Bissoy.com
Doctors Medicines MCQs Q&A

Ten signals, each requiring 3000 Hz, are multiplexed onto a single channel using FDM. How much minimum bandwidth is required for the multiplexed channel? Assume that the guard bands are 300 Hz wide. 

Ten signals, each requiring 3000 Hz, are multiplexed onto a single channel using FDM. How much minimum bandwidth is required for the multiplexed channel? Assume that the guard bands are 300 Hz wide.  Correct Answer 32,700

Data:

Ten signals with each having 3000 Hz frequency.

Multiplexed onto a single channel. 

Explanation

If there are n signals multiplexed onto a single channel. Then the number of guard bands i.e. gap between each signal required = n -1

Here, guard bands required = 10 - 1 = 9 (each 300 Hz wide).

Minimum bandwidth required for the multiplexed channel = 3000 × 10 + 300 × 9 

= 30000 + 2700

= 32700 Hz

Related Questions

A computer has 1000K of main memory. The jobs arrive and finish in the following sequence. Job 1 requiring 200 K arrives Job 2 requiring 350 K arrives Job 3 requiring 300 K arrives Job 1 finishes Job 4 requiring 120 K arrives Job 5 requiring 150 K arrives Job 6 requiring 80 K  arrives Among best fit and first fit, which performs better for this sequence?
An art gallery engages a security guard to ensure that the items displayed are protected. The diagram below represents the plan of the gallery where the boundary walls are opaque. The location the security guard posted is identified such that all the inner space (shaded region in the plan) of the gallery is within the line of sight of the security guard. If the security guard does not move around the posted location and has a 360° view, which one of the following correctly represents the set of ALL possible locations among the locations P, Q, R and S, where the security guard can be posted to watch over the entire inner space of the gallery.
Five channels each with 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?
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?
Four signals each band limited to 5 kHz are sampled at twice the Nyquist rate. The resulting PAM samples are transmitted over a single channel after time division multiplexing. The theoretical minimum transmissions bandwidth of the channel should be equal to
Refer the below data table and answer the following Question.   2011 2012 2013 2014 2015 Company A 2000 2000 5000 2000 1000 Company B 2000 3000 1000 5000 2000 Company C 3000 2000 5000 3000 3000   For which of the following pairs of years the total exports from the three Companies together are equal? (Note: Figures given are in lakh rupees)          
Conditions of contracts for sale frequently impose restrictions on the buyer's right to make requisitions as to title. These fall under:
(1) Requiring requisition to be made in a specified time.
(2) Restricting the period for which title is to be shown.
(3) Requiring the existence of a fact to be assumed.
(4) Requiring the buyer to accept title as it is.
A government official said, “Currently, the traffic signals installed along the roads have a fixed signal timer but with the Japanese technology, signals will automatically change according to the number of vehicles along the road.” Which of the following could be the reason for the statement? I: The installation of smart signals will reduce the waiting time at signals and junctions. II: The installation of smart signals will solve the traffic woes in the city. III: The technology will be an integrated traffic management center that will ease congestion in the city.
Three analog signals, having bandwidths 1200 Hz, 600 Hz and 600 Hz, are sampled at their respective Nyquist rates, encoded with 12-bit words, and time division multiplexed. The bit rate for the multiplexed signal is
A frequency division multiplexing system is used to multiplex 24 independent voice signals. Single sideband modulation is used for the transmission. Each voice signal is allotted a bandwidth of 4 kHz. What is the overall transmission bandwidth of the channel ?