La description

Key facts
Maximum Attenuation > 60 dB, 70 dB (typ.)

Brief description The R&S®SMA100B together with the R&S®SMAB-K721 scan modulation option is the perfect choice for producing amplitude-modulated signals with a modulation depth larger than 70 dB. This allows very accurate simulation of peaks and nulls in complex antenna patterns.
Specifications
R&S®SMAB-K721
Modulation source   Internal, external, internal + external
External coupling   DC
Maximum Attenuation   > 60 dB, 70 dB (typ.)
Setting range for internal depth   0 dB to 100 dB
Setting range for external input sensitivity   0 to 100 dB/V
Resolution of setting   0.01 dB
Attenuation error level setting characteristic: Auto, temperature range from +18 °C to +33 °C  
  0 dB < m ? 10 dB < 0.25 dB
  10 dB < m ? 20 dB < 1 dB
  20 dB < m ? 40 dB < 2 dB (typ.)
  40 dB < m ? 50 dB < 3 dB (typ.)
  50 dB < m ? 60 dB < 4 dB (typ.)
Rise/fall time Transition time 10 % to 90 % (log) for RF amplitude step of 60 dB < 10 µs (meas.)
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