A new paper has been released by Dr David Morgan 2W0CXV on using the RTL2841 DVB TV Dongle as a SDR processor with SpectrumLab.
The paper Techniques for using the RTL Dongle for Detecting Meteors covers the setting up and use of the dongle to receive meteor pings from the Graves Radar on 143.050 MHz.
It can be downloaded from the Meteor Detection Projects page of the BAA-RAG website http://www.britastro.org/radio/projects/meteorproj.html
Join the BAA-RAG Yahoo Group at http://groups.yahoo.com/group/baa-rag
Download the free publication RAGazine from http://www.britastro.org/radio/downloads.html