Laboratory Exercise 5
... 3 (a) About AM radio An AM (amplitude modulation) radio signal is a superposition of a high frequency wave (100’s to 1000’s of kHz) called a carrier wave (this is the “RF” signal) and a signal in the audio frequency range (only about 100 Hz to 7.5 kHz for the AM band in Australia). The carrier frequ ...
... 3 (a) About AM radio An AM (amplitude modulation) radio signal is a superposition of a high frequency wave (100’s to 1000’s of kHz) called a carrier wave (this is the “RF” signal) and a signal in the audio frequency range (only about 100 Hz to 7.5 kHz for the AM band in Australia). The carrier frequ ...
Lecture 7 Overview - Home - University of Delaware Dept
... is usually small (typically 100Hz) to ensure that the gain is <1 at a phase shift of 180º • Closed-loop gain (gain of amplifier with feedback) begins dropping when open loop gain approaches RF/RS (in the case of the inverting amp) • Cut off frequency will be higher for lower closed-loop gain circuit ...
... is usually small (typically 100Hz) to ensure that the gain is <1 at a phase shift of 180º • Closed-loop gain (gain of amplifier with feedback) begins dropping when open loop gain approaches RF/RS (in the case of the inverting amp) • Cut off frequency will be higher for lower closed-loop gain circuit ...
Basic AC
... When two waves are in phase, they have their peak values at the same time. YES / NO ...
... When two waves are in phase, they have their peak values at the same time. YES / NO ...
Experiment 3 - Department of Electrical and Electronics Engineering
... are uses for both. The TV channel is 6 MHz wide in order to contain the picture, sound, and color information. A broad-band circuit is necessary to pass all these frequencies. In AM radio you only want a signal station to be received so narrow-band tuning is required. The Q of a resonant circuit is ...
... are uses for both. The TV channel is 6 MHz wide in order to contain the picture, sound, and color information. A broad-band circuit is necessary to pass all these frequencies. In AM radio you only want a signal station to be received so narrow-band tuning is required. The Q of a resonant circuit is ...
SGA5286Z 数据资料DataSheet下载
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
E4400A Analog RF Signal Generator, 250 kHz to 1000 MHz
... Modulation Types: Ext1: FM, PM, AM, and Burst Envelope Ext2: FM, PM, AM, and Pulse Simultaneous Modulation All modulation types may be simultaneously enabled, except: FM with PM, AM with Burst. AM, FM, and PM can sum simultaneous inputs from any two sources (INT,EXT1, and EXT2.) Any given source (IN ...
... Modulation Types: Ext1: FM, PM, AM, and Burst Envelope Ext2: FM, PM, AM, and Pulse Simultaneous Modulation All modulation types may be simultaneously enabled, except: FM with PM, AM with Burst. AM, FM, and PM can sum simultaneous inputs from any two sources (INT,EXT1, and EXT2.) Any given source (IN ...
Module 2 – Signals & Waves C2
... mixture of multiple frequencies. • When this complex mixture is embedded on a carrier, two sidebands are created that are mirror images. ...
... mixture of multiple frequencies. • When this complex mixture is embedded on a carrier, two sidebands are created that are mirror images. ...
SIMPLE LOW PASS AND HIGH PASS FILTER
... The frequencies 1 and 2 at which the output power drops to one half of its values at the resonant frequency are called the half-power frequencies. At these frequencies also known as cutoff frequencies or corner frequencies, the output voltage is | Vo ( c ) | 0.707 | Vo ( o ) | . This circuit w ...
... The frequencies 1 and 2 at which the output power drops to one half of its values at the resonant frequency are called the half-power frequencies. At these frequencies also known as cutoff frequencies or corner frequencies, the output voltage is | Vo ( c ) | 0.707 | Vo ( o ) | . This circuit w ...
Home Work Solutions 11
... d2q/dt2 < 0 represents a “deceleration” of the charge-buildup process on the capacitor (since it is approaching its maximum value of charge). In this way we can “check” the signs in Eq. 31-11 (which states q/C = L d2q/dt2) to make sure we have implemented the loop rule correctly. 11-2 A series cir ...
... d2q/dt2 < 0 represents a “deceleration” of the charge-buildup process on the capacitor (since it is approaching its maximum value of charge). In this way we can “check” the signs in Eq. 31-11 (which states q/C = L d2q/dt2) to make sure we have implemented the loop rule correctly. 11-2 A series cir ...
Resonance in RLC Circuits ~
... • Study the phenomenon of resonance in RLC circuits. • Determine the resonant frequency and bandwidth of the given network using a sinusoidal response. Equipment: Function Generator Resistor ( 150 Ω) Capacitor (1 μF) Inductor (4.0 mH) Theory: A resonant circuit, also called a tuned circuit c ...
... • Study the phenomenon of resonance in RLC circuits. • Determine the resonant frequency and bandwidth of the given network using a sinusoidal response. Equipment: Function Generator Resistor ( 150 Ω) Capacitor (1 μF) Inductor (4.0 mH) Theory: A resonant circuit, also called a tuned circuit c ...
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 ...
1 - Rose
... (b) At very low frequencies, this “real” inductor acts approximately like: (1) A resistor of value Rw (2) An inductor of value Lw (3) a capacitor of value CL (c) At very high frequencies, this “real” inductor acts approximately like: (1) A resistor of value Rw (2) An inductor of value Lw (3) a capac ...
... (b) At very low frequencies, this “real” inductor acts approximately like: (1) A resistor of value Rw (2) An inductor of value Lw (3) a capacitor of value CL (c) At very high frequencies, this “real” inductor acts approximately like: (1) A resistor of value Rw (2) An inductor of value Lw (3) a capac ...
SBB4089Z 数据资料DataSheet下载
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
Chapter 8 - UniMAP Portal
... – Selectivity in a receiver is obtained by using tuned circuits and/or filters. – LC tuned circuits provide initial selectivity. – Filters provide additional selectivity. – By controlling the Q of a resonant circuit, you can set the desired selectivity. – The optimum bandwidth is one that is wide en ...
... – Selectivity in a receiver is obtained by using tuned circuits and/or filters. – LC tuned circuits provide initial selectivity. – Filters provide additional selectivity. – By controlling the Q of a resonant circuit, you can set the desired selectivity. – The optimum bandwidth is one that is wide en ...
Superheterodyne receiver
In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original radio carrier frequency. It was invented by US engineer Edwin Armstrong in 1918 during World War I. Virtually all modern radio receivers use the superheterodyne principle. At the cost of an extra frequency converter stage, the superheterodyne receiver provides superior selectivity and sensitivity compared with simpler designs.