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VAISALA ________________________________________________________________________ 3
Table of Contents
CHAPTER 1
GENERAL INFORMATION............................................................................ 5
About This Manual ................................................................... 5
Contents of This Manual ....................................................... 5
Related Manuals ................................................................... 5
Feedback............................................................................... 6
Safety......................................................................................... 6
General Safety Considerations ............................................. 6
Recycling .................................................................................. 6
Trademarks ............................................................................... 6
License Agreement .................................................................. 7
Technical Support.................................................................... 7
CHAPTER 2
PRODUCT OVERVIEW.................................................................................. 9
Introduction to DigiCORA and RT20A....................................9
CHAPTER 3
OPERATION................................................................................................. 11
Getting Started ....................................................................... 11
Standard RT20A Sounding Procedure ............................... 12
Step 1: Powering Up the System .......................................... 12
Setting Station Position ....................................................... 13
Step 2: Aligning the RT20A ................................................... 15
Step 3: Starting a New Sounding.......................................... 15
Step 4: Preparing the Balloon............................................... 15
Steps 5 and 6: Entering Calibration Coefficients................ 16
RS92-D................................................................................ 16
Cable.............................................................................. 16
Radio.............................................................................. 19
RS80-67 .............................................................................. 21
Step 7: Selecting Triggering Profiles ................................... 23
Step 8: Entering Station Data and Front Direction Angle .. 24
Steps 9 and 10: Tuning the Receiver and Setting
RT20A in AUTO Tracking Mode ............................................ 27
Sounding Status Displays ................................................... 29
PTU Status..................................................................... 29
RDF Status..................................................................... 30
Step 11: Releasing the Balloon............................................. 32
Step 12: Tasks during Flight ................................................. 35
Data Monitoring (Sounding Processor)............................... 35
Sending Messages.............................................................. 35
Step 13: Ending the Sounding .............................................. 35
