Thread: Rhombics
View Single Post
  #43   Report Post  
Old October 2nd 06, 02:44 AM posted to rec.radio.amateur.antenna
Yuri Blanarovich Yuri Blanarovich is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 170
Default Rhombics


"Roy Lewallen" wrote in message
...
Antenna modeling tools aren't intended to model propagation effects. But
the stronger the signal radiated in the right direction, the stronger the
received signal will be. And the strength of the radiated signal in each
direction is what the antenna modeling program shows.


True, not argument there.

As for the "effect of capture area", the "capture area" of an antenna is
just another way of stating the gain. This information is what you get
from an antenna modeling program.

Roy Lewallen, W7EL


What I had in mind is the difference in "capture area" related to physical
size of antenna like rhombic vs. similar gain, say Yagi. It appears that
rhombics perform better than corresponding Yagi thanks to larger physical
size (5 - 10 wave lengths) interacting with the environment (more like
diversity effect?). It seems that rhombics perform better than calculated
gain/capture area figures.
We will have opportunity to do some tests of rhombics farm vs. some classics
soon. It will be interesting to see the results.

73 Yuri