Raymarine SL72 Owner's Handbook Manual page 36

Chapter 2: Getting Started & Adjusting the Display
After 70 seconds, when the magnetron warm-up sequence is complete, the
Standby screen is displayed, with the text STANDBY and a prompt to press the
POWER key to enter Transmit mode.
➤ To switch the radar scanner from Stand-by mode to Transmit mode, press the
POWER key.
The scanner transmits pulsed energy while it rotates, and the antenna sweep
builds up the radar picture using echoes returned from targets.
Figure 2-2:
➤ You can switch on and adjust the display backlighting and contrast, if required,
as described later in this chapter.
➤ To switch to Stand-by mode, press the POWER key.
The display returns to the Stand-by screen, and the scanner transmission and
rotation stops.
➤ To use Scanner off mode:
1. Ensure that the radar is in Standby mode, warming up, or displaying a mes-
sage that radar data is not available.
2. Press the CLEAR key. The message STANDBY. RADAR DATA NOT AVAILABLE
appears in the radar picture. The scanner is powered down and the timer, if
running, is cleared.
To return to radar operation, press the POWER key. The warm-up countdown
is displayed and the radar goes into Standby mode. You press POWER again to
switch to Transmit mode when required.
Radar Transmit Mode
2-3