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<h4>Start Cal &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');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>Start Cal</I></span> submenu<span 
 style="font-style: italic;"> <I></I></span><span>selects the calibrated ports 
 and the calibration type</span>. </p>

<p class=Figure><span style="x-condition: ZVB_A_I;"><img src="Start_Cal_menu.gif" width="450px" height="288px" border="0" class="img_whs1"></span></p>

<p>The calibration types depend on the number of test ports of the analyzer. 
 For a four-port unit: </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Start_Cal.htm#One_Port_P1_2"
	id=A1
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">One-Port 
 P1</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('A1');
//--></script></I></span> 
 and <span style="font-style: italic;"><I>One Port P2</I></span> open submenus 
 to select a one-port calibration at test ports PORT 1 and PORT 2, respectively. 
 </p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I><a 
 href="Start_Cal.htm#Two_Port_P1_P2"
	id=A12
	style="x-condition: ZVB_A_T; position: relative;">Two-Port P1 P2</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A12');
//--></script></I></span> 
 opens a submenu to select a two-port calibration at test ports PORT 1 
 and PORT 2. </p></li>
	
	<li style="x-condition: ZVB_A_T;"
		class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Start_Cal.htm#Three_Port_P1_P2_P3"
	id=A36
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Three-Port 
 P1 P2 P3</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A36');
//--></script></I></span> 
 opens a submenu to initiate a three-port (TOSM) calibration at test ports 
 PORT 1, PORT 2 and PORT 3.<span style="font-style: italic;"> <I>&nbsp;</I></span>&nbsp;</p></li>
	
	<li style="x-condition: ZVB_A_T;"
		class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Start_Cal.htm#Four_Port_P1_P2_P3_P4"
	id=A37
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Four-Port 
 P1 .. P4</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A37');
//--></script></I></span> 
 opens a submenu to initiate a four-port (TOSM) calibration at test ports 
 PORT 1, PORT 2, PORT 3 and PORT 4.<span style="font-style: italic;"> <I>&nbsp;</I></span></p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Other... 
 </I></span>opens the <a HREF="Guided_Calibration.htm"
					id=A13
					style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">calibration 
 wizard</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A13');
//--></script> 
 to select a calibration type for an arbitrary number of ports. &nbsp;</p></li>
	
	</ul>

<p><img src="../../../small_images/tips.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs3">Use <span style="font-style: italic;"><I>Other... </I></span>if 
 you wish to perform several calibrations in a single measurement sequence 
 and with a minimum of effort. The <span style="font-style: italic;"><I>Other... 
 </I></span>calibration wizard allows you to measure a particular standard 
 and reuse the results for different calibration types. &nbsp;</p>

<p>One-port to 4-port calibrations can be performed automatically using 
 the <a href="../../../System_Overview/Calibration/Automatic_Calibration.htm"
		id=a23
		style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 Unit</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('a23');
//--></script> 
 (accessory R&amp;S ZV-Z51/-Z52). For calibrations with more than 4 ports 
 use the calibration unit R&amp;S ZV-Z58. </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_whs4"> <a href="../../../Measurement_Examples/Optimization/Calibration.htm#Manual_calibration"
				id=a16
				style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Performing 
 a manual calibration</a><script type="text/javascript"
													language=JavaScript1.2><!--
kadovInitEffects('a16');
//--></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_whs4"> <span style="position: relative; x-condition: OLH;"><a 
 href="../../../Measurement_Examples/Optimization/Calibration.htm#Automatic_calibration"
	id=a20
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Performing 
 an automatic calibration</a><script type="text/javascript"
														language=JavaScript1.2><!--
kadovInitEffects('a20');
//--></script></span></p>

<table x-use-null-cells class="whs5">

<tr valign="top" class="whs6">
<td colspan="1" rowspan="1" width="24%" class="whs7">
<p class="whs8">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs9">
<p class="whs10"><a HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
													id=A15
													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, &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('A15');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs11">


<h5><a name=One_Port_P1_2></a>One Port P1, One Port P2</h5>

<p>Opens a submenu to select a one-port calibration at test ports PORT 
 1 or PORT 2. The two submenus are identical:</p>

<p class=Figure><img src="One_Port_menu.gif" width="625px" height="232px" border="0" class="img_whs12"></p>

<p>One-port calibrations can be performed automatically or manually.</p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Calibration 
 Unit</I></span> starts an automatic full one-port calibration. This function 
 is enabled while the <a HREF="../../../System_Overview/Calibration/Automatic_Calibration.htm"
						id=A21
						style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 Unit</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('A21');
//--></script> 
 is connected. </p></li>
</ul>

<p>The following menu commands calls up the start dialog of the <a href="Guided_Calibration.htm"
	id=A4
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">calibration 
 wizard</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A4');
//--></script> 
 to start a manual calibration: </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Normalization 
 (Short)</I></span> initiates a <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#Normalization" id="A2" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">normalization</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A2');
//--></script> 
 using a short standard. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Full</I></span> 
 initiates a <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#Full_One_Port" id="A5" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">full 
 one-port calibration</a><script type="text/javascript"
													language=JavaScript1.2><!--
kadovInitEffects('A5');
//--></script>. 
 </p></li>
</ul>

<table x-use-null-cells class="whs5">

<tr valign="top" class="whs6">
<td colspan="1" rowspan="1" width="24%" class="whs7">
<p class="whs8">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs9">
<p class="whs10"><a HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#AUTO"
													id=A34
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect:AUTO </span>' ', &lt;port_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A34');
//--></script> 
 <span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 matching analyzer and cal unit ports)</span> <a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#CONNection_PORTs"
												id=a19
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:COLLect:AUTO:PORTs</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a19');
//--></script> 
 </span><span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 arbitrary pairs of ports)</span></p>
<p class="whs10"><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
													id=a18
													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 , &lt;port_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a18');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs11">


<h5 class="whs13"><a name=Two_Port_P1_P2></a>Two Port P1 
 P2</h5>

<p class="whs14">Opens a submenu to select a two-port calibration 
 at test ports PORT 1 and PORT 2: </p>

<p class=Figure
	style="x-condition: ZVB_A_T;"><img src="Two_port_menu.gif" width="604px" height="279px" border="0" class="img_whs15"></p>

<p class="whs14">Two-port calibrations can be performed 
 automatically or manually.</p>

<ul type="disc" class="whs2">
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>Calibration 
 Unit</I></span> starts an automatic tow-port TOSM calibration. This function 
 is enabled while the <a href="../../../System_Overview/Calibration/Automatic_Calibration.htm"
						id=a22
						style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Calibration 
 Unit</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('a22');
//--></script> 
 is connected. </p></li>
</ul>

<p class="whs14">The following menu commands calls up the 
 start dialog of the <a href="Guided_Calibration.htm"
						id=a30
						style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">calibration 
 wizard</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a30');
//--></script> 
 to start a manual calibration: </p>

<ul type="disc" class="whs2">
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>Normalization...</I></span> 
 initiates a <a href="../../../System_Overview/Calibration/Calibration_Types.htm#Normalization"
				id=a3
				style="x-condition: ZVB_A_T; position: relative;">normalization</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a3');
//--></script> 
 using a through standard. </p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>One 
 Path Two Port</I></span> initiates a <a href="../../../System_Overview/Calibration/Calibration_Types.htm#Full_One_Port"
									id=a7
									style="x-condition: ZVB_A_T; position: relative;">full 
 one-port calibration</a><script type="text/javascript"
													language=JavaScript1.2><!--
kadovInitEffects('a7');
//--></script>. 
 </p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>TOSM 
 </I></span>initiates a <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#TOSM" id="A8" style="x-condition: ZVB_A_T; position: relative;">Through-Open-Short-Match</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A8');
//--></script> 
 (12-term) calibration</p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>TOM 
 </I></span>initiates a <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#TOM" id="A9" style="x-condition: ZVB_A_T; position: relative;">Through-Open-Match</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A9');
//--></script> 
 calibration</p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>TRL 
 </I></span>initiates a <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#TRL" id="A10" style="x-condition: ZVB_A_T; position: relative;">Through-Reflect-Line</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A10');
//--></script> 
 calibration</p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>TNA 
 </I></span>initiates a <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#TNA" id="A11" style="x-condition: ZVB_A_T; position: relative;">Through-Network-Attenuation</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A11');
//--></script> 
 calibration</p></li>
</ul>

<p class="whs14"><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs16">Use <span style="font-style: italic;"><I>Start 
 Cal &#8211; 
 Other... </I></span>to select a <span style="font-style: italic;"><I>UTOM</I></span> 
 calibration. &nbsp;</p>

<table x-use-null-cells class="whs5">

<tr valign="top" class="whs6">
<td colspan="1" rowspan="1" width="24%" class="whs7">
<p class="whs17">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs9">
<p class="whs18"><a 
 href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#AUTO"
	id=a27
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect:AUTO </span>' ', &lt;port_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a27');
//--></script> 
 <span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 matching analyzer and cal unit ports)</span> <a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#CONNection_PORTs"
												id=a29
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:COLLect:AUTO:PORTs</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a29');
//--></script> 
 </span><span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 arbitrary pairs of ports) </span></p>
<p class="whs18"><a 
 HREF="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
	id=A17
	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;, FRTRans | OPTPort | TOSM | TOM | TRL 
 | TNA, &lt;port_no&gt;,&lt;port_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A17');
//--></script> 
 </td></tr>
</table>


<hr align="center" width="50%" class="whs19">


<h5 class=Dropdownline
	style="x-condition: ZVB_A_T;"><a name=Three_Port_P1_P2_P3></a>Three 
 Port P1 P2 P3</h5>

<p class="whs14">Opens a submenu to select a three-port 
 TOSM calibration at test ports PORT 1, PORT 2 and PORT 3: </p>

<p class=Figure
	style="x-condition: ZVB_A_T;"><img src="Three_port_menu.gif" width="571px" height="211px" border="0" class="img_whs20"></p>

<p class="whs14">Three-port calibrations can be performed 
 automatically or manually.</p>

<ul type="disc" class="whs2">
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>Calibration 
 Unit</I></span> starts an automatic 3-port TOSM calibration. This function 
 is enabled while the <a href="../../../System_Overview/Calibration/Automatic_Calibration.htm"
						id=a25
						style="x-condition: ZVB_A_T; position: relative;">Calibration 
 Unit</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('a25');
//--></script> 
 is connected. </p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>Manual...</I></span> 
 calls up the start dialog of the <a href="Guided_Calibration.htm"
									id=a6
									style="x-condition: ZVB_A_T; position: relative;">calibration 
 wizard</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a6');
//--></script> 
 to initiate a 3-port <a HREF="../../../System_Overview/Calibration/Calibration_Types.htm#TOSM"
						id=A31
						style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">TOSM</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A31');
//--></script> 
 calibration. </p></li>
</ul>

<p class="whs14"><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs16">Use <span style="font-style: italic;"><I>Start 
 Cal &#8211; 
 Other...</I></span> to select other 3-port calibration types. &nbsp;</p>

<table x-use-null-cells class="whs21">

<tr valign="top" class="whs6">
<td colspan="1" rowspan="1" width="24%" class="whs7">
<p class="whs8">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs9">
<p class="whs18"><a 
 href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#AUTO"
	id=a35
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect:AUTO </span>' ', &lt;port_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a35');
//--></script> 
 <span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 matching analyzer and cal unit ports)</span> <a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#CONNection_PORTs"
												id=a38
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:COLLect:AUTO:PORTs</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a38');
//--></script> 
 </span><span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 arbitrary pairs of ports)</span></p>
<p class="whs18"><a 
 href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
	id=a28
	style="x-condition: ZVB_A_T; position: relative;">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot
	style="x-condition: ZVB_A_T;">CORRection:COLLect:METHod:DEFine<br>
&quot;</span>&lt;cal_name&gt;&quot;, TOSM, &lt;port_no&gt;, &lt;port_no&gt;, 
 &lt;port_no&gt;</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a28');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs19">


<h5 class=Dropdownline
	style="x-condition: ZVB_A_T;"><a name=Four_Port_P1_P2_P3_P4></a>Four 
 Port P1 P2 P3 P4</h5>

<p class="whs14">Opens a submenu to select a four-port 
 TOSM calibration at test ports PORT 1 to PORT 4: </p>

<p class=Figure
	style="x-condition: ZVB_A_T;"><img src="Four_port_menu.gif" width="572px" height="211px" border="0" class="img_whs22"></p>

<p class="whs14">Four-port calibrations can be performed 
 automatically or manually.</p>

<ul type="disc" class="whs2">
	
	<li style="x-condition: ZVB_A_T;
				/*begin!kadov{{*/ x-condition: ZVB_A_T;
				x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic; x-condition: ZVB_A_T;"><I>Calibration 
 Unit</I></span> starts an automatic 4-port TOSM calibration. This function 
 is enabled while the <a href="../../../System_Overview/Calibration/Automatic_Calibration.htm"
						id=a24
						style="x-condition: ZVB_A_T; position: relative;">Calibration 
 Unit</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('a24');
//--></script> 
 is connected. </p></li>
	
	<li style="x-condition: ZVB_A_T; /*begin!kadov{{*/ x-condition: ZVB_A_T; /*}}end!kadov*/ "
		class=kadov-p-CList><p class=List
								style="x-condition: ZVB_A_T;"><span style="font-style: italic;"><I>Manual...</I></span> 
 calls up the start dialog of the <a href="Guided_Calibration.htm"
									id=a26
									style="x-condition: ZVB_A_T; position: relative;">calibration 
 wizard</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a26');
//--></script> 
 to initiate a 4-port <a href="../../../System_Overview/Calibration/Calibration_Types.htm#TOSM"
						id=a32
						style="x-condition: ZVB_A_T; position: relative;">TOSM</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a32');
//--></script> 
 calibration. </p></li>
</ul>

<p class="whs14"><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs16">Use <span style="font-style: italic;"><I>Start 
 Cal &#8211; 
 Other...</I></span> to select other 4-port calibration types. &nbsp;</p>

<table x-use-null-cells class="whs21">

<tr valign="top" class="whs23">
<td colspan="1" rowspan="1" width="24%" class="whs24">
<p class="whs8">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs25">
<p class="whs18"><a 
 href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#AUTO"
	id=a39
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot>CORRection:COLLect:AUTO </span>' ', &lt;port_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a39');
//--></script> 
 <span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 matching analyzer and cal unit ports)</span> <a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#CONNection_PORTs"
												id=a40
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]<span class=dropspot>CORRection:COLLect:AUTO:PORTs</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a40');
//--></script> 
 </span><span style="font-family: Verdana, sans-serif;">&nbsp;(for 
 arbitrary pairs of ports)</span></p>
<p class="whs18"><a 
 href="../../../SCPI_Reference/SENSe/SENSe_CORRection_COLLect.htm#METHod_DEFine"
	id=a33
	style="x-condition: ZVB_A_T; position: relative;">[SENSe&lt;Ch&gt;:]<span 
 class=dropspot
	style="x-condition: ZVB_A_T;">CORRection:COLLect:METHod:DEFine<br>
&quot;</span>&lt;cal_name&gt;&quot;, TOSM, &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('a33');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs19">


<p class=Dropdownline
	style="color: #ff0000; x-condition: OLH;"><a href="Start_Cal.htm"
												id=a14
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><input type="image" name="image" src="../../../small_images/baby_up.gif" x-save-method="compute-relative" style="width: 20px;
			height: 23px;
			x-condition: OLH;"></a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a14');
//--></script></p>

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