| PA0RDT Audio Filter |
| Original design by PA0LQ |
| Click on schematic for full size |
| Filter response click on picture for full size |
| Audio Clip 250hz filter verses 6hz PA0RDT Filter Thanks Steve!!! |
| DK5NA's audio filter picture |
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| PA0RDT Audio Filter |
| Original design by PA0LQ |
| Click on schematic for full size |
| Filter response click on picture for full size |
| Audio Clip 250hz filter verses 6hz PA0RDT Filter Thanks Steve!!! |
| DK5NA's audio filter picture |
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