Columbia GM18 Operation Manual Download Page 2

OFF

VOL

Ear
Mic
Chg

Setting Up Your GMRS Radio

Component Guide

Operation

Mode

Call

Channel

T
a
l
k

Mon

(1)

(2)

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k

Mon

OFF

VOL

Ear
Mic
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1. Antenna

9. Power On/Off

Control

10. LCD Panel

11. Call Button

3. Earphone/Mic/

Charge Jack

2. Belt Clip

4. PTT (Talk) Button

5. Monitor Button

6. Mode Button

7. Up Button

8. Down Button

Transmit Signal

Channel Number

Receive Signal

CTCSS Code

Power Hi/Low

Indicator
Lock Mode

VOX Mode

Scan Mode

Battery Level

DO NOT PUT BATTERIES INTO FIRE OR

EXPOSE TO HIGH HEAT. THEY MAY

EXPLODE.

Setting Up Your GMRS Radio

6

5

7

8

Turning your GMRS ON

Rotate the Power ON/OFF/Volume Control in
a clockwise direction. The unit will beep, the
LCD panel will display information about your
radio, and the panel will be illuminated by a
green light for several seconds.

Communication

You can communicate two ways with your new
GMRS radio. There are 15 channels available
to you, each with 38 interference elimination
codes (CTCSS codes). You can either talk
directly to others and hear their response, or
you can call or page them with an audible tone.

In all cases, both units must be set to the
same channels and CTCSS codes, or they will
not communicate

. If the CTCSS code feature

is turned off, you will hear all transmissions
on the channel (1-15) that you are tuned to.

The GMRS radios can only communicate
when either the Talk button (for speech), or
the Call button (for paging) is pressed. The
unit can only receive when both buttons are
fully released.

Receiving Communications

When your GMRS unit is turned ON and is not
being used to transmit voice communication or
pages, it is always in the listening mode.

You cannot receive any transmissions when
the

or

buttons are pressed, even

if you aren’t saying anything. Pressing these
buttons automatically overrides and turns off
the receive mode.

Talk

Call

T
a
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k

Mon

Up

Dn

Up

Dn

Up

Dn

Up

Dn

Summary of Contents for GM18

Page 1: ...ts are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this eq...

Page 2: ...ys with your new GMRS radio There are 15 channels available to you each with 38 interference elimination codes CTCSS codes You can either talk directly to others and hear their response or you can call or page them with an audible tone In all cases both units must be set to the same channels and CTCSS codes or they will not communicate If the CTCSS code feature is turned off you will hear all tran...

Page 3: ...ceive your transmission they must also be on the same channel and CTCSS sub channel you are currently using Refer to the Changing Channels section for more information Respond Prompt Tone Talk When the person talking to you from another radio finishes speaking and releases his button you will hear a tone from your unit This means that the other radio is now in receive mode and you can begin your t...

Page 4: ... service Please read these instructions carefully Should you encounter any problems with the product or not understand its many features please refer to this owner s manual If after referring to the manual you still need help call Customer Service at 1 800 889 7434 between 9am and 5pm EST Eastern Standard Time For your own protection retain your original sales receipt indicating the date and place...

Page 5: ...Reception is weak Cannot change CTCSS sub channels The receiving signal may be weak and or out of range If this happens press the button Mon Monitor Range is limited Batteries may be weak Sound distortion problems Batteries may be weak 18 17 19 20 operation or unauthorized repair or alteration whichever is longer receipt state to state center COLUMBIA TELECOMMUNICATIONS INC 174 Milbar Blvd Farming...

Page 6: ...ON To maintain compliance with the FCC s RF exposure guidelines hold the transmitter and antenna at least 2 inches 5 centimeters from your face and speak in a normal voice with the antenna pointed up and away from the face If you wear the handset on your body while using the headset accessory use only the manufacturers supplied belt clip for this product and ensure that the antenna is at least 2 i...

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