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<h4>Guided 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,'','Calibration (general description)','../../../System_Overview/Calibration/Calibration.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 analyzer provides a calibration wizard for each calibration type. 
 The guided calibration consists of the following steps:</p>

<ol>
	
	<li class=kadov-p-CProcedure><p class=Procedure><span style="font-style: italic;"><I><a 
 href="Guided_Calibration.htm#Select_Connectors"
	id=A25
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Select 
 Physical Port Connectors</a><script type="text/javascript"
														language=JavaScript1.2><!--
kadovInitEffects('A25');
//--></script></I></span> 
 and calibration kits at all calibrated ports.</p></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure><span style="font-style: italic;"><I><a 
 href="Guided_Calibration.htm#Compile_Calibrations"
	id=A26
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Compile 
 Calibrations:</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A26');
//--></script></I></span> 
 Select a calibration type and the physical ports to be calibrated (skipped 
 for predefined calibrations). </p></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure><span style="font-style: italic;"><I><a 
 href="Guided_Calibration.htm#Measure_Standards"
	id=A27
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Measure 
 Standards:</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A27');
//--></script></I></span> 
 Acquire measurement data for all standards required for the selected calibration 
 type.</p></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure>Calculate the system 
 error correction data (error terms) from the measurement data of the standards 
 and apply the result to the active channel. </p></li>
</ol>

<p><img src="../../../small_images/tips.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1">A successful calibration will supersede the previous calibration, 
 discarding all previous system error correction data. To keep older correction 
 data you can transfer them into a <span style="font-style: italic;"><I>Cal 
 Pool</I></span> using the <span style="font-style: italic;"><I><a href="Calibration_Manager.htm"
															id=a3
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 Manager</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a3');
//--></script>.</I></span> 
 </p>

<p>The system error correction data determined in a calibration procedure 
 are stored on the analyzer. You can read these correction data using the 
 remote control command <span style="font-family: 'Courier New', monospace;"><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection.htm#CDATa"
	id=A51
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]</span><span 
 class=dropspot
	style="font-family: 'Courier New', monospace;">CORRection:CDATa</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A51');
//--></script>.</span> 
 You can also replace the correction data of the analyzer by your own correction 
 data sets. </p>

<p class=Linkline
	style="x-condition: OLH;"><span style="x-condition: OLH;"><img src="../../../small_images/helpwoval3.gif" x-maintain-ratio="TRUE" width="42px" height="18px" border="0" class="img_whs2"> <a href="../../../Measurement_Examples/Optimization/Calibration.htm#Manual_calibration"
				id=a1
				style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Performing 
 a manual calibration</a><script type="text/javascript"
													language=JavaScript1.2><!--
kadovInitEffects('a1');
//--></script></span></p>

<p class=Linkline
	style="x-condition: OLH;"><img src="../../../small_images/helpwoval3.gif" x-maintain-ratio="TRUE" width="42px" height="18px" border="0" class="img_whs2"> <span style="position: relative; x-condition: OLH;"><a 
 href="../../../Measurement_Examples/Optimization/Calibration.htm#Automatic_calibration"
	id=a4
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Performing 
 an automatic calibration</a><script type="text/javascript"
														language=JavaScript1.2><!--
kadovInitEffects('a4');
//--></script></span></p>


<hr align="center" width="50%" class="whs3">


<h5><a name=Select_Connectors></a>Select Connectors</h5>

<p>The first dialog of the calibration wizard displays a table to select 
 the connectors and calibration kits for all calibrated physical ports. 
 </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Select_Connectors_dialog.gif" width="520px" height="481px" border="0" class="img_whs4"></p>

<p>The table contains the following rows:<span style="font-style: italic;"> 
 <I></I></span>&nbsp;</p>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a9" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Physical 
 Port Number #</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a9');
//--></script></I></span></p>
<div class="droptext" id="POPUP249022825" style="display: 'none'; " x-ss-type="dropdown">
 <p>The ports (and therefore the number of table rows) are determined by 
 the active calibration type selected in the <span style="font-style: italic;"><I><a 
 href="Start_Cal.htm"
	id=a30
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Start 
 Cal</a></I></span>submenu. For a user-defined calibration <span style="font-style: italic;"><I>(Start 
 Cal </I></span>&#8211;<span 
 style="font-style: italic;"><I> Other...) </I></span>all measurement ports of 
 the analyzer are displayed regardless of their port configuration. </p>
 <p><span style="font-style: italic;"><I><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs6"></I></span><span class=dropspot>To 
 perform a system error correction, the physical port must be available 
 as a source and receive port. This condition is met if it is selected 
 as a measured port in the </span><span style="font-style: italic;"><I><a 
 href="../Mode/Balanced_Ports.htm"
	id=a32
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Balanced 
 and Measured Ports</a></I></span><span class=dropspot>dialog </span><span class=dropspot
												style="font-style: italic;"><I>(Meas</I></span><span 
 class=dropspot> is on).</span><span style="x-condition: ZVA_only;"></span></p>
</div></li>
</ul>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a10" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Connector</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a10');
//--></script></I></span> 
 </p>
<div class="droptext" id="POPUP294627559" style="display: 'none'; " x-ss-type="dropdown">
 <p>provides a drop-down list to select the <a class="expandspot" href="javascript:kadovTextPopup(this)" id="a28" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">connector 
 type</a><span class=expandtext style="display: 'none';" id=POPUP259127242 >   An (f) behind the connector type denotes female connectors, an (m) denotes 
 male connectors. Symmetric (sexless) connectors (e.g. PC7) are not labeled. 
 User-defined connectors can be added or removed in the <span style="font-style: italic;"><I><a 
 HREF="Calibration_Kits.htm#Connector_Types"
	id=a41
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Available 
 Connector Types</a></I></span> 
 dialog, which is opened from the <span style="font-style: italic;"><I>Channel 
 </I></span>&#8211;<span style="font-style: italic;"><I>Calibration </I></span>&#8211;<span style="font-style: italic;"><I>Calibration Kits</I></span> dialog. </span>&nbsp;at the 
 port and its gender. If <span style="font-style: italic;"><I>Same Connector 
 at All Ports in Table </I></span>is active, the connector types at all ports 
 (but not their gender) are always adjusted to the current selection. </p>
</div></li>
</ul>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a class="expandspot" href="javascript:kadovTextPopup(this)" id="a11" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Ref. 
 Imp.</a><span class=expandtext style="display: 'none';" id=POPUP249225360 >   shows the reference impedance for the selected connector. </span><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('a11');
//--></script></I></span> 
 </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a12" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 Kits</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('a12');
//--></script></I></span> 
 </p>
<div class="droptext" id="POPUP249222309" style="display: 'none'; " x-ss-type="dropdown">
 <p>provides a drop-down list to select a calibration kit. The list contains 
 all calibration kits available for the selected connector type. The assignment 
 of a calibration kit to a connector type must be the same for all physical 
 ports: If a calibration kit is changed, the analyzer automatically assigns 
 the new kit to all ports with the same connector type. &nbsp;&nbsp;</p>
 <p class=Dropdownline><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs6"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a8" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Support 
 of calibration types</a></p>
 <div class="droptext" id="POPUP259137726" style="display: 'none'; " x-ss-type="dropdown">
  <p>The selected calibration kit must contain all standards needed for the 
 active calibration type. If it doesn't the analyzer displays an error 
 message. </p>
 </div>
 <p class=Dropdownline><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs6"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a56" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><span 
 class=dropspot>Waveguide cutoff</span></a></p>
 <div class="droptext" id="POPUP259425663" style="display: 'none'; " x-ss-type="dropdown">
  <p>If a user-defined waveguide connector is assigned to one of the calibrated 
 ports, then the start frequency of the active channel must be above the 
 waveguide cutoff. Otherwise the analyzer displays an error message. </p>
 </div>
</div></li>
</ul>

<p><span style="font-style: italic;"><I>Import Kit </I></span>opens the <span 
 style="font-style: italic;"><I>Import Calibration Kit </I></span>dialog to load 
 and (if desired) activate a <a HREF="Calibration_Kits.htm#Cal_Kit_Files"
								id=A52
								style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">cal 
 kit file</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A52');
//--></script>. 
 <span style="font-style: italic;"><I>Next &gt; </I></span>opens the second dialog 
 of the wizard to continue the calibration procedure:</p>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List>In a user-defined <span style="font-style: italic;"><I>(Other...)</I></span> 
 calibration, the <span style="font-style: italic;"><I><a href="Guided_Calibration.htm#Compile_Calibrations"
														id=A29
														style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Compile 
 Calibrations</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A29');
//--></script></I></span> 
 dialog is called up. </p></li>
	
	<li class=kadov-p-CList><p class=List>In a predefined calibration, 
 <span style="font-style: italic;"><I>Compile Calibrations </I></span>is skipped 
 and the <span style="font-style: italic;"><I><a href="Guided_Calibration.htm#Measure_Standards"
												id=A31
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Measure 
 Standards</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A31');
//--></script></I></span> 
 dialog is called up. </p></li>
</ul>

<p class=Note><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1">If the calibrated channel has already been 
 assigned to a <a HREF="Calibration_Manager.htm"
					id=A59
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">cal 
 group</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A59');
//--></script>, 
 the correction data overwrites the cal group data, so the new calibration 
 will affect all channels assigned to the cal group. The network analyzer 
 generates a notice message <span style="font-style: italic;"><I>&quot;New 
 calibration will overwrite cal pool!&quot; </I></span>when opening the <span 
 style="font-style: italic;"><I>Select Physical Port Connectors </I></span>dialog. 
 </p>

<p class=Dropdownline><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a43" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Checks 
 on switching to the next dialog</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a43');
//--></script></p>

<div class="droptext" id="POPUP295526767" style="display: 'none'; " x-ss-type="dropdown">
 <p>When the <span style="font-style: italic;"><I>Next&gt;</I></span> button<span 
 style="font-style: italic;"><I></I></span>is pressed the analyzer checks the 
 calibration kits and the matching of the calibration standards and possibly 
 displays a notice box (confirm with <span style="font-style: italic;"><I>OK). 
 </I></span>This happens:</p>
 <ul type="disc" class="whs5">
  <li class=kadov-p-CList>
  <p class=List>If one of the calibration kits 
 is described by <a HREF="Calibration_Kits.htm#Cal_Kit_Data_Types"
					id=a34
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">dummy 
 kit parameters</a> 
 or <a HREF="Calibration_Kits.htm#Cal_Kit_Data_Types"
		id=a35
		style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">typical 
 values</a>. 
 </p></li>
  <li class=kadov-p-CList>
  <p class=List>If a predefined 7-term calibration 
 method TXX <span style="font-style: italic;"><I>(TOM, TRL, TNA, TRM)</I></span> 
 is selected but one of the calibration standards is mismatched. A standard 
 is assumed to be mismatched if it is described by <a HREF="Add_Modify_Standard.htm"
														id=a42
														style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">S-parameter 
 data</a> 
 (*.snp file) with a reflection factor &gt; &#8211;30 
 dB.</p></li>
 </ul>
</div><table x-use-null-cells class="whs7">

<tr valign="top" class="whs8">
<td colspan="1" rowspan="1" width="24%" class="whs9">
<p class="whs10">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs11">
<p class="whs12"><a HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#CONNection"
													id=A45
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect:CONNection&lt;port_no&gt;</span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A45');
//--></script> 
 <a HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#SCONnection"
	id=A62
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:COLLect:SCONnection&lt;port_no&gt;</span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A62');
//--></script><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_CKIT.htm#SELect"
	id=A48
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:CKIT:&lt;conn_type&gt;:SELect 
 &quot;&lt;Ckit_Name&gt;&quot;</span></a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A48');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs3">


<h5><a name=Compile_Calibrations></a>Compile Calibrations</h5>

<p>The second dialog of the calibration wizard appears for user-defined 
 <span style="font-style: italic;"><I>(Other...)</I></span> calibrations only. 
 It is used to compile a list of calibration types and physical ports in 
 order to perform all calibrations in a single measurement sequence. A 
 measurement of a particular standard that is required for different calibration 
 types can be reused. </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Compile_Calibrations_dialog.jpg" width="509px" height="466px" border="0" class="img_whs13"></p>

<p>The selected calibrations and ports appear in the <span style="font-style: italic;"><I>List 
 of Calibrations.</I></span> A (N) behind the ports number denotes a node port 
 (see <span style="font-style: italic;"><I><a href="Guided_Calibration.htm#Add_Calibration"
											id=a16
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Add 
 Calibration</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a16');
//--></script></I></span> 
 dialog).<span style="font-style: italic;"> <I></I></span>The list of <span style="font-style: italic;"><I><a 
 href="#Measured_Standards_List"
	id=a13
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Standards 
 to be Measured</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a13');
//--></script></I></span> 
 is automatically generated according to the <span style="font-style: italic;"><I>List 
 of Calibrations. &nbsp;</I></span></p>

<p>The dialog provides three buttons to extend or modify the <span style="font-style: italic;"><I>List 
 of Calibrations:</I></span> </p>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Add 
 Calibration... </I></span>opens the <span style="font-style: italic;"><I>Add 
 Calibration </I></span>dialog to add a new calibration to the list.</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Modify 
 Calibration</I></span>... opens the <span style="font-style: italic;"><I>Add 
 Calibration </I></span>dialog to modify the selected calibration.<span style="font-style: italic;"> 
 <I></I></span></p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Delete 
 Calibration</I></span> removes the selected calibration from the list. </p></li>
</ul>

<p><span>Two buttons at the bottom of the dialog move back and forward 
 in the calibration wizard: </span></p>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>&lt; 
 Back </I></span>opens<span style="font-style: italic;"> <I></I></span>the <span style="font-style: italic;"><I><a 
 href="Guided_Calibration.htm#Select_Connectors"
	id=A17
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Select 
 Physical Port Connectors</a><script type="text/javascript"
														language=JavaScript1.2><!--
kadovInitEffects('A17');
//--></script></I></span> 
 dialog<span style="font-style: italic;"><I>.</I></span> </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>&gt; 
 Next </I></span>opens the <span style="font-style: italic;"><I><a href="Guided_Calibration.htm#Measure_Standards"
															id=a2
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Measure 
 Standards</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a2');
//--></script></I></span> 
 dialog. </p></li>
</ul>

<p>If one of the calibration kits is described by <a href="Calibration_Kits.htm#Cal_Kit_Data_Types"
													id=a38
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">dummy 
 kit parameters</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a38');
//--></script> 
 or <a href="Calibration_Kits.htm#Cal_Kit_Data_Types"
		id=a39
		style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">typical 
 values</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a39');
//--></script>, 
 the analyzer displays a notice box. </p>

<table x-use-null-cells class="whs7">

<tr valign="top" class="whs8">
<td colspan="1" rowspan="1" width="24%" class="whs9">
<p class="whs10">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs11">
<p class="whs12"><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
													id=a49
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect:METHod:DEFine<br>
&quot;</span>&lt;cal_name&gt;&quot;, REFLshort | FOPort | FRTRans | OPTPort 
 | TOSM | TOM | TRM | TRL | TNA<a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
									id=a61
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "> 
 | ETOM | ETSM, &lt;port_no&gt;[,&lt;port_no&gt;][,&lt;port_no&gt;][,&lt;port_no&gt;]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a61');
//--></script></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a49');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs3">


<h5><a name=Add_Calibration></a>Add Calibration</h5>

<p>The <span style="font-style: italic;"><I>Add Calibration </I></span>dialog 
 adds a new calibration to the list in the <span style="font-style: italic;"><I><a 
 href="Guided_Calibration.htm#Compile_Calibrations"
	id=A14
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Compile 
 Calibrations</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A14');
//--></script></I></span> 
 dialog or modifies an existing calibration. &nbsp;</p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Add_Calibration.jpg" width="290px" height="190px" border="0" class="img_whs14"></p>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Type</I></span> 
 contains a drop-down list to select a <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm" id="A15" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">calibration 
 type</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('A15');
//--></script>. 
 </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Calibrate 
 Ports</I></span> provides a list of all test ports of the analyzer (no external 
 device ports). Ports with unsuitable port configuration (see <span style="font-style: italic;"><I><a 
 href="Guided_Calibration.htm#Select_Connectors"
	id=A18
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Select 
 Connector</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A18');
//--></script></I></span> 
 &#8211; <span 
 style="font-style: italic;"><I>Physical Port Number #)</I></span> are grayed. 
 </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Node 
 Port</I></span> is available for <span style="font-style: italic;"><I><a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#One_Path_Two_Port" id="A19" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">One 
 Path Two Port</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A19');
//--></script></I></span> 
 calibrations where it selects the fully calibrated port. All ports selected 
 in the <span style="font-style: italic;"><I>Calibrate Ports </I></span>table 
 can be used as node ports. </p></li>
</ul>

<p class=Dropdownline><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a20" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Checks 
 on closing the dialog</a><script type="text/javascript"
														language=JavaScript1.2><!--
kadovInitEffects('a20');
//--></script></p>

<div class="droptext" id="POPUP259407881" style="display: 'none'; " x-ss-type="dropdown">
 <p>When the <span style="font-style: italic;"><I>OK</I></span> button<span style="font-style: italic;"><I></I></span>is pressed the analyzer checks the calibration kits and the selected 
 calibration (s) and possibly displays a notice box (confirm with <span 
 style="font-style: italic;"><I>OK)</I></span> or a<span style="font-style: italic;"><I></I></span><span>status message</span><span style="font-style: italic;"><I>. 
 </I></span>This happens:</p>
 <ul type="disc" class="whs5">
  <li class=kadov-p-CList>
  <p class=List>If one of the calibration kits 
 is described by <a href="Calibration_Kits.htm#Cal_Kit_Data_Types"
					id=a36
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">dummy 
 kit parameters</a> 
 or <a href="Calibration_Kits.htm#Cal_Kit_Data_Types"
		id=a37
		style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">typical 
 values</a>. 
 </p></li>
  <li class=kadov-p-CList>
  <p class=List>If one of the selected calibration 
 types is redundant. A calibration is redundant if another selected calibration 
 provides more complete correction data. Redundant calibrations are deleted 
 from the list of calibrations.</p></li>
 </ul>
</div><table x-use-null-cells class="whs7">

<tr valign="top" class="whs8">
<td colspan="1" rowspan="1" width="24%" class="whs9">
<p class="whs10">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs11">
<p class="whs12"><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
													id=a50
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect:METHod:DEFine<br>
&quot;</span>&lt;cal_name&gt;&quot;, REFLshort | FOPort | FRTRans | OPTPort 
 | TOSM | TOM | TRM | TRL | TNA | ETOM | ETSM, &lt;port_no&gt;[,&lt;port_no&gt;][,&lt;port_no&gt;][,&lt;port_no&gt;]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a50');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs3">


<h5><a name=Measure_Standards></a>Measure Standards</h5>

<p>The last dialog of the calibration wizard is used to perform the necessary 
 measurements of standards and to calculate the correction data. </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Measure_Standards_dialog.jpg" width="520px" height="480px" border="0" class="img_whs15"></p>

<p><span style="font-style: italic;"><I>Measured Standards </I></span>displays 
 the list of measured standards compiled in the previous dialogs. The list 
 is complete: All standards must be measured to perform the selected calibrations. 
 </p>

<p class=Dropdownline><a name=Measured_Standards_List></a><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs16"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a21" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Structure 
 of the <span style="font-style: italic;"><I>Measured Standards </I></span>list</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a21');
//--></script></p>

<div class="droptext" id="POPUP257936362" style="display: 'none'; " x-ss-type="dropdown">
 <p>The list of measured standards has a tree structure.</p>
 <ul type="disc" class="whs5">
  <li class=kadov-p-CList>
  <p class=List>The first level contains all 
 physical ports where one-port <img src="Port_reflect.gif" width="30px" height="13px" border="0" class="img_whs17"> (reflection) measurements 
 are required and all physical port combinations where two-port <img src="Port_through.gif" width="34px" height="14px" border="0" class="img_whs18"> (transmission) measurements must be performed. </p></li>
  <li class=kadov-p-CList>
  <p class=List>The second level contains check 
 boxes for the standards to be measured at each port or port combination. 
 </p></li>
  <li class=kadov-p-CList>
  <p class=List>For a sliding match, a third 
 level contains check boxes for the different positions of the sliding 
 element. &nbsp;</p></li>
 </ul>
 <p><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs6">Double-click a physical port symbol to expand or collapse 
 the list. &nbsp;</p>
</div>
<p><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs16"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a65" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibrations 
 using a match or sliding match</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a65');
//--></script></p>

<div class="droptext" id="POPUP295741435" style="display: 'none'; " x-ss-type="dropdown">
 <p>If the calibration kit contains a sliding match standard, the <span 
 style="font-style: italic;"><I>Sliding Match</I></span> appears in the <span 
 style="font-style: italic;"><I>Measured Standards </I></span>list whenever the 
 selected calibration type requires a <span style="font-style: italic;"><I>Match. 
 </I></span>A click on the node expands the check boxes for the different positions 
 of the load element. The number of different positions is defined in the 
 <span style="font-style: italic;"><I>User Interface </I></span>tab of the <span 
 style="font-style: italic;"><I><a href="../../System/System_Menu.htm#System_Configuration"
								id=a64
								style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">System 
 Configuration</a></I></span>dialog. </p>
 <p class=Figure><img src="Sliding_Match_positions.gif" width="485px" height="246px" border="0" class="img_whs19"></p>
 <p>The sliding match is a one-port standard consisting of an air line with 
 a movable, low-reflection load element (sliding load). This standard is 
 used because a no perfect match is available over a wide frequency range. 
 However, a series of measurements at a given frequency with equal mismatch 
 and varying phase yields reflection factors that are located on a circle 
 in the Smith chart. The center of this circle corresponds to perfect match. 
 The network analyzer determines and further corrects this match point 
 following I. Kása's circle-fitting algorithm. </p>
 <p>To obtain the reflection coefficient for a perfectly matched calibration 
 standard, the sliding load must be measured at least at 3 positions which 
 should be unequally spaced to avoid overlapping data points. Increasing 
 the number of positions to 4 &#8211; 
 6 can improve the accuracy. Moreover it is recommended to use the predefined 
 load positions of the standard. </p>
 <p>The calibration is valid <span style="font-style: italic;"><I>(Apply </I></span>is 
 available) if either the match or three positions of the sliding match 
 have been measured. However, it is often desirable to acquire calibration 
 data from both standards. The analyzer combines the data in an appropriate 
 manner: </p>
 <ul type="disc" class="whs5">
  <li class=kadov-p-CList>
  <p class=List>The match results are used up 
 to the lower edge of the specified frequency range of the sliding match 
 (Min Freq). </p></li>
  <li class=kadov-p-CList>
  <p class=List>The sliding match results are 
 used for frequencies above the Min Freq. In general, the sliding match 
 will provide better results than the match within its specified frequency 
 range. &nbsp;</p></li>
 </ul>
</div>
<p>Checking one of the boxes in the list<span style="font-style: italic;"> 
 <I></I></span>causes the analyzer to stop the measurement in all channels except 
 the active one and measure the standard according to the active channel 
 settings. The progress of the calibration sweep and the result can be 
 monitored in the diagram. In case of an error (e.g. if the measurement 
 result shows that the calibration standard was not connected properly), 
 <span style="font-style: italic;"><I>Abort Sweep </I></span>immediately terminates 
 the sweep. </p>

<p>After completing the sweep the analyzer generates a short sound and 
 a green checkmark appears in the checkbox. Measurements can be repeated 
 as often as desired. Newer results overwrite older measurement data.<span 
 style="color: #ff0000;"> <font color=red ></font></span></p>

<p class=Note><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1"> Most channel settings including the <a HREF="../Sweep/Trigger.htm"
	id=A60
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">trigger 
 settings</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A60');
//--></script> 
 remain valid for calibration sweeps and power calibration sweeps. To start 
 the calibration sweeps without delay select <span style="font-style: italic;"><I>Free 
 Run </I></span>trigger mode. &nbsp;</p>

<p class=Note><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a22" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Checks 
 for the calibration sweep</a><script type="text/javascript"
															language=JavaScript1.2><!--
kadovInitEffects('a22');
//--></script></p>

<div class="droptext" id="POPUP257402426" style="display: 'none'; " x-ss-type="dropdown">
 <p>If the sweep range of the active channel exceeds the validity range 
 of the standard model (defined by <span style="font-style: italic;"><I>Min. 
 Freq.</I></span> and <span style="font-style: italic;"><I>Max. Freq.</I></span> in 
 the <span style="font-style: italic;"><I><a HREF="Add_Modify_Standard.htm"
											id=a40
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Add/Modify 
 Standard</a></I></span>dialog) the analyzer displays a notice box (confirm with <span 
 style="font-style: italic;"><I>OK). </I></span></p>
</div>
<p>The <span style="font-style: italic;"><I>Measure Standards </I></span>dialog 
 provides further controls:</p>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List
								style="x-on-hover: none;"><span style="font-style: italic;"><I><a class="expandspot" href="javascript:kadovTextPopup(this)" id="a63" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Show 
 Measurement Diagram</a><span class=expandtext style="display: 'none';" id=POPUP179063633 >   displays or hides the diagram to the right of the list of <span style="font-style: italic;"><I>Measured 
 Standards</I></span>. Hiding the diagram leaves more space for displaying 
 the characteristics of the measured standards. </span><script type="text/javascript"
													language=JavaScript1.2><!--
kadovInitEffects('a63');
//--></script></I></span> 
 </p></li>
	
	<li class=kadov-p-CList><p class=List
								style="x-on-hover: none;"><span style="font-style: italic;"><I><a class="expandspot" href="javascript:kadovTextPopup(this)" id="a53" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Keep 
 Measurement Data for &gt;Repeat Previous Cal&lt;</a><span class=expandtext style="display: 'none';" id=POPUP249924145 >   causes the raw measurement data of the standards to be stored after 
 the calibration is completed. This enables the <span style="font-style: italic;"><I><a 
 href="Repeat_Previous_Cal.htm"
	id=A23
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Repeat 
 Previous Cal..</a>. 
 </I></span>command, which can be used to optimize a previous calibration without 
 repeating the measurement of all standards. If <span style="font-style: italic;"><I>Keep 
 Measurement Data... </I></span>is not active, then the raw measurement data 
 of the standards is deleted and the analyzer only stores the system error 
 correction data. Deleting the raw data saves disk space. </span><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a53');
//--></script></I></span> 
 </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a class="expandspot" href="javascript:kadovTextPopup(this)" id="a54" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Apply</a><span class=expandtext style="display: 'none';" id=POPUP178729843 >   is enabled as soon as data have been acquired for all standards. The 
 button starts the calculation of the system error correction data and 
 closes the calibration wizard. The current instrument settings are stored 
 with the correction data. To avoid incompatibilities, older system error 
 correction data is deleted unless it has been transferred into a <span 
 style="font-style: italic;"><I>Cal Pool</I></span> using the <span style="font-style: italic;"><I><a 
 href="Calibration_Manager.htm"
	id=A24
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 Manager</a>.</I></span><br>If an unknown through standard is measured, <span style="font-style: italic;"><I>Apply 
 </I></span>opens an additional dialog to check the calculated length offset 
 parameters; see <span style="font-style: italic;"><I><a href="Guided_Calibration.htm#Unknow_Through"
														id=a7
														style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Unknown 
 Through Standard</a></I></span>. 
 </span><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a54');
//--></script></I></span> 
 </p></li>
</ul>

<p><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1">The <span style="font-style: italic;"><I>Keep Measurement 
 Data for &gt;Repeat Previous Cal&lt; </I></span>setting is valid for the current 
 calibration only. To activate this function in general, use the parameter 
 in the <span style="font-style: italic;"><I>User Interface </I></span>tab of 
 the <span style="font-style: italic;"><I>Sytem Config. </I></span>dialog (menu 
 <span style="font-style: italic;"><I>System &#8211; 
 <a HREF="../../System/System_Menu.htm#System_Configuration"
	id=A58
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">System 
 Config</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A58');
//--></script></I></span>).<span 
 style="font-style: italic;"> <I></I></span></p>

<p class=Dropdownline><span><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1"></span><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a33" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Checks 
 during the calculation of correction data</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a33');
//--></script></p>

<div class="droptext" id="POPUP257668682" style="display: 'none'; " x-ss-type="dropdown">
 <p><span>Incompatibilities between the selected calibration type, the standards 
 and the channel settings may cause the calibration to be inaccurate</span><span 
 style="font-style: italic;"><I>. </I></span><span>The analyzer auto-detects potential 
 sources of errors and displays appropriate, self-explanatory notice boxes. 
 </span><span style="font-style: italic;"><I>&nbsp;</I></span></p>
</div><table x-use-null-cells class="whs7">

<tr valign="top" class="whs8">
<td colspan="1" rowspan="1" width="24%" class="whs9">
<p class="whs10">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs11">
<p class="whs12"><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#AQUire_SAVE_DEFault"
													id=a57
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect[:ACQuire]:RSAVe</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a57');
//--></script>&nbsp;</span><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#AQUire_SELected"
	id=A44
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:COLLect[:ACQUire]:SELected</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A44');
//--></script><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#SAVE"
	id=A46
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]CORRection:COLLect:SAVE</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A46');
//--></script><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#DELete"
	id=A47
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]CORRection:COLLect:DELete [&quot;&lt;cal_name&gt;&quot;]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A47');
//--></script></span></td></tr>
</table>


<hr align="center" width="50%" class="whs3">


<h5><a name=Unknow_Through></a>Unknown Through Standard</h5>

<p>If an unknown through standard is measured, the <span style="font-style: italic;"><I>Apply 
 </I></span>button in the <span style="font-style: italic;"><I>Measure Standards 
 </I></span>dialog opens an additional dialog. &nbsp;</p>

<p class=Figure><img src="Unknown_Through_Characteristics.jpg" width="511px" height="418px" border="0" class="img_whs20"></p>

<p>The <span style="font-style: italic;"><I>Unknown Through Characteristics 
 </I></span>dialog shows the delay time or transmission phase<span style="font-style: italic;"> 
 <I></I></span>that the analyzer determined during the calibration sweep. </p>

<ul type="disc" class="whs5">
	
	<li class=kadov-p-CList><p class=List>For a non-dispersive standard 
 <span style="font-style: italic;"><I>(Dispersive </I></span>check box cleared), 
 the <span style="font-style: italic;"><I>Delay Time</I></span> can be determined 
 unambiguously, provided that the transmission phase difference between 
 two consecutive sweep points is below 90 deg (make sure that the spacing 
 between the sweep points is small enough). In this case it is sufficient 
 to press <span style="font-style: italic;"><I>Apply </I></span>in order to calculate 
 the system error correction data and close the calibration wizard. &nbsp;&nbsp;</p></li>
	
	<li class=kadov-p><p>For a dispersive standard <span style="font-style: italic;"><I>(Dispersive 
 </I></span>check box selected), the delay time is frequency-dependent, however, 
 the analyzer can determine two solutions for the transmission phase at 
 the start frequency of the calibration sweep. The two solutions differ 
 by 180 deg; the right solution must be selected from a drop-down list. 
 &nbsp;&nbsp;</p></li>
</ul>

<p class=Figure><img src="Dispersive_Through.jpg" width="469px" height="41px" border="0" class="img_whs21"></p>

<p><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1"> If you are not sure which one of the two phases for a 
 dispersive standard is correct, select one, press <span style="font-style: italic;"><I>Apply 
 </I></span>and check the measured result. If the transmission phase looks 
 incorrect, use <span style="font-style: italic;"><I>Channel </I></span>&#8211; <span style="font-style: italic;"><I>Calibration 
 &#8211; Repeat 
 Previous Cal...</I></span> to select the alternative solution. </p>

<p class=Note><img src="../../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs1"><span class=dropspot> The delay time or phase 
 determined by the analyzer can be corrected manually e.g. by entering 
 a value derived from the mechanical length of the standard. Doubtful delay 
 times or phases are displayed with a question mark. &nbsp;</span></p>

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