Garmin MX20 - Manual (Page 111)

Detailed Operation
On initial power-up and entry to the Radar Function, the radar unit may go to the Off mode. Selections can be
made to command the unit into one of the following initial modes:
• STBY
• ON
• TEST
• OFF
Once activated, the different operating modes of the radar are selected by pushing the corresponding Menu
Item keys. Descriptions of the different modes are as follows, with the currently selected mode being high-
lighted in green:
Off Mode
On MX20 power-up, the radar antenna is placed in the OFF mode. In this mode, the radar antenna head is not
energized and is not transmitting.
Standby/On Mode
In the standby mode, the radar head is powered up, but is not transmitting. Placing the unit into standby
mode initiates the warm-up sequence that is required by the transmitter within the radar head assembly. Press-
ing the StBY/ON key while in Standby mode turns on the radar in the Weather Mode. While in the ON mode
in both Map and Weather modes, the green RDR annunciator is on solid indicating that the radar is energized
and transmitting.
Test Mode
Pressing the tESt key while in the Standby mode places the radar in the Test mode. The radar then sends a
test pattern that is displayed on the MX20 I/O.
Weather Mode
In the weather (WX) mode, the antenna is transmitting and painting reflected returns on the screen. This mode
is intended for painting airborne weather and is the normal operating mode for the unit. Radar returns are
painted in the following colors:
Radar