Cobra Electronics LI 3900DX User Manual

TWO-WAY RADIO MODEL

LI 3900 DX

Nothing Comes Close to a Cobra

Owner’s Manual

Printed in China

Part No. 480-249-P

Version B

English

Introduction

Staying in touch with your family and friends is convenient and easy when using your microTALK

Making Life Easier and Safer

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

Customer Assistance

Secure your microTALK radio while on the go.

Carrying your microTALK®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.

For Assistance in the U.S.A.

In this user’s manual, you should find all the information you need to operate your microTALK assistance after reading this manual, Cobra Electronics offers the following customer assistance services:

radio. If you require further

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. Central Time, 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

@cobra.com (e-mail).

For Assistance Outside the U.S.A.

Contact Your Local Dealer

English

6500 West Cortland Street

Chicago, Illinois 60707 USA

www.cobra.com

Introduction

Antenna

Hi•Low

Power

Button

Max Range

English

Product Features

Talk

Light/

Button

Wrist Strap

Connector

Belt Clip

Battery

Compartment

Battery Door

Latch

External Speaker/ Microphone/ Charge Jack

On/Off

Button

Call

Button

Backlit LCD Display

Channel Up/ Down

Button

Mode Button

Volume

Button

Lock/Enter

Button

Speaker/ Microphone

Introduction

Features

• 22 Channels

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

121 Privacy Codes

• (38 CTCSS codes/ 83 DCS codes)

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

Channel Numbers

Powe r

Saver Icon

Privacy Code

Scan

Numbers

Icon

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

Important FCC Licensing Information

This radio operates on General Mobile Radio Service (GMRS) frequencies which require a Federal Communications Commission (FCC) license. See page 26 for licensing and other related information.

Keystroke Tones Icon

Roger Beep Icon

Vox Icon

Memory Icon

Memory Location Number

CTCSS Icon

Recieve/ Transmit

Icon Battery Level Indicator

Hi•Low Powe r Icons

Introduction

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

Rechargeable Battery Pack and Desktop Charger

To install or replace battery pack:

Remove belt clip by releasing belt clip

Pull Up Latch

Insert Battery Pack

latch and sliding clip up.

2. Pull up on the battery door latch to remove

the battery compartment cover.

3. Insert lithium ion battery pack. Position

battery pack according to polarity markings.

4. Replace battery compartment cover

and belt clip.

Estimated operation time on full charge: 10 hours.

Rechargeable battery packs must be recycled or disposed of properly in compliance with all applicable laws. They may not be thrown in the trash.

Certain states or municipalities require recycling and have established collection programs. Please contact your local waste removal authority for instructions, or return to Cobra for recycling.

Wrap battery packs carefully and mail postage prepaid to: Cobra Electronics Corporation, 6500 West Cortland Street, Chicago, IL 60707 USA, Attn: Battery Recycling.

Do not put battery packs into fire or expose to high heat. They may explode.

•

Nothing Comes Close to a Cobra

Introduction

Insert Radio(s)

Using Your Radio

For charging microTALK®radio(s) in desktop charger:

Insert radio(s) into desktop charger as shown.

2. Insert round connector of 120 volt adapter

into jack on back of charger.

3. Plug 120 volt adapter into electrical outlet.

If charging light is not upright. The charge indicator light will stay is in the charging well and the battery pack is charging. After the battery pack is fully charged, the charge indicator light will turn

It normally takes about 15 hours to fully recharge battery pack. Battery pack will not be damaged if they stay in the charging well longer than that.

on, check position of radio. Radio should be

on as long as the radio

Each port can charge one radio. Uses 120 Volt adapter. Cobra recommends your radio is turned

off while being charged.

The Basics to Get You Started

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

1. Press and hold the Power button 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.

off.

On/Off Power

Battery Low

Battery Save Mode

Talk Button

Two Inches (five cm) from Mouth

Customer Assistance WarrantyIntroduction Operation

Turning on Your microTALK®Radio

To turn on your radio:

Press and hold the Power button until you

–

hear a series of audible tones indicating the radio is

on.

Your microTALK mode, ready to receive transmissions. The radio is always in

radio is now in Standby

Standby mode, except when the

Talk, Call or Power buttons are pressed.

Battery Low

When battery power is low, the Battery Low icon will blink. Your batteries should be 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 the

Power Saver icon will flash in the display.

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

Battery Save mode and

Communicating with Another Person

To talk to another person:

Press and hold the Talk button.

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

Talk button.

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

•

English

Nothing Comes Close to a Cobra

Operation

Channel Buttons

Channel Number

Listening

Call Button

Using Your Radio

Channels

To select a channel:

With the radio on, select any of the

–

22 channels by pressing the or Channel Down button.

Both radios must be tuned to the 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 for a Response

When you are finished talking:

Release the Talk button to receive incoming

–

transmissions. Your microTALK always in

Standby mode while the Talk or

Call buttons are not pressed.

Call Button

To alert another person that you are calling:

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.

Channel Up

radio is

Operation

•

Hi•Low Button

Hi Power Icon

Low Power Icon

•

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.

To toggle between high and low power:

Press and release the Hi•Low button.

–

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.

Light/Max Range

Display Illumination

To illuminate your display:

Press and release the Light/Max Range

–

•

button to illuminate the display for 10 seconds.

Customer Assistance WarrantyIntroduction

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

Hi icon

Low icon

•

English

Nothing Comes Close to a Cobra

+ 13 hidden pages