch and sliding clip up.

2. Pull down on the battery door latch to
remove the battery compartment cover.

3. Insert four (4) AAA 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
directly for optional charger accessories.

The Basics To Get You Started

Your microTALK

®

dealer or Cobra

®

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

®

•

•

1

Operation

On/Off Power

Battery Low

Battery Save Mode

Using Your Radio

Tur ni ng On Your microTALK®Radio

To Turn On Your Radio:

1. Rotate the On/Off Volume knob clockwise to
turn On your radio and adjust the volume.
A series of tones will indicate the radio is On.

Your microTALK
ready to receive transmissions. The radio is
always in Standby mode, except when the Talk,
Call or Mode buttons are pressed.

Battery Low

Your microTALK
that shows when battery power is decreasing.
The greater the number of ascending 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
recharged, if using rechargeable batteries.

Auto Battery Save

Your microTALK
designed to extend battery life. If there are no
transmissions within ten (10) seconds, the radio
will automatically switch to Battery Save mode
and the Power Saver icon will flash in the
display. This will not affect the radio’s ability
to receive incoming transmissions.

®

radio is now in Standby mode,

®

radio has a battery level meter

®

radio has a unique circuit

Operation

•

Talk Button

Communicating With Another Person

To Talk To Another Person:

Customer Assistance WarrantyIntroduction

•

1. Press and hold the Tal k button.

Two (2) Inches [Five
(5) cm] From Mouth

2. With the microphone about two (2) inches
[five (5) cm] from your mouth, speak in a
normal voice.

3. Release the Tal k button when you are
finished talking and listen for a response.

You cannot receive incoming calls while pressing

•

the Ta lk button.

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

Channel Button

•

Channel Number

Channels

To Select A Channel:

1. With the radio On, select any of the
22 channels by pressing the Channel Up
or Channel Down button.

•

Both radios must be tuned to the
same channel to communicate.

Channels 1 through 7 are shared with FRS/
GMRS. Channels 8 through 14 are FRS only.
Channels 15 through 22 are GMRS only.

See page 21 for FRS/GMRS frequency
allocations and compatibility charts.

Listening

Listening For A Response

When You Are Finished Talking:

1. Release the Tal k button to receive incoming
transmissions. Your microTALK
always in Standby mode while the Talk or

®

radio is

•

Call buttons are not pressed.

2

English

Nothing comes close to a Cobra

™

3

Operation

Volume Knob

Call Button

Hi•Low Button

Hi Power Icon

Low Power Icon

Light/Max Range

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 (2) second

call tone. You cannot send or receive
transmissions during the two (2) second
call tone.

See page 19 on how to select
between ten (10) call tone settings.

Selectable High•Low Power Output

When in close proximity to another party or
during favorable conditions, you can switch
from High to Low Power to extend battery life.

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

To Switch From High To Low Power:

1. Press and release the Hi•Low button.
When in high power and using Channels

1 through 7 and 15 through 22, the Hi icon
will be visible on the display.

When in low power and when using Channels
8 through 14, the Low icon 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 ten (10) seconds.

Operation

•

•

Auto Squelch/Maximum Range

Your microTALK
which automatically shuts Off weak transmissions and
unwanted noise due to terrain, conditions, or if you’ve
reached your Maximum Range limit.

You can temporarily turn Off auto squelch or turn On
maximum range extender, allowing all signals to be
received and extending the maximum range of your radio.

Light/Max Range

®

radio is equipped with Auto Squelch,

To Temporarily Turn Off Auto Squelch:

1. Press the Light/Max Range button less
than five (5) seconds.

If you hear two (2) beeps, you have turned
the maximum range extender On (see below).

Customer Assistance WarrantyIntroduction

•

To Turn Maximum Range Extender On:

•

1. Press and hold the Light/Max Range button
for at least five (5) seconds until you hear
two (2) 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 Function

The Lock button locks the Channel, Mode, and
Hi•Low Power buttons to prevent accidental operation.

Lock Button

Lock Mode

To Turn The Lock Button On Or Off:

1. Press and hold the Lock button for
two (2) seconds.

A double beep sound is used to confirm your
lock On or Off request. When in Lock mode,
the Lock icon will be displayed.

•

•

4

English

Nothing comes close to a Cobra

™

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