Across
- 2. Wave type that can pass through walls easily
- 5. Orbit close to Earth with little delay
- 8. Advantage of digital signals over analogue
- 9. Signal that travels in 0s and 1s
Down
- 1. Device that cleans and boosts signals in transmission
- 3. Process of converting sound into electrical/digital signals
- 4. Problem that affects analogue signals over distance
- 6. Medium used to transmit light signals in communication
- 7. Satellite communication delay caused by long distance