Keith Dysart wrote:
Roger Sparks wrote:

Ooooppps. That should have been Vg(t) = Vf.g(t) + Vr.g(t)

but doesn't this describe the standing wave?

Not by itself. It is simply the function describing the voltage at
point g.

The net total voltage at point g is the standing wave
voltage that is present at that point.
--
73, Cecil http://www.w5dxp.com

On Mar 22, 9:36*am, Cecil Moore wrote:
Keith Dysart wrote:
Roger Sparks wrote:
Ooooppps. That should have been Vg(t) = Vf.g(t) + Vr.g(t)

but doesn't this describe the standing wave? *

Not by itself. It is simply the function describing the voltage at
point g.

The net total voltage at point g is the standing wave
voltage that is present at that point.

I suppose that is a name you could use, but do you still
call it "standing wave voltage" when there is no
reflected wave, i.e. Vr is 0 for all time. There is
no standing wave when Vr is always 0.

...Keith

Keith Dysart wrote:
Cecil Moore wrote:
The net total voltage at point g is the standing wave
voltage that is present at that point.

I suppose that is a name you could use, but do you still
call it "standing wave voltage" when there is no
reflected wave, i.e. Vr is 0 for all time. There is
no standing wave when Vr is always 0.

We are not discussing matched systems. If the total
RMS voltage differs from the RMS forward voltage,
then Vr is NOT zero.
--
73, Cecil http://www.w5dxp.com

On Mar 22, 10:55*am, Cecil Moore wrote:
Keith Dysart wrote:
Cecil Moore wrote:
The net total voltage at point g is the standing wave
voltage that is present at that point.

I suppose that is a name you could use, but do you still
call it "standing wave voltage" when there is no
reflected wave, i.e. Vr is 0 for all time. There is
no standing wave when Vr is always 0.

We are not discussing matched systems. If the total
RMS voltage differs from the RMS forward voltage,
then Vr is NOT zero.

True for this example. But it is generally unwise to pick
names or descriptions that will have to change when
the component values are changed.

...Keith

Keith Dysart wrote:
Cecil Moore wrote:
We are not discussing matched systems. If the total
RMS voltage differs from the RMS forward voltage,
then Vr is NOT zero.

True for this example. But it is generally unwise to pick
names or descriptions that will have to change when
the component values are changed.

Picking nits won't change the laws of physics.
--
73, Cecil http://www.w5dxp.com