The Atlas Status screen (Menu > Settings > GPS Settings > Atlas Status, or Menu > Diagnostics > GPS > Atlas Status) shows information related to your Atlas subscription and functionality.
Users will notice a change in the Std Dev and Diff Age readings from SBAS and Atlas. The algorithm that has always been used is 1 sigma on SBAS and 2 Sigma on Atlas. The 2 Sigma is the more accurate representation of signal error. For Atlas correction, Diff Age is 10-18 seconds.
The following table describes each field on the Atlas Status screen:
Field/Button | Description |
Version | Atlas service library version. |
Subscription | Atlas subscription |
Expiration Date | Subscription expiration date |
Tracking | Atlas tracking status |
Frequency | Frequency of Atlas satellite |
Satellite Longitude | Satellite location (longitude) that covers the area in which you will be working. |
Satellite Elevation | Elevation of Atlas satellite |
Satellite Azimuth | Azimuth of Atlas satellite |
BER | (Bit error rate) Relative strength of the correction satellite. The number can be from 0 to 500, with 0 being the best and 500 being the worst. If BER > 20 verify the antenna has a clear view of the sky to properly find and track correction satellites. For Atlas the numbers before and after the hyphen will be the same. |
Status | Current status level (possible values are Tracking and Converged). |
Correction Type | User-selected correction type |
Serial Number | GNSS serial number |
Station ID | Pseudo base station ID for troubleshooting purposes. |
Diff Age | Age of the corrections used in the DGPS calculation. For Atlas correction, Diff Age is 10-18 seconds. |
Atlas Tuning | Spot beam information for Atlas satellite in use by the REBEL receiver. |
Autoseed button | Set to On to have REBEL automatically use the last known position to reduce Atlas convergence time. Default is On. |