Anritsu Series MS278XB operation manual Front Panel Menus Menu Archive Bandwidth Menu

Front Panel Menus	Menu Archive
Bandwidth Menu

The Bandwidth menu lets you select between automatic or manual resolution bandwidth and set the resolution and video bandwidths when in the manual mode.

Table 4-7.Bandwidth Menu

RBW: To change the resolution bandwidth when in the manual mode, press in the RBW parameter field and enter a new value using the numeric keys. When a new value is entered, the terminator fly-out will appear with the available units. Press on the desired units to terminate the entry.

Range: 10 Hz to 8 MHz

Resolution: 1,2,3,5 steps (10 Hz, 20 Hz, 30 Hz, 50 Hz, 100 Hz…)

Default: Auto (see Span/RBW)

Terminators: GHz, MHz, kHz, Hz, Cancel

To toggle between resolution bandwidth modes, press the Manual/Auto button.

VBW: To set the video bandwidth when in the manual mode, press in the VBW parameter field and enter a value using the numeric keys. When a new value is entered, the terminator fly-out will appear with the available units. Press on the desired units to terminate the entry.

Range: 1 Hz to 10 MHz

Resolution: 1,2,3,5 steps (10 Hz, 20 Hz, 30 Hz, 50 Hz, 100 Hz, etc.)

Default: Auto (see VBW/RBW)

Terminators: GHz, MHz, kHz, Hz, Cancel

Sweep Time: To set the sweep time when in the manual mode, press in the Sweep Time parameter field and enter a value using the numeric keys. When a new value is entered, the terminator fly-out will appear with the available units. Press on the desired units to terminate the entry.

Range: 5 ms to 10 ks (0.1 ms to 10 ks in zero span)

Resolution: 1 ms or 1% of upper bound of range (100 µs in zero span)

Default: Auto = k * Span / (RBW)2 if VBW is ≥ RBW or Auto = k * Span / (VBW * RBW) if VBW < RBW where:

k(k-factor) = 1.8 for Auto-speed mode k (k-factor) = 5 for Auto-Accy mode Terminators: ks, s, ms, µs, Cancel

To toggle between manual or automatic sweep time modes, press the Manual /Auto button.

MS278XB OM 4-11