ACR Electronics Cobham ResQLink PLB-375 Product Support Manual page 10

4. Activating Your Beacon
Proper Positioning and Handling during Activation
Do not cover the GPS receiver with your
hand and make sure you have a clear view
to the sky to ensure GPS is downloaded.
Make sure the antenna is pointing towards
the sky, out of the water. Beacon is not
intended to operate in water.
10