JRC JMR-7230-S3 Quick Operation Manual page 5

The standby/transmission changeover button of the radar system information is switched to
"Preheat".
Standby/transmission
changeover button
4
Wait until preheating completes.
When the preheat time expires, the Preheat Time screen disappears and the
standby/transmission changeover button of the radar system information is switched from
"Preheat" to "Standby".
5
Click the standby/transmission changeover button.
Radar transmission starts and the radar antenna rotates.
The display of the standby/transmission changeover button is switched from "Standby" to
"Transmit".
Standby/transmission
changeover button
When a magnetron radar
antenna is connected
3
Standby/transmission
changeover button
When a fixed radar antenna
is connected