RadioBanter - View Single Post - No antennae radiate all the power fed to them!

[email protected] · November 2nd 14, 12:03 AM posted to rec.radio.amateur.antenna

Frank Turner-Smith G3VKI wrote:
On 01/11/14 21:38, wrote:
As a problem for the student, how big would a wave guide have to be to
be able to transfer 7MHz?

I'll guess at 34.8488m x 15.7988m by scaling the dimensions for 5.85 to
8.2GHz. (C Band)

Sounds in the ball park to me.

For further reading enjoyment and why there is no EM field inside of RG-8:

http://en.wikipedia.org/wiki/Cutoff_frequency

--
Jim Pennino