Astro 320 and DC40 Owner’s Manual 7Introduction➋➌The red LED ➌ flashes (singleblink) when the DC 40 is on andsearching for satellite signals.TIP: Turn on the DC 40, and let itacquire satellites before you put iton your dog.Acquiring Satellite SignalsBefore you can track your dog usingthe Astro and the DC 40, both devicesmust acquire GPS satellite signals.Acquiring satellite signals can take afew minutes.1. Go outdoors to an open area, awayfrom tall buildings and trees.2. Press and quickly release .The status page appears. Thebars indicate satellite strength.3. Wait for the DC 40 to acquiresatellite signals.SingleblinkDC 40 is searching forsatellite signals.DoubleblinkDC 40 has acquiredsatellite signals.TripleblinkDC 40 is trackingseven or moresatellites (best GPSperformance).Attaching the DC 40 toYour DogAttach the DC 40 to your dog’sneck with the VHF antennapointing up (page 9) and the LEDfacing forward.
