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froeca / Software-Defined-Radio

A cheap PC-based, software-defined radio receiver built with Konrad McClure. Made in fulfillment with ENGR 397 class requirements.
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Incorrect bandpass filter values for v2b. #2

Closed froeca closed 4 years ago

froeca commented 4 years ago

It was noticed that the component values are incorrect for the band-pass filter on schematic v2b. Below is the ideal values that we designed the filter for:

BPF_ideal

Below is the filter design for v2b. As you notice the values of our design are quite different than what we had intended.

BPF_design_v2b

The difference between the expected and actual design is shown below:

BPF_error

froeca commented 4 years ago

This has fixed in the schematics through the release of v3a. Below is the updated bandpass filter design.

BPF_design_v3a

The components values have been selected to insure that the parts can be obtained off Digikey. See the parts list. is a combination of errors that we found through testing of v2b, which we built for our electronics project. See the project files for the updated schematic.