COSPAS-SARSAT Analyzer Toolkit for LabVIEW extends the built-in analysis capability LabVIEW with functions and tools for COSPAS signal analysis, visualization, and the processing of long and short message formats. With this toolkit, the user can rapidly develop custom applications for research, design, characterization, validation, and test of COSPAS transmitter systems. The COSPAS Decoding Toolkit for LabVIEW complements the PXI-5661, PXIe-5663 and PXIe-5665 RF vector signal analyzers. By combining the functionality of the RF vector signal analyzer and the COSPAS Decoding Toolkit, users have a virtual instrumentation platform with COSPAS signal analysis capabilities.