ekt 313 tutorial 4
... 6. What is the difference between forward AGC and reverse AGC? In forward AGC, increasing the collector current of an IF amplifier transistor decreases the gain. In reverse AGC, increasing the collector current increases the gain. 7. Name the three main sources of selectivity for receivers implement ...
... 6. What is the difference between forward AGC and reverse AGC? In forward AGC, increasing the collector current of an IF amplifier transistor decreases the gain. In reverse AGC, increasing the collector current increases the gain. 7. Name the three main sources of selectivity for receivers implement ...
SIMPLE LOW PASS AND HIGH PASS FILTER
... and C a desired resonant frequency is obtained, whereas by adjusting R, the bandwidth and the height of the response curve is adjusted. The sharpness of the resonance is measured quantitatively by the quality factor Q. This is defined as the ratio of the resonant frequency to the bandwidth. ...
... and C a desired resonant frequency is obtained, whereas by adjusting R, the bandwidth and the height of the response curve is adjusted. The sharpness of the resonance is measured quantitatively by the quality factor Q. This is defined as the ratio of the resonant frequency to the bandwidth. ...
Radio over fiber
... A RoF system consists of a Central Site (CS) and a Remote Site (RS) connected by an optical fiber link or network The transportation of high-frequency signals is more challenging because it requires high frequency components, and large link bandwidth. This means that high-frequency signals are more ...
... A RoF system consists of a Central Site (CS) and a Remote Site (RS) connected by an optical fiber link or network The transportation of high-frequency signals is more challenging because it requires high frequency components, and large link bandwidth. This means that high-frequency signals are more ...
Frequency Selective Circuits
... Revision 3/20/2006 Latest Revision 8/3/2010 by Lee Brinton and James Quebbeman ...
... Revision 3/20/2006 Latest Revision 8/3/2010 by Lee Brinton and James Quebbeman ...
don`t replace your garage door opener to get rid of
... The FMR-201 is a crystal controlled single channel receiver, comprising of receiving, decoding and open collector output sections. A specially designed LARGE SCALE INTEGRATED CIRCUIT (LSI) is employed in the decoder section, which ensures operation at low supply voltage, highest reliability, associa ...
... The FMR-201 is a crystal controlled single channel receiver, comprising of receiving, decoding and open collector output sections. A specially designed LARGE SCALE INTEGRATED CIRCUIT (LSI) is employed in the decoder section, which ensures operation at low supply voltage, highest reliability, associa ...
Laboratory 9: Circuits and Filters
... 3dB drop of signal power from highest point on gain Signal power is half of original value ...
... 3dB drop of signal power from highest point on gain Signal power is half of original value ...
review to communication system
... Half duplex: two ways comm but only one party can transmit in one time. eg:radio for military, police, etc. Full duplex: two ways, can transmit and receive simultaneously. Eg:mobile phone. ...
... Half duplex: two ways comm but only one party can transmit in one time. eg:radio for military, police, etc. Full duplex: two ways, can transmit and receive simultaneously. Eg:mobile phone. ...
Lesson 5 - Wednesday Training Net
... Discriminate between multiple signals. T7A04 Sensitivity – The ability to receive and detect the presence of a signal. T7A01 ...
... Discriminate between multiple signals. T7A04 Sensitivity – The ability to receive and detect the presence of a signal. T7A01 ...
CCVT in Power Line Communication
... CCVT is also an economical choice when the transmission line is used for power line communication (refer Fig 8.6). High frequency RF signals can be coupled to the power line for communication. Filtering of this RF signal is carried out by a parallel R-L-C circuit which is also known as tuning pack. ...
... CCVT is also an economical choice when the transmission line is used for power line communication (refer Fig 8.6). High frequency RF signals can be coupled to the power line for communication. Filtering of this RF signal is carried out by a parallel R-L-C circuit which is also known as tuning pack. ...
Preliminary Work
... a. Determine the midband gain, upper and lower 3dB frequencies. b. Compare the simulated results to the values obtained during the preliminary work. If there are large discrepancies please correct your preliminary calculation. c. Determine the input voltage amplitude that will produce a 20Vpp output ...
... a. Determine the midband gain, upper and lower 3dB frequencies. b. Compare the simulated results to the values obtained during the preliminary work. If there are large discrepancies please correct your preliminary calculation. c. Determine the input voltage amplitude that will produce a 20Vpp output ...
TAP 318 - 3: Data transfer on an optical fibre
... Since the photodiode also responds to infrared, you can see the digital signals from an infrared TV or video remote control, if the remote control is pointed at the photodiode and you press a button. To see the signal from the controller, you need to place the oscilloscope across the output of the a ...
... Since the photodiode also responds to infrared, you can see the digital signals from an infrared TV or video remote control, if the remote control is pointed at the photodiode and you press a button. To see the signal from the controller, you need to place the oscilloscope across the output of the a ...
10m 10 100G 1u 1M 10f 1p 100 10M
... You adjust the bias voltages so that Vov increases by a factor of two. What happens to the current, small signal parameters, low frequency gain, output pole frequency, output unity gain frequency, and input capacitance? Answers should be of the form “increase 5x” “decrease 10x” “stay the sa ...
... You adjust the bias voltages so that Vov increases by a factor of two. What happens to the current, small signal parameters, low frequency gain, output pole frequency, output unity gain frequency, and input capacitance? Answers should be of the form “increase 5x” “decrease 10x” “stay the sa ...
frequency_effects_lab
... A(db) = 20log101 = 20 x 0 = 0 dB The calculated voltage gain is 0 while the midband gain from the Bode plot is 34.5 dB Bandwidth = fH - fL Bw = 28.593MHz – 211.884Hz = 28.593 MHz What types of applications can this circuit be used in? Explain. The circuit can be used as an amplifier or a filter sinc ...
... A(db) = 20log101 = 20 x 0 = 0 dB The calculated voltage gain is 0 while the midband gain from the Bode plot is 34.5 dB Bandwidth = fH - fL Bw = 28.593MHz – 211.884Hz = 28.593 MHz What types of applications can this circuit be used in? Explain. The circuit can be used as an amplifier or a filter sinc ...
Physics 536 - Assignment #3
... (a) Assuming vin (t) = Vin eiωt and vout = Vout eiωt , solve for the magnitude of Vout in terms of Vin , R, L, and C. (b) In principle, this circuit could have a resonance if R is too big. Assuming that R is large enough that it can be ignored, estimate the resonant frequency, ω0 . (c) If this circu ...
... (a) Assuming vin (t) = Vin eiωt and vout = Vout eiωt , solve for the magnitude of Vout in terms of Vin , R, L, and C. (b) In principle, this circuit could have a resonance if R is too big. Assuming that R is large enough that it can be ignored, estimate the resonant frequency, ω0 . (c) If this circu ...
Heterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.