Anritsu MS2024A/MS2026A User Manual page 139

Chapter 4 — Spectrum Analyzer
Span/RBW
This soft key displays the ratio between the span width and the resolution bandwidth.
The default value is 300, meaning that the span width is approximately 300 times the
resolution bandwidth. The value is approximate because resolution bandwidth filters
come in discrete steps while span width can be set to any value up to the maximum
frequency of the instrument. To change the ratio, select this soft key and use the
keypad, the
Up/Down
MS20xxA VNA Master UG 10580-00166 Rev. C
arrow keys, or the rotary knob to select a new ratio.
4-22 BW (Bandwidth)
4-27