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Manual - 8500A Series Peak Power Meter - Giga-tronics

Manual - 8500A Series Peak Power Meter - Giga-tronics

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<strong>Series</strong> <strong>8500A</strong> <strong>Peak</strong> <strong>Power</strong> <strong>Meter</strong>s<br />

Command<br />

Argument<br />

MINPsnn.nn<br />

Set <strong>Power</strong> for Underrange Condition / none<br />

(s = polarity; n = power in dBm; -15.00 max -50.00 min)<br />

NOTE: Some of the following marker commands are no longer necessary when<br />

writing code pertaining to markers for the <strong>8500A</strong> instruments. See Section 3.3.7<br />

MKCAn (No Op command with the <strong>8500A</strong>)<br />

Clear Marker Number Selected on Channel A / none<br />

(n = marker number to clear; 1 to 4)<br />

MKCBn (No Op with the <strong>8500A</strong>)<br />

Clear Marker Number Selected on Channel B / none<br />

(n = marker number to clear; 1 to 4)<br />

MKDAn,dddddd.dd<br />

MKDBn,dddddd.dd<br />

MKDFa,b<br />

(No Op with the <strong>8500A</strong>) Select Channel A Marker Delay number n and set the delay<br />

to d / none<br />

(n = marker number to clear; 1 to 4; d = marker delay in microseconds; 200,000<br />

max)<br />

(No Op with the <strong>8500A</strong>) Select Channel B Marker Delay number n and set the delay<br />

to d / none (See MKDA)<br />

Place Markers (a and b) which were previously selected and Output Their Delay<br />

Difference (a - b) Marker differences can also be de-selected - See MKDF-1 / When<br />

the PPM is in channel A it will output:<br />

MDFA,a-b,nn.nnnEsnn<br />

(a = first marker; b = second marker; result will be the marker a delay minus the<br />

marker b delay)<br />

MKDF-1<br />

MKPA<br />

(No Op with the <strong>8500A</strong>) Deselect all Marker Difference Pairs / none<br />

Autoplace All Four Markers as previously selected and Output Their Delays / If the<br />

PPM is in Channel A it will output:<br />

MRKA1,nn.nnnEsnn;2,nn.nnnEsnn;3,nn.nnnEsnn;4,nn.nnnEsnn<br />

If the PPM is in channel B it will output the same as above only with MRKB header.<br />

(1, 2, 3 and 4 = marker numbers; n = delay in seconds; Esnn = exponent)<br />

MKPFa,xx.x<br />

Place Given Marker on Falling Slope of Pulse Profile at the Selected % <strong>Power</strong><br />

Reference and Output Its Delay / When the PPM is in channel A it will output:<br />

MRKAa,nn.nnnEsnn<br />

When the PPM is in channel B it will output:<br />

MRKBa,nn.nnnEsnn<br />

(a = marker number; 1 to 4; x = percent of reference power to place marker; 0.1%<br />

min 99.9% max; n = delay in seconds; Esnn = exponent)<br />

MKPRa,xx.x<br />

Place Given Marker on Rising Slope of Pulse Profile at the Selected % <strong>Power</strong><br />

Reference and Output Its Delay / When in channel A the PPM will output:<br />

MRKAa,nn.nnnEsnn<br />

When in channel B the PPM will output:<br />

MRKBa,nn.nnnEsnn<br />

(See MKPF)<br />

MRKA<br />

MRKB<br />

Select Channel A Marker Sub-Mode / none<br />

Select Channel B Marker Sub-Mode / none<br />

3-46 <strong>Manual</strong> No. 20790, Rev C, November 1998<br />

Superceded by Revision D, March 2009

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