RadioBanter - View Single Post - An antenna question--43 ft vertical

Ian Jackson[_2_] · July 10th 15, 11:56 PM posted to rec.radio.amateur.antenna

In message ,
writes
Ian Jackson wrote:
In message ,
writes
Ian Jackson wrote:

Even when the only transmission line consists the output connector of
the SWR meter, and maybe an inch of internal coax, there will still BE a
standing wave - but it will only be a tiny portion of longer one.

There will NOT be standing waves and there will not be a voltage
maximum and a voltage minimum unless there is a transmission line.

Are you saying that for a standing wave to qualify as a standing wave,
the transmission line needs to be long enough for there to be a voltage
maximum a voltage minimum?

I am saying that if the connection between the two things of interest
is short enough in terms of wavelengths at the frequency of interest,
the connection no longer functions as a transmission line, there are
no standing waves, but the measurment we call SWR still exists.

Pray tell me exactly (in wavelengths) when something which is too short
to be a transmission line suddenly changes into something which IS long
enough to be a transmission line.
--
Ian