Should I take into consideration LNA stability factor?

I am using an Avago LNA that according to the datasheet is unconditionally stable.

See link: Ultra Low Noise, High Linearity Active Bias Low Noise Amplifier

I have a test board and populated the components for low NF. If I am only interested in a specific band and the stability factor states that it may be potenctial unstable out of band. Should I be concerned?

Also, should I be concerned if it is unstable out of band as well?

Thank you.

hi
for sure you should take care of loading if your LNA is potentially unstable.
plot stability circles in Gamma S and Gamma L plane and and also situate the termination in those planes.then analyze the stability

---------- Post added at 07:33 ---------- Previous post was at 07:31 ----------

hi
for sure you should take care of loading if your LNA is potentially unstable.
plot stability circles in Gamma S and Gamma L plane and and also situate the termination in those planes.then analyze the stability
see this link too.maybe it can help you:
https://www.edaboard.com/thread214213.html

Or you can use Mu and Mu_prime to analysis the stability factor.

Yes, the LNA should be stable at whole freq band, such as from 10KHz to 26.5GHz.