Instruction Manual

Chapter 3 ________________________________________________________________ Operation
VAISALA_______________________________________________________________________ 23
3. Remove the radiosonde from the package, free the antenna, and
take the unwinder out of the package.
4. Make sure the plastic lip, under which the string runs, is level with
the unwinder bottom plate. If the lip is bent, bend it gently back to
level the position.
0601-050
Figure 12 Unwinder Details
Proceed to perform the sounding preparations.
Performing Sounding Preparations
When performing the sounding preparations, the Vaisala Ground Check
Set GC25 is connected to the DigiCORA® sounding system via cable
and operated with the help of the DigiCORA® sounding software.
NOTE
If you are using DigiCORA® Sounding System MW21, software
version < 3.12, or MW15, MW12 or MW11, software version < 8.311,
refer to the Ground Check Set GC25 User’s Guide for information on
using the GC25 in the stand-alone mode.