Question 5
- Explain the term band as used in GSM.
- (i) List two types of GSM phone bands
(ii) state the frequency of operation for each band listed in 5(b)(i)
Most of the candidates that answered this question performed poorly.
Observation
The expected answers are:
(a) Band is the range of frequencies a GSM phone is designed to operate in
(b) Types of GSM phone bands
- Single band
- Dual band
- Triband
- Quadband
(c) GSM bands frequencies of operation
- Single band: 900MHz or 1900MHz (1.9GHz)
- Dual band: 900MHz/1800MHz (1.8GHz)
- Triband: 900MHz/1800MHz/1900MHz
- Quadband: 850MHz/900MHz/1800MHz/1900MHz