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

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

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

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Example<br />

DISP "CONNECT CAL OUT TO INPUT"<br />

OUTPUT 718;“IP;"<br />

OUTPUT 718;"SNGLS;"<br />

OUTPUT 718;"CF 300MHZ;SP 1MHZ;RB 300KHZ;"<br />

OUTPUT 718;"MXMH TRA;TS;TS;TS;TS;"<br />

OUTPUT 718;"PWRBW TRA, 99.0;"<br />

ENTER 718;P<br />

DISP "THE POWER BANDWIDTH AT 99 PERCENT IS";P/l.OE+3;"kHz"<br />

Description<br />

If trace A is the source, a delta marker is set at the start <strong>and</strong> stop frequencies.<br />

PWRBW Power B<strong>and</strong>width<br />

LXsplays a user prompt.<br />

Initializes spectrum analyzex<br />

Activates single-sweep mode.<br />

Changes centerfrequency,<br />

span, <strong>and</strong> b<strong>and</strong>width.<br />

Activates the maximum<br />

hold of trace A, sweep 4<br />

times.<br />

Returns the 99% power<br />

b<strong>and</strong>width.<br />

Gets the resultf?om the<br />

spectrum analyzer:<br />

Displays the frequency<br />

of the power b<strong>and</strong>width<br />

specQi.ed on the computer<br />

screen.<br />

If 100% is specified, the power b<strong>and</strong>width equals the frequency range of the screen display. If<br />

50% is specified, trace elements are eliminated from either end of the array, until the combined<br />

power of the remaining signal responses equals half of the original power computed. The<br />

frequency span of these remaining trace elements is the power b<strong>and</strong>width returned.<br />

Query Response<br />

Programming Comm<strong>and</strong>s 5-455

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