
A well designed rugged PDA/GPS/camera
for field mapping and GIS. 10 hours of field
use on 2 AA batteries!!
The Magellan MobileMapper 6
handheld is accurate to 2 -
3m when used in conjunction
with a differential unit, such as the MobileMapper
Beacon or Omnistar DGPS unit. Running Windows Mobile,
it
features
Bluetooth cable-free technology for the DGPS link.
It can run off the shelf GIS software
such as ESRI's ArcPad.
From
$1389 
Link to more details on Mobile
Mapper 6.
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Price.
For field use, the Mobile Mapper
6 can be used standalone (4 - 15 metre accuracy).
For better accuracy, connect
to the followingr:
1. 2-3 metres - CSI (MBX-3
and MGL3 antenna) or JRC DGPS
receiver, mounted professionally with rechargeable battery
in a backpack or in a waterproof
carry case,
using Bluetooth serial connection.
2. Half metre - Hemisphere
R130 DGPS
receiver in either free-to-air mode or paid Omnistar
mode, with Bluetooth serial.
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Thales
DGPS Beacon Receiver will work with many
Garmin GPS. This
achieves
consistent
accuracies
of 2 - 3 metres, rather than 4 -15 metre. Really useful
for field sciences when re-visiting points later.
Price 
This DGPS beacon receiver on a belt,
can connect to your Garmin GPS receiver using the cable
supplied. Powered
by 4 standard AA batteries, and conveniently worn in
a
belt-mounted carry case. Specifications on PDF
file.
Thales
beacon receiver takes advantage of the free to air DGPS
service from the Australian Maritime Safety Authority.
This
AMSA
service is active over the length of the Queensland coast,
and also in the Sydney, Melbourne, Albany (WA),
Perth,
Adelaide, Darwin and Port Hedland (WA) areas. You get
the signal free, even inland for hundreds of kilometres.
For more specific coverage, please phone 1800 477477.
AMSA
beacon signal- more information 
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