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<h4>Power Calibration &nbsp;&nbsp;
<a href="javascript:void(0);" onClick="var e; if (parseInt(navigator.appVersion)>=4){e=event;}  if (parseInt(navigator.appVersion) >=2 && typeof(PopupMenu_Invoke) == 'function') PopupMenu_Invoke(e,'','Automatic Calibration','../../../System_Overview/Calibration/Automatic_Calibration.htm','Calibration (general description)','../../../System_Overview/Calibration/Calibration.htm','Data Flow','../../../System_Overview/Analyzer_Model/Copy_of_Basic_Concepts.htm');return false;" title="Related Topics"><img src="../../../ss_btn_related_topics1.gif" border=0 height=17 width=82 alt="Related Topics"></a>

 </h4>

<p>The <span style="font-style: italic;"><I>Power Calibration</I></span> submenu<span 
 style="font-style: italic;"> <I></I></span>configures and starts a <a href="Power_Calibration.htm#Source_Power_Cal"
	id=A52
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">source</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A52');
//--></script> 
 or <a href="Power_Calibration.htm#Receiver_Power_Cal"
		id=A53
		style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">receiver</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A53');
//--></script> 
 power calibration. </p>

<p class=Figure><img src="Power_cal_menu.gif" width="462px" height="289px" border="0" class="img_whs1"></p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Power_Calibration.htm#Source_Power_Cal"
	id=A1
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Source 
 Power Cal...</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A1');
//--></script></I></span> 
 opens the configuration dialog for a source power calibration. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Power_Calibration.htm#Receiver_Power_Cal"
	id=A3
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Receiver 
 Power Cal...</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A3');
//--></script></I></span> 
 opens the configuration dialog for a receiver power calibration. </p></li>
</ul>

<p class=Note><img src="../../../small_images/tips.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs3"> Power correction data can be stored to a 
 cal group and applied to several channels; see description of the <span 
 style="font-style: italic;"><I><a HREF="Calibration_Manager.htm"
								id=A23
								style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 Manager</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A23');
//--></script>.</I></span><br>
In remote control it is possible to read, modify and reload power calibration 
 data. Refer to the description of the commands <span style="font-family: 'Courier New', monospace;"><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#DATA"
	id=A66
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:DATA</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A66');
//--></script></span> 
 and <span style="font-family: 'Courier New', monospace;"><a HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm#POWer_DATA"
															id=A67
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]</span><span 
 class=dropspot
	style="font-family: 'Courier New', monospace;">CORRection:POWer&lt;port_no&gt;:DATA</span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A67');
//--></script><span 
 class=dropspot>.</span> </p>

<table x-use-null-cells class="whs4">

<tr valign="top" class="whs5">
<td colspan="1" rowspan="1" width="24%" class="whs6">
<p class="whs7">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs8">
<p class="whs9"><span class=dropspot><a 
 href="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm"
	id=a6
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer:CORRection...</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a6');
//--></script></span><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm"
	id=A13
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:POWer...</span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A13');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs10">


<h5><a name=Source_Power_Cal></a>Source Power Cal...</h5>

<p>Opens the configuration dialog for a source power calibration. </p>

<p><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs11"> <a class="dropspot" href="javascript:kadovTextPopup(this)" id="a44" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Purpose 
 of a source power calibration</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a44');
//--></script> 
 </p>

<div class="droptext" id="POPUP166170398" style="display: 'none'; " x-ss-type="dropdown">
 <p>A source power calibration ensures accurate power levels of the generated 
 wave at an arbitrary reference plane in the measurement path. The calibrated 
 reference plane is typically the input of the DUT. </p>
 <p>In a frequency sweep, the power at the reference plane is maintained 
 at a constant <span style="font-style: italic;"><I>Cal Power </I></span>value. 
 The source power calibration eliminates frequency response errors in the 
 signal path between the source and the reference plane. It is possible 
 to introduce an arbitrary attenuation or gain into the signal path so 
 that the <span style="font-style: italic;"><I>Cal Power</I></span> is not restricted 
 to the power range of the source. A typical application for a power calibration 
 in a frequency sweep is the measurement of the gain of an amplifier across 
 a frequency range but at a fixed input power. </p>
 <p>In a power sweep, the power calibration ensures that the power at the 
 reference plane is either constant or a linear function of the stimulus 
 power. A typical application for a power calibration in a power sweep 
 is the measurement of the gain of an amplifier across a power range but 
 at a fixed frequency. &nbsp;&nbsp;</p>
 <p>The correction data acquired in a frequency or power sweep is re-used 
 if a <span style="font-style: italic;"><I>Time </I></span><span>or </span><span 
 style="font-style: italic;"><I>CW Mode </I></span><span>sweep is activated.</span></p>
</div>
<p><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs11"> <a class="dropspot" href="javascript:kadovTextPopup(this)" id="a48" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 procedure</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a48');
//--></script> 
 </p>

<div class="droptext" id="POPUP171745562" style="display: 'none'; " x-ss-type="dropdown">
 <p>The source power calibration requires an external <a href="../../System/System_Menu.htm#External_Power_Meters"
														id=a47
														style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">power 
 meter</a>, 
 to be connected via GPIB bus, USB or LAN interface. The power sensor can 
 be connected directly at the reference plane or to any other point in 
 the test setup where the signal power is known to be proportional to the 
 power at the reference plane. &nbsp;</p>
 <p>The source power calibration involves several steps: </p>
 <ol>
  <li class=kadov-p-CProcedure>
  <p class=Procedure>The analyzer performs 
 a first calibration sweep at the source power that is likely to produce 
 the target power (<span style="font-style: italic;"><I>Cal Power) </I></span><span>at 
 the reference plane. A known attenuation or gain at the source port and 
 in the signal path between the source port and the reference plane is 
 taken into account.</span></p></li>
 </ol>
 <p class=Figure><img src="../Mode/Amplifier.gif" width="433px" height="66px" border="0" class="img_whs12"></p>
 <ol start="2" type="1" class="whs13">
  <li class=kadov-p-CProcedure>
  <p class=Procedure>The power measured 
 at the reference plane is displayed in the calibration sweep diagram and 
 compared to the <span style="font-style: italic;"><I>Cal Power. </I></span>The 
 comparison serves as an input for the correction of the source power. 
 </p></li>
  <li class=kadov-p-CProcedure>
  <p class=Procedure>Steps 1 and 2 are repeated 
 for a specified <span style="font-style: italic;"><I>Number of Readings </I></span>or 
 after the deviation between the measured power at the reference plane 
 and the <span style="font-style: italic;"><I>Cal Power </I></span>is below a 
 specified <span style="font-style: italic;"><I>Tolerance.</I></span></p></li>
  <li class=kadov-p-CProcedure>
  <p class=Procedure>After the last calibration 
 sweep, it is possible to perform an additional <span style="font-style: italic;"><I>Verification 
 Sweep </I></span>in order to check the accuracy. </p></li>
 </ol>
 <p>After a power calibration one can expect the power at the reference 
 plane to be within the range of uncertainty of the power meter. After 
 a change of the sweep points or sweep range, the analyzer i<a href="Power_Calibration.htm#Interpolation_and_Extrapolation"
	id=a34
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">nterpolates 
 or extrapolates</a> 
 the calibration data. </p>
</div>
<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Source_power_Cal_menu.jpg" width="562px" height="425px" border="0" class="img_whs14"></p>

<p>The <span style="font-style: italic;"><I>Source Power Cal </I></span>dialog 
 provides the following control elements:</p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Calibrate 
 &#8211; Source 
 </I></span>contains all analyzer ports or external generators which can be 
 used as a source for the calibrated wave quantity. The list contains all 
 analyzer ports <span style="font-style: italic;"><I>Port 1 </I></span>to <span 
 style="font-style: italic;"><I>Port n</I></span>. Generators <span style="font-style: italic;"><I>(Gen 
 1, Gen 2, ...)</I></span> must be configured explicitly in the <span style="font-style: italic;"><I>System 
 Configuration </I></span>&#8211; 
 <span style="font-style: italic;"><I><a href="../../System/System_Menu.htm#External_Generators"
										id=a4
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">External 
 Generators</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a4');
//--></script></I></span> 
 dialog<span style="font-style: italic;"> <I></I></span>before they appear in 
 the list. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: italic;">Take Cal Sweep 
 <span style="font-style: normal;">initiates a calibration sweep for the 
 selected source. The progress of the sweep is monitored in the <a href="Power_Calibration.htm#Calibration_Sweep_Diagram"
	id=A18
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">calibration 
 sweep diagram</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A18');
//--></script>. 
 After the necessary calibrations have been completed, a <a href="Power_Calibration.htm#Messages_for_Power_Calibration"
															id=a5
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">message</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a5');
//--></script> 
 in the trace list indicates the status of the power calibration. &nbsp;</span></p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: normal;"><span style="font-style: italic;"><I>Abort 
 Sweep </I></span>stops a running sweep. The data acquired in the aborted sweep 
 is discarded. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: normal;">The <span style="font-style: italic;"><I>Settings 
 </I></span>panel displays the essential parameters of the source power calibration, 
 to be defined in the <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Modify_Power_Cal_Settings"
															id=A40
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Modify 
 Source Power Cal Settings</a><script type="text/javascript"
															language=JavaScript1.2><!--
kadovInitEffects('A40');
//--></script></I></span> 
 dialog. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Source 
 Power Correction Off</I></span> can be selected/deselected as soon as power 
 calibration data have been acquired for the selected source. If the box 
 is checked, the calibration data is kept in memory but not applied to 
 the source. The <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Power_Corr_Off"
														id=a2
														style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Power 
 Correction Off</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a2');
//--></script></I></span> 
 softkey disables the power correction for all receivers and sources. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: normal;"><span style="font-style: italic;"><I>Modify 
 Settings... </I></span>opens the <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Modify_Power_Cal_Settings"
	id=a41
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Modify 
 Source Power Cal Settings</a><script type="text/javascript"
															language=JavaScript1.2><!--
kadovInitEffects('a41');
//--></script></I></span> 
 dialog. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: normal;"><span style="font-style: italic;"><I>Power 
 Meter </I></span>selects an external power meter that is used to measure the 
 exact source power at the calibration point. Power meters <span style="font-style: italic;"><I>(Pmtr1, 
 Pmtr2, ...)</I></span> must be configured explicitly in the <span style="font-style: italic;"><I>System 
 Configuration </I></span>&#8211; 
 <span style="font-style: italic;"><I><a href="../../System/System_Menu.htm#External_Power_Meters"
										id=a21
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">External 
 Power Meters</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a21');
//--></script></I></span> 
 dialog<span style="font-style: italic;"> <I></I></span>before they appear in 
 the list. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: normal;"><span style="font-style: italic;"><I>Power 
 Meter Config... </I></span>opens the <span style="font-style: italic;"><I>System 
 Configuration </I></span>&#8211; 
 <span style="font-style: italic;"><I>External Power Meters </I></span>dialog. 
 </p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: normal;"><span style="font-style: italic;"><I>Perform 
 Verification Sweep after Cal </I></span>enables or disables a verification 
 sweep that the analyzer performs after the source power calibration. The 
 sweep is also displayed in the calibration sweep diagram. Its purpose 
 is to test the accuracy of the source power calibration after the final 
 correction data have been acquired. The final power calibration results 
 are applied starting with the first sweep after the verification sweep. 
 &nbsp;</p></li>
</ul>

<table x-use-null-cells class="whs4">

<tr valign="top" class="whs5">
<td colspan="1" rowspan="1" width="24%" class="whs6">
<p class="whs7">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs8">
<p class="whs9"><a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#ACQuire"
													id=A54
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection[:ACQuire]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A54');
//--></script><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#COLLect_ACQuire"
	id=A55
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:COLLect[:ACQuire]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A55');
//--></script><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#STATe"
	id=A61
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection[:STATe]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A61');
//--></script><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#GENerator_STATe"
	id=A62
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:GENerator[:STATe]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A62');
//--></script><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#PMETer_ID"
	id=A63
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:PMETer:ID</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A63');
//--></script> 
 <a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#COLLect_ACQuire_VERification_STATe"
	id=A56
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:COLLect[:ACQuire]:VERification[:STATe]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A56');
//--></script> 
 </td></tr>
</table>


<hr align="center" width="50%" class="whs10">


<h5><a name=Calibration_Sweep_Diagram></a>Calibration Sweep Diagram</h5>

<p>The calibration sweep diagram displays the power measured by the external 
 power meter while a source power calibration is performed. </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List>A trace is displayed for each 
 calibration sweep.</p></li>
	
	<li class=kadov-p-CList><p class=List>If <span style="font-style: italic;"><I>Perform 
 Verification Sweep after Cal</I></span> is enabled in the <span style="font-style: italic;"><I>Source 
 Power Cal</I></span> dialog, an additional trace is displayed after the end 
 of the calibration. </p></li>
</ul>

<p>The diagram is automatically scaled so that the center corresponds to 
 the selected <span style="font-style: italic;"><I>Cal Power. </I></span>For frequency 
 sweeps, a horizontal trace close to the <span style="font-style: italic;"><I>Cal 
 Power </I></span>indicates an accurate power calibration. For power sweeps, 
 the ideal trace is a power ramp. </p>

<p><span>Below the sweep diagram, the status messages </span><span style="font-style: italic;"><I>Calibration 
 in Progress/Finished </I></span><span>and </span><span style="font-style: italic;"><I>Verification 
 in Progress/Finished </I></span><span>show the progress of the calibration 
 procedure.</span> </p>


<hr align="center" width="50%" class="whs10">


<h5><a name=Modify_Power_Cal_Settings></a>Modify Source Power Cal Settings</h5>

<p>The <span style="font-style: italic;"><I>Modify Source Power Cal Settings 
 </I></span>dialog displays the target power for the source power calibration 
 and defines stop criteria. </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Modify_Power_Cal_Settings_menu.jpg" width="327px" height="266px" border="0" class="img_whs15"></p>

<p>The dialog provides the following control elements:</p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Port 
 n Cal Power </I></span>(where n is the calibrated source port selected in 
 the <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Source_Power_Cal"
											id=A45
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Source 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A45');
//--></script></I></span> 
 dialog)<span style="font-style: italic;"> <I></I></span>shows the target power 
 of the calibration <span style="font-style: italic;"><I>(Cal Power) </I></span>and 
 the <span style="font-style: italic;"><I>Cal Power Offset</I></span>. Both parameters 
 can be adjusted in the <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Port_n_Cal_Power"
															id=A46
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Port 
 n Cal Power</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A46');
//--></script></I></span> 
 dialog, to be opened via <span style="font-style: italic;"><I>Modify Cal 
 Power...</I></span> </p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: italic;"><span style="font-style: normal;">The 
 parameters in the </span><span>Power Meter </span>Readings <span style="font-style: normal;">panel 
 provide stop criteria for the calibration procedure: </span>Maximum Number 
 of Readings <span style="font-style: normal;">is a limit for the number 
 of calibration sweeps. </span>Tolerance<span style="font-style: normal;"> 
 denotes the maximum deviation of the measured power from the </span>Cal 
 Power.<span style="font-style: normal;"> The calibration procedure is 
 stopped if the </span>Maximum Number of Readings <span style="font-style: normal;">is 
 reached </span><span style="font-style: normal; font-weight: bold;"><B>or</B></span><span 
 style="font-style: normal;"> if the measured power is within the </span>Tolerance<span 
 style="font-style: normal;">. &nbsp;</span></p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: italic;"><span style="font-style: normal;">If</span> 
 Switch off All Other Sources...<span style="font-style: normal;"> is checked, 
 the power at all sources except the calibrated source is switched off 
 during the calibration. This is advisable especially if the power calibration 
 is intended for intermodulation measurements where different signals are 
 combined. </span></p></li>
</ul>

<table x-use-null-cells class="whs4">

<tr valign="top" class="whs5">
<td colspan="1" rowspan="1" width="24%" class="whs6">
<p class="whs7">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs8">
<p class="whs9"><a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#NREadings"
													id=A64
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:NREadings</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A64');
//--></script> 
 <a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#COLLect_AVERage_COUNt"
	id=A57
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:COLLect:AVERage[:COUNt]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A57');
//--></script> 
 <a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#COLLect_AVERage_NTOLerance"
	id=A58
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:COLLect:AVERage:NTOLerance</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A58');
//--></script> 
 <a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#OSOurces_STATe"
	id=A65
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:OSOurces[:STATe]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A65');
//--></script> 
 </td></tr>
</table>


<hr align="center" width="50%" class="whs10">


<h5><a name=Port_n_Cal_Power></a>Port n Cal Power</h5>

<p>The <span style="font-style: italic;"><I>Port n Cal Power </I></span>dialog 
 defines the target power for the source power calibration. The settings 
 are port-specific. </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="../Mode/Port_n_cal_power.jpg" width="502px" height="242px" border="0" class="img_whs16"></p>

<p>The <span style="font-style: italic;"><I>Port n Cal Power </I></span>settings 
 serve two different purposes: </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Port 
 Power Offset </I></span>defines a port-specific offset to the channel power. 
 The actual output power at the port is equal to the channel power P<span 
 style="vertical-align: Sub;">b</span> <span style="font-style: italic;"><I>(Channel 
 &#8211; Stimulus 
 &#8211; Power) 
 </I></span>plus the <span style="font-style: italic;"><I>Port Power Offset.</I></span> 
 It is equal to the <span style="font-style: italic;"><I>Port Power Offset</I></span> 
 (in dBm) if <span style="font-style: italic;"><I>0 dBm </I></span>is selected 
 instead of <span style="font-style: italic;"><I>P</I></span><span style="font-style: italic; vertical-align: Sub;"><I>b</I></span><span 
 style="font-style: italic;"><I>.</I></span> For power sweep and the selection 
 <span style="font-style: italic;"><I>P</I></span><span style="font-style: italic; vertical-align: Sub;"><I>b</I></span><span 
 style="font-style: italic;"><I>,</I></span> the actual port power varies across 
 the sweep, for other configuration the port power is constant. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Cal 
 Power Offset </I></span>specifies a gain (positive values) or an attenuation 
 (negative values) in the signal path between the source port and the calibrated 
 reference plane. With a <span style="font-style: italic;"><I>Cal Power Offset 
 </I></span>of n dB, the target power at the reference plane is equal to the 
 actual output power at the port plus n dB. The <span style="font-style: italic;"><I>Cal 
 Power Offset </I></span>has no impact on the source power. </p></li>
</ul>

<p><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs11"> <a class="dropspot" href="javascript:kadovTextPopup(this)" id="a19" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Use 
 of an amplifier in the signal path</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a19');
//--></script> 
 </p>

<div class="droptext" id="POPUP169752541" style="display: 'none'; " x-ss-type="dropdown">
 <p>Assume that a DUT requires a constant input power of +35 dBm, and that 
 the measurement path contains an amplifier with a 30 dB gain. </p>
 <p>After a reset of the analyzer the channel power P<span style="vertical-align: Sub;">b</span> 
 is zero dBm. With a <span style="font-style: italic;"><I>Port Power Offset 
 </I></span>of +5 dB at the calibrated source port and a <span style="font-style: italic;"><I>Cal 
 Power Offset </I></span>of +30 dB, the source power calibration ensures that 
 the constant input power of +35 dBm is maintained across the entire sweep 
 range. The actual output power of the analyzer is +5 dBm. </p>
 <p>Note that a power calibration with an appropriate <span style="font-style: italic;"><I>Cal 
 Power Offset </I></span><span>will automatically prevent excess input levels 
 at the DUT.</span></p>
</div><table x-use-null-cells class="whs4">

<tr valign="top" class="whs5">
<td colspan="1" rowspan="1" width="24%" class="whs6">
<p class="whs7">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs8">
<p class="whs9"><span><a href="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer__LEVel_.htm#POWer_OFFSet"
															id=a59
															style="x-condition: ZVA_T; /*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer[:LEVel][:IMMediate]:OFFSet 
 &lt;numeric_value&gt;, ONLY | CPAD</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a59');
//--></script></span><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#LEVel_OFFset"
	id=A60
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:LEVel:OFFSet</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A60');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs10">


<h5><a name=Receiver_Power_Cal></a>Receiver Power Cal...</h5>

<p>Opens the configuration dialog for a receiver power calibration. The 
 receiver power calibration data is acquired in a calibration sweep after 
 appropriate selection of the calibrated wave quantity and the source. 
 </p>

<p><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs11"> <a class="dropspot" href="javascript:kadovTextPopup(this)" id="a32" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Purpose 
 of a receiver power calibration</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a32');
//--></script> 
 </p>

<div class="droptext" id="POPUP168050855" style="display: 'none'; " x-ss-type="dropdown">
 <p>A receiver power calibration ensures that the power readings at a specified 
 input port of the analyzer agree with the source power level calibrated 
 at an arbitrary reference plane. Typically, the reference plane is at 
 the input of the receiver so that the calibration eliminates frequency 
 response errors in the calibrated receiver. </p>
 <p>A receiver power calibration generally improves the accuracy of power 
 (wave quantity) measurements. &nbsp;</p>
 <p>The correction data acquired in a frequency or power sweep is re-used 
 if a <span style="font-style: italic;"><I>Time </I></span>or <span style="font-style: italic;"><I>CW 
 Mode </I></span>sweep is activated. </p>
</div>
<p><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs11"> <a class="dropspot" href="javascript:kadovTextPopup(this)" id="a31" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 procedure and calibration sweep</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a31');
//--></script></p>

<div class="droptext" id="POPUP171772109" style="display: 'none'; " x-ss-type="dropdown">
 <p>The receiver power calibration is based on a wave with known power. 
 </p>
 <ul type="disc" class="whs2">
  <li class=kadov-p-CList>
  <p class=List>No external connection is needed 
 for a receiver power calibration on the reference receiver (wave quantity 
 a<span style="vertical-align: Sub;">n</span> with <span style="font-style: italic;"><I>Port 
 n</I></span> used as a source). Besides, the reference receiver is automatically 
 calibrated together with any source power calibration of an analyzer port. 
 </p></li>
  <li class=kadov-p-CList>
  <p class=List>Calibration of a received wave 
 b<span style="vertical-align: Sub;">n</span> involves an external test 
 setup. The received wave to calibrate can be generated by the analyzer 
 or an <a href="../../System/System_Menu.htm#External_Generators"
			id=a51
			style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">external 
 generator</a>. 
 &nbsp;</p></li>
 </ul>
 <p>The receiver power calibration involves a single calibration sweep. 
 The calibration sweep is performed with current channel settings but with 
 a maximum IF bandwidth of 1 kHz. Smaller IF bandwidths are maintained 
 during the calibration sweep; larger bandwidths are restored after the 
 sweep. </p>
 <p>The analyzer measures the power at each sweep point, compares the result 
 with the nominal power of the source, and compiles a correction table. 
 </p>
 <p>An acoustic signal indicates the end of the calibration sweep. At the 
 same time, a <a href="Power_Calibration.htm#Messages_for_Power_Calibration"
				id=a43
				style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">message</a> 
 next to the calibrated source indicates the status of the receiver power 
 calibration. After a change of the sweep points or sweep range, the analyzer 
 i<a href="Power_Calibration.htm#Interpolation_and_Extrapolation"
	id=a49
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">nterpolates 
 or extrapolates</a> 
 the calibration data. &nbsp;</p>
</div>
<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Receiver_Power_Cal_menu.jpg" width="205px" height="274px" border="0" class="img_whs17"></p>

<p>The <span style="font-style: italic;"><I>Receiver Power Cal </I></span>dialog 
 provides the following control elements:</p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Wave 
 Quantity to Calibrate </I></span>provides two pull-down lists to select one 
 of the transmitted waves a<span style="vertical-align: Sub;">n</span> 
 or one of the received waves b<span style="vertical-align: Sub;">n</span> 
 for the calibration. Each power calibration only applies to the selected 
 wave quantity in the active measurement. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Receiver 
 Power Correction Off</I></span> can be selected/deselected as soon as power 
 calibration data have been acquired for the active wave quantity. If the 
 box is checked, the calibration data is kept in memory but not applied 
 to the wave quantity. The <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Power_Corr_Off"
	id=A29
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Power 
 Correction Off</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A29');
//--></script></I></span> 
 softkey disables the power correction for all receivers and sources. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Used 
 Source </I></span>contains all analyzer ports or external generators which 
 can which can be used as a source for the calibrated wave quantity. The 
 list contains all analyzer ports <span style="font-style: italic;"><I>Port 
 1 </I></span>to <span style="font-style: italic;"><I>Port n</I></span>. Generators 
 <span style="font-style: italic;"><I>(Gen 1, Gen 2, ...)</I></span> must be configured 
 explicitly in the <span style="font-style: italic;"><I>System Configuration 
 </I></span>&#8211; 
 <span style="font-style: italic;"><I><a href="../../System/System_Menu.htm#External_Generators"
										id=a30
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">External 
 Generators</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a30');
//--></script></I></span> 
 dialog<span style="font-style: italic;"> <I></I></span>before they appear in 
 the list. Behind the source, a <a href="Power_Calibration.htm#Messages_for_Power_Calibration"
									id=A33
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">message</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A33');
//--></script> 
 indicates the status of the power calibration. </p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: italic;">Take Cal Sweep 
 <span style="font-style: normal;">initiates a calibration sweep for the 
 selected wave quantity and source. The progress of the sweep is monitored 
 in the </span>Sweep <span style="font-style: normal;">progress bar. &nbsp;&nbsp;</span></p></li>
	
	<li class=kadov-p-CList><p class=List
								style="font-style: italic;">Abort Sweep 
 <span style="font-style: normal;">stops a running sweep. The data acquired 
 in the aborted sweep is discarded.</span> </p></li>
</ul>

<p class=Note><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs3"> The accuracy of the receiver power calibration 
 depends on the accuracy of the source. Depending on the test setup and 
 reference plane, it is recommendable to perform a source power calibration 
 before the receiver power calibration. &nbsp;</p>

<table x-use-null-cells class="whs4">

<tr valign="top" class="whs5">
<td colspan="1" rowspan="1" width="24%" class="whs6">
<p class="whs7">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs8">
<p class="whs18"><a HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm#POWer_ACQuire"
	id=a24
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]CORRection:<span 
 class=dropspot>POWer:ACQuire</a><script type="text/javascript"
															language=JavaScript1.2><!--
kadovInitEffects('a24');
//--></script> 
 </span><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm#POWer_AWAVe_STATe"
			id=a25
			style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]CORRection:<span class=dropspot>POWer:AWAVe[:STATe]</span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a25');
//--></script><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm#POWer_DATA"
	id=A35
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]CORRection:<span class=dropspot>POWer:DATA</span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A35');
//--></script><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm#POWer_STATe"
	id=A36
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]CORRection:<span class=dropspot>POWer[:STATe]</span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A36');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs10">


<h4 class=Dropdownline><a name=Messages_for_Power_Calibration></a>Status 
 Messages for Power Calibration</h4>

<p class="whs19">The status of a power calibration is indicated 
 in the trace list and in the <span style="font-style: italic;"><I>Used Source 
 </I></span><span>panel of the</span> <span style="font-style: italic;"><I><a 
 href="Power_Calibration.htm#Receiver_Power_Cal"
	id=a37
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Receiver 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a37');
//--></script> 
 </I></span>dialog. The following messages can be displayed:</p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>PCal</I></span> 
 denotes an active power calibration with unchanged sweep points (no <a 
 href="Power_Calibration.htm#Interpolation_and_Extrapolation"
	id=A39
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">interpolation 
 or extrapolation</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A39');
//--></script>). 
 </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>PCai 
 </I></span>denotes an active, interpolated power calibration (at least one 
 calibration step is interpolated). </p></li>
	
	<li style="/*begin!kadov{{*/ x-condition: ZVA_only; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVA_only;"><span style="font-style: italic;"><I>PCa? 
 </I></span>denotes an active power calibration with changed step attenuator 
 setting and disabled ALC. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>PCao 
 </I></span>denotes an active power calibration with a changed source power 
 (in at least one calibration step). &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>PCax 
 </I></span>denotes an active, extrapolated power calibration (in at least 
 one calibration step). &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Uncal 
 </I></span>denotes an uncalibrated source (not available for traces). </p></li>
</ul>

<p>The labels appear in the trace list, provided that the measured quantity 
 is an S-Parameter, wave quantity, ratio, or a derived quantity (stability 
 factor, PAE), and that the necessary calibrations have been performed.</p>

<p><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs11"> <a class="dropspot" href="javascript:kadovTextPopup(this)" id="a38" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Necessary 
 Calibrations</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a38');
//--></script></p>


<div class="droptext" id="POPUP172247250" style="display: 'none'; " x-ss-type="dropdown">
 <p>A trace is marked as power calibrated as soon as the analyzer assumes 
 that the effects of an inaccurate source or receiver power have been consistently 
 removed. The conditions for consistency depend on the measured quantity 
 (see also <span style="font-style: italic;"><I><a HREF="../../../System_Overview/Analyzer_Model/Copy_of_Basic_Concepts.htm"
												id=a50
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Data 
 Flow</a>)</I></span>: 
 </p>
 <ul type="disc" class="whs2">
  <li class=kadov-p-CList>
  <p class=List>S-parameters S<span style="vertical-align: Sub;">xy</span> 
 represent the ratio of a received wave b<span style="vertical-align: Sub;">x</span> 
 to a driving wave a<span style="vertical-align: Sub;">y</span>. The system 
 error correction for S-parameters generally includes a receiver power 
 calibration, however, a source power calibration can still improve the 
 accuracy. Therefore S-parameters are assumed to be power calibrated as 
 soon as the driving wave has been power calibrated. The same holds for 
 quantities derived from S-parameters, e.g. stability factors. </p></li>
  <li class=kadov-p-CList>
  <p class=List>For wave quantities, ratios, 
 and derived quantities (e.g. the PAE), the driving waves and all receivers 
 must be power calibrated. </p></li>
 </ul>
</div><hr align="center" width="50%" class="whs10">


<h4 class=Dropdownline><a name=Interpolation_and_Extrapolation></a>Interpolation 
 and Extrapolation</h4>

<p>The analyzer can interpolate and extrapolate power correction data so 
 that a source or receiver power calibration can be reused after a change 
 of the frequency sweep range: &nbsp;</p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List>At new sweep points within the 
 calibrated sweep range, interpolation is applied to calculate the correction data. A label 
 <span style="font-style: italic;"><I>PCai </I></span><span>in the trace list 
 indicates an interpolated power calibration.</span> </p></li>
	
	<li class=kadov-p-CList><p class=List>At new sweep points outside the 
 calibrated sweep range, the correction values are extrapolated: Sweep 
 points below the lowest calibrated frequency are assigned the correction 
 value of the lowest frequency. Sweep points above the highest calibrated 
 frequency are assigned the correction value of the highest frequency. 
 A label <span style="font-style: italic;"><I>PCax </I></span>in the trace list 
 indicates an extrapolated power calibration. &nbsp;</p></li>
</ul>


<hr align="center" width="50%" class="whs10">


<h4 class=Dropdownline><a name=Power_Corr_On></a>Power Correction On</h4>

<p>Applies all available source and/or receiver power calibrations to the 
 active channel. This function is disabled if no power correction data 
 has been acquired for the active channel. &nbsp;</p>

<p><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs3"> Uncheck the ...<span style="font-style: italic;"><I>Power 
 Correction Off</I></span> boxes in the <span style="font-style: italic;"><I><a 
 href="Power_Calibration.htm#Source_Power_Cal"
	id=a26
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Source 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a26');
//--></script></I></span> 
 and <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Receiver_Power_Cal"
											id=a27
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Receiver 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a27');
//--></script></I></span> 
 dialogs to enable an individual source or receiver calibration. Press 
 <span style="font-style: italic;"><I><a href="#Power_Corr_Off"
										id=a9
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Power 
 Correction Off</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a9');
//--></script></I></span> 
 to disable the power calibration of all sources and receivers. </p>

<table x-use-null-cells class="whs4">

<tr valign="top" class="whs5">
<td colspan="1" rowspan="1" width="24%" class="whs6">
<p class="whs7">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs8">
<p class="whs18"><span 
 class=dropspot><font color=black ><a href="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#STATe"
					id=a10
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer:CORRection:STATe 
 ON</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('a10');
//--></script> 
 </font></span><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm"
			id=a11
			style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]CORRection:<span class=dropspot>POWer:STATe ON</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a11');
//--></script> 
 </span></td></tr>
</table>


<hr align="center" width="50%" class="whs10">


<h4 class=Dropdownline><a name=Power_Corr_Off></a>Power Correction Off</h4>

<p>Disables all source and receiver power calibrations of the active channel 
 so that all power correction data is ignored. This function is disabled 
 if no power correction data has been acquired for the active channel. 
 </p>

<p><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs3"> Check the ...<span style="font-style: italic;"><I>Power 
 Correction Off</I></span> boxes in the <span style="font-style: italic;"><I><a 
 href="Power_Calibration.htm#Source_Power_Cal"
	id=a17
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Source 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a17');
//--></script></I></span> 
 and <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Receiver_Power_Cal"
											id=a22
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Receiver 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a22');
//--></script></I></span> 
 dialogs to disable an individual source or receiver calibration. Press 
 <span style="font-style: italic;"><I><a href="Power_Calibration.htm#Power_Corr_On"
										id=A28
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Power 
 Correction On</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A28');
//--></script></I></span> 
 to re-enable the power calibration of all sources and receivers. </p>

<table x-use-null-cells class="whs4">

<tr valign="top" class="whs5">
<td colspan="1" rowspan="1" width="24%" class="whs6">
<p class="whs7">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs8">
<p class="whs18"><span 
 class=dropspot><font color=black ><a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#STATe"
					id=A7
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer:CORRection:STATe 
 OFF</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('A7');
//--></script> 
 </font></span><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm"
			id=a8
			style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]CORRection:<span class=dropspot>POWer:STATe OFF</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a8');
//--></script> 
 </span></td></tr>
</table>


<hr align="center" width="50%" class="whs10">


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	style="color: #ff0000; x-condition: OLH;"><a href="Power_Calibration.htm"
												id=a14
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