Hi John,
Sorry for the delay in response. The SA44B can sweep a larger range than its available RBW. The SA44B can be configured to sweep any range of frequencies within its 1Hz to 4.4GHz range. At a 200MHz span the minimum RBW available will be 6.5kHz.
As for antenna, I’m not familiar with the EMI/EMC antenna market. I would imagine it would depend on what you are attempting to achieve. Are you simply trying to find/characterize interference, an RF probe might be best in this case. If you need to simulate a real EMC test, you will likely need to recreate the test setup as close as possible with a calibrated antenna. I wish I could be more help. Maybe someone else on the board could help you out? You could create a separate topic. I know there have been several users on this board with EMC experience.
Regards,
Andrew
