A. Directions: Write letter A if it is an advantage and D if it is a disadvantage of infrared radiation 1. Transmitters and receivers should be 5. Simple circuit. directly aligned to connect and 6. Distance sensitive communicate 7. Higher security than radio waves 2. Low power requirements that make it 8. Weather sensitive ideal for laptops. 9. Can also be affected by sunlight. 3. Can be blocked by common materials 10. Portable 4. Low circuit costs