09.12.2012 Views

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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APB<br />

Trace A Plus Trace B<br />

Adds trace A to trace B <strong>and</strong> sends the result to trace A.<br />

Syntax<br />

APB<br />

Related Comm<strong>and</strong>s: CLRW, SNGLS, TS, VIEW.<br />

Example<br />

10 OUTPUT 718;"IP;SNGLS;"<br />

20 OUTPUT 718;"TS;"<br />

30 OUTPUT 718;"VIEW TRA;RL -2ODM;CLRW TRB;"<br />

40 OUTPUT 718;"TS;VIEW TRB;"<br />

50 OUTPUT 718."APB*"<br />

60 OUTPUT 718;"BLAiK TRB;VIEW TRA;"<br />

70 END<br />

Description<br />

Initializes spectrum <strong>and</strong>yzq changes<br />

to single-sweep mode.<br />

Updates the trace.<br />

Changes the refwence level.<br />

llzkes a measurement sweep.<br />

Activates APB comm<strong>and</strong>.<br />

Displays the result of APB<br />

The traces are added as 16-bit integers. Negative numbers are represented in two’s<br />

complement format. The two’s complement representation of a negative number is obtained by<br />

changing the 1s to OS in the binary representation of the number, <strong>and</strong> then binarily adding 1.<br />

5-66 Programming Comm<strong>and</strong>s

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