measure p1db

P1dB:you can measure it with a VNA with power sweep function
PIM3:typically, with a spectrum analyzer, two CW source and a power couple
you may visit the www.agilet.com
and search about the measurement of amplifier
you will find detail answers

Hi,

Check the link below:

http://w*w.minicircuits.com/appnote/amp3-4.pdf

regards,
Al

also u can measure the IP3 with VNA , but it must be equiped with third port ot make it comtrol a signal generator using GBIP
u will find many appnotes www.anritsu.com

thanks

http://www.odyseus.nildram.co.uk/Sys.../Linearity.pdf

I think IM3 and P1dB can be measured by using SG and SA. They are described linearity of active circuit.