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<h3>SOURce&lt;Ch&gt;:... &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,'','Channel - Mode (source settings)','../../MMI_Reference/Channel/Mode/Channel_Mode.htm#Source','Power Bandwidth Average','../../MMI_Reference/Channel/Power_Bandwidth_Average/Power_Bandwidth_Average.htm','SOURce&lt;Ch&gt;:POWer:CORRection','SOURce_Ch__POWer_CORRection.htm');return false;" title="Related Topics"><img src="../../ss_btn_related_topics.gif" border=0 height=20 width=96 alt="Related Topics"></a>


 &nbsp;</h3>

<p>This subsystem controls the frequency and power of the internal signal 
 source, configures and starts the source power calibration, and provides 
 output port settings. </p>

<p class=space>&nbsp;</p>

<p class="whs1">Command tree: <a class="dropspot" href="javascript:kadovTextPopup(this)" id="a15" style="x-condition: OLH; /*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a15');
//--></script></p>

<div class="droptext" id="POPUP259858720" style="display: 'none'; " x-ss-type="dropdown">
 <p class=Befehl
	style="margin-left: 144pt;">:FREQuency</p>
 <p class=Befehl
	style="margin-left: 162pt;"><a href="SOURce_Ch.htm#CW"
									id=a8
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[:CW] 
 | FIXed</a></p>
 <p class=Befehl
	style="margin-left: 162pt;">:CONVersion</p>
 <p class=Befehl
	style="margin-left: 180pt;">:ARBitrary</p>
 <p class=Befehl
	style="margin-left: 198pt;"><a href="#CONVersion_ARBitrary_IFRequency"
									id=a2
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:IFRequency</a></p>
 <p class=Befehl
	style="margin-left: 180pt;">:MIXer</p>
 <p class=Befehl
	style="margin-left: 198pt;"><a href="SOURce_Ch.htm#FREQuency_CONVersion_MIXer_FUNDamental"
									id=a25
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:FUNDamental</a></p>
 <p class=Befehl
	style="margin-left: 198pt;"><a href="SOURce_Ch.htm#FREQuency_CONVersion_MIXer_PFIXed"
									id=a29
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:PFIXed</a></p>
 <p class=Befehl
	style="margin-left: 144pt;"><a href="SOURce_Ch.htm#GROup"
									id=a13
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:GROup</a></p>
 <p class=Befehl
	style="margin-left: 162pt;"><a href="SOURce_Ch.htm#GROup_CLEar"
									id=a14
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:CLEar</a></p>
 <p class=Befehl
	style="margin-left: 144pt;"><a href="SOURce_Ch.htm#LPORt"
									id=a30
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:LPORt</a></p>
 <p class=Befehl
	style="margin-left: 162pt;"><a href="SOURce_Ch.htm#LPORt_CLEar"
									id=a31
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:CLEar</a></p>
 <p class=Befehl
	style="margin-left: 144pt;">:POWer</p>
 <p class=Befehl
	style="margin-left: 162pt; x-condition: ZVA_only;"><a href="SOURce_Ch__POWer__LEVel_.htm#ATTenuation"
															id=a5
															style="x-condition: ZVA_only; /*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:ATTenuation</a></p>
 <p class=Befehl
	style="margin-left: 162pt;"><a HREF="SOURce_Ch__POWer_CORRection.htm"
									id=a1
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:CORRection</a><span style="color: #000000;"><font color=black >(source power calibration commands)</font></span></p>
 <p class=Befehl
	style="margin-left: 162pt;">[:LEVel|</p>
 <p class=Befehl
	style="margin-left: 182pt;">[:IMMediate]</p>
 <p class=Befehl
	style="margin-left: 202pt;"><a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_LEVel"
									id=a3
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[:AMPLitude]</a></p>
 <p class=Befehl
	style="margin-left: 202pt; x-condition: ZVA_T;"><a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_OFFSet"
														id=a4
														style="x-condition: ZVA_T; /*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:OFFset</a></p>
 <p class=Befehl
	style="margin-left: 202pt;"><a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_SLOPe"
									id=a18
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:SLOPe</a></p>
 <p class=Befehl
	style="margin-left: 162pt;"><a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_STARt"
									id=a20
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:STARt</a></p>
 <p class=Befehl
	style="margin-left: 162pt;"><a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_STATe"
									id=a22
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:STATe</a></p>
 <p class=Befehl
	style="margin-left: 162pt;"><a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_STOP"
									id=a23
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">:STOP</a></p>
</div>
<p class=Note><span style="font-weight: bold;"><B>Note:</B></span> The SOURce&lt;Ch&gt;:POWer... 
 subsystem comprises port-specific and general settings. Port-specific 
 settings are valid for the port specified by the numeric suffix <span 
 style="font-family: 'Courier New', monospace;">&lt;Pt&gt;</span> (...<span 
 style="font-family: 'Courier New', monospace;">:POWER&lt;Pt&gt;:</span>...). 
 General settings are valid for all test ports of the analyzer; the port 
 suffix is ignored. Refer to the description of the individual commands 
 for more information. &nbsp;</p>


<hr align="center" width="50%" class="whs2">


<h5><a name=CW></a>SOURce&lt;Ch&gt;:FREQuency&lt;Pt&gt;[:CW] &lt;fixed 
 frequency&gt;<br>
SOURce&lt;Ch&gt;:FREQuency&lt;Pt&gt;:FIXed &lt;fixed frequency&gt;</h5>

<p>Defines the fixed (Continuous Wave, CW) frequency for all sweep types 
 operating at fixed frequency (power sweep, time sweep, CW mode sweep). 
 The two command forms <span style="font-family: 'Courier New', monospace;">SOUR:FREQ:CW</span> 
 and <span style="font-family: 'Courier New', monospace;">SOUR:FREQ:FIX</span> 
 are equivalent. </p>

<p><img src="../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs3"> <span style="font-family: 'Courier New', monospace;">SOURce&lt;Ch&gt;:FREQuency&lt;Pt&gt;:CW|FIXed</span><span 
 style="font-family: Arial, sans-serif;"> is equivalent to </span><span 
 style="font-family: 'Courier New', monospace;"><a HREF="../SENSe/SENSe_FREQuency_CW.htm#CW"
													id=A7
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]FREQuency:CW|FIXed</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A7');
//--></script></span><span 
 style="font-family: Arial, sans-serif;">. Source and receiver frequency 
 are equal; the four commands overwrite each other. </span><span style="font-family: Arial, sans-serif; x-condition: ZVA_T;">With 
 option ZVA-K4, </span><span style="font-family: Arial, sans-serif;
									font-style: italic;
									x-condition: ZVA_T;"><I>Frequency Conversion, 
 </I></span><span style="font-family: Arial, sans-serif; x-condition: ZVA_T;">independent 
 offset frequencies can be defined for the source and receiver frequencies; 
 see </span><span style="font-family: 'Courier New', monospace; x-condition: ZVA_T;"><a 
 href="SOURce_Ch.htm#CONVersion_ARBitrary_IFRequency"
	id=A45
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:FREQuency&lt;Pt&gt;:CONVersion:ARBitrary:IFRequency</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A45');
//--></script></span><span 
 style="font-family: Arial, sans-serif; x-condition: ZVA_T;"> and </span><span 
 style="font-family: 'Courier New', monospace; x-condition: ZVA_T;"><a 
 href="../SENSe/SENSe_FREQuency.htm#CONVersion_ARBitrary"
	id=A46
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">[SENSe&lt;Ch&gt;:]FREQuency:CONVersion:ARBitrary</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A46');
//--></script></span><span 
 style="font-family: Arial, sans-serif; x-condition: ZVA_T;">. </span></p>

<table x-use-null-cells>
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft>&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext>Channel number. If unspecified the numeric suffix is set 
 to 1.</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;Pt&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Test port number of the analyzer. This suffix is ignored 
 because the selected frequency applies to all source ports used in the 
 active channel. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;fixed_frequency&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Fixed stimulus and analyzer frequency. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Depending on the <a href="../SENSe/SENSe_FREQuency.htm#Model_list"
									id=a17
									style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">instrument 
 model</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('a17');
//--></script> 
 [Hz]. The increment (parameters UP or DOWN) is 0.1 kHz.</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>*RST value</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="color: #000000;">1 GHz</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Confirmed, command or query</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs4">
<p class=Example
	style="font-family: 'Courier New', monospace;"><code style="font-family: 'Courier New', monospace;">FUNC 
 &quot;XPOW:POW:A1&quot; </code></p>
<p class=Exampletext>Activate a power sweep and select the wave quantity 
 a1 <code><span style="font-family: Arial, sans-serif;">as measured parameter 
 for channel and trace no. 1</span></code>. </p>
<p class=Example
	style="font-family: 'Courier New', monospace;"><code style="font-family: 'Courier New', monospace;">SOUR:FREQ:CW 
 100MHz</code></p>
<p class=Exampletext>Set the CW frequency to 100 MHz.</p>
<p class=space>&nbsp;</td></tr>
</table>

<p class=space>&nbsp;</p>


<hr align="center" width="50%" class="whs2">


<h5 class="whs5"><img src="../../small_images/ZVR.gif" x-maintain-ratio="TRUE" width="47px" height="16px" border="0" class="img_whs6"><a name=CONVersion_ARBitrary_IFRequency></a>SOURce&lt;Ch&gt;:FREQuency&lt;Pt&gt;:CONVersion:ARBitrary:IFRequency 
 <br>
&lt;numerator&gt;, &lt;denominator&gt;, &lt;offset&gt;, CW | FIXed | SWEep</h5>

<p class="whs7">Defines the port-specific source frequency 
 for frequency-converting measurements. The source frequency is either 
 a range (for frequency sweeps) or a CW frequency (for power, time and 
 <span style="font-style: italic;"><I>CW Mode</I></span> sweeps). &nbsp;</p>

<table x-use-null-cells class="whs8">
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft
	style="x-condition: ZVA_T;">&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext
	style="x-condition: ZVA_T;">Channel number. </p>
<p class=space
	style="x-condition: ZVA_T;">&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft
	style="x-condition: ZVA_T;">&lt;Pt&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="x-condition: ZVA_T;">Test port number of the analyzer. Note 
 that the source frequencies at ports 1/2 and at ports 3/4 must be the 
 same. </p>
<p class=space
	style="x-condition: ZVA_T;">&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft
	style="x-condition: ZVA_T;">&lt;numerator&gt; <br>
&lt;denominator&gt; <br>
&lt;offset&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="x-condition: ZVA_T;">Parameters of the frequency formula. The 
 source frequency f<span style="vertical-align: Sub;">s</span> is calculated 
 according to<br>
f<span style="vertical-align: Sub;">s</span> = &lt;numerator&gt;/&lt;denominator&gt;*f<span 
 style="vertical-align: Sub;">b</span>. + &lt;offset&gt; <br>
where f<span style="vertical-align: Sub;">b</span> represents the sweep 
 range (for frequency sweeps, parameter SWEep). For power, time and <span 
 style="font-style: italic;"><I>CW Mode</I></span> sweeps (parameters CW or FIXed), 
 f<span style="vertical-align: Sub;">b</span> = 0. &nbsp;</p>
<p class=Note
	style="x-condition: ZVA_T;"><img src="../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs9"> The conversion formula for 
 f<span style="vertical-align: Sub;">s</span> is ZVR-compatible but differs 
 from manual control where the ratio &lt;numerator&gt;/&lt;denominator&gt; 
 also multiplies the &lt;offset&gt;. In manual control, the &lt;offset&gt; 
 is defined as a product of a ratio of two integers times a multiple of 
 1 Hz. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright
	style="x-condition: ZVA_T;">Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="x-condition: ZVA_T;">The converted frequency or frequency range 
 must be within the analyzer's frequency range, depending on the <a href="../SENSe/SENSe_FREQuency.htm#Model_list"
	id=a32
	style="position: relative; x-condition: ZVA_T;">instrument model</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a32');
//--></script> 
 [Hz]. In addition the following restrictions apply:<br>
&lt;numerator&gt; &#8211; 
 Values are rounded to positive or negative integer numbers; zero is not 
 allowed [1]<br>
&lt;denominator&gt; &#8211; 
 Values are rounded to positive integer numbers [1] <br>
&lt;offset&gt; &#8211; 
 Values are rounded to (positive or negative) multiples of 1 Hz [Hz]. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright
	style="x-condition: ZVA_T;">*RST value</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="x-condition: ZVA_T;">The default frequency/frequency range corresponds 
 to the sweep range or CW frequency of the analyzer, i.e. <br>
&lt;numerator&gt; = &lt;denominator&gt; = 1<br>
&lt;offset&gt; = 0 Hz</p>
<p class=space
	style="x-condition: ZVA_T;">&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft
	style="x-condition: ZVA_T;">Sweep type Parameters</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="x-condition: ZVA_T;">SWEep &#8211; 
 A frequency sweep is active, the command defines a frequency range. <br>
CW | FIXed &#8211; 
 A power, time or <span style="font-style: italic;"><I>CW Mode</I></span> sweeps 
 is active, the command defines a fixed frequency. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright
	style="x-condition: ZVA_T;">*RST value</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="x-condition: ZVA_T;">SWEep</p>
<p class=space
	style="x-condition: ZVA_T;">&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft
	style="x-condition: ZVA_T;">SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="x-condition: ZVA_T;">Device-specific, command or query</p>
<p class=space
	style="x-condition: ZVA_T;">&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft
	style="x-condition: ZVA_T;">Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs10">
<p class=Example
	style="x-condition: ZVA_T;">*RST; FREQ:STAR 1E+9; STOP 1.1E+9</p>
<p class=Exampletext
	style="x-condition: ZVA_T;">Reset the analyzer (activating a frequency 
 sweep) and set the sweep range between 1 GHz and 1.1 GHz. </p>
<p class=Example
	style="x-condition: ZVA_T;">SOUR:FREQ2:CONV:ARB:IFR &nbsp;2, 
 1, 1E+9, SWE</p>
<p class=Exampletext
	style="x-condition: ZVA_T;">Convert the source frequency at test port 
 no. 2 to the range between 3 GHz and 3.2 GHz. The frequency setting is 
 also valid for port 1. &nbsp;</p>
<p class=space
	style="x-condition: ZVA_T;">&nbsp;</td></tr>
</table>

<p class=space
	style="x-condition: ZVA_T;">&nbsp;</p>


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


<h5><a name=FREQuency_CONVersion_MIXer_FUNDamental></a>SOURce&lt;Ch&gt;:]FREQuency:CONVersion:MIXer:FUNDamental 
 RF | LO </h5>

<p>Selects the mixer input signal which is at the fundamental power (channel 
 power, to be defined by means of <span style="font-family: 'Courier New', monospace;"><a 
 HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_STARt"
	id=a35
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:STARt</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a35');
//--></script>, 
 <a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_STOP"
	id=A24
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;:STOP</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A24');
//--></script>, 
 </span><span style="font-family: 'Courier New', monospace;"><a HREF="SOURce_Ch__POWer__LEVel_.htm#POWer_LEVel"
	id=A27
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:POWer&lt;Pt&gt;[:LEVel][:IMMediate][:AMPlitude]</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A27');
//--></script></span>). 
 </p>

<table x-use-null-cells>
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft>&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext>Channel number. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Parameters</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>RF &#8211; 
 mixer input signal <br>
LO &#8211; 
 local oscillator signal </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>*RST value</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>RF </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Device-specific, command or query.</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs4">
<p class=Example><span style="font-family: Arial, sans-serif;">See</span> 
 <a href="SOURce_Ch.htm#FREQuency_CONVersion_MIXer_PFIXed"
	id=A28
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:FREQuency:CONVersion:MIXer:PFIXed</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A28');
//--></script> 
 </p>
<p class=space>&nbsp;</td></tr>
</table>

<p class=space>&nbsp;</p>


<hr align="center" width="50%" class="whs2">


<h5><a name=FREQuency_CONVersion_MIXer_PFIXed></a>SOURce&lt;Ch&gt;:FREQuency:CONVersion:MIXer:PFIXed 
 &lt;fixed_power&gt;</h5>

<p>Defines a fixed power, to be assigned either to the RF or to the LO 
 signal (the signal not addressed by <span style="font-family: 'Courier New', monospace;"><a 
 href="SOURce_Ch.htm#FREQuency_CONVersion_MIXer_FUNDamental"
	id=A26
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:]FREQuency:CONVersion:MIXer:FUDamental 
 RF | LO</a><script type="text/javascript"
										language=JavaScript1.2><!--
kadovInitEffects('A26');
//--></script></span>).</p>

<table x-use-null-cells>
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft>&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext>Channel number. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;fixed_power&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Fixed power. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>&#8211;40 
 dBm to +10 dBm. The exact range depends on the analyzer model or external 
 generator used; refer to the data sheet [dBm]. UP and DOWN increment/decrement 
 the source power in 0.1-dB steps. &nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>*RST value</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>&#8211;25 
 dBm </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Device-specific, command or query.</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs4">
<p class=Example>*RST; SOUR:FREQ:CONV:MIX:PFIX &#8211;10 
 </p>
<p class=Exampletext>Reset the analyzer and specify a fixed power of &#8211;10 dBm. </p>
<p class=Example
	style="font-family: 'Courier New', monospace;">SOUR:FREQ:CONV:MIX:FUND 
 LO</p>
<p class=Exampletext>Assign the fundamental frequency to the LO signal. 
 The fixed frequency is automatically assigned to the RF signal. &nbsp;</p>
<p class=space>&nbsp;</td></tr>
</table>

<p class=space>&nbsp;</p>


<hr align="center" width="50%" class="whs2">


<h5><a name=GROup></a>SOURce&lt;Ch&gt;:GROup&lt;group_no&gt; &nbsp;&lt;log_port1&gt;,&lt;log_port2&gt;</h5>

<p>Defines a group of measured ports numbered &lt;group_no&gt; containing 
 a continuous range of logical ports &lt;log_port1&gt; and &lt;log_port2&gt;. 
 &nbsp;</p>

<table x-use-null-cells>
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft>&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext>Channel number. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;group_no&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Port group number. If unspecified the analyzer automatically 
 selects an unused port group number (existing port groups are not overwritten). 
 </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Port groups must contain at least one logical port and 
 must not overlap, so the maximum number of port groups for an n-port analyzer is n. &nbsp;&nbsp;[&#8211;]</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;log_port1&gt;, &lt;log_port2&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="color: #000000;">First and last logical port number in the port 
 group. The port group contains all port with numbers between &lt;log_port1&gt; 
 and &lt;log_port2&gt;. <span style="color: #000000;"><font color=black >The command generates 
 an error message if only one parameter is transferred. Both parameters 
 must be omitted if the command is used as a query. </font></span></td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="color: #000000;">1 to n where n is the number of ports of the 
 analyzer. <span style="color: #000000;"><font color=black >&lt;log_port1&gt; can be smaller 
 than, equal to or larger than &lt;log_port2&gt;, however, a physical port 
 cannot be assigned to several port groups. [&#8211;] 
 </font></span></p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Device-specific, command or query</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs4">
<p class=Example
	style="font-family: 'Courier New', monospace;"><code style="font-family: monospace;">SOUR:GRO1 
 1,2; SOUR:GRO2 3,4 </code></p>
<p class=Exampletext><span>On a 4-port analyzer, arrange the logical ports 
 no. 1 and 2 in port group 1, the logical ports no 3 and 4 in port group 
 2</span>. </p>
<p class=Example
	style="font-family: 'Courier New', monospace;"><code style="font-family: 'Courier New', monospace;">SOUR:GRO? 
 </code></p>
<p class=Exampletext>Query the port group no. 1. The response is <span 
 style="font-style: italic;"><I>1,2.</I></span> </p>
<p class=Example><code style="font-family: monospace;">SOUR:GRO:CLE ALL; 
 SOUR:GRO1?</code></p>
<p class=Exampletext>Dissolve all port group and repeat the query. The 
 response is <span style="font-style: italic;"><I>1,4: </I></span><span>the default 
 port group no. 1 contains all ports.</span> </p>
<p class=space>&nbsp;</td></tr>
</table>


<hr align="center" width="50%" class="whs2">


<h5><a name=GROup_CLEar></a>SOURce&lt;Ch&gt;:GROup&lt;group_no&gt;:CLEar 
 [ALL]</h5>

<p>Dissolves a group of measured ports &lt;group_no&gt; or all port groups. 
 &nbsp;</p>

<table x-use-null-cells>
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft>&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext>Channel number. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;group_no&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Port group number. If unspecified the numeric suffix is 
 set to 1.</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Range according to the current port groups (<span style="font-family: 'Courier New', monospace;"><a 
 href="#GROup"
	id=a11
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:GROup&lt;group_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a11');
//--></script></span>). 
 If an undefined port group number is used, the analyzer generates an error 
 message. Exception: Parameter <span style="font-family: 'Courier New', monospace;">ALL</span>, 
 see below. &nbsp;[&#8211;]</p>
<p class=Note>Note: Port group no 1 is always present and can not be dissolved. 
 After a *RST or after <span style="font-family: 'Courier New', monospace;">SOURce&lt;Ch&gt;:GROup&lt;group_no&gt;:CLEar 
 ALL</span>, port group no. 1 contains all ports of the analyzer. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>ALL</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="color: #000000;">If <span style="font-family: 'Courier New', monospace;">ALL</span> 
 is specified, all port groups are dissolved (exception: port group 1; 
 see above); the &lt;group_no&gt; suffix is ignored. If <span style="font-family: 'Courier New', monospace;">ALL</span> 
 is omitted, only the specified port group is dissolved. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Device-specific, no query</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs4">
<p class=Example
	style="font-family: 'Courier New', monospace;"><span style="font-family: Arial, sans-serif;">See</span> 
 <a href="#GROup"
	id=a12
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:GROup&lt;group_no&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a12');
//--></script></p>
<p class=space>&nbsp;</td></tr>
</table>

<p class=space>&nbsp;</p>


<hr align="center" width="50%" class="whs2">


<h5><a name=LPORt></a>SOURce&lt;Ch&gt;:LPORt&lt;log_port&gt; &nbsp;&lt;phys_port1&gt;,&lt;phys_port2&gt;</h5>

<p>Defines a balanced port numbered &lt;log_port&gt;, combining two physical 
 ports &lt;phys_port1&gt; and &lt;phys_port2&gt;. </p>

<p class=Note><img src="../../small_images/note.jpg" x-maintain-ratio="TRUE" width="36px" height="37px" border="0" class="img_whs3"> A balanced port configuration generally introduces 
 a new set of <a HREF="../../System_Overview/Measurement_Parameters/Mixed_Mode_Parameters.htm"
				id=A21
				style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">mixed 
 mode</a><script type="text/javascript"
									language=JavaScript1.2><!--
kadovInitEffects('A21');
//--></script> 
 measured quantities. Therefore the traces must be redefined as a balanced 
 port is created. The easiest way to avoid any inconsistencies is to delete 
 all traces of the active channel before defining a balanced port. The 
 analyzer displays an error message if <span style="font-family: 'Courier New', monospace;">SOURce&lt;Ch&gt;:LPORt&lt;log_port&gt;</span> 
 is used while the channel <span style="font-family: 'Courier New', monospace;">&lt;Ch&gt;</span> 
 still contains a trace with an S-parameter as a measured quantity. </p>

<table x-use-null-cells>
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft>&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext>Channel number. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;log_port&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Logical port number used to number balanced or physical 
 ports. If unspecified the numeric suffix is set to 1.</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>One balanced port requires two physical ports, so the 
 maximum number of balanced ports for an n-port analyzer is n/2 (n even) 
 or (n &#8211; 
 1)/2 (n odd). If the command is used as a query, then &lt;log_port&gt; 
 can range up to n (no balanced ports, see example below). &nbsp;[&#8211;]</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;phys_port1&gt;, &lt;phys_port1&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="color: #000000;">Logical port number. The command has no effect 
 if only one parameter is transferred. Both parameters must be omitted 
 if the command is used as a query. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="color: #000000;">1 to n where n is the number of ports of the 
 analyzer. The port numbers must be different from each other. Moreover, 
 a physical port cannot be assigned to several physical ports. [&#8211;]</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Device-specific, command or query</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs4">
<p class=Example
	style="font-family: 'Courier New', monospace;"><code><span style="font-family: 'Courier New', monospace;">*RST; 
 CALC:PAR:DEL 'TRC1' </span></code></p>
<p class=Exampletext><code style="font-family: monospace;"><span style="font-family: Arial, sans-serif;">Reset 
 the analyzer and delete the (default) trace for channel no. 1.</span> 
 </code></p>
<p class=Example
	style="font-family: 'Courier New', monospace;"><code style="font-family: monospace;">SOUR:LPOR1 
 1,2; SOUR:LPOR2 3,4 </code></p>
<p class=Exampletext><span>Assuming that the analyzer provides 4 test ports, 
 combine the physical ports 1 and 2 to the logical port 1, the physical 
 ports 3 and 4 to the logical port 2</span>. </p>
<p class=Example
	style="font-family: 'Courier New', monospace;"><code style="font-family: 'Courier New', monospace;">SOUR:LPOR1? 
 </code></p>
<p class=Exampletext>Query the physical ports assigned to logical port 
 no. 1. The response is <span style="font-style: italic;"><I>1,2.</I></span> </p>
<p class=Example><code style="font-family: monospace;">SOUR:LPOR:CLE ALL; 
 :LPOR1?</code></p>
<p class=Exampletext>Dissolve all logical ports and repeat the query. The 
 response is <span style="font-style: italic;"><I>1: </I></span><span>the logical 
 port no. 1 is identical to the physical port no. 1</span><span style="font-style: italic;"><I>.</I></span> 
 </p>
<p class=space>&nbsp;</td></tr>
</table>

<p class=space>&nbsp;</p>


<hr align="center" width="50%" class="whs2">


<h5><a name=LPORt_CLEar></a>SOURce&lt;Ch&gt;:LPORt&lt;log_port&gt;:CLEar 
 [ALL]</h5>

<p>Dissolves a balanced port numbered &lt;log_port&gt; or all balanced 
 ports. &nbsp;</p>

<table x-use-null-cells>
<col>
<col>

<tr>
<td class=TableHeading>
<p class=Tableft>&lt;Ch&gt;</td>
<td class=TableText>
<p class=Tabtext>Channel number. </p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>&lt;log_port&gt;</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Logical port number used to number balanced ports. If 
 unspecified the numeric suffix is set to 1.</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tabright>Range [def. unit]</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Range according to the current port configuration (<span 
 style="font-family: 'Courier New', monospace;"><a href="SOURce_Ch.htm#LPORt"
													id=A9
													style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:LPORt&lt;log_port&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('A9');
//--></script></span>). 
 If an undefined balanced port number is used, the analyzer generates an 
 error message. Exception: Parameter <span style="font-family: 'Courier New', monospace;">ALL</span>, 
 see below. &nbsp;[&#8211;]</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>ALL</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext
	style="color: #000000;">If <span style="font-family: 'Courier New', monospace;">ALL</span> 
 is specified, all balanced ports are dissolved; the &lt;log_port&gt; suffix 
 is ignored. If <span style="font-family: 'Courier New', monospace;">ALL</span> 
 is omitted, only the specified balanced port is dissolved. </td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>SCPI, Command Types</td>
<td colspan=1
	rowspan=1>
<p class=Tabtext>Device-specific, no query</p>
<p class=space>&nbsp;</td></tr>

<tr>
<td colspan=1
	rowspan=1>
<p class=Tableft>Example:</td>
<td colspan="1" rowspan="1" bgcolor="#CBCBCB" class="whs4">
<p class=Example
	style="font-family: 'Courier New', monospace;"><span style="font-family: Arial, sans-serif;">See</span> 
 <a href="SOURce_Ch.htm#LPORt"
	id=a10
	style="/*begin!kadov{{*/ position: relative; /*}}end!kadov*/ ">SOURce&lt;Ch&gt;:LPORt&lt;log_port&gt;</a><script 
 type="text/javascript"
	language=JavaScript1.2><!--
kadovInitEffects('a10');
//--></script></p>
<p class=space>&nbsp;</td></tr>
</table>

<p class=space>&nbsp;</p>


<hr align="center" width="50%" class="whs2">


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