Radiotelemetry Triangulation Program

for Windows PC, and Palm & Windows Mobile PDAs. Version 3.34, Sept 2011.

 

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Using Locate III in the field

 

 

 

 

 

 

 

First search for a signal from the animal, and then measure bearing angle.

 

 

You enter data into the Palm:

       You are at Station #31 (which is on the knoll just past the sharp turn in the trail), so you tap the Station button to select it.

       You hear a signal for animal 'Bonnie', so you tap the Who buttom to select Bonnie's data.

       This is the first bearing for this location, so you tap the new location checkbox.

       Bonnie's signal is at 170, so you enter that bearing.

       The signal is weak, so you enter that info in the Comments.

       You tap Save.

 

 

 

 

 

 

 

 

get another bearing, again entering it into the Palm.

 

 

 

 

 

 

 

 

Should you get more bearings, or do you have enough for a good location?

You tap a button to plot the location.

The long thin error ellipse tells you that you need to get more bearings - you need to go south, to get some bearings from the side.

The background map shows you that there are some trails going in that direction.

 

 

 

 

 

 

You go south to another spot

 

 

 

 

 

 

and get another bearing

 

 

 

 

You enter the 4th bearing into the Palm and plot it again.

Ah - now you have a good location. A nice small circular error ellipse.

 

 

 

 

 

 

At the end of the day you go back to your field camp, plug your Palm into the cradle and automatically transfer all data into your PC. Then you view your results using Windows Locate.

 

 

The ellipses show the confidence regions for the locations. The blue lines are map features. The numbers in circles are fixed telemetry stations.

 

 

You can do more editing and location checking. Then, you save the location data into files to be used in other programs for further analysis.

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