Owner's Manual
Table Of Contents
- Introduction
- Getting Started
- Basic Operation
- Turning the Radio On and Off
- Adjusting the Volume
- Adjusting the Squelch
- Selecting Channels
- Transmitting with the Radio
- Bypassing the LO (1 W) Transmission Power Setting
- Scanning and Saving Channels
- Repeating the Last Received Communication
- Monitoring Multiple Channels
- Reprogramming the Second-Priority Channel
- Using 16/9 Mode
- Switching Between 1 W and 25 W Transmitting Modes
- Adjusting the Local/Distant Receiving Sensitivity
- Using the Intercom
- Using the Hailer
- Using the Foghorn
- Listening to NOAA Weather Broadcasts and Enabling Weather Alerts
- Automatic Transmitter Identification System
- Digital Selective Calling
- Advanced Operation
- Appendix
- Index

VHF 300 Series Owner’s Manual 13
Basic Operation
Entering Your ATIS Identication Number
IMPORTANT: Use caution when entering your ATIS identication number because you
can only enter it once. If you need to change your ATIS identication number after entering
it, you must take the radio to your Garmin dealer for reprogramming.
1. Press the MENU key.
2. Select ATIS > MY ATIS ID.
3. For each number in the sequence, turn the Channel knob clockwise to increase the
number, and counterclockwise to decrease the number.
4. Press the Channel knob to accept the number and move to the next number in the
sequence.
5. Select ACCEPT when you have entered your ATIS number. The radio prompts you
reenter your number.
6. Enter your ATIS ID number again, and press ACCEPT. If the ATIS ID numbers you
entered do not match, the screen displays “ATIS ID NUMBERS DO NOT MATCH”.
Select RETRY and enter the numbers again.
Viewing Your ATIS ID Number
1. Press the MENU key.
2. Select ATIS > MY ATIS ID.
3. Select OK to return to the previous screen, or press the MENU key to return to the Home
screen.
Turning ATIS Functionality On and Off
1. Press the MENU key.
2. Select ATIS > ATIS.
3. Select ON or OFF. When ATIS is enabled, the
ATIS
icon is displayed on the screen.
4. Select OK to save your changes and return to the Home screen. Press the MENU key to
return to the Home screen without saving your changes.










