Sun Coast Amateur
Radio Club Society

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====== Mercury (VARA alternative) ======
[[https://github.com/Rhizomatica/mercury |Mercury]] is a Free and Open Source transport layer that uses [[wp>Orthogonal_frequency-division_multiplexing |OFDM]] to transmit digital messages over HF (same as VARA does).  You might remember hearing of OFDM when we played around with [[/blog/2024-11-22/rattlegram_-_sms_via_audio_and_radio |Rattlegram]] two years ago...  Because VARA is closed sourced, the way that RF layer of Mercury is **not** compatible with VARA.  However, the API layer is.

Mercury is still experimental so it hasn't been integrated into Winlink yet, but hopefully soon.

Here's a good presentation with demo and Q&A by KM6LYW.  It's over 42 minutes long so I recommend watching it at 1.5x speed.

{{ youtube>M6rwIhG9ZMY? }}


~~DISCUSSION~~