Two WAAS Antennas Decomissioned, Some GPS Units Affected

[sv_bruadair]

Just saw this posting from the FAA.




WAAS Critical Update Information

On July 31, 2007, the FAA will decommission WAAS satellites 122 and 134, leaving satellites 135 and 138 for WAAS differential corrections in North America.

In all Hemisphere GPS receivers with a WAAS application, shipped before April 2007, the WAAS firmware does not recognize satellites 135 and 138 when performing an auto-search. In order to continue receiving WAAS differential corrections after the July 31, 2007 cutoff date, Hemisphere GPS receivers must have updated WAAS firmware loaded onto their systems or have satellites 135 and 138 manually selected through a terminal communication program.

Note: This issue only affects systems with SLX, SX1, and SX2 receivers.
(The products affected are listed below.)

Additionally, if your receiver was shipped after April 2007, or if you are currently running firmware versions 6.8J (for SLX2 or SX1/SLX3 receivers) or version 6.8K (for SX2 receivers), you are not affected by this issue.

Note to eDif users with SX1 or SX2 receivers: After installing the WAAS update, please select the link below for additional system update information.

WAAS Satellite System Reconfiguration for e-Dif Users

If you need any assistance with or have questions on updating your receiver, please contact your dealer or Hemisphere GPS Technical Support.

If you need any assistance with or have questions on updating your receiver, please contact your dealer or Hemisphere GPS Technical Support.

Please select your product from the list to download to the appropriate installation instructions and firmware.

PRODUCTS AFFECTED

All Hemisphere GPS receivers (including Outback, Satloc, and CSI Wireless)

DGPSMax

MiniMax

PowerMax

Seres

Crescent R100 Series

Crescent A100 Series

Axis 3

Outback S

Outback S2

SLXg

SLX300

SLXg3

SX1 OEM

SX2 OEM

AgIQ

M3

LiteStar

LiteStar II (Air, Logging system)

Satloc Lite

ForestStar

AirStar

VS100 Series

V100 Series

Vector Sensor

Vector PRO

Vector OEM