Vara Large File Transfer Video via NVIS


Tony
 

All:

Just posted a Youtube video of Vara downloading 3 fairly large image files via Winlink. There was considerable multi-path between myself and KB3PCY which is typical for nighttime NVIS on 80 meters. Managed to maintain good s/n throughout the session.

The video shows how Vara switches to it's lowest data rate (44 bps) between downloads; the low-speed handshake appears to be by design and doesn't seem to have anything to do with changing band conditions.

What's interesting is how well Vara maintained such good throughput despite throttling down between downloads.

I plan on running the same test with 3 small files to see how the mode behaves.

Video Link: https://www.youtube.com/watch?v=B97P6oTz0MI

Tony -K2MO

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