Q7.In a GSM system, 8 channels can co-exist in 200 kHz bandwidth using TDMA.
A GSM based cellular operator is allocated 5 MHz bandwidth. Assuming a
frequency reuse factor of 1/5, i.e. a five-cell repeat pattern, the maximum number
of simultaneous channels that can exist in one cell is
Q9.An air-filled rectangular waveguide has inner dimensions of 3 cm × 2 cm.
The wave impedance of the TE2 mode of propagation in the waveguide at a
frequency of 30 GHz is (free space impedance η0 = 377Ω)