Ag Leader GeoSteer Operation Manual - Manual (Page 117)

OmniSTAR
Operator’s Manual 103
OmniSTAR
Note: The OmniSTAR button is only active if the GeoSteer system detects an OmniSTAR Demodulator installed on the
GeoDock.
OmniSTAR is a wide-area differential GPS service, using satellite broadcast techniques. OmniSTAR offers GPS correction
services that improve the accuracy of a GPS receiver. The OmniSTAR services include dual frequency (L1/L2) carrier phase
solutions. The accuracy depends on satellite geometry, local conditions, receiver capability, and other variables. Typically, the
L1/L2 solutions from OmniSTAR XP provide horizontal accuracies of +/- 3.1 to 3.9 inches (8.0 to 10.0 cm) and OmniSTAR
HP provide horizontal accuracies of +/- 2.0 to 3.9 inches (5.0 to 10.0 cm). The OmniSTAR HP and XP services require
OmniSTAR-capable dual-frequency GPS receivers. By using L1/L2 atmospheric corrections and carrier phase techniques,
these services achieve higher levels of accuracy.
Note: OmniSTAR correction signals are proprietary, and a subscription must be purchased from the OmniSTAR Corporation
to receive a subscription authorization.
The OmniSTAR signals are transmitted on different beams around the world. The GPS receiver must be configured to listen to
the correct beam for its location.
To obtain an OmniSTAR subscription, phone your local OmniSTAR office:
• North and South America: +1 888-883-8476 or +1-713-785-5850
• Australia, Asia Pacific, and China: +61-8-9322-5295
• Europe/CIS and Middle East: +31-70-317-0913
• Africa: +27 21 404 1861
Visit: http://www.omnistar.com for more information.
OmniSTAR can usually provide a subscription over the phone with a credit card and you can see the subscription status
change. OmniSTAR offers a quick, efficient subscription initialization and renewal service available 24 hours a day.
There are two levels of OmniSTAR service available with the GeoSteer system:
• OmniSTAR XP - XP is defined as better than 7.9 inches (20 cm).
• OmniSTAR HP - HP is defined as better than 3.9 inches (10 cm)
The selection of XP or HP in your receiver is determined by the subscription sent to a receiver when it is activated for
OmniSTAR.
Note: GeoSteer requires an OmniSTAR Demodulator to be installed on the GeoDock to decode the OmniSTAR information.
Contact your AutoSteer Dealer to acquire this if an OmniSTAR is required.
The OmniSTAR screen contains the following options:
• General – Provides the basic information about the OmniSTAR subscription.
• Accuracy – Allows user to configure initial accuracy of the system at boot up.
• Channel –Allows the user to set the correct channel or beam for the location the system is running.
To access the OmniSTAR screen, press the OmniSTAR button from the GPS screen.