hat
Pwodiksyon an RF modulation parèt nan peny 11 epi li se manje yo ak yon filtè LC band pasif. travay li se yo retire nenpòt Harmony ki te pwodwi pa batman a ak nan pwodiksyon an RF osilator. Fondamantalman, filtre la pase frekans nan fanfa a 88-108MHz men woulo koupe frekans siyal pi wo a ak anba a sa a.
eng
The modulated RF output appears at pin 11 and is fed to a passive LC bandpass filter. Its job is to remove any harmonics produced by the modulation and in the RF oscillator output. Basically, the filter passes frequencies in the 88-108MHz band but rolls off signal frequencies above and below this.