Loading Coils; was : Vincent antenna
On Sat, 8 Dec 2007 22:58:42 -0500, "AI4QJ" wrote:
Remember, the system was *measured* to be 1/4W so the reflections must cause
a short every 125 nsec, no matter what is happening in between.
Hi Dan,
Keith was quite specific to separate the transient state from the
steady state such that a short is not available "every 125 nS." Most
125 nS, perhaps, but not initially and so not "every 125 nS." Trivial
distinction on the face of it, perhaps. When paired up with an
absolute statement that has been "proven" to be universally true, then
trivial is enough to sink the Titanic.
The smith chart and
phaser diagrams should work and are equivalent to using math.
There are two solutions: transient and steady states; there are two
maths. Cecil, in the same breath, manages to jump from one to the
other enough that you should be acquainted with both by now - or you
will be when you suddenly find yourself facing a paradox: Like why is
the band that is playing "Nearer, My God, to Thee" is at such an odd
sloping angle on the boat deck?
Fortunately it takes only a little effort to follow one line, and to
drill down to an absurdity. His proving Tom's delay was no better
than his own measurement demonstrated this easily. The drilling down
was in simply noting the particulars and skipping all the fluff of
trivial sidebars. Most folks find the fluff attractive and chase it
to no conclusion instead (that is how this thread accumulated 600
postings).
Keith, on the other hand, has the discipline to simply stick to one
issue, and drill down. Patience brings rewards in the end.
73's
Richard Clark, KB7QHC
|