> i'm so terribly sorry i didn't read group's guidelines.
> i didn't know i wasn't allowed to ask for homework assignments.
> the problem is that our proffesor didn't teach antenna well. he spoke
> about them only 30 minutes.
> also the text book he intorduced us doesn't explain much about antenna.
> (the book is "Data Communications, Computer Networks and Open Systems"
> by Fred Halsall.
> we have only studied chapter one & two.)
>
> thanks alot for ur help. i searched myself 'n here is what i came up
> with (i'm sorry if i'm not able to explain well in english):
>
> 1. maybe the main lobe of our directional antenna is not directed
> toward the receiver.
> (the end...