RLC Electronics' Jitter Filters are designed for use with jitter analysis systems. Modern digital networks may generate or transfer jitter. Excessive jitter can cause high bit error rates. Jitter filters are used to suppress the harmonic content of the reference clock and recovered clock signals. Jitter Filters also suppress any sub-harmonic or other spurious signals that may be present. The 30 dB stopband extends to D.C. and to above the third harmonic.