need info about microwave labs (vector network analyzer)

Hello every one,

I need information about measurments on vector network analyzer (VNA) most probably on practical aspect , do you guys have any material regarding measurements on VNA , for example any practical approach book[/b][/b](tutorial etc etc) that tells me the complete detail of measurments on VNA
plz guys i need it on urgent basis.Waiting for ur response
Thanks in advance

http://www.vnahelp.com/appnotes.html

http://www.home.agilent.com/agilent/...fr=-34819.0.00

http://www.home.agilent.com/agilent/...fr=-34819.0.00