[TowerTalk] Coax Connectors

[Jim Lux]

At 09:54 PM 1/10/2007, Roger Parsons wrote:
>... "When the Navy (I believe it was) and their
>contractors developed coax and the resulting
>connectors for use on board their ships they named
>them UHF" ...
>
>And a little Googling will show that the US Navy
>developed neither coax nor 'UHF' connectors!
>
>Coaxial cable: Herman Affel (1893-1972), Lloyd
>Espenschied (1889-1986): AT&T Bell Telephone
>Laboratories, 1929. (Siemens and Tesla had both also
>earlier patented the concept, but did not describe the
>application for radio frequencies.)


And, even earlier than that (1850s) Kirchoff described the 
propagation charateristics in a coaxial transmission line as being a 
case of a second order differential equation based on Kelvin's 
observation that propagation might be similar to the diffusion 
equation.  Sometime later Heaviside formulated a generic version of 
the transmission line equations derived on Maxwell's equations.

So, coaxial lines, in at least some forms, antedate Affel's work.


>UHF Connector:  E. Clark Quackenbush - 'Invented in
>the 1930's' - Amphenol
>
>73 Roger
>VE3ZI
>
>
>
>
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