On Mon, Jun 3, 2019 at 3:26 PM David Gilbert <xdavid@cis-broadband.com>
wrote:
>
>
> The DSP found in almost all modern rigs is itself "processing". It
> takes the analog signal from the antenna, slices and dices it to bits,
> runs it through various software algorithms, transforms it in both time
> and frequency domains, and reconstructs it to audio.
>
>
"Slices and dices it to bits" ... nice pun, Dave! :-)
> And what is so special about audio? It is merely one of our senses.
> Sight is also a natural sense, and if some of us (disclaimer ... I've
> never done a RTTY contest in my life) prefer to "decode" our received
> information visually (i.e., read text) what makes that inferior to
> hearing it? Yes, a digital mode has the potential to automatically load
> contact information into the log, but what part of typing is a
> fundamental ham radio activity (especially since I can accomplish pretty
> much the same thing in a CW or SSB contest just by clicking on the
> callsign in a band map)? You still have to read to comprehend the QSO.
> What makes hearing fundamental to ham radio while seeing isn't?
>
> It's kind of funny in a way ... most humans can listen faster than they
> can read. It's not like reading gives you an advantage. Both hearing
> and seeing require brain translation to achieve comprehension.
>
>
>
The original Morse telegraph (and others) worked by imprinting the dots and
dashes on a paper tape and then decoded by reading it. Imagine doing a
contest that way! Then someone figured out that it was faster to learn to
decode the messages by ear.
73, Zack W9SZ
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