SAR Fundamentals/GPS practical
From PCSAR
- SAR Fundamentals Manual: Ch.13 "Navigation"
- Basic SAR Skills Manual: Ch.7 "Navigation"
- 1.25 hr : 20:15-21:00
more material. See ~/sar/pc/training/subject/sar-fundamentals/components/subject/19-navigation-GPS
Exercise
- Review how to set up GPS
- Map Datum: NAD27 vs WGS84
- Grid system: UTM (Canada)
- Review how to read UTM (Zone, Easting, Northing)
- Review how to determine accuracy (e.g. 11m)
- waiting makes more accurate
- Distribute maps
- Have students break up into small groups
- Assign each group a radio and call sign
- Do a radio test
- Establish a return to class time
- Using the answer sheet, the instructor chooses a nearby Target Letter for row ii. All the students fill it in.
- Each group randomly chooses letters for rows iii to vi. They write them in and the instructor records them on his sheet.
- go outside the classroom and record the Zone, Easting, Northing and Accuracy
- Review how to compare Eastings and Northings to compare relative distance and direction
- as a class, walk to the UTM for the Target Letter of row ii.
- locate and go to the nearest feature.
- record the Feature Number, Zone, Easting, Northing and Accuracy for the feature.
- Compare accuracy of exercise sheet with current accuracy. How do the 2 errors combine?
- break up into assigned groups and proceed to the remaining 5 Target Letters they have chosen, find the nearest feature and record the Zone, Easting, Northing and Accuracy for the feature.
- Some groups will complete early, have them do additional targets
