Amateur Extra › E7 Practical Circuits › E7C09
E7C09
What is a crystal lattice filter?
Pick an answer to check it.
Answer: D. A filter for low-level signals made using quartz crystals
A crystal lattice filter uses quartz crystals to make a very sharp, high-Q filter for low-level signals, such as in a receiver IF. The name refers to the circuit arrangement, not crystal shape.
Tip: Crystal lattice: quartz for sharp IF filtering.