Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the function of an RF mixer?
💡 Hint: Think about what happens when you combine sound waves.
Question 2
Easy
Define up-conversion.
💡 Hint: Consider communication systems that send signals over long distances.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What are the key outputs of an RF mixer?
- Input Frequencies
- Sum and Difference Frequencies
- Power Levels
💡 Hint: Think about how mixing works in sound or light waves.
Question 2
True or False: Passive mixers require an external power supply to function.
- True
- False
💡 Hint: Consider their component type.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A new RF mixer shows a conversion gain of 10 dB when the RF input is -40 dBm and the output is +20 dBm. Calculate the output power based on the formula.
💡 Hint: Use the conversion gain formula correctly.
Question 2
An active mixer has an IP3 value of +15 dBm and a conversion gain of 6 dB. A test measures the output power for one of the desired signals at -5 dBm. Determine the output third-order intermodulation product (PIM3).
💡 Hint: Remember the relation between output IP3 and intermodulation power.
Challenge and get performance evaluation