G4-Amateur-Radio-Practices
... G4A14 What is likely to happen if a transceiver's ALC system is not set properly when transmitting AFSK signals with the radio using single sideband mode? A. ALC will invent the modulaton of the AFSK mode B. Improper action of ALC distorts the signal and can cause spurious emissions C. When using d ...
... G4A14 What is likely to happen if a transceiver's ALC system is not set properly when transmitting AFSK signals with the radio using single sideband mode? A. ALC will invent the modulaton of the AFSK mode B. Improper action of ALC distorts the signal and can cause spurious emissions C. When using d ...
RS-232 Communications
... Most everything comes out of the box with 9600,8,none,1. Including most Internet related devices like routers. Another common (old-school) setting is 9600,7,even,2. ...
... Most everything comes out of the box with 9600,8,none,1. Including most Internet related devices like routers. Another common (old-school) setting is 9600,7,even,2. ...
Chapter 1 Lecture Presentation
... Copper wires, coaxial cables, optical fiber Ducts, conduits, telephone poles … ...
... Copper wires, coaxial cables, optical fiber Ducts, conduits, telephone poles … ...
HMC565LC5 Datasheet
... Inc., For price, delivery and to place orders: Microwave Corporation, Elizabeth Drive, ...
... Inc., For price, delivery and to place orders: Microwave Corporation, Elizabeth Drive, ...
Kondratenko_S.V.2
... 1. In the early stages of designing high-speed transceiver in serial channels it is advisable to take into account the effect of parasitic constructive elements in order to choose among alternative realizations of analog parts of the transmitter and receiver. 2. To evaluate the noise immunity of the ...
... 1. In the early stages of designing high-speed transceiver in serial channels it is advisable to take into account the effect of parasitic constructive elements in order to choose among alternative realizations of analog parts of the transmitter and receiver. 2. To evaluate the noise immunity of the ...
MODULE1
... data and retrieve it later without degradation. In an analog system, aging and wear and tear will degrade the information in storage, but in a digital system, as long as the wear and tear is below a certain level, the information can be recovered perfectly. Theoretically, there is no data-loss when ...
... data and retrieve it later without degradation. In an analog system, aging and wear and tear will degrade the information in storage, but in a digital system, as long as the wear and tear is below a certain level, the information can be recovered perfectly. Theoretically, there is no data-loss when ...
Tunneled InTerneT GaTeway
... Since the debut of the iPhone in 2007, the private sector has seen a proliferation of personal mobile devices used in the workplace. Government customers, while slower to adopt commercially available mobile devices in the workplace, recognize the cost and productivity advantages and are looking for ...
... Since the debut of the iPhone in 2007, the private sector has seen a proliferation of personal mobile devices used in the workplace. Government customers, while slower to adopt commercially available mobile devices in the workplace, recognize the cost and productivity advantages and are looking for ...
Datasheet - Mouser Electronics
... rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Phone: 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or pat ...
... rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Phone: 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or pat ...
HMC656LP2E Datasheet
... rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Phone: 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or pat ...
... rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Phone: 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or pat ...
Radio Communications Principles
... • Antenna gain is defined as the power output, in a particular direction compared to that produced in any direction by a perfect isotropic omnidirectional antenna • If an antenna has a gain of 3dB, that antenna improves on the isotropic antenna in that direction by 3dB, or a factor of 2 (100.3) • Th ...
... • Antenna gain is defined as the power output, in a particular direction compared to that produced in any direction by a perfect isotropic omnidirectional antenna • If an antenna has a gain of 3dB, that antenna improves on the isotropic antenna in that direction by 3dB, or a factor of 2 (100.3) • Th ...
Chapter 1 Random Processes
... • To study digital communication systems and their conceptual basis in information theory • To study how analog waveforms can be converted to digital signals (PCM) • Compute spectrum of digital signals • Examine effects of filtering – how does filtering affect the ability to recover digital informat ...
... • To study digital communication systems and their conceptual basis in information theory • To study how analog waveforms can be converted to digital signals (PCM) • Compute spectrum of digital signals • Examine effects of filtering – how does filtering affect the ability to recover digital informat ...
Sections to focus on - Rising Sun 4x4 Club
... Modulation – a way of altering a radio wave so that it can carry information - involves mixing a radio wave (the “carrier”) with a voice or other signal Amplitude Modulation (AM) – modulation method where the carrier’s “height” changes when it’s mixed with your voice Single sideband – when an AM sig ...
... Modulation – a way of altering a radio wave so that it can carry information - involves mixing a radio wave (the “carrier”) with a voice or other signal Amplitude Modulation (AM) – modulation method where the carrier’s “height” changes when it’s mixed with your voice Single sideband – when an AM sig ...
PSRR for Purepath Digital Audio Amplifiers
... • The audio 1-kHz signal • Harmonic distortion of the 1-kHz signal (second and third harmonics shown) • Sidebands to the 1-kHz tone (and to the harmonics) coming from the multiplication of the 100-Hz ripple voltage and the 1-kHz audio signal and its harmonics • Feedthrough of the 100-Hz signal, with ...
... • The audio 1-kHz signal • Harmonic distortion of the 1-kHz signal (second and third harmonics shown) • Sidebands to the 1-kHz tone (and to the harmonics) coming from the multiplication of the 100-Hz ripple voltage and the 1-kHz audio signal and its harmonics • Feedthrough of the 100-Hz signal, with ...
Chapter 5 PCM Modulator
... The Operation Theory of PCM Modulation PCM modulation is a kind of source coding. The meaning of source coding is the conversion from analog signal to digital signal. After converted to digital signal, it is easy for us to process the signal such as encoding, filtering the unwanted signal and so on. ...
... The Operation Theory of PCM Modulation PCM modulation is a kind of source coding. The meaning of source coding is the conversion from analog signal to digital signal. After converted to digital signal, it is easy for us to process the signal such as encoding, filtering the unwanted signal and so on. ...
Moving coil meters for DC measurements
... Frequency is the number of cycles per second. It is measured in hertz (Hz), but frequencies tend to be high so kilohertz (kHz) and megahertz (MHz) are often used. 1kHz = 1000Hz and 1MHz = 1000000Hz. ...
... Frequency is the number of cycles per second. It is measured in hertz (Hz), but frequencies tend to be high so kilohertz (kHz) and megahertz (MHz) are often used. 1kHz = 1000Hz and 1MHz = 1000000Hz. ...
Mobile Communications
... Intermediate results of calculations, state information or cache contents could ‘follow’ the mobile node through the fixed network. As soon as the mobile node reconnects, all information is available again. ...
... Intermediate results of calculations, state information or cache contents could ‘follow’ the mobile node through the fixed network. As soon as the mobile node reconnects, all information is available again. ...
Receiver2
... time background noise is picked up by the antenna, and you will hear noise greatly amplified. This noise is highly annoying and occurs because receiver gain is maximum without a signal. You can often overcome this problem by using a ...
... time background noise is picked up by the antenna, and you will hear noise greatly amplified. This noise is highly annoying and occurs because receiver gain is maximum without a signal. You can often overcome this problem by using a ...
angle modulation
... During the process of frequency modulations the frequency of carrier signal is changed in accordance with the instantaneous amplitude of message signal .Therefore the frequency of carrier after modulation is written as ...
... During the process of frequency modulations the frequency of carrier signal is changed in accordance with the instantaneous amplitude of message signal .Therefore the frequency of carrier after modulation is written as ...
Principles of Electronic Communication Systems
... the carrier, leaving the upper and lower sidebands. This type of signal is called a double-sideband suppressed carrier (DSSC) signal. No power is wasted on the carrier. A balanced modulator is a circuit used to produce the sum and difference frequencies of a DSSC signal but to cancel or balance ...
... the carrier, leaving the upper and lower sidebands. This type of signal is called a double-sideband suppressed carrier (DSSC) signal. No power is wasted on the carrier. A balanced modulator is a circuit used to produce the sum and difference frequencies of a DSSC signal but to cancel or balance ...
PRS‑TIC PC Telephone Interface Client
... using a telephone, hardphones as well as softphones. A traditional POTS telephone or PBX connection can be converted to VoIP via a Call Routing Gateway (the Cisco Linksys SPA3102 is recommended, but not included with the PRS-TIC). Voice response menu A voice response menu is used for feedback to the ...
... using a telephone, hardphones as well as softphones. A traditional POTS telephone or PBX connection can be converted to VoIP via a Call Routing Gateway (the Cisco Linksys SPA3102 is recommended, but not included with the PRS-TIC). Voice response menu A voice response menu is used for feedback to the ...
Telecommunication
Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.Early means of communicating over a distance included visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs. Other examples of pre-modern long-distance communication included audio messages such as coded drumbeats, lung-blown horns, and loud whistles. Modern technologies for long-distance communication usually involve electrical and electromagnetic technologies, such as telegraph, telephone, and teleprinter, networks, radio, microwave transmission, fiber optics, and communications satellites.A revolution in wireless communication began in the first decade of the 20th century with the pioneering developments in radio communications by Guglielmo Marconi, who won the Nobel Prize in Physics in 1909. Other highly notable pioneering inventors and developers in the field of electrical and electronic telecommunications include Charles Wheatstone and Samuel Morse (telegraph), Alexander Graham Bell (telephone), Edwin Armstrong, and Lee de Forest (radio), as well as John Logie Baird and Philo Farnsworth (television).