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What signal is defined as a digital signal of 64Kbps?
DS0
How ISDN PRI equals 2.048 mbps?
As we know that voice signal is of frequency 3.3 Khz,and as per the Nyquist Rate or PCM quantization rate for transmission we required signal of >=2f(here 'f' is GIF [3.3]=4).and each sample of data is a byte. DS0: provides one 64kbps channel.E1: 32 DS0 or 32 channels with 64kbps Also we know that voice signal frame consisits of 32 bytes .Hence value of an E1 will be =2x4Khzx8bitsx32slots =2.048Mbps
How many ds0 on a DS3?
672 DS0 make 1 DS3
How many ds0 in a ds3?
24 DS0 make 1 DS1 28 DS1 make 1 DS3 672 DS0 make 1 DS3
How many ds0 make an ds1?
24 ds0's make 1 ds1.
How many channels DS0 ie 64k in a T1?
24
What does frequency of a signal measure?
repetition rate of signal
How many DS0 channels are there in a T3?
up to 670 (voice). If its t1, then only 28.
Which is not a characteristic of an analog signal?
impedance. An analogue signal, does not have a data, or sample, rate.
What is slew rate?
slew rate is the ability of an amplifier to reproduce amplified version of the input signal in terms of frequency and phase. The input signal amplitude change is fast. But the amplifier will take some time to give response to the changes in input signal. i.e. how fast the amplifier tracks the input signal is the slew rate. For an amplifier the slew rate should be high in order to avoid signal distortion. The rate of change of the output voltage of an amplifier for the given input signal change is called the slew rate.
What is the relationship between the bit rate of a signal before and after it has been encoded using DSSS?
In Direct Sequence Spread Spectrum (DSSS), the bit rate of the original signal is spread over a wider bandwidth by multiplying it with a pseudo-random noise (PN) sequence, known as the spreading code. This results in a higher chip rate, which is the rate at which the individual bits of the original signal are processed. Consequently, while the bit rate of the original signal remains unchanged, the effective transmission rate is increased due to the spreading, allowing for improved resistance to interference and better security. Therefore, the relationship is that the bit rate of the original signal is maintained, but the spread signal operates at a higher chip rate.
What does the sampling theorem tell us concerning the rate or sampling required for an analog signal?
You must sample at 2 x the rate of the analog signal (2 x the analog signal frequency).
