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HP 8590 E & L Series Spectrum Analyzers and HP 8591C Cable TV ...

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VB<br />

Video B<strong>and</strong>width<br />

Specifies the video b<strong>and</strong>width, which is a post-detection, low-pass filter.<br />

Syntax<br />

(<br />

VB<br />

1 3-6 ‘. P ;’<br />

. ...__..’<br />

,- frequency-\<br />

‘I<br />

VB Video B<strong>and</strong>width<br />

Item Description/Default Range<br />

Number Any real or integer number. Default unit is Hz. 30 Hz to 3 MHz.<br />

Equivalent Softkey: VID l3W AUTO NAN.<br />

Preset State: 1 MHz.<br />

Step Increment: In a 1, 3, 10 sequence.<br />

Related Comm<strong>and</strong>s: AUTO, RB, SP, ST, VBR.<br />

Example<br />

OUTPUT 718;"VB 10KHZ;" Changes the video b<strong>and</strong>width to 10 kHz.<br />

Description<br />

The resolution b<strong>and</strong>width, video b<strong>and</strong>width, <strong>and</strong> sweep time are normally coupled to the<br />

span. Executing VB uncouples video b<strong>and</strong>width from resolution b<strong>and</strong>width (it does nothing to<br />

the sweep-time, resolution-b<strong>and</strong>width, <strong>and</strong> span coupling). Executing AUTO recouples video<br />

b<strong>and</strong>width to the resolution b<strong>and</strong>width.<br />

Frequency values other than the values in the 1, 3, 10 sequence are rounded to the nearest<br />

permissible value.<br />

Programming Comm<strong>and</strong>s 5.587

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