Magellan GPS PROMARK X, User Manual

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Introduction
ProMARK X
1-1
Chapter 1 INTRODUCTION
The ProMARK X
The ProMARK X-CM is a rugged, hand-held, 10-channel SPS code and carrier
phase code receiver that is designed to collect pseudorange and carrier phase
data. The ProMARK X collects pseudorange data only. Both models were
developed primarily for land-based professionals who require a high level of
accuracy in marking and relocating geographical sites. When used with
position averaging and differential, it is an excellent tool for some third-order
surveys, and is an ideal tool for GIS data collection, positioning, and
navigation.
Both receivers are fast, powerful, and very easy to use. Only a few keystrokes
are needed to access any features. You can also reset many of the unit’s
operating and display parameters, including operation mode (2-dimen-
sional, 3-dimensional, or automatic mode switching) position coordinate
system (geodetic, UTM, British grid, Irish grid, Malaysian, RSO, MGRS,
Indonesian Southern Zone, UPS, or user-entered), and altitude reference.
The ProMARK X displays altitude as either height above the ellipsoid (of the
selected datum) or as orthometric height (height above sea level). The
geoidal height used can be from a unit-maintained model or a user-entered
value.
The ProMARK X stores up to 500 user-stored waypoints, and as many as 10
routes of up to 20 legs each. In addition, the unit has sufficient memory to
allow the unit to log and store up to 9 hour’s worth of data in the field,
without the need for a separate data logger. (The data is downloaded to a
PC for post-processing.) The buffer is protected from inadvertent power loss
by an internal rechargeable lithium battery.
The ProMARK X is generally capable of 12 meters (RMS) horizontal accuracy
in autonomous operation and in the absence of selective availability (SA).
This can be improved by using the Magellan Post-Processing Software to
calculate differential; post-processed differential with the ProMARK X can
achieve 3 meters horizontal accuracy.
Centimeter (15mm
±
3 ppm) and submeter accuracy (0.9 meters RMS) can
be obtained by using the carrier phase module for the Post-Processing
Software and a multipath-resistant antenna with the ProMARK X-CM.