On Sat, Mar 2, 2024 at 04:07 PM, Da Amazin' man G0FTD wrote:
If you accidentally leave it it on then you'd exceed the input spec
Unless you have a specific reason to turn on the LNA, leave it off.? It will reduce the upper limit of the dynamic range of your instrument at the same time that it increases sensitivity.? Always turn it off if you are using external attenuation.? Only use it if your measurement is front-end noise limited.
This is a powerful instrument and as such it requires some thought and understanding to make good measurements with it.??
There is a lot of good information on spectrum analyzer use at Keysight, Rohde & Schwarz, Anritsu and other manufacturers.??
Here are a couple to get started.
73, Don N2VGU
Donald S Brant Jr