84 N9310A User’s Guide
4Key Reference
Opt. F Noise Pressing this softkey allows you to set the phase noise mode:
ResFM Opt. or Normal. Selecting ResFM Opt. improves the
residual FM performance, comparing with Normal mode.
• Default value: Normal
• Key sequence:
> Opt. F Noise
License Key Pressing this softkey when you need to enter a license key
for option identifications. Refer to “Enable an option” on
page 24 for an example of using this function.
• Key sequence:
> License Key
Utility
Utility