Common MR F300 Functions
Operating Your Handset
VOX
The VOX function converts the handset microphone’s pickup of your voice from being controlled by the PTT button to being activated by your voice. When VOX is On, the PTT button does not need to be pushed to transmit your voice and you can just speak into the microphone.
When VOX is Off, you need to push the PTT button while speaking.
To Change Between VOX On and Off:
1.Press and hold the Mode button for two seconds while a call is in progress.
NOTE
When the VOX function is On in noisy environments, the caller connected to the F300 might hear some of your background noise.
Back Light/Lock
This button serves two functions:
■To turn the display back light On and Off.
■To lock and unlock most of the buttons on the handset.
Back Light
A light is provided behind the LCD screen to improve visibility of the information provided there. However, you can turn the light On or Off at will.
To Turn the Back Light On or Off:
1.Press the Back Light/Lock button.
Lock
The Lock function disables the operation of all buttons except PTT, Back Light/Lock and Power buttons. When Lock is On, accidental presses of any of the other buttons are ignored by the unit. A call can be continued if it was started before Lock was turned On, but new calls cannot be made or answered when Lock is On.
To Turn Lock On or Off:
1.Press and hold the Back Light/Lock button for two seconds.
8 English
Common MR F300 Functions
Operating Your Handset
Push to Talk (PTT)
This button serves two functions:
■To activate the handset microphone during a call when VOX is Off. This is similar to the action of such a button on a CobraMarine VHF or a CB radio.
■To activate the handset microphone for a PA announcement, the unit must be in Standby and be connected to the stereo’s AUX input with the stereo in AUX mode.
To Activate the Handset Microphone During a Call:
1.After placing or accepting a call, press the PTT button and talk into the handset microphone.
To Make a PA Announcement:
1.When the unit is in Standby mode, press the PTT button and talk into the microphone.
NOTE
Before a PA announcement can be made:
■The PA function must be turned ON from the settings menu.
■The F300 must be connected to the stereo system AUX input.
■The stereo must be in AUX mode with the stereo’s volume adjusted.
Green Phone Button
This button acts just like the green phone button on a cell phone. Pressing the button answers an incoming call and initiates dialing an outbound call after the number has been entered or selected.
In Standby mode, this button is a shortcut to the Call Log where a number can be selected to call.
Red Phone Button
This button acts just like the red phone button on a cell phone. Pressing the button ends an active call.
In modes other than an active call, it backs up to the Standby mode.
Nothing Comes Close to a Cobra® 9