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AD9371 fileter wizard setup file (Sending channel generates too much harmonics)

  • How to set parameters to remove unnecessary harmonics;

    My parameter Settings are as follows:

<profile AD9371 version=0 name=Rx 30, IQrate 61.440>
 <clocks>
  <deviceClock_kHz=122880>
  <clkPllVcoFreq_kHz=9830400>
  <clkPllVcoDiv=2>
  <clkPllHsDiv=4>
 </clocks>

 <rx>
  <adcDiv=1>
  <rxFirDecimation=2>
  <rxDec5Decimation=5>
  <enHighRejDec5=1>
  <rhb1Decimation=2>
  <iqRate_kHz=61440>
  <rfBandwidth_Hz=30000000>
  <rxBbf3dBCorner_kHz=30000>

  <filter FIR gain=-6 num=72>
  1
  22
  9
  -9
  -42
  -40
  5
  79
  101
  26
  -120
  -204
  -110
  143
  350
  278
  -107
  -526
  -562
  -44
  693
  985
  393
  -783
  -1568
  -1058
  677
  2347
  2282
  -122
  -3471
  -4895
  -1931
  5487
  14446
  20542
  20542
  14446
  5487
  -1931
  -4895
  -3471
  -122
  2282
  2347
  677
  -1058
  -1568
  -783
  393
  985
  693
  -44
  -562
  -526
  -107
  278
  350
  143
  -110
  -204
  -120
  26
  101
  79
  5
  -40
  -42
  -9
  9
  22
  1
  </filter>

  <adc-profile num=16>
  599
  357
  201
  98
  1280
  112
  1505
  53
  1331
  21
  820
  40
  48
  40
  23
  191
  </adc-profile>
 </rx>

 <obs>
  <adcDiv=1>
  <rxFirDecimation=2>
  <rxDec5Decimation=5>
  <enHighRejDec5=1>
  <rhb1Decimation=1>
  <iqRate_kHz=122880>
  <rfBandwidth_Hz=100000000>
  <rxBbf3dBCorner_kHz=50000>

  <filter FIR gain=0 num=48>
  0
  -21
  18
  39
  -36
  -87
  81
  157
  -149
  -269
  260
  432
  -423
  -672
  668
  1025
  -1036
  -1570
  1650
  2547
  -2971
  -5686
  4361
  18361
  18361
  4361
  -5686
  -2971
  2547
  1650
  -1570
  -1036
  1025
  668
  -672
  -423
  432
  260
  -269
  -149
  157
  81
  -87
  -36
  39
  18
  -21
  0
  </filter>

  <adc-profile num=16>
  534
  386
  201
  98
  1280
  491
  1591
  279
  1306
  104
  792
  28
  48
  39
  23
  187
  </adc-profile>

  <lpbk-adc-profile num=16>
  599
  357
  201
  98
  1280
  112
  1505
  53
  1331
  21
  820
  40
  48
  40
  23
  191
  </lpbk-adc-profile>
 </obs>

 <tx>
  <dacDiv=2.5>
  <txFirInterpolation=1>
  <thb1Interpolation=2>
  <thb2Interpolation=2>
  <txInputHbInterpolation=1>
  <iqRate_kHz=122880>
  <primarySigBandwidth_Hz=40000000>
  <rfBandwidth_Hz=100000000>
  <txDac3dBCorner_kHz=100000>
  <txBbf3dBCorner_kHz=50000>

  <filter FIR gain=6 num=16>
  7
  -244
  182
  -149
  -81
  909
  -2806
  20438
  -2806
  909
  -81
  -149
  182
  -244
  7
  0
  </filter>
 </tx>
</profile>
The resulting harmonics are as follows