Elenco PK101 w/ Computer Interface Manual do Utilizador descarregar pdf (Página 16)

Now change to FFT mode to look at the frequency spectrum as the sound fades away. Try the settings

shown here.

The spectrum at left is for just

after pressing the switch. The

spectrum below uses the same

settings and shows the spectrum

just before the sound stops. The

frequencies and amplitude slowly

get lower as the sound fades away.

-16-

+9V

33kΩ

473

µµ

470Ω

Project PC4

OBJECTIVE: To look at the output of a space gun circuit.

Space Gun PC

SPEAKER

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Elenco PK101 w/ Computer Interface Manual do Utilizador Página 16