Klystron wrote:
"Jeff" wrote:

So given a typist of comparable proficiency to the Morse operators (
meaning probably in the region of 80 - 100 wpm) it is most likely that the
text message would win the race; depending on system delays, which again is
not a fair comparison to face to face Morse. You could wait for hours, or
days, or even years for the bands to open to a particular location!!

It all goes to show that you must compare like with like. I am sure that the
Morse operators would have also lost if they were forced to send extraneous
letters as they cycled through to find the correct one, as the text'er had
to.



Ultimately, we need to treat these various modes as methods of
sending text - no more and no less.

Two methods that send the same text
are competing modes, regardless of whether keyboards, a telephone keypad
or a telegraph key is used to send it.

Respectfully I disagree. None of these methods compete with each other.
They are just different applications of technology, some simpler, some
more complex, and some quite strange (read feld-hell) Users can use
whatever mode they are interested in, and are on equal footing.



A method that sends those blocks
of text faster and with fewer errors is better. A slower, more error
prone method is inferior.

Here is some difficulty when we try to apply your description to HF. It
is difficult to get a high data rate via HF due to the relatively noisy
conditions.

An example is Digital SSTV vs analog SSTV. On the face of it, digital
SSTV has it all over the old fashioned variety. No image size
restrictions, digital accuracy, and the jpeg you send looks the same on
the recipient's end. The problem is under certain conditions that exist
fairly often, the analog SSTV picture is sent, looked at and stored,
while the digital version never arrives, because noisy condx causr the
receiving end to send a continual stream of "Retry please".

NOw to apply this to text modes, this would make PSK31 inferior to
PSK64, 128. and so on. But the psk31 text reads about the same speed,
and takes up less bandwidth.

- 73 de Mike N3LI -