
Radio Receivers
... The harmonics are substantially reduced by the use of band pass filter which passes only the minimum bandwidth necessary to preserve the information signal. The If amplifiers are specially designed for ideal saturation and is called limiter. The detector stage consists of discriminator and de-emphas ...
... The harmonics are substantially reduced by the use of band pass filter which passes only the minimum bandwidth necessary to preserve the information signal. The If amplifiers are specially designed for ideal saturation and is called limiter. The detector stage consists of discriminator and de-emphas ...
2243_ProJet 3000-3500-3510-Facility Requirements Guide
... Software, which is installed on each intended users' workstation to allow users to select, preview, and submit print jobs; as well as manage the print queue (for designated administrators). Prior to installing the software, ensure that the initially selected workstation meets the following minimum s ...
... Software, which is installed on each intended users' workstation to allow users to select, preview, and submit print jobs; as well as manage the print queue (for designated administrators). Prior to installing the software, ensure that the initially selected workstation meets the following minimum s ...
MK484 SHORTWAVE RADIO
... metres or so mounted as high as possible. For the most part this gives adequate results. ...
... metres or so mounted as high as possible. For the most part this gives adequate results. ...
Understanding speakers and ohms
... Two reasons: (1) If you connect your amplifier to the wrong speaker impedance, you risk damaging the amp. In tube amps, too high a load impedance (or a disconnected load) can result in damage to the output tubes or output transformer, while in solid state amps, if the speaker impedance is too low, t ...
... Two reasons: (1) If you connect your amplifier to the wrong speaker impedance, you risk damaging the amp. In tube amps, too high a load impedance (or a disconnected load) can result in damage to the output tubes or output transformer, while in solid state amps, if the speaker impedance is too low, t ...
document
... This publication provides information on how to evaluate electrical equipment that has been exposed to water through flooding, fire fighting activities, hurricanes, etc. It is designed for use by suppliers, installers, inspectors and users of electrical products. Electrical equipment exposed to wate ...
... This publication provides information on how to evaluate electrical equipment that has been exposed to water through flooding, fire fighting activities, hurricanes, etc. It is designed for use by suppliers, installers, inspectors and users of electrical products. Electrical equipment exposed to wate ...
NEMA Evaluating Water damaged Electrical Equipment
... This publication provides information on how to evaluate electrical equipment that has been exposed to water through flooding, fire fighting activities, hurricanes, etc. It is designed for use by suppliers, installers, inspectors and users of electrical products. Electrical equipment exposed to wate ...
... This publication provides information on how to evaluate electrical equipment that has been exposed to water through flooding, fire fighting activities, hurricanes, etc. It is designed for use by suppliers, installers, inspectors and users of electrical products. Electrical equipment exposed to wate ...
shortwave power amplifier with gu84b
... HF PART In this amplifier a tetrode GU 84b is used in a grounded-cathode circuit (input into control grid). This amplifier achieves excellent linearity by the voltage stabilization of the control grid bias and the screen voltage. The power input is given to the control grid, using a broadband power ...
... HF PART In this amplifier a tetrode GU 84b is used in a grounded-cathode circuit (input into control grid). This amplifier achieves excellent linearity by the voltage stabilization of the control grid bias and the screen voltage. The power input is given to the control grid, using a broadband power ...
MC3362 Low-Power Narrowband FM Receiver
... fed into one second mixer input pin, the other input pin being connected to VCC. Pin 6 (VCC) is treated as a common point for emitter–driven signals. The 455 kHz IF is typically filtered using a ceramic bandpass filter then fed into the limiter input pin. The limiter has 10 µV sensitivity for – 3.0 ...
... fed into one second mixer input pin, the other input pin being connected to VCC. Pin 6 (VCC) is treated as a common point for emitter–driven signals. The 455 kHz IF is typically filtered using a ceramic bandpass filter then fed into the limiter input pin. The limiter has 10 µV sensitivity for – 3.0 ...
Analog Devices HMC-AUH318 Datasheet
... Eutectic Die Attach: A 80/20 gold tin preform is recommended with a work surface temperature of 255 °C and a tool temperature of 265 °C. When hot 90/10 nitrogen/hydrogen gas is applied, tool tip temperature should be 290 °C. DO NOT expose the chip to a temperature greater than 320 °C for more than 2 ...
... Eutectic Die Attach: A 80/20 gold tin preform is recommended with a work surface temperature of 255 °C and a tool temperature of 265 °C. When hot 90/10 nitrogen/hydrogen gas is applied, tool tip temperature should be 290 °C. DO NOT expose the chip to a temperature greater than 320 °C for more than 2 ...
T.TSS Meridian Gyros-6pp - Oceanology International
... The Meridian gyrocompass product range is suitable for the ever-changing needs of a modern integrated navigation bridge system. This includes highly accurate performance with low cost of ownership and system flexibility. Due to the Meridian’s small size and fast settle time of less than 45 minutes, ...
... The Meridian gyrocompass product range is suitable for the ever-changing needs of a modern integrated navigation bridge system. This includes highly accurate performance with low cost of ownership and system flexibility. Due to the Meridian’s small size and fast settle time of less than 45 minutes, ...
isometer
... detection and quality assurance with user-friendly and intuitive operation, reliable evaluation and simple communication. Fast localisation of insulation faults Bender insulation fault location systems enable fast localisation and elimination of insulation faults even during operation. Disconnection ...
... detection and quality assurance with user-friendly and intuitive operation, reliable evaluation and simple communication. Fast localisation of insulation faults Bender insulation fault location systems enable fast localisation and elimination of insulation faults even during operation. Disconnection ...
AM transmitters and receivers
... human voice can make sounds above this range, but for voice radio communications we do not need to use those higher voice frequencies. All of the intelligence (information) we need is contained in the voice frequencies below 3000 Hz. Because this is such an important topic, we are going to go over t ...
... human voice can make sounds above this range, but for voice radio communications we do not need to use those higher voice frequencies. All of the intelligence (information) we need is contained in the voice frequencies below 3000 Hz. Because this is such an important topic, we are going to go over t ...
Heathkit SB-610 - Orange County (California) Amateur Radio Club
... Horizontal deflection in this mode is supplied by the built-in sweep oscillator. RF Trapezoid Monitoring: This mode is a good one to monitor the performance of a linear amplifier. The output of the transmitter is connected, through a pair of RCA jacks (EXCITER) on the rear of the monitor scope, to t ...
... Horizontal deflection in this mode is supplied by the built-in sweep oscillator. RF Trapezoid Monitoring: This mode is a good one to monitor the performance of a linear amplifier. The output of the transmitter is connected, through a pair of RCA jacks (EXCITER) on the rear of the monitor scope, to t ...
AMPLIFIER v12 OPERATION MANUAL ADDRESS 9 4 1 2 3 13 16
... To maintain “Precision Bias” requires an advanced bias circuit that must have a very high degree of stability under a wide range of temperatures and load conditions. The usual bias network is of such high impedance and poor thermal regulation that at the extremes of operation, bias currents are inef ...
... To maintain “Precision Bias” requires an advanced bias circuit that must have a very high degree of stability under a wide range of temperatures and load conditions. The usual bias network is of such high impedance and poor thermal regulation that at the extremes of operation, bias currents are inef ...
PJB SIX PAK
... Input matched for low signal to noise ratio and optimum transfer of electrical signal from modern high-end basses. 8. INSTRUMENT INPUT JACK. This is a standard ¼ inch mono jack socket. 9. VOLUME CONTROL. This is the master volume control and it controls how much power you send to your speakers as we ...
... Input matched for low signal to noise ratio and optimum transfer of electrical signal from modern high-end basses. 8. INSTRUMENT INPUT JACK. This is a standard ¼ inch mono jack socket. 9. VOLUME CONTROL. This is the master volume control and it controls how much power you send to your speakers as we ...
XXI. Technology/Engineering, High School
... chapter. An image of the ruler is not reproduced in this publication. Each student also had sole access to a calculator with at least four functions and a square-root key. The use of bilingual word-to-word dictionaries was allowed for current and former English language learner students only, during ...
... chapter. An image of the ruler is not reproduced in this publication. Each student also had sole access to a calculator with at least four functions and a square-root key. The use of bilingual word-to-word dictionaries was allowed for current and former English language learner students only, during ...
Integrated Sequence of Operations: Coordinating ATS and UPS Set
... Uncoordinated set points between systems is typically discovered and corrected during site commissioning. But if the site was never properly commissioned, or if equipment has been replaced or adjusted over time, the problem may expose itself only during an electric utility event. Technicians who spe ...
... Uncoordinated set points between systems is typically discovered and corrected during site commissioning. But if the site was never properly commissioned, or if equipment has been replaced or adjusted over time, the problem may expose itself only during an electric utility event. Technicians who spe ...
T Series amplifiers Operating Manual
... The Outline T Series amplifiers are among the most powerful professional amplifiers available and are capable of producing much more power than many loudspeakers can handle. It is the user's responsibility to use suitable speakers with the amplifier and to use them in a sensible way that will not ca ...
... The Outline T Series amplifiers are among the most powerful professional amplifiers available and are capable of producing much more power than many loudspeakers can handle. It is the user's responsibility to use suitable speakers with the amplifier and to use them in a sensible way that will not ca ...
Passive Intermodulation
... (BER). This will degrade the throughput of the link, rendering the data information or voice communications unusable. Intermodulation products are the emissions at frequencies generated by the combination of two or more frequencies in a non-linear device. A non-linear device is one whose output sign ...
... (BER). This will degrade the throughput of the link, rendering the data information or voice communications unusable. Intermodulation products are the emissions at frequencies generated by the combination of two or more frequencies in a non-linear device. A non-linear device is one whose output sign ...
Datasheets - Romvision
... The MPMC Family of systems are built from CurtissWright's vast embedded computing components which range from high-performance Processor modules, Graphics, Video, Networking & Communication I/O boards. Integrated into Curtiss-Wright's ultra rugged chassis, MPMC systems are easily modified to meet sp ...
... The MPMC Family of systems are built from CurtissWright's vast embedded computing components which range from high-performance Processor modules, Graphics, Video, Networking & Communication I/O boards. Integrated into Curtiss-Wright's ultra rugged chassis, MPMC systems are easily modified to meet sp ...
Meridian Gyrocompasses
... The Meridian gyrocompass product range is suitable for the ever-changing needs of a modern integrated navigation bridge system. This includes highly accurate performance with low cost of ownership and system flexibility. Due to the Meridian’s small size and fast settle time of less than 45 minutes, ...
... The Meridian gyrocompass product range is suitable for the ever-changing needs of a modern integrated navigation bridge system. This includes highly accurate performance with low cost of ownership and system flexibility. Due to the Meridian’s small size and fast settle time of less than 45 minutes, ...
Public address system

A public address system (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to address a large public, for example for announcements of movements at large and noisy air and rail terminals or at a sports stadium. The term is also used for systems which may additionally have a mixing console, and amplifiers and loudspeakers suitable for music as well as speech, used to reinforce a sound source, such as recorded music or a person giving a speech or distributing the sound throughout a venue or building.Simple PA systems are often used in small venues such as school auditoriums, churches, and small bars. PA systems with many speakers are widely used to make announcements in public, institutional and commercial buildings and locations. Intercom systems, installed in many buildings, have microphones in many rooms allowing the occupants to respond to announcements.Sound reinforcement systems and PA systems may use some similar components, but with differing application, although the distinction between the two is not clear-cut. Sound reinforcement systems are for live music or performance, whereas PA systems are primarily for reproduction of speech. In Britain any PA system is sometimes colloquially referred to as a Tannoy, after the company of that name now owned by TC Electronic Group, which supplied a great many of the PA systems used previously in Britain.