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...
GPS
...
can
...
be
...
a
...
pretty
...
tricky
...
subject
...
to
...
understand.
...
A
...
couple
...
of
...
useful
...
points
...
are:
...
- All
...
- points
...
- are
...
- given
...
- as
...
- UTM
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- grid
...
- references
...
- .
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- These
...
- grid
...
- references
...
- are
...
- metres
...
- east
...
- and
...
- metres
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- north
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- from
...
- a
...
- certain
...
- point
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- (eastings
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- and
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- northings),
...
- which
...
- is
...
- determined
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- by
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- the
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- UTM
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- Zone
...
- .
...
- In
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- Tasmania,
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- the
...
- Zone
...
- is
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- always
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- 55G.
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- All
...
- points
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- on
...
- this
...
- site
...
- are
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- given
...
- in
...
- the
...
- GDA94
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- datum.
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- This
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- supersedes
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- the
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- older
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- AGD66
...
- used
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- on
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- older
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- Tasmaps,
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- including
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- all
...
- the
...
- original
...
- 1:25K
...
- maps.
...
- Check
...
- the
...
- legend
...
- section
...
- of
...
- your
...
- map
...
- to
...
- make
...
- sure
...
- the
...
- datum
...
- matches
...
- your
...
- GPS
...
- points.
...
- For
...
- our
...
- purposes
...
- GDA94
...
- is
...
- equivalent
...
- to
...
- WGS84,
...
- which
...
- is
...
- the
...
- global
...
- standard.
...
- To
...
- convert
...
- a
...
- GDA94
...
- or
...
- WGS84
...
- grid
...
- reference
...
- to
...
- AGD66,
...
- subtract
...
- 112
...
- from
...
- the
...
- easting
...
- and
...
- 183
...
- from
...
- the
...
- northing.
...
- Hence
...
- if
...
- you
...
- mix
...
- up
...
- your
...
- datums,
...
- you
...
- will
...
- be
...
- about
...
- 150
...
- metres
...
- out.
...
There
...
is
...
a
...
good
...
discussion
...
of
...
this
...
stuff
...
at
...
http://www.utas.edu.au/spatial/locations/index.html
...
...
The
...
table
...
below
...
shows
...
all
...
the
...
GPS
...
points
...
recorded
...
in
...
the
...
thesarvo
...
guides.
...
It
...
is
...
designed
...
so
...
as
...
to
...
be
...
able
...
to
...
be
...
imported
...
into
...
your
...
GPS.
...
There
...
are
...
a
...
couple
...
of
...
things
...
you
...
can
...
do
...
with
...
this
...
data:
...
- Click
...
- on
...
- the
...
...
- Earth
...
- link,
...
- load
...
- up
...
- the
...
- KML
...
- file
...
- in
...
...
- Earth,
...
- zoom
...
- around
...
- and
...
- check
...
- it
...
- out!
...
- Click
...
- on
...
- theLIST
...
- link
...
- next
...
- to
...
- each
...
- point,
...
- to
...
- load
...
- up
...
- the
...
- 1:25K
...
- topo
...
- map
...
- centred
...
- on
...
- that
...
- point
...
- Click
...
- on
...
- the
...
...
- Maps
...
- link,
...
- to
...
- load
...
- the
...
- KML
...
- file
...
- up
...
- in
...
...
- Maps
...
- Click
...
- on
...
- the
...
...
- Earth
...
- link,
...
- and
...
- save
...
- the
...
- KML
...
- file
...
- to
...
- your
...
- computer,
...
- and
...
- use
...
- GPSBabel
...
- (
...
...
...
- to
...
- either
...
- load
...
- it
...
- directly
...
- to
...
- your
...
- GPS,
...
- or
...
- convert
...
- it
...
- to
...
- just
...
- about
...
- any
...
- possible
...
- format.
...
- GPSBabel
...
- isn't
...
- the
...
- easiest
...
- to
...
- use
...
- software,
...
- but
...
- its
...
- pretty
...
- damn
...
- powerful.
...
- Copy
...
- and
...
- paste
...
- the
...
- table
...
- below
...
- into
...
- Excel,
...
- then
...
- covert
...
- it
...
- manually
...
- to
...
- the
...
- required
...
- format.
...
If
...
you
...
have
...
any
...
GPS
...
co-ordinates
...
to
...
add
...
to
...
this
...
list,
...
send
...
them
...
to
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Guide |
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}. \\ {guide} <guide><gps ref='Climbing Guides' /></guide> {guide} |