Jim Brown wrote:
> On Fri, 22 Jan 2010 20:16:59 -0800, jimlux wrote:
>
>> If you have a time delay between the two antennas (as opposed to a phase
>> shift), then the time delay sets the angle, frequency independent. Since
>> most folks use a hunk o' coax for the phasing, then you're good to go.
>
> Actually, the coax provides a TIME offset, NOT phase shift. There is a
> resulting phase shift from a TIME offset, that is proportional to
> frequency.
Yep..
>
>> If you're using phase reversing (e.g. in phase, out of phase) then it
>> doesn't work as well.
>
> When you reverse the wires in a system, you are not changing PHASE, you
> are changing the POLARITY. When you reverse the polarity, there is NO
> change in time (or delay) or phase, but you invert the waveform, and the
> signal is complex (fundamental plus harmonics, or carrier with
> sidebands), the signal is inverted at ALL FREQUENCIES.
Good point. I was careless.
In any case, phase reversing has a different sort of effect from a time
delay cable.
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