Specifications

Navigating with ProMark3

The ProMark3 includes a wide range of navigational capabili-

ties that you will find useful in your day-to-day surveying and

mobile mapping operations. Two useful navigation features

are:

• The map screen can be utilized to help you find a project

site.

• The ProMark3 serves as an excellent reconnaissance tool.

You can enter the known coordinates of the feature you

wish to reckon as a waypoint, and use ProMark3 to navi

gate to within 3 meters (10 feet) of the feature in the

field. Be sure to select the correct map datum and coordi-

nate system (use the USER option from the Map Datum

list to define a custom map datum).

ProMark3 includes the capability to utilize SBAS (Space-

Based Augmentation System).

SBAS includes the Wide Area Augmentation System (WAAS)

for the North American continent and the European Geosta-

tionary Navigation Overlay System (EGNOS) to provide im-

proved positioning accuracy.

These systems calculate errors in the GPS signal, then trans-

mit correction messages to capable GPS receivers. Typical ac-

curacy with SBAS is three meters, although this accuracy can

be degraded by multipath reflections and poor satellite geom-

etry.

ProMark3 can also deliver real-time DGPS position fixes for

your navigation using the MobileMapper Beacon from Magel

lan or any other external corrections receiver.

ProMark3 RTK can deliver RTK position fixes that you can use

for your navigation.

More information on SBAS

is available at http://

www.faa.gov/asd/interna-

tional/sbas.htm

More information on

WAAS is available at the

FAA web site http://

gps.faa.gov/Programs/

WAAS/waas.htm.

More information on

EGNOS is available at

http://www.esa.int/

EGNOS/.