Garmin GPS 152H Owner's Manual - Page 20

Settings To automatically scan for a frequency: 1. Select Garmin DGPS in the Serial Data Format field. 2. Select Scan in the Beacon field. The unit begins scanning. If it is necessary to restart the scan, press Menu and select Restart Scan. To manually enter the frequency and bit rate: 1. Select Garmin DGPS in the Serial Data Format field. 2. Select User in the Beacon field. 3. Enter the desired frequency and bit rate. The Status field indicates one of the following: • Tuning-attempting to tune to the specified frequency and bit rate. • Scanning-automatically scanning through the frequencies and bit rates. • Receiving-receiving DGPS signal and ready for operation. • Check Wiring-not making a connection with a DGPS receiver. When the unit is receiving a DGPS signal, the SNR (Signal to Noise Ratio) and Distance fields contain data. The SNR range is 0dB to 30dB, with 30dB being the best. The Distance field may or may not show data, depending upon the signal being broadcast from the DGPS site. Using the Alarms Tab You can set the unit to sound an audible alarm when certain conditions are met. By default, all alarms are turned off except the arrival alarm. From any Main page, press Menu twice and highlight Alrm. • Anchor Drag-sets an alarm to sound when you exceed a specified drift distance. • Arrival-sets an alarm to sound when you are within a specified distance or time from a destination waypoint. Select Dist (distance) or Time to set whether the arrival alarm triggers on distance to arrival or time to arrival. • Off Course-sets an alarm to sound when you are off course by a specified distance. • Clock-sets an alarm using the system (GPS) clock. The unit must be on for the clock alarm to work. • Shallow Wtr-sets an alarm to sound when the depth is less than the specified value. • Deep Water-sets an alarm to sound when the depth is greater than the specified value. 16 GPS 152H Owner's Manual