When measuring phase shift in degrees, it is relative to a given
frequency. So, a 180 degree phase shift at 1 kHz would be the same time
delay as a 360 degree phase shift at 2 kHz.
A polarity reversal is independent of frequency/wavelength. When it used
to go up, it now goes down and vice versa. It is also a binary function:
in or out of polarity.
I think 99% of the time when we say 180 ° phase shift, we mean polarity
flip as we want it at all frequencies to be the same.
On 2015-05-06 8:23 PM, Tom Fine wrote:
> So is it correct to say that there can only be a polarity reversal
> (180-degrees) whereas there can be any degree of phase shift?
> -- Tom Fine
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada 647 479 2800
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