Garmin GPSMAP 496 Owner's Manual (for North America) - Page 116
Alarms Sub Tab Marine Mode Only, Weather Alarms Sub Tab, Sonar
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Main Menu > Alarms Tab Weather Alarms Sub Tab You must be receiving XM WX weather information for the weather alarms to work. Sonar Alarms Sub Tab (Marine Mode Only) You must be receiving sonar NMEA data for Sonar alarms to work. Weather Alarms Sub Tab Tornado Warnings-sets an alarm to sound when you enter an area where a tornado warning is in effect. Thunderstorm Warnings-sets an alarm to sound when you enter an area where a severe thunderstorm warning is in effect. Flood Warnings-sets an alarm to sound when you enter an area where a flood warning is in effect. Flash Flood Warnings-sets an alarm to sound when you enter an area where a flash flood warning is in effect. Marine Warnings-sets an alarm to sound when you enter an area where a marine warning is in effect. Sonar Alarms Sub Tab Shallow Water and Deep Water-sets an alarm to sound when you enter an area of water that is too shallow or deep. Water Temp-sets an alarm to indicate if the water temperature has exceeded or dropped below a specific temperature, or fallen outside/ inside a specific temperature range. Select Above or Below and then enter a specific temperature, or select Inside or Outside and enter a range of temperatures. Drift-sets an alarm to sound when you have exceeded a specified drift distance. Select On, and then enter a specific distance. Fish-sets alarm to sound when unit detects a fish of the specified symbol size. 108 GPSMAP 496 Owner's Manual