[Amps] Hmmmm...Legal limit boiled the oil in the cantena

[Roger Parsons]

Actually, antennas need TRAVELLING waves to radiate. Standing waves are a secondary effect in some (just about all practical) antennas which cannot happen without travelling waves - think about it! Antenna efficiency is another matter altogether related to many different factors.

73 Roger
VE3ZI



--- On Thu, 8/4/10, Carl <km1h at jeremy.mv.com> wrote:

> From: Carl <km1h at jeremy.mv.com>
> Subject: Re: [Amps] Hmmmm...Legal limit boiled the oil in the cantena
> To: ve3zi at rac.ca, amps at contesting.com
> Date: Thursday, 8 April, 2010, 20:42
> 
> 
> > "Standing waves on the antenna are necessary for it to
> radiate. They are 
> > not
> > necessary to transfer power from the plate of the
> tube.
> >
> > I hope that Bill Orr book arrives soon.
> >
> > 73
> > Gary  K4FMX"
> >
> > So that is why rhombics and other travelling wave
> antennas don't work?
> >
> > :-)
> >
> > 73 Roger
> > VE3ZI
> 
> 
> Unterminated ones have high standing waves while terminated
> ones burn half 
> the RF in the resistor. Anything can be made to radiate and
> even show gain 
> if it is big enough.
> 
> Carl
> KM1H
> 
>