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What is the minimum bandwidth required for an FSK signaling 3000 bauds per second with carrier frequencies separated by 4000 Hz?

7000 Hz


What are the implications to the high speed train service if the bandwidth of the signaling network is not enough to support the data load required for 2 way operations on the same track?

Lord Jesus Christ


A digital signaling system is required to operate at 9600 bps If a signal element encodes a 8-bit word what is the minimum required bandwidth of the channel?

answer in www.ent.mrt.ac.lk/~ekulasek/cni/cni4-eck.ppt last slide


Which signaling system elements and modes does signaling system 7 use?

non associated signaling quasi-associated signaling circuit related signaling non-circuit-related signaling


A digital data signaling system is requird to operate at 9600bps If a signal element encodes a 4-bit word what is the minimum required bandwidth of the channel?

C = 9600 = 2B*3 = 2B * 3 W = 1600 Hz


What is the difference between in channel and common channel signaling?

One signaling path needed per trunk groupFaster and simpler to transfer information between control processorsNo possibility of interference with speech pathSignaling can't be accessed by customer.Value-added services of a signaling control pointShared processing for small officesAllows centralized decision making (flow mgmt)Permits Advanced Intelligent Network (AIN) services


Important factors that can be used to comparing the various digital-to digital encoding schemes?

A lack of high-frequency components means that less bandwidth is required for transmission. In addition, lack of a direct-current (dc) component means that ac coupling via transformer is possible. The magnitude of the effects of signal distortion and interference depend on the spectral properties of the transmitted signal. Clocking: Encoding can be used to synchronize the transmitter and receiver. Error detection: It is useful to have some error detection capability built into the physical signaling encoding scheme. Signal interference and noise immunity: Certain codes exhibit superior performance in the presence of noise. Cost and complexity: The higher the signaling rate to achieve a given data rate, the greater the cost. Some codes require a signaling rate that is in fact greater than the actual data rate


What is the sampling theorem?

Answer The most common sampling theorem is known from Harry Nyquist, 1889 -1976. It is the foundation of digital audio. In 1928, Nyquist wrote a paper called "Certain Factors in Telegraph Transmission Theory" where he proved that for complete signal reconstruction, the required frequency bandwidth is proportional to the signaling speed, and that the minimum bandwidth is equal to half the number of code elements per second.


How many signaling methods the information can be transmitted?

Information can be transmitted through three main signaling methods: electrical signaling, chemical signaling, and mechanical signaling. Electrical signaling involves the use of electrical impulses, while chemical signaling relies on the transmission of neurotransmitters or hormones. Mechanical signaling involves physical interactions that convey information, such as touch or pressure.


What is reflection in wireless signaling?

Reflection in wireless signaling occurs when a portion of the signal is bounced back towards the transmitter due to encountering an impedance mismatch or a change in the medium. This can result in interference, signal degradation, and loss of data integrity in the communication. Reflections are commonly managed using techniques like signal processing, antenna design, and placement optimization.


When was Science Signaling created?

Science Signaling was created in 2008.


What is the importance of ieee 802.11b wireless network in developing manet infrastructure?

IEEE expanded on the original 802.11 standard in July 1999, creating the 802.11b specification. 802.11b supports bandwidth up to 11 Mbps, comparable to traditional Ethernet. 802.11b uses the same unregulated radio signaling frequency (2.4 GHz) as the original 802.11 standard. Vendors often prefer using these frequencies to lower their production costs. Being unregulated, 802.11b gear can incur interference from microwave ovens, cordless phones, and other appliances using the same 2.4 GHz range. However, by installing 802.11b gear a reasonable distance from other appliances, interference can easily be avoided.