"The insertion loss across the band is low and the harmonics are
suppressed but not as much as the FCC regulations (Part
97.307 says ¡°(d) For transmitters installed after January 1,
2003, the mean power of any spurious emission from a
station transmitter or external RF power amplifier transmitting
on a frequency below 30 MHz must be at least 43 dB
below the mean power of the fundamental emission.¡±
... but aren't the harmonics from the Si5351a already
>10dB down on the fundamental, so
the over all spurious
emissions
after the 40dB suppression of the LPF are already much greater than the 43dB required by your USA regulations?
