In line at the corner deli, weaving through traffic, right next to you at a movie theater ... cell phones are everywhere. But are they really that different from walkie-talkies?
Question 1 of 10
A cell phone is basically a sophisticated:
Question 2 of 10
The cellular phone gets is name from:
Question 3 of 10
Unlike CB radios, cell phones use two frequencies, one for talking and the other for listening. This is:
Question 4 of 10
The range served by each cell phone base station is about:
Question 5 of 10
How do cell phones let you keep talking as you move in and out of different cells?
Question 6 of 10
Your cell phone knows when you're roaming because:
Question 7 of 10
How do digital phones let more people within a cell talk at once?
Question 8 of 10
Cell phone cloning involves:
Question 9 of 10
Cell phones use lower-power radio signals because:
Question 10 of 10