[GreenKeys] Loop over IP

[Harold Hallikainen]

On Mon, August 1, 2022 2:48 pm, Paul Wills (CKT&T) wrote:
> https://sites.google.com/site/morsekob/home
>

That's interesting. The use of positive and negative numbers for mark and
space is clever. I think that sending the duration of a mark or space
could be problematic. What if someone stops sending, and there is a 10
second space (using Morse). I assume the space is not sent until we know
how long it is, but we don't know until there is a mark. I think sending
the time of each mark to space transition would work. If you used a signed
32 bit integer and counted the milliseconds from when the connection was
established (assuming it is TCP and there IS a connection), it would not
roll over for over 2 million seconds (24 days). Or you could go to 64 bit
signed integer and last almost forever. The receive side would increase
its buffer delay as necessary to ensure timing is maintained.

TCP would be nice since there is guaranteed delivery. It's also
bidirectional, so it's easy to have a QSO.

If you were to send teletype over this, there would be a transmission of a
32 or 64 bit number every 22 ms (tape speed with one stop bit), so that
would be 1.45 kbps with 32 bit and twice that with 64 bit.

Harold
https://w6iwi.org