- #1
C.L.low
- 3
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Hi,
I've encountered some problem during solved the band pass filter and twin-T notch filter. I don't really understand what the question exactly meant...hope can get some idea in here..thx
1.) A signal conditioning system uses a frequency variation from 6 kHz to 60 kHz to carry measurement information. There is considerable noise at 120 Hz and at 1MHz. Design a band pass filter to reduce the noise by 90%. What is the effect on the desired pass band frequencies?
2.) A frequency of 400 Hz prevails aboard an aircraft. Design a twin-T notch filter to reduce the 400 Hz signal. What the effect would this have on voice signals at 10 to 300 Hz? At what higher frequency is the output down by 3 dB?
I've encountered some problem during solved the band pass filter and twin-T notch filter. I don't really understand what the question exactly meant...hope can get some idea in here..thx
1.) A signal conditioning system uses a frequency variation from 6 kHz to 60 kHz to carry measurement information. There is considerable noise at 120 Hz and at 1MHz. Design a band pass filter to reduce the noise by 90%. What is the effect on the desired pass band frequencies?
2.) A frequency of 400 Hz prevails aboard an aircraft. Design a twin-T notch filter to reduce the 400 Hz signal. What the effect would this have on voice signals at 10 to 300 Hz? At what higher frequency is the output down by 3 dB?