Question

A TDMA system uses 25 MHz for the forward link, which is broken into radio channels of 200 kHz. If 8 speech channels are supported on a single radio channel, how many simultaneous users can be accommodated?

• A. 25
• B. 200
• C. 1600
• D. 1000

Hint:

When working with TDMA systems, divide the total available bandwidth by the bandwidth per channel to find the number of channels, then multiply by the number of users per channel.

Answer 1

The Correct Option is D

The total bandwidth is 25 MHz, and each radio channel is 200 kHz. The number of channels available is given by: \[ \frac{25 \text{ MHz}}{200 \text{ kHz}} = 125 \text{ channels} \] If each channel can accommodate 8 speech channels, the total number of users supported is: \[ 125 \times 8 = 1000 \text{ users} \]