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Table 2 Numerical values of  [dB],  [dB],  [dB]. Square root RC filter versus square root Nyquist -filter. The group delay parameter of the filters is fixed and the oversampling factor varies.

From: Nyquist Filters with Alternative Balance between Time- and Frequency-Domain Parameters

Root Raised Cosine Filter/Root Nyquist -Filter;
0.2 0.25 0.3 0.35 0.4 0.45 0.5
  0.027 0.034 0.040 0.047 0.054 0.061 0.068
  0.227 0.284 0.340 0.397 0.454 0.511 0.568
4 [dB] 4.6 10.8 8.4 8.3 8.6 7.4 6.8
  [dB] 4.3 6.5 5.8 6.4 4.1 7.1 10.9
  [dB] −0.7 −0.9 −1.2 −1.5 −1.9 −2.3 −2.8
5 [dB] 4.2 10.8 8.5 8.2 8.6 7.5 6.8
  [dB] 3.9 6.8 4.6 6.6 4.3 5.9 11.3
  [dB] −0.7 −0.9 −1.2 −1.5 −1.9 −2.3 −2.7
6 [dB] 4.1 10.8 8.6 8.2 8.6 7.6 6.8
  [dB] 3.7 7.0 3.7 6.7 4.4 5.1 11.5
  [dB] −0.7 −0.9 −1.2 −1.5 −1.9 −2.3 −2.7