Reflection

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Hi, i think that reflection are important only at RF frequency and not at lower frequency because λ at RF is about half meter or lower while at lower ferquency λis bigger.

HI,

If you remember from basic study about transmision line you will understand that
in lower freq you have only R and G and high freq L, C.
So like our friend said that if you will connect battery [dc] to the line and check after a few cm you will get the same voltage.
but in rf [high freq] you are not.......

David

What makes you think that signals do not reflect at lower frequencies? Talk to some power systems engineer who is trying to stop lightning voltage transients from bouncing around a country and taking the grid down!

At lower frequencies the wavelength is so long that most uniformed engineers think they are seeing some sort of parasitic reactance rather than a reflection.

So, at lower frequencies (like 50Hz/60Hz in case of power), signals do reflect, but to see the effect the circuit too should be long enough like the natiional power grid? Is that correct?

Btw, what did you mean by "uniformed" engineers? Was it a typo for uninformed?