Recent GPS Issues with Vaisala AUTOSONDE AS14, DigiCORA® MW41 and MW31 Sounding Systems with Trimble DG14L GPS Receiver Module
In part of Vaisala Vaisala DigiCORA® Sounding Systems AUTOSONDE AS14, MW41 and MW31 there are issues with GPS reception. The problems in GPS reception have been found to be caused by Trimble DG14L GPS receiver module and problems appears only in some locations. At the moment only few customers are experiencing problems - many customers are not having problems at all.
The problematic DG14L GPS receiver module is manufactured by Trimble Navigation Limited and since May 18th, the GPS receiver module has had difficulties to receive GPS data in some locations. The manufacturer has released now the permanent fix for it. Meanwhile Vaisala has made two hot fixes to solve the actual problem.
The instructions and problem description on this page are applicable only to those Soundings Systems which have MRG113 GPS board in SPS311 Sounding Processing Subsystem.