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The number and characteristics of roofing filter are determined by modulation of the subscriber signal.

The number and characteristics of roofing filter are determined by modulation of the subscriber signal. Correct Answer True

The modulation of the subscriber signal and bandwidth of the passband interference determine number and characteristics of roofing filter. The use of roofing filter establishes a noise floor and prevents dropped calls.

Related Questions

Consider the following statements regarding modulation : 1. The communication systems, where a weak signal is transmitted by the use of a modulation is essential in carrier signal. 2. When the frequency of the high frequency signal is varied in accordance with the intensity of the low-frequency weak signal, the modulation is said to be frequency modulation. 3. The process of recovering original baseband signal from the modulated signal is called phase modulation. Which of the above statements are correct ? 
Consider the following types of modulation: 1. Amplitude modulation 2. Frequency modulation 3. Phase modulation 4. Pulse modulation Which of the above modulation are used for telecasting TV programs?
Under Section 37 of the Information Technology Act, 2000, the certifying authority can suspend the digital signature certificate if
(1) The subscriber is found guilty of malpractise
(2) The subscriber is involved in cyber terrorism
(3) The subscriber requests for the same
(4) In public interest
A rotary drum filter with 30% submergence is used to filter concentrated aqueous slurry of calcium carbonate containing 15lb of solids per cubic foot of water. The pressure–drop is 2011Hg. If the filter cake contains 50% mixture (wet basis), calculate the filter area required to filter 10 gal/min of slurry. The filter cycle time is 5 min. The specific cake resistance depends on the pressure–drop as: α (ft/lb) = α (Δp)0.26, where α = 2.90×1010 Viscosity of the filtrate = 6.72×10-4 lb/ft-s. Density of calcium carbonate = 168.8 lb/ft3. Neglect filter medium resistance.
There are two sets given below in which Set I offers types of learner's characteristics and Set II gives their description. Match the two sets:   Set I (Learner’s   Characteristics)    Set II (Description) a. Academic Characteristics i. Learner encodes and decodes relevant messages correctly b. Social Characteristics ii. Learner selects different themes in his/her course when needed c. Emotional Characteristics iii. Learner works as a team member of the peers d. Cognitive Characteristics iv. Learner starts respecting the individual differences evident in likes and dislikes of members of his class Choose the correct answer from the following options:
Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is very high, the filter approaches to which of the following filter(s)?
Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is of lower order, the filter approaches to which of the following filter(s)?
The corporate and retail sector subscriber base under the National Pension System (NPS) has crossed over 30 lakh, and the corpus under these is about to reach a landmark Rs. 1 lakh crore mark. NPS subscriber base data has how many categories?
If the digital signature of any subscriber is alleged to have been affixed to an electronic record the fact that such digital signature is the digital signature of the subscriber must be proved, except in the case of a
If the digital signature of any subscriber is alleged to have been affixed to an electronic record, the fact that such digital signature is the digital signature of the subscriber must be proved, except in the case of a: