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Old February 25th 15, 11:38 AM posted to uk.radio.amateur,rec.radio.amateur.equipment
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Default What is the point of digital voice?

Brian Reay wrote:
On 25/02/15 10:39, gareth wrote:
"rickman" wrote in message
...

I thought it might be that, but it still makes no sense to me. Who or how
does changing the direction of rotation of a rotating vector change its
"size". Are you defining size as the rotation so that going from a + to
a - is like reversing the direction of a vector? I think most people
would consider the "size" of a vector to be the magnitude which is
independent of phase angle and so rotation, no?

Perhaps you can explain this with a little math?


Not my gibberish, refer to the original posting ...

-----ooooo-----

From: "Brian Reay"
Newsgroups: alt.engineering.electrical,uk.radio.amateur
Subject: Phase noise
Date: Sat, 13 Dec 2003 10:21:54 -0000
Message-ID:


The term e^(-jwt) isn't some magical time machine relating to "minus
time", e^(-jwt) is simply another way of writing 1/(e^jwt) which
is a value that decreases as t increasing.



See, he has trimmed his part, which clearly didn't refer to the true
usage of negative frequency. I simply over estimated is ability to grasp
the meaning of what I'd said without more detail. This was obvious as he
also claimed claimed that division was impossible with complex numbers.

He will attempt to drag this out, as he always does, but a look in the
archive will show his claims to be nonsense. He drags this up from time
to time, generally after a drubbing, He really doesn't like being proven
wrong. Look at the date, he has been dragging this up with boring
regularity since then. I've lost count of the times it has been explained
to him. He has finally got the idea of the clockwise rotating phasor. He
struggled with the idea that, as the phasor rotated, the angle became
more negative, and thus decreased. eg -20 -10


That Gareth is still stewing over the correction you gave him 11 years ago
underlines his mental instability.

--
STC // M0TEY // twitter.com/ukradioamateur
 
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