Good morning, Robin - From the main page:
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.. scroll down to VARA HF 4.7 Quick guide. Installation will be similar for the latest version of the software.
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There will be minor variations on the specifics depending on radio (cables to connect, etc), which Windows operating system is being used (how to find sound settings, etc).
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The videos by Wavetalkers are pretty good as well.
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Welcome!
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73, Ken NB6S
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Ken Crouse