BIRD SignalHawk SH-36S-RM-ASL, Operation Manual, Page: 56 / 195

PC/Rack Mount SignalHawk with ASL
42
BW & Sweep Menu
Item Name Description
1
Resolution BW
Mode
Auto/Man.
When clicked, toggles Resolution BW Mode between auto and
manual control.
Auto - RBW is set based upon the frequency span. When in Auto
mode, the RBW is set according to the nearest ratio of the
Span/RBW (5) selection. The default ratio is 300. When the
frequency span is reduced, the RBW will also be reduced
accordingly.
Example - When the span is changed to 3600 MHz, the RBW will
automatically be set to 1 MHz. When the span is reduced to 100
MHz, the RBW will automatically reduce to 300 kHz.
Manual
- RBW is controlled by changing the setting in Resolution
BW (2).