1. _______ is a first-generation cellular phone system.
2. __________ is a second-generation cellular phone system.
3. ____________ is a digital version of AMPS.
4. ___________ is a second-generation cellular phone system used in Europe.
5. ________ is a second-generation cellular phone system based on CDMA and DSSS.
6. The __________ cellular phone system will provide universal personal communication.
7. In a ______ handoff, a mobile station only communicates with one base station.
8. In a ______ handoff, a mobile station can communicate with two base stations at the same time.
9. _______ is an analog cellular phone system using FDMA.
10. AMPS operates in the ISM _____ band.
11. In AMPS, each band is divided into ______ channels.
12. AMPS has a frequency reuse factor of _______.
13. AMPS uses ______ to divide each 25-MHz band into channels.
14. D-AMPS uses ______ to divide each 25-MHz band into channels.
15. GSM allows a reuse factor of _______.
16. GSM is a digital cellular phone system using ________.
17. IS-95 is based on ____________.
18. IS-95 uses the ISM _______band.
19. IS-95 uses the _______ satellite system for synchronization.
20. In an IS-95 system, the frequency-reuse factor is normally _____.
21. In the third generation of cellular phones, _______ uses W-CDMA.
22. In the third generation of cellular phones, ______ uses a combination of W-CDMA and TDMA.
23. In the third generation of cellular phones, _______ uses TDMA.
24. The period of a satellite, the time required for a satellite to make a complete trip around the Earth, is determined by _________ law.
25. The signal from a satellite is normally aimed at a specific area called the _________.
26. There is (are) _____ orbit(s) for a GEO satellite.
27. MEO satellites are located at altitudes between km.
28. LEO satellites are normally below an altitude of ________ km.
29. ______ is based on a principle called trilateration.