Furuno FM-4800, Operator'S Manual

Page: 18 / 135

FM-4800 Operator’s Manual CONTROLS
9
2.3 Handset
No. Description
1
[PTT] : Push-to-Talk Key
The transmitter is enabled for voice communications with another
vessel.
Note
When the PTT key on the microphone is pressed continuously,
transmission time is limited to five minutes. This limits unintentional
transmissions due to a stuck PTT key.
In addition, Power is automatically reduced to protect against
overheating due to continuous transmission.
2
[MENU/DSC] : Menu / Digital Selective Calling (DSC) Control

On the home screen:

Press: Enter "MAIN MENU"

Rotate: Switch to a channel

On other screens:

Press: Select item or confirm the selection

Rotate: Move to other item or select a number