Related Questions

A spectrum of 30 MHz is allocated to a cellular system which uses two 25 KHz simplex channels to provide full duplex voice channels. What is the number of channels available per cell for 4 cell reuse factor?
P, Q and R are channels which discharge solutions A,B and C respectively in a tank. When the tank is empty and all the three channels are opened what is the proportion of the solution C in the tank after 3 minutes, if the channels P, Q and R can fill the tank from empty to full in 30 minutes and 20 minutes and 10 minutes respectively when they are opened one at a time.
There are 4 breeds of dogs available at a pet store. If the ratio of those dogs available is 3 : 7 : 1 : 23, find the total number of dogs available. It is known that the minimum number of dogs of any breed available is 19.
Which of the following combinations are not correctly matched?
1. Writ of Habeas Corpus: available against private individuals as well
2. Writ of Quo Warranto: available against subordinate courts only
3. Writ of Certiorari: available against state only
4. Writ of Prohibition: available against autonomous bodies only
Select the correct answer:
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?
Five channels, each with a 100-kHz bandwidth, are to be multiplexed together. What is the minimum bandwidth of the link if there is a need for a guard band of 10 kHz between the channels to prevent interference?
Of the total channels present in the cellular system, what is the percentage of voice and control channels?
AMPS and ETACS use same physical channels for transmission of voice and control channels.
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 $$\frac{1}{5},$$  i.e. a five-cell repeat pattern, the maximum number of simultaneous channels that can exist in one cell is
Assertion (A): Chester Barnard identified communication channels with channels of authority.
Reason (R): Chester Barnard thinks that a communication that cannot be understood can have no authority.