[BC] Question for Richard

[Harold Hallikainen]

I haven't seen earlier stuff in this thread, but thought I might comment.
Wavelength is V/f or velocity over frequency. For free space, I use 300e6
meters per second for V. In coax, multiply V by the "velocity factor" to
get the velocity of the signal in that cable. Then drop it in the formula.
The formula also works for other kinds of waves, such as sound in various
media, etc.

Harold


> Richard -
>
>   I don't know if you saw the thread;  not too far back I had mentioned it
> would be a bit easier for me to get my brain wrapped around the idea of
> what's happening when
> coax is "electrically longer when it is physically" - by literally drawing
> a
> picture or two of it....
>
>   I was wondering about some more or less real world scenarios , what's
> happening when it's right, when it's wrong, with and end fed antenna vs
> center fed, and such.
>
>   It all started 'cause they finally talked me into taking some of the ham
> tests, and right off quick I discover 'they' use
> weird numbers.  (Like, 468/F(mHz) rather than 492/f(mHz) for wavelength,
> and
> such... )
>
>   Have you ever drawn out stuff like this, or do you know where I might
> find
> this sort of thing?  I can look at tables of numbers all day, and even
> remember a few, but somehow stuff just "makes more sense" once I see it as
> a
> diagram, or picture...
>
> Jason
>
>    Have you ever drawn out such
>
>
> _______________________________________________
> This is the BROADCAST mailing list
> To send to the list, email: broadcast at radiolists.net
> For sub changes, archives and info on this other lists:
> http://www.radiolists.net/
>


-- 
FCC Rules Updated Daily at http://www.hallikainen.com