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

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PCTAMR<br />

Percent AM Response<br />

Returns the percent AM measured by the percent AM measurement (PCTAM).<br />

Syntax<br />

PCTAh4R<br />

Related Comm<strong>and</strong>s: MKPX, PCTAM, TH.<br />

Example<br />

OUTPUT 718;"MOV PCTAM,l;"<br />

OUTPUT 718;"PCTAMR?;"<br />

Turn-s on the percent AMmeasurement.<br />

Queries PCTAMR. PCTMR contains the results of the<br />

percent AM?neasurement.<br />

ENTER 718;Percent Stores the value of PCTMR in the vam’able I%rcnt.<br />

PRINT "Percent AM is ",Percent Prints the results.<br />

OUTPUT 718;"MOV PCTAM,O;" Turns ofl the percent AM mmsur~t.<br />

Description<br />

PCTAMR returns a -100 if the PCTAM function has not been turned on, or if the on-screen<br />

signal is not valid or is not present. PCTAM can perform the percent AM measurement only if<br />

there are three on-screen signals that have the characteristics of a carrier <strong>and</strong> two sideb<strong>and</strong>s.<br />

Also, to be considered a signal, the levels of the carrier <strong>and</strong> sideb<strong>and</strong> signals must be greater<br />

than the peak excursion above the threshold.<br />

Query Response<br />

5-418 Programming Comm<strong>and</strong>s<br />

output<br />

termination +

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