Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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What is the channel capacity, in bits per second, of a 20-MHz channel with an S/N ratio of 23 dB?
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- a. A communication network has a bandwidth of 10 kHz. Calculate the signal-to-noise ratio in dB if the capacity of the channel for a 100Kbps b. A communications channel with a bandwidth of 4kHz has a signal power to noise ratio of 7. Determine the Channel Capacity. c. The bandwidth in b above is reduced by 25%. How much should the signal power be increased to maintain the same channel capacity?arrow_forwardIn a Mach-Zender interferometer you measure the visibility in both output ports and find V1 = 1 and V2 = 0.5. What are the transmission and reflection coefficients, r and t?arrow_forward14.a. While conducting an OTDR trace, you find that the signal strength drops by 0.091 dB over an 82 m section of fiber. What's the attenuation in this fiber?A. 0.80 dB/kmB. 7.46 dB/kmC. 0.91 dB/kmD. 1.11 dB/km14.b. Which component converts an optical signal into an electrical signal in a transceiver?A. LEDB. EDFAC. Optical modemD. Photodiodearrow_forward
- Given Ipss = 16 mA and Vp= -5 V, sketch the transfer characteristics. Determine the value of Ip at VGS =-3 V from the curve, and compare it to the value determined using Shockley's equation. Repeat the above for VGS =-1 V. TFETarrow_forward32arrow_forward20.a. A –0.5 dBm signal is transmitted through a fiber link. The transceiver at the receiving end has a receiver sensitivity threshold of –13 dBm. What's the optical budget in this link?A. 13.5 dBB. 6 dBC. 12.5 dBD. 13 dB20.b. A transceiver has an extinction ratio of 6 in a fiber link. What's the extinction ratio power penalty?A. 1.5 dBB. 7.8 dBC. 1.1 dBD. 6 dBarrow_forward
- Given the narrow (usable) audio bandwidth of a telephone transmission facility with a bandwidth of 5 kHz, a nominal SNR of 55 dB, and a certain level of distortion. What is the theoretical maximum channel capacity of traditional telephone lines?arrow_forwardTwenty baseband channels, each band-limited to 2.4 kHz, are sampled and multiplexed at a rate of 6 kHz. What is the required bandwidth for transmission if the multiplexed samples use a PCM system?arrow_forward
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