Amateur Extra › E4 Amateur Practices › E4C12
E4C12
How does a narrow-band roofing filter affect receiver performance?
Pick an answer to check it.
Answer: C. It improves blocking dynamic range by attenuating strong signals near the receive frequency
A narrow roofing filter early in the receiver keeps strong nearby signals out of later stages. This improves blocking dynamic range.
Tip: Roofing filter blocks strong neighbors early.