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<h4>Mixer &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,'','SENSe:FREQuency:CONVersion:MIXer','../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm','SOURce&lt;Ch&gt;','../../../SCPI_Reference/SOURce/SOURce_Ch.htm');return false;" title="Related Topics"><img src="../../../ss_btn_related_topics.gif" border=0 height=20 width=96 alt="Related Topics"></a>


 &nbsp;</h4>

<p>The <span style="font-style: italic;"><I>Mixer</I></span> submenu<span style="font-style: italic;"> 
 <I></I></span>controls the measurement of the mixing products generated by an 
 external mixer that is supplied with two independent RF signals. Together 
 with the <span style="font-style: italic;"><I><a HREF="Harmonic_Distortion.htm"
												id=A39
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Harmonic 
 Distortion</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A39');
//--></script></I></span> 
 measurement<span style="font-style: italic; x-condition: ZVA_T;"> <I></I></span><span 
 style="x-condition: ZVA_T;">and the arbitrary configuration of generator 
 and receiver frequencies </span><span style="font-style: italic; x-condition: ZVA_T;"><I>(<a 
 href="Channel_Mode.htm#Port_Configuration"
	id=a23
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Port 
 Configuration</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a23');
//--></script>)</I></span><span 
 style="font-style: italic;"><I>,</I></span> the mixer mode is included in option 
 R&amp;S <span style="x-condition: ZVA_T;">ZVA-K4</span>. 
 </p>

<p class=Dropdownline><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs1"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a17" style="x-text-underline: normal;
												color: #008000;
												/*begin!kadov{{*/ position: relative;
												text-decoration: underline; /*}}end!kadov*/ ">Mixer 
 Measurements</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a17');
//--></script></p>

<div class="droptext" id="POPUP238750913" style="display: 'none'; " x-ss-type="dropdown">
 <p>RF mixers convert an RF signal at one frequency into a signal at another 
 frequency. The frequency that is to be shifted is applied at the RF input 
 and the frequency shifting signal (from a local oscillator, LO) is applied 
 to the RF mixer's LO port, resulting in an output signal at the mixer's 
 Intermediate Frequency (IF) port. </p>
 <p>For a given RF signal, an ideal mixer would produce only two IF outputs: 
 one at the frequency sum of the RF and LO (IF = RF + LO), and another 
 at the frequency difference between the RF and LO (IF = |RF &#8211; 
 LO|). Filtering can be used to select one of these IF outputs and reject 
 the unwanted one. </p>
 <p>In the mixer mode the analyzer provides the following functionality: 
 </p>
 <ul type="disc" class="whs2">
  <li class=kadov-p-CList>
  <p class=List>Configuration of the RF and LO 
 signals and measurement of the generated IF signal, see <span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Define_Mixer_Mode"
	id=a10
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Define 
 Mixer Mode</a></I></span> 
 and<span style="font-style: italic;"><I><a href="Mixer_Mode.htm#Mixer_Signal_Diagram"
											id=a28
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Mixer 
 Signal Diagrams</a></I></span>. 
 </p></li>
  <li class=kadov-p-CList>
  <p class=List>Power calibration of the signal 
 sources and of the IF receiver; see <span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Mixer_Power_Cal"
	id=a24
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Mixer 
 Power Calibration</a></I></span>. 
 </p></li>
  <li class=kadov-p-CList>
  <p class=List>The mixer mode can be used also 
 to test important performance parameters of RF mixers such as frequency 
 ranges, conversion loss, compression, and isolation. </p></li>
 </ul>
 <p>&nbsp;</p>
</div>
<p class=Figure><img src="Mixer_mode_menu.gif" width="441px" height="212px" border="0" class="img_whs3"></p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Mixer_Mode"
	id=A1
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Mixer 
 Meas</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('A1');
//--></script></I></span> 
 and <span style="font-style: italic;"><I><a href="Mixer_Mode.htm#Mixer_Mode"
											id=A2
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Freq 
 Conv Off</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A2');
//--></script></I></span> 
 toggle between the (frequency-converting) mixer mode and normal (non frequency 
 converting) operation. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Define_Mixer_Mode"
	id=A26
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Define 
 Mixer Meas...</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A26');
//--></script></I></span> 
 opens a dialog to configure the mixer input signals. &nbsp;</p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Mixer_Power_Cal"
	id=A27
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Mixer 
 Power Cal...</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A27');
//--></script> 
 </I></span>opens a dialog to perform a power calibration of the signal sources 
 and of the IF receiver. &nbsp;&nbsp;</p></li>
</ul>

<hr align="center" width="50%" class="whs4">


<h5><span class=dropspot><a name=Mixer_Mode></a>Mixer Meas, Freq Conv Off</span> 
 </h5>

<p>The two softkeys <span style="font-style: italic;"><I>Mixer Meas </I></span>and 
 <span style="font-style: italic;"><I>Freq Conv Off </I></span>toggle between 
 the (frequency-converting) mixer mode and normal operation, where the 
 analyzer measures the unconverted fundamental wave. </p>

<p><span style="font-style: italic;"><I>Freq Conv Off</I></span> also<span style="font-style: italic;"> 
 <I></I></span>disables an active harmonic distortion measurement. A <span style="font-style: italic;"><I>Mix</I></span> 
 label in the <a HREF="../../../System_Overview/Screen_Elements/Display_Elements.htm#Channel_Settings"
				id=A5
				style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">channel 
 list</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('A5');
//--></script> 
 indicates that the mixer mode is active. </p>

<p class=Figure><img src="Channel_Mix.gif" width="443px" height="23px" border="0" class="img_whs5"></p>

<table x-use-null-cells class="whs6">

<tr valign="top" class="whs7">
<td colspan="1" rowspan="1" width="24%" class="whs8">
<p class="whs9">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs10">
<p class="whs11"><a href="../../../SCPI_Reference/SENSe/SENSe_FREQuency.htm#CONVersion"
	id=a4
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]FREQuency:CONVersion 
 MIXer | FUNDamental</a><script type="text/javascript"
													language=JavaScript1.2><!--
kadovInitEffects('a4');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs4">


<h5><span class=dropspot><a name=Define_Mixer_Mode></a>Define Mixer Meas...</span> 
 </h5>

<p>Opens a configuration dialog for the mixer input signals. </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Mixer_Measurement_menu.jpg" width="435px" height="320px" border="0" class="img_whs12"></p>

<p>In the upper part the <span style="font-style: italic;"><I>Define Mixer 
 Measurement </I></span>dialog shows a <a href="Mixer_Mode.htm#Mixer_Signal_Diagram"
										id=A8
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">diagram</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A8');
//--></script> 
 with the RF and LO signals, the mixing product (IF), and the current frequency 
 and power ranges for all signals. Below the dialog provides the following 
 control elements: </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List>The port selection list contains 
 all analyzer ports or external generators which can provide the local 
 oscillator (LO) signal. Ports no. 1 and 2 are always used for the RF signal 
 and the measured IF signal (mixing product), so they are not included 
 in the list. Generators 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=A16
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">External 
 Generators</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A16');
//--></script></I></span><span 
 style="font-style: italic;"> <I></I></span>dialog<span style="font-style: italic;"> 
 <I></I></span>before they appear in the list. <span style="font-style: italic;"><I>None 
 </I></span>means that the input signal at LO (if available) is not controlled 
 by the analyzer.<span style="font-style: italic;"> <I></I></span></p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Config 
 Ext. Generators... </I></span>opens the <span style="font-style: italic;"><I>System 
 Configuration </I></span>&#8211; 
 <span style="font-style: italic;"><I>External Generators</I></span> dialog for 
 adding and configuring external generators. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Set_Power"
	id=A18
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Set 
 Power...</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A18');
//--></script></I></span> 
 opens a dialog to control the power of the RF and the LO signals. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Set_Frequencies"
	id=A22
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Set 
 Frequencies...</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('A22');
//--></script></I></span> 
 opens a dialog to control the frequency of the RF and the LO signal and 
 the analyzer (IF signal) frequency. </p></li>
	
	</ul>

<table x-use-null-cells class="whs6">

<tr valign="top" class="whs7">
<td colspan="1" rowspan="1" width="24%" class="whs8">
<p class="whs9">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs10">
<p class="whs11"><a href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm#LOINternal"
	id=a32
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]FREQuency:CONVersion:MIXer:LOINternal 
 &lt;port_no&gt;</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a32');
//--></script><a 
 href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm#LOEXternal"
	id=a33
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]FREQuency:CONVersion:MIXer:LOEXternal &lt;gen_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a33');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs4">


<h5><span class=dropspot><a name=Mixer_Signal_Diagram></a>Mixer Signal 
 Diagrams...</span> </h5>

<p>The mixer signal diagrams show the parameters of the mixer input signals 
 <span style="font-style: italic;"><I>(RF, LO)</I></span> and of the mixing product 
 (IF signal, output). The diagrams appear in the <span style="font-style: italic;"><I>Mixer 
 Measurement, Set Power, </I></span>and <span style="font-style: italic;"><I>Set 
 Frequencies </I></span>dialogs. </p>

<p class=Figure><img src="Mixer_diagram_1.gif" width="158px" height="89px" border="0" class="img_whs13"></p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List>The <span style="font-style: italic;"><I>RF</I></span> 
 signal is the stimulus signal that the analyzer generates with the current 
 channel settings. After a reset the frequency and power of the RF signal 
 is as defined in the <span style="font-style: italic;"><I>Channel </I></span>&#8211; <span style="font-style: italic;"><I>Stimulus</I></span> 
 menu. The RF signal parameters can be changed in the <span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Set_Power"
	id=a19
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Set 
 Power...</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a19');
//--></script></I></span> 
 and <span style="font-style: italic;"><I><a href="Mixer_Mode.htm#Set_Frequencies"
											id=a20
											style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Set 
 Frequencies...</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a20');
//--></script></I></span> 
 dialogs. </p></li>
	
	<li class=kadov-p-CList><p class=List>The Local Oscillator <span style="font-style: italic;"><I>(LO) 
 </I></span><span>signal is an additional RF signal that is either generated 
 by the network analyzer (at one of the ports that are not used for the 
 RF and IF signals) or by an external generator.</span> </p></li>
	
	<li class=kadov-p-CList><p class=List>The <span style="font-style: italic;"><I>IF 
 </I></span>signal is the mixer output signal (mixing product), which is at 
 one of the following frequencies: IF = LO + RF or IF = |LO &#8211; 
 RF|, i.e. LO &#8211; 
 RF (for LO &gt; RF) or IF = RF &#8211; 
 LO (for RF &gt; LO). The IF frequency is selected in the <span style="font-style: italic;"><I><a 
 href="Mixer_Mode.htm#Set_Frequencies"
	id=a21
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Set 
 Frequencies...</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a21');
//--></script></I></span> 
 dialog. </p></li>
</ul>

<p class=Note><img src="../../../small_images/tip.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs14"> The signal description above with the swept 
 RF signal and the LO signal at a fixed frequency corresponds to the default 
 configuration. In the <span style="font-style: italic;"><I>Set Frequencies 
 </I></span>dialog, you can interchange the role of the signals, selecting 
 any of the signals as a <span style="font-style: italic;"><I>Sweep/CW </I></span>signal, 
 a signal at <span style="font-style: italic;"><I>Fixed </I></span>frequency<span 
 style="font-style: italic;"> <I></I></span>or at the calculated sum or difference 
 frequency <span style="font-style: italic;"><I>(Auto). </I></span></p>

<p>The labeling of the complete diagram depends on the sweep type. </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a29" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Frequency 
 sweep</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a29');
//--></script> 
 </p>
<div class="droptext" id="POPUP165778881" style="display: 'none'; " x-ss-type="dropdown">
 <p>For a frequency sweep, the signal diagram is labeled as follows: </p>
 <p class=Figure><img src="Mixer_diagram_3.gif" width="416px" height="181px" border="0" class="img_whs15"></p>
 <ul type="disc" class="whs2">
  <li class=kadov-p-CList>
  <p class=List><span style="font-style: italic;"><I>RF</I></span> 
 signal: Fixed port number (1), CW power, frequency sweep range. &nbsp;</p></li>
  <li class=kadov-p-CList>
  <p class=List>LO signal: Signal source (analyzer 
 port or external generator), fixed power and frequency. &nbsp;</p></li>
  <li class=kadov-p-CList>
  <p class=List>IF signal: Fixed port number 
 (2), frequency range = (sweep range + LO) or |sweep range &#8211; 
 LO|.</p></li>
 </ul>
</div></li>
	
	<li class=kadov-p-CList><p class=List><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a30" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Power 
 sweep</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a30');
//--></script> 
 </p>
<div class="droptext" id="POPUP169999924" style="display: 'none'; " x-ss-type="dropdown">
 <p class=List>For a power sweep, the signal diagram is labeled as follows: 
 </p>
 <p class=Figure><img src="Mixer_diagram_4.gif" width="427px" height="179px" border="0" class="img_whs16"></p>
 <ul type="disc" class="whs2">
  <li class=kadov-p-CList>
  <p class=List><span style="font-style: italic;"><I>RF</I></span> 
 signal: Fixed port number (1), power sweep range (or fixed power, if the 
 LO signal is swept), CW frequency. &nbsp;</p></li>
  <li class=kadov-p-CList>
  <p class=List>LO signal: Signal source (analyzer 
 port or external generator), fixed power (or power sweep range, if the 
 RF signal is at a fixed power), CW frequency. &nbsp;</p></li>
  <li class=kadov-p-CList>
  <p class=List>IF signal: Fixed port number 
 (2), fixed frequency = (RF + LO) or |RF &#8211; 
 LO|. &nbsp;</p></li>
 </ul>
</div></li>
	
	<li class=kadov-p-CList><p class=List><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a31" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Time 
 or CW mode sweep</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a31');
//--></script> 
 </p>
<div class="droptext" id="POPUP84140132" style="display: 'none'; " x-ss-type="dropdown">
 <p class=List>For a <span style="font-style: italic;"><I>Time </I></span><span>or 
 </span><span style="font-style: italic;"><I>CW Mode</I></span> sweep, the signal 
 diagram is labeled as follows: </p>
 <p class=Figure><img src="Mixer_diagram_2.gif" width="418px" height="180px" border="0" class="img_whs17"></p>
 <ul type="disc" class="whs2">
  <li class=kadov-p-CList>
  <p class=List><span style="font-style: italic;"><I>RF</I></span> 
 signal: Fixed port number (1), fixed power, CW frequency. &nbsp;</p></li>
  <li class=kadov-p-CList>
  <p class=List>LO signal: Signal source (analyzer 
 port or external generator), fixed power, CW frequency. &nbsp;</p></li>
  <li class=kadov-p-CList>
  <p class=List>IF signal: Fixed port number 
 (2), fixed frequency = (RF + LO) or |RF &#8211; 
 LO|. &nbsp;</p></li>
 </ul>
</div></li>
</ul>


<hr align="center" width="50%" class="whs4">


<h5><span class=dropspot><a name=Set_Power></a>Set Power</span> </h5>

<p>The <span style="font-style: italic;"><I>Set Power </I></span>dialog defines 
 the power of the RF and the LO signals. </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Set_power_menu.jpg" width="404px" height="384px" border="0" class="img_whs18"> </p>

<p>The diagram contains the mixer <a href="Mixer_Mode.htm#Mixer_Signal_Diagram"
									id=a7
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">signal 
 diagram</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a7');
//--></script> 
 and the following control elements: </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List>The <span style="font-style: italic;"><I>RF 
 Power </I></span>radio button groups specify how the power for each signal 
 is defined. The roles of the mixer input signals RF and LO are interchangeable: 
 One signal is at the analyzer's channel power <span style="font-style: italic;"><I>(Sweep 
 </I></span><span>or </span><span style="font-style: italic;"><I>CW, </I></span>the 
 signal is swept if a power sweep is active; it is at fixed power (CW) 
 for the other sweep types), the other is at the <span style="font-style: italic;"><I>Fixed</I></span> 
 power defined below. </p></li>
	
	<li class=kadov-p-CList><p class=List>The input fields in the <span 
 style="font-style: italic;"><I>Sweep/CW Power </I></span>panel define the channel 
 power and overwrite the power settings in the <span style="font-style: italic;"><I>Channel 
 </I></span>&#8211;<span 
 style="font-style: italic;"><I> Stimulus</I></span> and <span style="font-style: italic;"><I>Channel 
 </I></span>&#8211;<span 
 style="font-style: italic;"><I> Power Bandwidth Average</I></span> menus. The 
 sweep range or CW power is assigned to the signal with <span style="font-style: italic;"><I>Sweep/CW</I></span> 
 power definition. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Fixed 
 Power</I></span> defines the power to be assigned to<span style="font-style: italic;"> 
 <I></I></span>the signal with <span style="font-style: italic;"><I>Fixed</I></span> 
 power definition. </p></li>
</ul>

<table x-use-null-cells class="whs6">

<tr valign="top" class="whs7">
<td colspan="1" rowspan="1" width="24%" class="whs8">
<p class="whs9">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs10">
<p class="whs11"><a HREF="../../../SCPI_Reference/SOURce/SOURce_Ch.htm#FREQuency_CONVersion_MIXer_FUNDamental"
	id=A9
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:]FREQuency:CONVersion:MIXer:FUNDamental 
 RF | LO</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A9');
//--></script><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch.htm#FREQuency_CONVersion_MIXer_PFIXed"
	id=A11
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:]FREQuency:CONVersion:MIXer:PFIXed &lt;power&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A11');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs4">


<h5><span class=dropspot><a name=Set_Frequencies></a>Set Frequencies</span> 
 </h5>

<p>Controls the frequency of the RF and the LO signal and the analyzer 
 (IF signal) frequency. </p>

<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Set_Frequencies_menu.jpg" width="470px" height="405px" border="0" class="img_whs19"> </p>

<p>The diagram contains the mixer <a href="Mixer_Mode.htm#Mixer_Signal_Diagram"
									id=A37
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">signal 
 diagram</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A37');
//--></script> 
 and the following control elements: </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List>The ...<span style="font-style: italic;"><I>Frequency 
 </I></span><span>radio button groups specify how the frequency for each signal 
 is defined. The roles of the three signals RF, IF, LO are interchangeable: 
 One signal is at the analyzer's channel frequency </span><span style="font-style: italic;"><I>(Swept/CW, 
 </I></span><span>the signal is swept if a frequency sweep type is active; 
 it is a CW signal for the other sweep types), the second is at the </span><span 
 style="font-style: italic;"><I>Fixed </I></span><span>frequency defined below, 
 the frequency of the third signal is calculated according to the selected 
 </span><span style="font-style: italic;"><I>Conversion </I></span><span>formula.</span> 
 </p></li>
	
	<li class=kadov-p-CList><p class=List>The input fields in the <span 
 style="font-style: italic;"><I>Swept Frequency </I></span>panel define the channel 
 frequency and overwrite the <span style="font-style: italic;"><I>Channel 
 </I></span>&#8211;<span 
 style="font-style: italic;"><I> Stimulus</I></span> settings. The sweep range 
 or CW frequency is assigned to the signal with <span style="font-style: italic;"><I>Swept/CW 
 </I></span><span>frequency definition.</span> </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Fixed 
 Frequency</I></span> defines the frequency to be assigned to<span style="font-style: italic;"> 
 <I></I></span>the signal with <span style="font-style: italic;"><I>Fixed </I></span>frequency 
 definition. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Conversion</I></span> 
 selects the frequency of the signal with <span style="font-style: italic;"><I>Auto 
 </I></span>frequency definition, see background information below. &nbsp;</p></li>
</ul>

<p class=Dropdownline><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs1"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a12" style="x-text-underline: normal;
												color: #008000;
												/*begin!kadov{{*/ position: relative;
												text-decoration: underline; /*}}end!kadov*/ ">Conversion 
 formulas</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a12');
//--></script></p>

<div class="droptext" id="POPUP169907424" style="display: 'none'; " x-ss-type="dropdown">
 <p>The IF signal can be at the sum or at the difference of the RF and LO 
 frequencies. </p>
 <ul type="disc" class="whs2">
  <li class=kadov-p-CList>
  <p class=List>IF = RF &#8211; 
 LO means that the RF signal is down-converted (upper sideband). The analyzer 
 automatically switches to IF = LO &#8211; 
 RF if the LO frequency is above the RF input frequency. </p></li>
  <li class=kadov-p-CList>
  <p class=List>IF = LO &#8211; 
 RF means that the LO signal is down-converted (lower sideband). The analyzer 
 automatically switches to IF = RF &#8211; 
 LO if the RF input frequency is above the LO frequency. </p></li>
  <li class=kadov-p-CList>
  <p class=List>IF = LO + RF means that the RF 
 input signal is up-converted. &nbsp;</p></li>
 </ul>
 <p>In a frequency sweep mode where one of the input frequencies varies 
 over a definite range, the IF signal also covers a frequency range of 
 the same width. An error message is displayed if the IF frequency exceeds 
 the maximum frequency range of the analyzer.</p>
 <p>If the RF or LO signal is in <span style="font-style: italic;"><I>Auto 
 </I></span><span>mode, the formulas for IF are automatically converted, and 
 the analyzer calculates the RF or LO frequency from the other frequencies.</span></p>
</div><table x-use-null-cells class="whs6">

<tr valign="top" class="whs7">
<td colspan="1" rowspan="1" width="24%" class="whs8">
<p class="whs9">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs10">
<p class="whs11"><a href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm#FFIXed"
	id=a13
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]FREQuency:CONVersion 
 MIXer:FFIXed &lt;frequency&gt;</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a13');
//--></script><a 
 href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm#FIXed"
	id=a15
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]FREQuency:CONVersion MIXer:FIXed RF | IF | LO</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a15');
//--></script><a 
 href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm#FFIXed"
	id=a34
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "> </a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a34');
//--></script><a 
 href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm#FUNDamental"
	id=a35
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]FREQuency:CONVersion MIXer:FUNDamental RF | IF | LO</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a35');
//--></script><a 
 href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CONVersion_MIXer.htm#TFRequency"
	id=a36
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]FREQuency:CONVersion MIXer:TFRequency DCLower | DCUPper 
 | UCONversion</a><script type="text/javascript"
												language=JavaScript1.2><!--
kadovInitEffects('a36');
//--></script><a 
 href="../../../SCPI_Reference/SENSe/SENSe_FREQuency_CW.htm#STARt"
	id=a14
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]FREQuency:STARt</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a14');
//--></script><span 
 style="font-family: Verdana, sans-serif;"> etc. </span></td></tr>
</table>


<hr align="center" width="50%" class="whs4">


<h5><span class=dropspot><a name=Mixer_Power_Cal></a>Mixer Power Cal...</span> 
 </h5>

<p>Opens a dialog to perform a power calibration of the signal sources 
 and of the IF receiver. A power calibration ensures accurate levels of 
 the mixer input signals (RF and LO source power calibration) and an accurate 
 power measurement of the mixer output signal (IF receiver calibration). 
 The necessary calibration steps are automatically performed across the 
 entire frequency range of the active mixer measurement <span style="font-style: italic;"><I>(<a 
 href="Mixer_Mode.htm#Set_Frequencies"
	id=A40
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Set 
 Frequencies</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A40');
//--></script>).</I></span> 
 </p>

<p class=Dropdownline><img src="../../../small_images/info_red.jpg" x-maintain-ratio="TRUE" width="32px" height="37px" border="0" class="img_whs1"><a class="dropspot" href="javascript:kadovTextPopup(this)" id="a41" style="x-text-underline: normal;
												color: #008000;
												/*begin!kadov{{*/ position: relative;
												text-decoration: underline; /*}}end!kadov*/ ">Mixer 
 Power Cal procedure and example</a><script type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a41');
//--></script></p>

<div class="droptext" id="POPUP166010401" style="display: 'none'; " x-ss-type="dropdown">
 <p>Due to the different frequency ranges of the input and output signals 
 and the external equipment needed, the mixer power calibration must be 
 performed in several steps. For a test setup where the RF and LO signals 
 are provided by port 1 and an external generator, respectively, where 
 the RF signal is swept, and where the IF signal is analyzed at port 2, 
 the following test setups are required: &nbsp;</p>
 <ol>
  <li class=kadov-p-CProcedure>
  <p class=Procedure>Source power calibration 
 for the RF signal. A power sensor is connected to port 1. The RF power 
 (red) is calibrated over the selected RF sweep range. As a preparative 
 for step 2 the analyzer also calibrates the source at the fixed IF frequency. 
 The correction data for both calibration sweeps is stored. </p></li>
 </ol>
 <p class=Figure><img src="Source_power_calibration_setup.jpg" width="437px" height="241px" border="0" class="img_whs20"></p>
 <ol start="2" type="1" class="whs21">
  <li class=kadov-p-CProcedure>
  <p class=Procedure>Receiver power calibration 
 for the IF signal. No external device is needed. The receiver (port 2) 
 is calibrated at the IF frequency using the source signal from port 1 
 (red) calibrated in the first step. </p></li>
 </ol>
 <p class=Figure><img src="Receiver_Power_calibration_setup.jpg" width="441px" height="215px" border="0" class="img_whs22"></p>
 <ol start="3" type="1" class="whs21">
  <li class=kadov-p-CProcedure>
  <p class=Procedure>Source power calibration 
 for the LO signal, provided by an external generator. A power sensor is 
 connected to the generator's RF output (red signal). The analyzer controls 
 the generator, its RF power (red) is calibrated at the selected IF frequency. 
 No RF connection to or from the network analyzer is needed. &nbsp;</p></li>
 </ol>
 <p class=Figure><img src="Source_power_calibration_setup2.jpg" width="522px" height="377px" border="0" class="img_whs23"></p>
</div>
<p class=Figure
	style="x-condition: Webhelp_Print;"><img src="Mixer_Calibration_menu.jpg" width="184px" height="428px" border="0" class="img_whs24"> </p>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Config 
 Ext. Power Meters... </I></span>opens 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=a38
										style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">External 
 Power Meters</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('a38');
//--></script></I></span> 
 dialog for adding and configuring external power meters. </p></li>
	
	<li class=kadov-p-CList><p class=List><span style="font-style: italic;"><I>Take 
 Cal Sweep</I></span> in the three numbered panels<span style="font-style: italic;"> 
 <I></I></span>start the calibration sweeps for the RF source, IF receiver, and 
 the LO source, respectively. The calibration sweep are performed at the 
 test settings defined in the <span style="font-style: italic;"><I><a HREF="../Calibration/Power_Calibration.htm#Source_Power_Cal"
	id=A42
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Source 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A42');
//--></script> 
 </I></span>and <span style="font-style: italic;"><I><a HREF="../Calibration/Power_Calibration.htm#Receiver_Power_Cal"
												id=A43
												style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">Receiver 
 Power Cal</a><script type="text/javascript"
											language=JavaScript1.2><!--
kadovInitEffects('A43');
//--></script> 
 </I></span>menus. A popup box shows the progress of the calibration. </p></li>
</ul>

<p class=Figure><img src="Take_cal_sweep.jpg" width="285px" height="212px" border="0" class="img_whs25"> </p>

<table x-use-null-cells class="whs6">

<tr valign="top" class="whs7">
<td colspan="1" rowspan="1" width="24%" class="whs26">
<p class="whs9">Remote control:</td>
<td colspan="1" rowspan="1" width="76%" class="whs27"><span style="font-family: 'Courier New', monospace;"><a href="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#PMETer_ID"
	id=a25
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:PMETer:ID</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a25');
//--></script><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#MIXer_RF_ACQuire"
	id=a45
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:MIXer:RF[:ACQuire]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a45');
//--></script></span><a 
 href="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm#MIXer_IF_ACQuire"
	id=a46
	style="font-family: 'Courier New', monospace; /*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><span 
 style="font-family: 'Courier New', monospace;"><a href="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm#MIXer_IF_ACQuire"
													id=a44
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
[SENSe&lt;Ch&gt;:]</span><span class=dropspot
								style="font-family: 'Courier New', monospace;">CORRection:POWer&lt;port_no&gt;:</span><span 
 style="font-family: 'Courier New', monospace;">MIXer:IF:ACQuire</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a44');
//--></script><a 
 href="../../../SCPI_Reference/SENSe/SENSe_CORRection_POWer.htm"
	id=a47
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">&nbsp;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a47');
//--></script><a 
 HREF="../../../SCPI_Reference/SOURce/SOURce_Ch__POWer_CORRection.htm#MIXer_LO_ACQuire"
	id=a48
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ "><br>
SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:CORRection:MIXer:LO[:ACQuire]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a48');
//--></script></span></a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a46');
//--></script></td></tr>
</table>


<hr align="center" width="50%" class="whs4">


<p class="whs28"><a title="Back to top" href="Mixer_Mode.htm" id="a3" style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ " onmouseover="if ((parseInt(navigator.appVersion) == 4) && (navigator.appName == 'Netscape')) ehlp_showtip(this,event,'Back to top');" onmouseout="if ((parseInt(navigator.appVersion) == 4) && (navigator.appName == 'Netscape')) ehlp_hidetip();"><input 
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