Leader in Differential GNSS Solutions Worldwide

Satellite Coverage Maps

OmniSTAR is pleased to offer our customers worldwide correction coverage. To help you select the satellite that is best for your region, please review the satellite frequency list below.

For instructions on how to change to a different satellite frequency, please check your receiver manual or contact our Customer Service team. For updated frequency settings and receiver instructions please visit: www.trimble.com/Positioning-Services/frequency-change.

Urgent OmniSTAR beam change for North America

Due to a change being required by our satellite beam provider, the OmniSTAR satellite beams in North America will transition to one new single satellite beam. The three OmniSTAR MSV beams are now being consolidated into one single beam, CONNA, covering all of North America including most parts of Canada. The single beam, CONNA, will go live on Tuesday June 15, 2021. All users of the current MSV(-C,-E,-W) beams will need to migrate to the new CONNA beam during a 6 week overlap period, with a frequency and baud rate settings change on their GNSS receivers before July 26, 2021.

For more information, contact Customer Care.

The following graphs show the coverage of each individual satellite. Red dots are reference stations used within the current network.

CONNA – North America

AMSAT – North & South America

AUSAT – Asia Pacific

ESAT – Europe and Africa

IOR – India, CIS, Middle-East

OmniSTAR offers global correction coverage for our land-based applications. Please refer to the table below to determine which satellite frequency you should use in your area. You can also view coverage maps showing the areas covered by each beam in the sections below.

If you have any questions about which frequency is best for you to use, please feel free to contact us for assistance.

OmniSTAR Satellites and Regional Coverage (as of June, 2021)

Coverage Area

Satellite Name


Data Rate*

Americas Region:
North AmericaCONNA1555.78851200
North, Central and South America including the CaribbeanAMSAT1545.93751200
Europe / Africa Region:
Europe, Africa & Middle-EastESAT1539.91251200
India, CIS, Middle-EastIOR1539.93251200
Asia Pacific Region:
Australia & Pacific RimAUSAT1539.96251200
* A data (baud) rate of 1200 equals a symbol rate of 2438. A data (baud) rate of 600 equals a symbol rate of 1219.