AnsweredAssumed Answered

PNA setup issue.

Question asked by samx on Oct 29, 2014
Latest reply on Nov 2, 2014 by Dr_joel
Hi, i have one program to setup my PNA like below,

00001 > DISP:WIND1:STAT ON
00002 > *CLS
00003 > *OPC?
00004 < +1$
00005 > CALC1:PAR:DEF:EXT 'ch1_R1_1_1', 'R1,1'
00006 > *CLS
00007 > *OPC?
00008 < +1$
00009 > SENS1:SWE:MODE HOLD
00010 > *CLS
00011 > *OPC?
00012 < +1$
00013 > CALC1:PAR:CAT?
00014 < "ch1_R1_1_1,R1,1"$
00015 > DISP:WIND1:CAT?
00016 < "EMPTY"$
00017 > DISP:WIND1:TRAC1:FEED 'ch1_R1_1_1'
00018 > *CLS
00019 > *OPC?
00020 < +1$
00021 > CALC1:PAR:SEL 'ch1_R1_1_1'
00022 > *CLS
00023 > *OPC?
00024 < +1$
00025 > CALC1:PAR:MNUM?
00026 < +1$
00027 > DISP:WIND1:TRAC1:TITL:DATA "LB_Pwr "
00028 > *CLS
00029 > *OPC?
00030 < +1$
00031 > DISP:WIND1:TRAC1:TITL:STAT ON
00032 > *CLS
00033 > *OPC?
00034 < +1$
00035 > CALC1:FORM MLOG
00036 > *CLS
00037 > *OPC?
00038 < +1$
00039 > SENS1:SWE:POIN 3
00040 > *CLS
00041 > *OPC?
00042 < +1$
00043 > CALC1:PAR:DEF:EXT 'ch1_AI1_1_2', 'AI1,1'
00044 > *CLS
00045 > *OPC?
00046 < +1$
00047 > SENS1:SWE:MODE HOLD
00048 > *CLS
00049 > *OPC?
00050 < +1$
00051 > CALC1:PAR:CAT?
00052 < "ch1_R1_1_1,LB_Pwr ,ch1_AI1_1_2,AI1,1"$
00053 > DISP:WIND1:CAT?
00054 < "1"$
00055 > DISP:WIND1:TRAC2:FEED 'ch1_AI1_1_2'
00056 > *CLS
00057 > *OPC?
00058 < +1$
00059 > CALC1:PAR:SEL 'ch1_AI1_1_2'
00060 > *CLS
00061 > *OPC?
00062 < +1$
00063 > CALC1:PAR:MNUM?
00064 < +2$
00065 > DISP:WIND1:TRAC2:TITL:DATA " LB_Current "
00066 > *CLS
00067 > *OPC?
00068 < +1$
00069 > DISP:WIND1:TRAC2:TITL:STAT ON
00070 > *CLS
00071 > *OPC?
00072 < +1$
00073 > CALC1:FORM  REAL
00074 > *CLS
00075 > *OPC?
00076 < +1$
00077 > CALC1:PAR:DEF:EXT 'ch1_EQ1_3', 'S11'
00078 > *CLS
00079 > *OPC?
00080 < +1$
00081 > SENS1:SWE:MODE HOLD
00082 > *CLS
00083 > *OPC?
00084 < +1$
00085 > CALC1:PAR:CAT?
00086 < "ch1_R1_1_1,LB_Pwr ,ch1_AI1_1_2, LB_Current ,ch1_EQ1_3,S11"$
00087 > DISP:WIND1:CAT?
00088 < "1,2"$
00089 > DISP:WIND1:TRAC3:FEED 'ch1_EQ1_3'
00090 > *CLS
00091 > *OPC?
00092 < +1$
00093 > CALC1:PAR:SEL 'ch1_EQ1_3'
00094 > *CLS
00095 > *OPC?
00096 < +1$
00097 > CALC1:PAR:MNUM?
00098 < +3$
00099 > DISP:WIND1:TRAC3:TITL:DATA " OMI"
00100 > *CLS
00101 > *OPC?
00102 < +1$
00103 > DISP:WIND1:TRAC3:TITL:STAT ON
00104 > *CLS
00105 > *OPC?
00106 < +1$
00107 > CALC1:FORM  REAL
00108 > *CLS
00109 > *OPC?
00110 < +1$
00111 > CALC1:EQU:TEXT "OMI=100*mag(2*sqrt(40)*$LB_Pwr$)/(10*d_mean($LB_Current#$))"<
00112 > *CLS
00113 > *OPC?
00114 < +1$
00115 > SYST:ERR?
00116 < +0,"No error"$
00117 > CALC1:PAR:MNUM 1
00118 > *CLS
00119 > *OPC?
00120 < +1$
00121 > CALC1:EQU:TEXT?
00122 < ""$
00123 > CALC1:PAR:MNUM 2
00124 > *CLS
00125 > *OPC?
00126 < +1$
00127 > CALC1:EQU:TEXT?
00128 < ""$
00129 > CALC1:PAR:MNUM 3
00130 > *CLS
00131 > *OPC?
00132 < +1$
00133 > CALC1:EQU:TEXT?
00134 < "OMI=100*mag(2*sqrt(40)*$LB_Pwr$)/(10*d_mean($LB_Current#$))"$
00135 > CALC1:EQU:TEXT "OMI=100*mag(2*sqrt(40)*Tr1)/(10*d_mean(2))"
00136 > *CLS
00137 > *OPC?
00138 < +1$
00139 > CALC1:EQU:VAL?
00140 < 0$
00141 > SYST:ERR?
00142 < +0,"No error"$
00143 > DISP:WIND1:TITL:DATA "Lab Buddy OMI: Ch_1"
00144 > *CLS
00145 > *OPC?
00146 < +1$
00147 > DISP:WIND1:TITL:STAT ON
00148 > *CLS
00149 > *OPC?
00150 < +1$
00151 > SENS1:SWE:TYPE LINEAR
00152 > *CLS
00153 > *OPC?
00154 < +1$
00155 > SENS1:BWID 1000
00156 > *CLS
00157 > *OPC?
00158 < +1$
00159 > SENS1:FREQ:STAR 50000000
00160 > *CLS
00161 > *OPC?
00162 < +1$
00163 > SENS1:FREQ:STOP 871250000
00164 > *CLS
00165 > *OPC?
00166 < +1$
00167 > SENS1:SWE:POIN 401
00168 > *CLS
00169 > *OPC?
00170 < +1$
00171 > SYST:ERR?
00172 < +0,"No error"$
00173 > SENS1:PATH:CONF:SEL "ONT_Path"
00174 > *CLS
00175 > *OPC?
00176 < +1$
00177 > *CLS; *WAI; *ESE 1
00178 > SENS1:SWE:MODE SING
00179 > *OPC
00180 > *STB?
00181 < +0$
00182 > *STB?
00183 < +0$
00184 > *STB?
00185 < +0$
00186 > *STB?
00187 < +0$
00188 > *STB?
00189 < +32$

Can someone tell me what is the value the trace LB_current show? at which. I attached my path configuration and port connection photo.

I met problem with one of my PNAs, it was just repaired and back but can not work in my test station, i root cause to this setup procedure, after the command "SENS1:SWE:MODE SING" sent, the LB_current trace value of this PNA show about 720mU, for other good and work PNA, it showed about 80mU. what would cause this difference?

i debug one month but can not find the root cause.

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