View Single Post
Old 18-Jan-2012, 6:45 AM   #17
GroundUrMast
Moderator
 
GroundUrMast's Avatar
 
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
As I suspected, the "antenna" shown on Youtube and in the drawing has extremely high SWR (in excess of 2000:1) in the FM broadcast band which means it will simply reflect almost all of the signal back into the air, delivering far less signal to the radio than a stock antenna. The antenna does not come close to usable until you look at frequencies in the upper cell-phone bands and terrestrial microwave region... but is still far from optimum in design.

At frequencies above 1000 MHz, the antenna shows modest gain to the front and rear.
Attached Files
File Type: pdf Youtube Semi-Fractal.pdf (36.0 KB, 1872 views)
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

(Please direct account activation inquiries to 'admin')

Last edited by GroundUrMast; 18-Jan-2012 at 7:07 AM.
GroundUrMast is offline   Reply With Quote