It is also possible to use one of the existing low-bandwidth text formats on the upper or lower edge of the voice signal. The advantage being that more people could read it.
On Fri, Oct 23, 2020, 10:54 PM Al Beard <bear...@unixservice.com.au> wrote: > Hi all, > > I was looking at the M17 project and noticing their discussion > on callsign sending. Suggesting in 48 bits for Src and Dest, packing > the characters as RT11 filenames used to do. (Digital PDP-11 of 1975) > > What I notice in our HF mode 700D, it has quite poor data reliability > particularly in the "Txt MSG" which is where the Src and Dest data > may well be. > > Adding 96 bits to every frame is in my view way too many bits. > In our current modes eg. 700D, could we sacrifice every tenth frame > for source and destination? > > Thoughts? > > --------------------------------------------------- > Alan VK2ZIW > Before the Big Bang, God, Sela. > OpenWebMail 2.53, nothing in the cloud. > > > > _______________________________________________ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >
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