Chapter 2 (Part 1)
... For an AM DSCFC wave with a peak unmodulated carrier voltage Ec = 10 Vp, a load resistor of RL = 10 and m = 1, determine a) Powers of the carrier and the upper and lower sidebands. b) Total sideband power. c) Total power of the modulated wave. d) Draw the power spectrum. ...
... For an AM DSCFC wave with a peak unmodulated carrier voltage Ec = 10 Vp, a load resistor of RL = 10 and m = 1, determine a) Powers of the carrier and the upper and lower sidebands. b) Total sideband power. c) Total power of the modulated wave. d) Draw the power spectrum. ...
sidebands
... 1. Spectrum space is conserved and allows more signals to be transmitted in the same frequency range. 2. All power is channeled into a single sideband. This produces a stronger signal that will carry farther and will be more reliably received at greater distances. 3. Occupied bandwidth space is narr ...
... 1. Spectrum space is conserved and allows more signals to be transmitted in the same frequency range. 2. All power is channeled into a single sideband. This produces a stronger signal that will carry farther and will be more reliably received at greater distances. 3. Occupied bandwidth space is narr ...
EC 6402-UNIT - 2 (Part-2 of 2) Teaching material
... • The tuned circuit is tuned so the fc, the nominal input frequency, is on the slope, not at the centre of the tuned circuits. As the FM signal deviates about fc on the tuned circuit slope, the amplitude of the output varies in proportion to the deviation from fc. Thus the FM signal is effectively c ...
... • The tuned circuit is tuned so the fc, the nominal input frequency, is on the slope, not at the centre of the tuned circuits. As the FM signal deviates about fc on the tuned circuit slope, the amplitude of the output varies in proportion to the deviation from fc. Thus the FM signal is effectively c ...
fiber lec 13 optical coherent receiver
... However, the SNR improvement is lower by the factor of 2 ( or by 3 dB ) than in the homodyne case. This reduction is referred to as the 3-dB heterodyne –detection penalty. The origin of the 3 dB penalty can be seen by considering the signal power ( proportional to the square of the current ) because ...
... However, the SNR improvement is lower by the factor of 2 ( or by 3 dB ) than in the homodyne case. This reduction is referred to as the 3-dB heterodyne –detection penalty. The origin of the 3 dB penalty can be seen by considering the signal power ( proportional to the square of the current ) because ...
+ v if
... Note that the first term on the RHS only reflects detector parameters, and the second term reflects only modulation index. It is convenient to refer to the first term as “Reference Detector Power”, PDR(dBW), as it captures the two important detector parameters in one number. The minimum required tot ...
... Note that the first term on the RHS only reflects detector parameters, and the second term reflects only modulation index. It is convenient to refer to the first term as “Reference Detector Power”, PDR(dBW), as it captures the two important detector parameters in one number. The minimum required tot ...
Performance of Electronic Dispersion Compensation for Multi-Level
... EDC and phase estimation For EDC a linear transversal filter with different filter lengths is used. The coefficients are determined by the inverse fibre transfer function and are truncated to the desired filter length with a rectangular window. To compensate for CD at least two samples per symbol ar ...
... EDC and phase estimation For EDC a linear transversal filter with different filter lengths is used. The coefficients are determined by the inverse fibre transfer function and are truncated to the desired filter length with a rectangular window. To compensate for CD at least two samples per symbol ar ...
AN01 – Application Note Light Barrier Concepts
... transmitter, the receiver sees a modulated light by the superposition of the environment light and the LED. Thus, a simple demodulation in the receiver can separate the two parts. At the end, only the photo current generated by the LED of the light barrier will be used. It is to note, that most of t ...
... transmitter, the receiver sees a modulated light by the superposition of the environment light and the LED. Thus, a simple demodulation in the receiver can separate the two parts. At the end, only the photo current generated by the LED of the light barrier will be used. It is to note, that most of t ...
angle modulation
... broadcast is generally called wide-FM, or W-FM A narrowband form is used for voice communications in commercial and amateur radio settings. In two-way radio, narrowband narrow-fm (N-FM) is used to conserve bandwidth. In addition, it is used to send signals into space. ...
... broadcast is generally called wide-FM, or W-FM A narrowband form is used for voice communications in commercial and amateur radio settings. In two-way radio, narrowband narrow-fm (N-FM) is used to conserve bandwidth. In addition, it is used to send signals into space. ...
RECEIVER - WordPress.com
... Q1= f1/BW= 54.5 , Q2=f2/BW=164 But practically Q is limited upto 120 Considering Q limit 120 , BW changes to 13.6 KHz ( as BW=f2/Q2=1640/120) So Adjacent channel is picked up resulting in variation in bandwidth. ...
... Q1= f1/BW= 54.5 , Q2=f2/BW=164 But practically Q is limited upto 120 Considering Q limit 120 , BW changes to 13.6 KHz ( as BW=f2/Q2=1640/120) So Adjacent channel is picked up resulting in variation in bandwidth. ...
PULSE MODULATION
... transmitting channel depends on rise time of the pulse. Instantaneous power of transmitter varies. Noise interference is minimum. Simple to implement. Similar to F.M. ...
... transmitting channel depends on rise time of the pulse. Instantaneous power of transmitter varies. Noise interference is minimum. Simple to implement. Similar to F.M. ...
G3A01 What is the sunspot number?
... G4A02 What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver? A. Interference from impulse noise will be eliminated B. More stations can be accommodated within a given signal passband C. It may be possible to reduce or eliminate i ...
... G4A02 What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver? A. Interference from impulse noise will be eliminated B. More stations can be accommodated within a given signal passband C. It may be possible to reduce or eliminate i ...
G4-Amateur-Radio-Practices
... G4A02 What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver? A. Interference from impulse noise will be eliminated B. More stations can be accommodated within a given signal passband C. It may be possible to reduce or eliminate i ...
... G4A02 What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver? A. Interference from impulse noise will be eliminated B. More stations can be accommodated within a given signal passband C. It may be possible to reduce or eliminate i ...
AM Radio - s3.amazonaws.com
... – Electromagnetics (antennas, high-frequency circuits) – Power (batteries, power supplies) – Solid state (miniaturization, low-power electronics) Lecture 27 ...
... – Electromagnetics (antennas, high-frequency circuits) – Power (batteries, power supplies) – Solid state (miniaturization, low-power electronics) Lecture 27 ...
Data Sheet
... • Fail Safe operation due to supervision of function, both in antenna box and relay box. ...
... • Fail Safe operation due to supervision of function, both in antenna box and relay box. ...
TenTec Orion
... How can undesirable signals be kept from ruining RX performance? • What is a roofing filter, and what does it do? • It’s not a bandwidth filter - it’s for limiting signals outside your receive frequency from getting into the rx chain. Remember what an undesired signal is? Loud signals on freq., goo ...
... How can undesirable signals be kept from ruining RX performance? • What is a roofing filter, and what does it do? • It’s not a bandwidth filter - it’s for limiting signals outside your receive frequency from getting into the rx chain. Remember what an undesired signal is? Loud signals on freq., goo ...
Comparison of Transverter vs. Tranceiver Performance (K2DH)
... DYNAMIC RANGE: This term refers to a receiver’s ability to handle both weak and strong signals and demodulate them accurately and without distortion. There are two types of Dynamic Range (DR) measurements. One is Blocking DR, which is the difference between the noise floor and the level of a signal ...
... DYNAMIC RANGE: This term refers to a receiver’s ability to handle both weak and strong signals and demodulate them accurately and without distortion. There are two types of Dynamic Range (DR) measurements. One is Blocking DR, which is the difference between the noise floor and the level of a signal ...
Continuous-wave radar
Continuous-wave radar is a type of radar system where a known stable frequency continuous-wave radio energy is transmitted and then received from any reflecting objects. Continuous-wave (CW) radar uses Doppler, which renders the radar immune to interference from large stationary objects and slow moving clutter.CW radar systems are used at both ends of the range spectrum. Inexpensive radio-altimeters, proximity sensors and sport accessories that operate from a few dozen feet to several kilometers Costly early-warning CW angle track (CWAT) radar operating beyond 100 km for use with surface-to-air missile systems↑ ↑