Garmin 76S and Spectrometer Use in the Field

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Garmin 76S and Spectrometer Use in the Field
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Before Using a GPS to Collect Data

• Set up GPS with correct
• Map Datum WGS 84
• Location Format Decimal Degrees
• Time Zone
• Distance and other units (feet or meters)
• Think about what data you will collect and how
  you will name and record it
• This unit is a simple unit and you will have to
  have a log book to go along with it to keep
  track of attributes for each waypoint

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Contents of Box
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Front of 76S remove platics protective cover
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• Remove back cover by lifting and turn small ring

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Install two AA Batteries and replace cover
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Activating Unit the First Time Go outdoors

1. Turn on unit - press red light bulb button
2. When Accept screen comes on press Page key to
   accept
3. Leave unit on as it acquires satellites and finds
   a location
4. Note number of satellites and regions of sky they
   are in

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• Use Zoom in and out buttons to look at current
  location

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Setting Up Data Collection Properties

1. Press Menu
2. Use Toggle wheel and highlight Setup Map
3. Press Enter

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• Note there are Menu Tabs that you will go through
  to set up the unit
• You may want to go back and customize some of
  these later
• Use Toggle Wheel and Enter button to move from
  Tab to Tab or within a Tab Press Enter to
  select the item to change, then Toggle to correct
  option and press Enter again

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• Look at each item and change to your preferences.

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• Be sure to change to correct Time Zone for the
  place you will be collecting data

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• You can select feet or meters as you prefer for
  your Units

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Location is a VERY important Tab

1. Change Location Format to Decimal Degrees
   hddd.ddddd
2. Map Datum WGS 84

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Collecting a Waypoint

• Press and hold down Menu button
• Use toggle wheel to move to name of this
  Waypoint which is 001
• Press Enter
• Use toggle wheel on each letter to select a name
  for the location.
• Press Enter when you have toggled to correct
  letter
• When finished use toggle wheel to go to OK and
  then Press Enter
• That waypoint will now be named in your Units
  memory.

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My Waypoint for Beatty
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Saturday Field Trip

• We will collect waypoints at several SHORT stops
  on our way to Padre Island. Please be sure you
  do this at each stop and then write a short
  description for your Log Book
• We will be spending the major part of our time
  collecting field data on vegetation density in
  one location on Padre Island
• This will include creating a 30 x 30 and a 60
  x 60 meter test area

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Back in the Lab - Monday

• BRING your GPS to the Lab
• We will download your field trip data and create
  a simple map on top of the Corpus Christi remote
  sensed image.
• Look at your notes on spectral signatures and
  look at the location and size of the pixel you
  created with your GPS points.
• Does your spectral data concur with your
  visualization from the image of Padre Island?

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