Re: cw filters
Jerry Gaffke
The MAX7400 is a low pass filter, however if the uBitx crystal filter is doing
toggle quoted messageShow quoted text
its job there should already be a sharp lower cutoff frequency of around 300 Hz. So the total system is effectively a good sharp bandpass filter. That lower cutoff frequency can be adjusted by moving the BFO. Jerry, KE7ER
On Fri, Oct 18, 2019 at 03:58 PM, Jerry Gaffke wrote: The MAX7400 switched capacitor audio low pass filter is an interesting part.
|
|