basic information about PNA

Hi friends

I need basic information about PNA such as its block diagram and fundamental differece with another network analyzers. Is there anyone that introduce references about it?

Thanks

See this link:

http://cp.literature.agilent.com/lit...989-7604EN.pdf

Hi buddy
It might help you:

http://www.home.agilent.com/agilent/...0&cc=US&lc=eng

:D