How might an installer verify correct GPS...

🔍 Key Concepts

• DSC (Digital Selective Calling) distress alert requirements – what data must be transmitted automatically in an emergency • GPS-to-radio NMEA sentence interface – how the radio knows your position and time from the GPS • Difference between seeing raw GPS data (lat/long/speed) versus a simple GPS status/confirmation indicator on the radio

💭 Think About

• In a real distress, what information must the DSC radio already have from the GPS before you ever push the red button? • Which option best checks that the GPS data stream is continuously and correctly received by the radio, not just that the radio can transmit something? • Which method would an installer use during setup, without involving other vessels or actually sending a distress alert?

✅ Before You Answer

• Verify which choice shows that the radio is actually receiving and decoding GPS position sentences from the GPS unit. • Check whether any option would be unsafe or improper to use as a test method during installation. • Consider which display indication would be specifically designed to confirm valid GPS input, not just any position information.

How might an installer verify correct GPS sentence to marine DSC VHF radio?

Look for latitude and longitude , plus speed , on VHF display .

Press and hold the red distress button.

Look for GPS confirmation readout.

Ask for VHF radio check position report.

🔍 Key Concepts

💭 Think About

✅ Before You Answer