3rd order intercept point

[paul51]

Can anyone tell me how to measure the 3rd order intercept point od an amplifier. I has a sig gen and a spectrum analyzer.

thanks

 

[dpc]

This might help get you started. This is geared toward amateur radio receivers and was written by Paul Harden/NA5N.

Hope it helps a little.

http://qrp.lehigh.edu/lists/qrp-l/article/na5n_ip3.html

 

[jbartos]

Suggestion: Visit

http://www.downeastmicrowave.com/PDF/IP3.PDF

http://www.kiwa.com/ar7030meas.html

http://rf.rfglobalnet.com/library/ApplicationNotes/files/1/intercept.htm

http://www.minicircuits.com/appnote/appnote0-39.pdf

for more info