Standby/Receive and Transmit
Nothing comes close to a Cobra®31
Standby/Receive and Transmit
30 English

Key Lock

To prevent accidental changes to your settings,
you can Lock:
■ Channel Up Button
■ Channel Down Button
■ UIC Button
■ 16 Button
■ High/Low Power Button
■ Dual-Watch/Scan Button
To lock or unlock the buttons:
1.Press and hold the Backlight/Key Lock button.
The key icon will appear or disappear in the LCD.
When key lockis On, pressing any of the listed buttons
on the front of the radio will result in a three-beep error
message. Both the Backlight/Key Lockbutton and the
Talkbutton are active — you can receive or transmit
a message with key lockOn, but you cannot change
the channel.
Standby/Receive and Transmit •

Standby and Receive

Standbymode is the usual mode for the radio whenever it is turned On. From this
mode, you can change your settings using the buttons on the front of the radio
and switch to Transmitmode using the Talk button. Signals will be Received on
the selected channel(s) and alerts broadcast by the coastguard will activate the
corresponding routines in your radio.
NOTE
Coastguard alerts are broadcast on Channel 16.
While in Standbymode, you will receive any messages sent on the
channel to which you are tuned.

Transmit

Transmitmode gives you the ability to interact with
safety services, other vessels and shore stations. When
you use this capability, be sure to follow the procedures
and to observe the courtesies that govern its use so
everyone benefits. (See pages 12 – 21 to help you
select the proper channels.)
To transmit a message:
1.Check to see that your radio is set to a proper
channel for the type of message you plan to send.
2.Toggle to the low power setting.
3.With the microphone about 5 cm from your mouth, press
and hold the Talkbutton and speak into the microphone.
The Transmiticon and meter will appear on the LCD.
4.Release the Talk button when you have finished
speaking. Your radio can only operate in either the
Transmit or the Receive mode at any given time.
You will not hear the response to your message
unless the Talkbutton is released.
If the Battery Powericon begins blinking on the
LCD when the Talkbutton is depressed, the radio
will NOT transmit and the Transmiticon will blink.
If the Talkbutton is held down for five minutes,
the radio will automatically cease transmitting to
prevent unwanted signal generation and battery
drain. As soon as the Talkbutton is released,
it can be pressed again to resume transmission.
Operating Your Radio Operating Your Radio
Low Power Mode
Check Channel Number
Talk Button
5 cm from Mouth
Locked Buttons
Key Lock Icon
Backlight/Key Lock Button
Transmit Lo Power
Transmit High Power
300-BR-F 6/23/04 1:56 PM Page 30