Furuno FAR-2107 Operator's Manual page 26

1. RADAR OPERATION
The radar is initially set to previously used range and pulse length. Other
settings such as brilliance levels, VRMs, EBLs and menu option selections are
also set to previous settings.
The [STBY/TX] key (or TX STBY box) toggles the radar between STBY and
TRANSMIT status. The antenna stops in stand-by and rotates in transmit. The
magnetron ages with time resulting in a reduction of output power. Therefore, it
is highly recommended that the radar be set to stand-by when not used for an
extended period of time.
How to stop antenna rotation
Antenna rotation can be stopped. One method is to turn off the antenna switch
on the radar. The other method is to stop rotation from the menu. For how to
stop rotation from the menu, see the installation manual.
Picture freeze
When the picture freezes the picture is not updated. 30 seconds after the picture
freezes, the buzzer sounds, the [ALARM ACK] key blinks and the alert contact
signal is output. Reset the power to restore normal operation.
Quick start
Provided that the radar was once in use with the transmitter tube (magnetron)
still warm, you can turn the radar into TRANSMIT condition without three
minutes of warm-up. If the [POWER] switch was turned off by mistake or the like
and you wish to restart the radar promptly, turn on the [POWER] switch not later
than 10 seconds after power-off.
Echo area
The echo display area for the B, C and W types is available in three
configurations: round, wide, and full screen. You can select a configuration with 7
ECHO AREA on the ECHO menu.
1-2
Round Wide Full