RE: [amsat-bb] No Stupid Questions, right? (focal point)

[Tony Langdon <tlangdon@xxxxxxxxxxxxxxxxxx>]

A related question is how does one find the phase centre of the feed
antenna?

Tony Langdon. 
Systems Development and Support. 
ATC Training Australasia.  Level 2 321 Exhibition St Melbourne  3000. 
Phone:  1300 13 1983     WWW:  http://www.atctraining.com.au 



> -----Original Message-----
> From: Edward R. Cole [mailto:al7eb@ptialaska.net]
> Sent: Wednesday, 9 May 2001 18:54
> To: amsat-bb@AMSAT.Org
> Subject: Re: [amsat-bb] No Stupid Questions, right? (focal point)
> 
> 
> Rich,
> 
> Focal point refers to the point in front of a dish where all radiation
> received is concnetrated to a point.  Phase center refers to 
> the point on a
> feed antenna that should be placed at the focal point.
> 
> Ed
> 
> >Ok then... what's the difference between "phase center"
> >and "focal point"?
> >
> >Rich
> >-------------
> >Rich Dailey, KA8OKH - Phyllis Dailey, KB4NPI
> >mailto:okh.npi@gte.net
> >http://home1.gte.net/web22jfw/
>  
> 
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