RadioQTH Lookup

General Exam

Question: G8B11

Question: What combination of a mixer's Local Oscillator (LO) and RF input frequencies is found in the output?

1. The ratio
2. The average
3. The sum and difference
4. The arithmetic product

Correct Answer: C

For more questions that might appear on an Amateur Radio license examination, click on the "practice exams" link on the left panel.