General License Test, Question and Answer Pool for Study.
... C. Amateur stations are allowed to use the frequency band only if they do not cause harmful interference to primary users G1A15 (D) [97.303] What must you do if, when operating on either the 30 or 60 meter bands, a station in the primary service interferes with your contact? D. Stop transmitting at ...
... C. Amateur stations are allowed to use the frequency band only if they do not cause harmful interference to primary users G1A15 (D) [97.303] What must you do if, when operating on either the 30 or 60 meter bands, a station in the primary service interferes with your contact? D. Stop transmitting at ...
Electronics Questions
... 11. Describe how you could do an experiment to measure the speed of sound. 12. A tourist is 1 km away from the castle in Edinburgh when the 1 o’clock gun is fired. They notice a time difference of 3 seconds between seeing the flash from the gun barrel and hearing the sound of the gun. Calculate the ...
... 11. Describe how you could do an experiment to measure the speed of sound. 12. A tourist is 1 km away from the castle in Edinburgh when the 1 o’clock gun is fired. They notice a time difference of 3 seconds between seeing the flash from the gun barrel and hearing the sound of the gun. Calculate the ...
CHAPTER THREE WIRELESS BI-DIRECTIONAL DATA COMMUNICATION 3.1 INTRODUCTION
... It is the expansion of transmission bandwidth that increases the noise immunity, thus narrow band FSK does not have a SNR advantage over ASK. FSK’s constant envelope has an advantage when transmitting through a nonlinear channel, and although implementing ASK is simple, it has relatively poor error ...
... It is the expansion of transmission bandwidth that increases the noise immunity, thus narrow band FSK does not have a SNR advantage over ASK. FSK’s constant envelope has an advantage when transmitting through a nonlinear channel, and although implementing ASK is simple, it has relatively poor error ...
THE AUSTRALIAN NATIONAL UNIVERSITY Gerard Borg RADIOFREQUENCY ENGINEERING SAMPLE QUESTIONS
... (1) Compute the wavelength of the current and voltage waves on the line. You may assume that the velocity of light in free space is 3 × 108 m/s. (2) Compute the inductance and capacitance per unit length on the lines. (3) What is the insertion loss of the line? (4) If the line is terminated in an im ...
... (1) Compute the wavelength of the current and voltage waves on the line. You may assume that the velocity of light in free space is 3 × 108 m/s. (2) Compute the inductance and capacitance per unit length on the lines. (3) What is the insertion loss of the line? (4) If the line is terminated in an im ...
NBB-402 CASCADABLE BROADBAND GaAs MMIC AMPLIFIER DC TO 8GHz Features
... Care should also be taken in the resistor selection to ensure that the current into the part never exceeds maximum datasheet operating current over the planned operating temperature. This means that a resistor between the supply and this pin is always required, even if a supply near 5.0V is availabl ...
... Care should also be taken in the resistor selection to ensure that the current into the part never exceeds maximum datasheet operating current over the planned operating temperature. This means that a resistor between the supply and this pin is always required, even if a supply near 5.0V is availabl ...
G482 Definitions
... electromagnetic waves - a self-propagating transverse wave that does not require a medium to travel through polarity - a wave property that allows us to distinguish between transverse and longitudinal waves polarisation - the process of turning an un-polarised wave into a plane polarised wave plane ...
... electromagnetic waves - a self-propagating transverse wave that does not require a medium to travel through polarity - a wave property that allows us to distinguish between transverse and longitudinal waves polarisation - the process of turning an un-polarised wave into a plane polarised wave plane ...
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... A) A 10Ω resistor in series with a j30Ω capacitor. B) A 10Ω resistor in series with a j30Ω inductor. C) A 10Ω resistor in parallel with a j30Ω inductor. D) A 10Ω resistor in parallel with a j30Ω capacitor. ...
... A) A 10Ω resistor in series with a j30Ω capacitor. B) A 10Ω resistor in series with a j30Ω inductor. C) A 10Ω resistor in parallel with a j30Ω inductor. D) A 10Ω resistor in parallel with a j30Ω capacitor. ...
Signals - COMP ENG
... The proper order in which the operations of time scaling and time shifting (a) Rectangular pulse x(t) of amplitude 1.0 and duration 2.0, symmetric about the origin. (b) Intermediate pulse v(t), representing a time-shifted version of x(t). (c) Desired signal y(t), resulting from the compression of v( ...
... The proper order in which the operations of time scaling and time shifting (a) Rectangular pulse x(t) of amplitude 1.0 and duration 2.0, symmetric about the origin. (b) Intermediate pulse v(t), representing a time-shifted version of x(t). (c) Desired signal y(t), resulting from the compression of v( ...
MAX5075 Push-Pull FET Driver with Integrated Oscillator and Clock Output General Description
... insufficient device grounding may also disturb other circuits sharing the same ground-return path. Any series inductance in the VCC, NDRV1, NDRV2, and/or GND paths can cause noise due to the very high di/dt when switching the MAX5075 with any capacitive load. Place one or more 0.1µF ceramic capacito ...
... insufficient device grounding may also disturb other circuits sharing the same ground-return path. Any series inductance in the VCC, NDRV1, NDRV2, and/or GND paths can cause noise due to the very high di/dt when switching the MAX5075 with any capacitive load. Place one or more 0.1µF ceramic capacito ...
EASA Weekend Technician Class 3
... A. Station identification is not required if the transmission is less than 15 seconds B. Station identification is not required if the transmission is less than 1 watt C. Station identification is required only if your station can be heard D. Station identification is required at least every ten min ...
... A. Station identification is not required if the transmission is less than 15 seconds B. Station identification is not required if the transmission is less than 1 watt C. Station identification is required only if your station can be heard D. Station identification is required at least every ten min ...
RFPD2660 40MHz TO 1003MHz 23dB POWER DOUBLER HYBRID Features
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
Functional Block Descriptions - VLF Designs specializing in Analog
... external switching type high efficiency power supply provides power to the driver and final so that the power output of the radio can be controlled. The radio receivers are modified for low distortion in order to prevent intermodulation between carriers. The receiver outputs are run through external ...
... external switching type high efficiency power supply provides power to the driver and final so that the power output of the radio can be controlled. The radio receivers are modified for low distortion in order to prevent intermodulation between carriers. The receiver outputs are run through external ...
LTC6905.pdf
... maximum frequency according to the regular expression for fOSC. The current source will subtract current from the SET pin to lower the frequency. ...
... maximum frequency according to the regular expression for fOSC. The current source will subtract current from the SET pin to lower the frequency. ...
A thin
... where a is a constant and C S is the stray capacitance of our circuits. The frequency f can be monitored using a digital frequency meter. The electrical blackbox given in this experiment is a parallel plate capacitor. Each plate consists of a number of small teeth of the same geometrical shape. The ...
... where a is a constant and C S is the stray capacitance of our circuits. The frequency f can be monitored using a digital frequency meter. The electrical blackbox given in this experiment is a parallel plate capacitor. Each plate consists of a number of small teeth of the same geometrical shape. The ...
ioSelect DC to Frequency Isolating Signal Conditioner
... The UniPak™ UP475 converts a DC current or voltage signal to a proportional, linear frequency signal providing 1500 Vac isolation between the frequency source, the dc output and power to the UP475. A typical application is totalizing applications, where the total number of pulses counted in a given ...
... The UniPak™ UP475 converts a DC current or voltage signal to a proportional, linear frequency signal providing 1500 Vac isolation between the frequency source, the dc output and power to the UP475. A typical application is totalizing applications, where the total number of pulses counted in a given ...
... frequently occurs in power systems containing saturable transformers and single or morephase switching on the lines for the disjunction of the loads. In this study, the ferroresonance phenomena are considered under the modeling of the West Anatolian Electric Power Network of 380 kV in Turkey. The fe ...
AD8074/AD8075 500 MHz, G = +1 and +2 Triple
... the devices have high peak slew rates, maintaining their bandwidth for large signals. Additionally, the buffers are compensated for high phase margin, minimizing overshoot for good pixel resolution. The buffers also have video specifications that are suitable for buffering NTSC or PAL composite sign ...
... the devices have high peak slew rates, maintaining their bandwidth for large signals. Additionally, the buffers are compensated for high phase margin, minimizing overshoot for good pixel resolution. The buffers also have video specifications that are suitable for buffering NTSC or PAL composite sign ...
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.