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<h3>Measurement Wizard &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,'','Getting Started','../../Getting_Started/About_this_Chapter.htm','Guided Calibration','../Channel/Calibration/Guided_Calibration.htm');return false;" title="Related Topics"><img src="../../ss_btn_related_topics.gif" border=0 height=20 width=96 alt="Related Topics"></a>


 </h3>

<p>The <span style="font-style: italic;"><I>Measurement Wizard</I></span> menu 
 consists of a series of dialogs providing the settings for a standard 
 S-parameter measurement in a frequency sweep. </p>

<table x-use-null-cells class="whs1">

<tr valign="top" class="whs2">
<td colspan="1" rowspan="1" width="24%" class="whs3">
<p><img src="Meas_Wizard_key.gif" width="135px" height="92px" border="0" class="img_whs4"></td>
<td colspan="1" rowspan="1" width="76%" class="whs5">
<p class=Figure><img src="Meas_Wizard.jpg" width="551px" height="486px" border="0" class="img_whs6"></td></tr>
</table>

<p>The measurement comprises the following stages: </p>

<ol>
	
	<li class=kadov-p-CProcedure><p class=Procedure><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a3" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Select 
 the test setup</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a3');
//--></script> 
 </p>
<div class="droptext" id="POPUP181741790" style="display: 'none'; " x-ss-type="dropdown">
 <p>Choose the single-ended or balanced ports of the analyzer according 
 to the port configuration of your DUT and connect the DUT to the selected 
 analyzer ports. This dialog corresponds to the <span style="font-style: italic;"><I><a 
 HREF="../Channel/Mode/Balanced_Ports.htm#Predefined_Configurations"
	id=a1
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Predefined 
 Configs</a></I></span>tab of the <span style="font-style: italic;"><I>Balanced and Measured 
 Ports</I></span> dialog. </p>
 <p><img src="../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs7">The default test setup corresponds to a standard 2-port 
 S-parameter measurement. You do not need to select another test setup 
 unless you want to measure multiport parameters or apply a <a HREF="../../System_Overview/Measurement_Parameters/Balance_-_Unbalance_Conversion.htm"
	id=a4
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">unbalance-balance 
 conversion</a> 
 in order to obtain <a HREF="../../System_Overview/Measurement_Parameters/Mixed_Mode_Parameters.htm"
						id=a2
						style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">mixed 
 mode parameters</a>. 
 </p>
</div></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a24" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Define 
 port impedances</a><script type="text/javascript"
												language=JavaScript1.2><!--
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//--></script> 
 </p>
<div class="droptext" id="POPUP245204480" style="display: 'none'; " x-ss-type="dropdown">
 <p>Assign reference impedances to all physical and balanced test ports 
 selected in the previous step. The reference impedances can be complex. 
 </p>
 <p>The values for balanced ports are by pressing the <img src="../../small_images/Three_dots.gif" x-maintain-ratio="TRUE" width="16px" height="15px" border="0" class="img_whs8"> buttons 
 in a table of the following shape: </p>
 <p class=Figure
	style="font-weight: bold;"><img src="Ref_Impedance_Table.gif" width="325px" height="129px" border="0" class="img_whs9"></p>
 <p>The buttons open the <span style="font-style: italic;"><I><a href="../Channel/Mode/Virtual_Transform.htm#Reference_Impedances"
															id=a21
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Reference 
 Impedance of Physical Port</a></I></span>dialog. </p>
 <p>The values for balanced ports are by pressing the <img src="../../small_images/Three_dots.gif" x-maintain-ratio="TRUE" width="16px" height="15px" border="0" class="img_whs8"> buttons 
 in a table of the following shape: </p>
 <p class=Figure
	style="font-weight: bold;"><img src="Define_Port_Impedance.gif" width="328px" height="129px" border="0" class="img_whs10"></p>
 <p>The buttons open the <span style="font-style: italic;"><I><a HREF="../Channel/Mode/Virtual_Transform.htm#Reference_Impedances"
															id=a22
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Reference 
 Impedance of Logical Port</a></I></span>dialog. </p>
 <p><img src="../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs7">The default reference impedance of the physical analyzer 
 ports is Z<span style="vertical-align: Sub;">0</span> = 50 <span style="font-family: Symbol, serif;">W</span>. 
 The default reference impedances for balanced ports are derived hereof. 
 You do not need to change these value unless you want to renormalize the 
 port impedances; see <span style="font-style: italic;"><I><a HREF="../Channel/Mode/Virtual_Transform.htm#Reference_Impedances"
															id=a23
															style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Reference 
 Impedances</a></I></span>. 
 </p>
</div></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a5" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Select 
 the measurement parameters and the diagram areas</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a5');
//--></script> 
 </p>
<div class="droptext" id="POPUP244908210" style="display: 'none'; " x-ss-type="dropdown">
 <p>Choose an <a HREF="../../System_Overview/Measurement_Parameters/S-Parameters.htm"
				id=a7
				style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">S-parameter</a> 
 or a group of S-parameters to be measured and displayed. The measurement 
 parameters are displayed in separate diagram areas: Cartesian diagram 
 areas are used for transmission S-parameters, <a HREF="../../System_Overview/Screen_Elements/Display_Formats_and_Diagram_Types.htm#Cartesian_Diagrams"
													id=a9
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Cartesian</a> 
 or <a HREF="../../System_Overview/Screen_Elements/Display_Formats_and_Diagram_Types.htm#Smith_Chart"
		id=a10
		style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Smith</a> 
 diagrams for reflection parameters. </p>
 <p>The selections to be made depend on the test setup selected in the previous 
 stage. </p>
 <p><img src="../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs7">In case of an error in a previous stage, you can always 
 use the <span style="font-style: italic;"><I>Back </I></span><span>button and 
 correct your settings.</span></p>
</div></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a6" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Select 
 the sweep settings</a><script type="text/javascript"
													language=JavaScript1.2><!--
kadovInitEffects('a6');
//--></script> 
 </p>
<div class="droptext" id="POPUP245542503" style="display: 'none'; " x-ss-type="dropdown">
 <p>Choose the <a HREF="../Channel/Stimulus/Channel_Stimulus.htm"
				id=a11
				style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">frequency 
 range</a> 
 and the <a HREF="../Channel/Sweep/Number_of_Points.htm"
			id=a12
			style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">number 
 of measurement points</a> 
 per sweep. The sweep range is defined by two values (start and stop frequency 
 or center frequency and span). The measurement points are equidistant 
 across the sweep range. Increasing the number of points also increases 
 the measurement time per single sweep. </p>
</div></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a15" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Select 
 the measurement bandwidth and source power</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a15');
//--></script> 
 </p>
<div class="droptext" id="POPUP257513732" style="display: 'none'; " x-ss-type="dropdown">
 <p>Choose a typical <a HREF="../Channel/Power_Bandwidth_Average/Power_Bandwidth_Average.htm#Meas_Bandwidth"
						id=a13
						style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">measurement 
 bandwidth</a> 
 and one of two typical <a HREF="../Channel/Power_Bandwidth_Average/Power_Bandwidth_Average.htm#Power"
							id=a14
							style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">source 
 power</a> 
 values. A smaller measurement bandwidth increases the dynamic range but 
 slows down the measurement. A smaller source power protects the input 
 port of the analyzer from being overdriven if an active DUT with high 
 gain is measured. &nbsp;</p>
 <p><img src="../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs11"> The predefined bandwidths and source powers have been 
 selected according to the following criteria:</p>
 <ul type="disc" class="whs12">
  <li class=kadov-p-CList>
  <p class=List>The large measurement bandwidth 
 <span style="font-style: italic;"><I>(Fast Sweep)</I></span> ensures that the 
 noise of a S<span style="vertical-align: Sub;">21</span> trace at minimum 
 (&#8211;40 
 dBm) source power and 0 dB attenuation is smaller than 0.1 dB. </p></li>
  <li class=kadov-p-CList>
  <p class=List>The default source power for 
 a passive DUT ensures that the analyzer receiver is in its linear range 
 (no compression) if a passive DUT with 0 dB attenuation is measured. The 
 default source power for an active DUT ensures no compression if an active 
 DUT with 20 dB gain is measured. If the actual gain of the DUT is more 
 than 30 dB, then the default source power of &#8211;20 
 dB is still too high and needs to be changed after finishing the wizard. 
 </p></li>
 </ul>
</div></li>
	
	<li class=kadov-p-CProcedure><p class=Procedure><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a19" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Perform 
 a calibration (optional)</a><script type="text/javascript"
														language=JavaScript1.2><!--
kadovInitEffects('a19');
//--></script> 
 </p>
<div class="droptext" id="POPUP178179409" style="display: 'none'; " x-ss-type="dropdown">
 <p>Call up the <a HREF="../Channel/Calibration/Guided_Calibration.htm"
					id=a16
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">calibration 
 wizard</a> 
 and perform a calibration. The calibration type is a full n-port calibration, 
 where n is the number of analyzer ports selected in the first stage of 
 the calibration wizard. This calibration can be performed as well using 
 <a HREF="../../System_Overview/Calibration/Automatic_Calibration.htm"
	id=a20
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">automatic 
 calibration</a> 
 (if accessory R&amp;S ZV-Z51/-Z52 or R&amp;S ZV-Z58, Calibration Unit, 
 is available). </p>
 <p><img src="../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs13">You can skip the automatic calibration stage (select <span 
 style="font-style: italic;"><I>Finish now without calibration)</I></span> if 
 </p>
 <ul type="disc" class="whs12">
  <li class=kadov-p-CList>
  <p class=List>A valid calibration is already 
 assigned to the active channel</p></li>
  <li class=kadov-p-CList>
  <p class=List>You want to apply a valid calibration 
 stored in the <a HREF="../Channel/Calibration/Calibration_Manager.htm"
					id=a17
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">cal 
 pool</a></p></li>
  <li class=kadov-p-CList>
  <p class=List>You want to perform the calibration 
 manually, e.g. because you wish to select another <a HREF="../../System_Overview/Calibration/Calibration_Types.htm" id="a18" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">calibration 
 type</a>. 
 </p></li>
  <li class=kadov-p-CList>
  <p class=List>You don't want to use a calibration, 
 e.g. because the factory calibration is accurate enough for your measurement. 
 </p></li>
 </ul>
</div></li>
</ol>

<p class=Note><img src="../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs7"> In order to obtain a predictable result the 
 measurement wizard has to reset all settings except the current calibration 
 data. Store your setup if you don't want to lose the current configuration.</p>


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