What is the identifying feature of a Colpitts oscillator?

What is the identifying feature of a Colpitts oscillator?
by

1 Answer

Answer :

Split capacitors.
by

Related questions

In a transistor Colpitts oscillator, C1 = 0.001 µF, C2 = 0.01 µF and L = 5 µH. The frequency of oscillation in

Description : In a transistor Colpitts oscillator, C1 = 0.001 µF, C2 = 0.01 µF and L = 5 µH. The frequency of oscillation in MHz will be (a) 2.37 MHz (b) 10.00 MHz (c) 11.54 MHz (d) 9.09 MHz 

Last Answer : c

What component in a blocking oscillator controls pulse width?

Description : What component in a blocking oscillator controls pulse width?

Last Answer : Transformer.

What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Description : What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Last Answer : Coho lock pulse.

What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Description : What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Last Answer : Frequency stability.

Name a disadvantage of sine-wave oscillator synchronizers.

Description : Name a disadvantage of sine-wave oscillator synchronizers.

Last Answer : It requires additional shaping circuits.

What basic circuits meet the requirements of an externally synchronized master oscillator?

Description : What basic circuits meet the requirements of an externally synchronized master oscillator?

Last Answer : Sine-wave oscillator, single-swing blocking oscillator, and master trigger (astable) multivibrator.

What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Description : What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Last Answer : Frequency stability.

Name a disadvantage of sine-wave oscillator synchronizers.

Description : Name a disadvantage of sine-wave oscillator synchronizers.

Last Answer : . It requires additional shaping circuits.

What basic circuits meet the requirements of an externally synchronized master oscillator?

Description : What basic circuits meet the requirements of an externally synchronized master oscillator?

Last Answer : Sine-wave oscillator, single-swing blocking oscillator, and master trigger (astable) multivibrator.

What type of multivibrator can be used as a radar master oscillator?

Description : What type of multivibrator can be used as a radar master oscillator?

Last Answer : Free-running.

What transmission method uses a stable cw reference oscillator, which is locked in phase with the transmitter frequency?

Description : What transmission method uses a stable cw reference oscillator, which is locked in phase with the transmitter frequency?

Last Answer : Pulse-Doppler.

When a transmitter uses a high-power oscillator to produce the output pulse, what switches the oscillator on and off?

Description : When a transmitter uses a high-power oscillator to produce the output pulse, what switches the oscillator on and off?

Last Answer : High-voltage pulse from the modulator.

What is the polarity of the first alternation of the tank circuit in an emitter-loaded npn pulsed oscillator?

Description : What is the polarity of the first alternation of the tank circuit in an emitter-loaded npn pulsed oscillator?

Last Answer : Negative

Why is a high-gain transistor used in the phase-shift oscillator?

Description : Why is a high-gain transistor used in the phase-shift oscillator?

Last Answer : Because of the losses encountered in the RC networks.

Which components provide the regenerative feedback signal in the phase-shift oscillator?

Description : Which components provide the regenerative feedback signal in the phase-shift oscillator?

Last Answer : Resistor-capacitor networks.

What is the difference between the series-fed and the shunt-fed Hartley oscillator?

Description : What is the difference between the series-fed and the shunt-fed Hartley oscillator?

Last Answer : In the series-fed Hartley oscillator, dc flows through the tank circuit.

What is the main difference between the Armstrong oscillator and the Hartley oscillator?

Description : What is the main difference between the Armstrong oscillator and the Hartley oscillator?

Last Answer : Feedback coil. Armstrong uses a separate coil. Hartley uses a tapped coil.

Which oscillator uses tapped capacitors for feedback?

Description : Which oscillator uses tapped capacitors for feedback?

Last Answer : Colpitts.

Which oscillator uses a tapped inductor for feedback?

Description : Which oscillator uses a tapped inductor for feedback?

Last Answer : Hartley.

Which oscillator uses a tickler coil for feedback?

Description : Which oscillator uses a tickler coil for feedback?

Last Answer : Armstrong.

In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Description : In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Last Answer : Beat frequency.

What characteristic of a gunn oscillator is inversely proportional to the transit time of the domain across the semiconductor?

Description : What characteristic of a gunn oscillator is inversely proportional to the transit time of the domain across the semiconductor?

Last Answer : The frequency.

Why is the tunnel diode loosely coupled to the cavity in a tunnel-diode oscillator?

Description : Why is the tunnel diode loosely coupled to the cavity in a tunnel-diode oscillator?

Last Answer : To increase the stability.

What determines the frequency of a tunnel-diode oscillator?

Description : What determines the frequency of a tunnel-diode oscillator?

Last Answer : The tuned circuit or cavity frequency.

In an fm transmitter, when does an oscillator generate only a steady frequency?

Description : In an fm transmitter, when does an oscillator generate only a steady frequency?

Last Answer : When no modulation is present.

What is the function of the oscillator in a cw transmitter?

Description : What is the function of the oscillator in a cw transmitter?

Last Answer : It generates an rf carrier at a given frequency within required limits.

Name two methods of oscillator keying.

Description : Name two methods of oscillator keying.

Last Answer : Plate keying and cathode keying.

What is the most important feature of the parametric amplifier?

Description : What is the most important feature of the parametric amplifier?

Last Answer : The low-noise characteristic.

rid-leak biasing in effect rectifies the input ac signal. What feature

Description : rid-leak biasing in effect rectifies the input ac signal. What feature

Last Answer : Unequal charge and discharge paths of the coupling capacitor Cc.

Is this oscillator adjustable with a screwdriver, and where is the link to prchase it?

Description : Is this oscillator adjustable with a screwdriver, and where is the link to prchase it?

Last Answer : answer:@XOIIO Probably a question you should direct to the company. The link below should help. http://www.vectron.com/contact/index.htm

WHAT ARE THE EFFECT OF PUTTING APALNT ON AN OSCILLATOR, WOULD IT DIE ?

Description : WHAT ARE THE EFFECT OF PUTTING APALNT ON AN OSCILLATOR, WOULD IT DIE ?

Last Answer : Need Answer

What is an oscillator ? What is an oscillator ?

Description : What is an oscillator ? What is an oscillator ?

Last Answer : Devices that can convert DC power to AC power at a certain frequency are called oscillators.

What is role of LC circuit in the hartley oscillator?

Description : What is role of LC circuit in the hartley oscillator?

Last Answer : Self-tuning feedback

When two semiconductors of p-and ntype are brought in contact, they form p-n junction which acts like a/an – (1) Conductor (2) Oscillator (3) Rectifier (4) Amplifier

Description : When two semiconductors of p-and ntype are brought in contact, they form p-n junction which acts like a/an – (1) Conductor (2) Oscillator (3) Rectifier (4) Amplifier

Last Answer : (3) Rectifier Explanation: P-n junction is a device which flows current in one direction when it is forward biased and when it is reverse biased it doesn't flow any current through it. So it ... (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction.

The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these

Description : The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these

Last Answer : (3) Rectifier Explanation: A rectifier is an electrical device that converts alternating current (AC). which periodically reverses direction, to direct current (DC), which flows in only one ... serving as components of DC power supplies and high-voltage direct current power transmission systems.

Alternating current is converted into direct current by a – (1) Transformer (2) Dynamo (3) Oscillator (4) Rectifier

Description : Alternating current is converted into direct current by a – (1) Transformer (2) Dynamo (3) Oscillator (4) Rectifier

Last Answer : (4) Rectifier Explanation: A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification.

Not a reason for the use of an antenna coupler. A. To make the antenna look resistive B. To provide the output amplifier with the correct load impedance C. To discriminate against harmonics D. To prevent re-radiation of the local oscillator

Description : Not a reason for the use of an antenna coupler. A. To make the antenna look resistive B. To provide the output amplifier with the correct load impedance C. To discriminate against harmonics D. To prevent re-radiation of the local oscillator

Last Answer : D. To prevent re-radiation of the local oscillator

What is the local oscillator (mixer) frequency of the satellite with an uplink frequency in GHz band? A. 3500 MHz B. 4500 MHz C. 2225 MHz D. 2555 MHz

Description : What is the local oscillator (mixer) frequency of the satellite with an uplink frequency in GHz band? A. 3500 MHz B. 4500 MHz C. 2225 MHz D. 2555 MHz

Last Answer : C. 2225 MHz

Which of the following best describes a dip-meter? A. An SWR meter B. A counter C. A variable LC oscillator with metered feedback current D. A field strength meter

Description : Which of the following best describes a dip-meter? A. An SWR meter B. A counter C. A variable LC oscillator with metered feedback current D. A field strength meter

Last Answer : C. A variable LC oscillator with metered feedback current

When measuring a transmitter’s frequency against a suitable standard, the frequency to be measured is taken from the A. oscillator stage B. intermediate amplifier C. buffer stage D. final RF stage

Description : When measuring a transmitter’s frequency against a suitable standard, the frequency to be measured is taken from the A. oscillator stage B. intermediate amplifier C. buffer stage D. final RF stage

Last Answer : D. final RF stage

What establishes the receiver bandwidth? A. RF amplifier B. Mixer C. Local oscillator D. IF amplifier

Description : What establishes the receiver bandwidth? A. RF amplifier B. Mixer C. Local oscillator D. IF amplifier

Last Answer : D. IF amplifier

An FM receiver whose intermediate frequency is 10.7 MHz, is experiencing image channel interference from a station transmitting on 121.1 MHz. If the local oscillator is tracking above, the receiver is tuned to A. 131.8 MHz B. 110.4 MHz C. 142.5 MHz D. 99.7 MHz

Description : An FM receiver whose intermediate frequency is 10.7 MHz, is experiencing image channel interference from a station transmitting on 121.1 MHz. If the local oscillator is tracking above, the receiver is tuned to A. 131.8 MHz B. 110.4 MHz C. 142.5 MHz D. 99.7 MHz

Last Answer : D. 99.7 MHz

One of the following is a possible cause for a slow drift of frequency in a self-exited transmitter oscillator circuits resulting to a poor frequency stability. A. Loose shielding B. Heating of capacitor in the oscillator C. Poor soldered connections D. Faulty capacitor, resistor, tubes or resistors

Description : One of the following is a possible cause for a slow drift of frequency in a self-exited transmitter oscillator circuits resulting to a poor frequency stability. A. Loose shielding B. ... capacitor in the oscillator C. Poor soldered connections D. Faulty capacitor, resistor, tubes or resistors

Last Answer : B. Heating of capacitor in the oscillator

How do you eliminate radio frequency variation of an oscillator transmitter caused by its supply voltage? A. Use new power supply B. Lossen power supply shielding C. Use of regulated power supply D. Use of high capacitor in the supply circuit

Description : How do you eliminate radio frequency variation of an oscillator transmitter caused by its supply voltage? A. Use new power supply B. Lossen power supply shielding C. Use of regulated power supply D. Use of high capacitor in the supply circuit

Last Answer : C. Use of regulated power supply

What consists the front-end circuit of a VHF TV superheterodyne receiver? A. Mixer, RF amplifier and AFC? B. RF amplifier, Band pass filter and mixer C. Local oscillator, mixer and RF amplifier D. Local oscillator, AGC and antenna

Description : What consists the front-end circuit of a VHF TV superheterodyne receiver? A. Mixer, RF amplifier and AFC? B. RF amplifier, Band pass filter and mixer C. Local oscillator, mixer and RF amplifier D. Local oscillator, AGC and antenna

Last Answer : C. Local oscillator, mixer and RF amplifier

One of the FM signal generator control which varies the phase of the modulating voltage applied to the oscillator of the sweep generator A. Band control B. Phase control C. Marker amplitude control D. Sweep output control

Description : One of the FM signal generator control which varies the phase of the modulating voltage applied to the oscillator of the sweep generator A. Band control B. Phase control C. Marker amplitude control D. Sweep output control

Last Answer : B. Phase control

One of the following is a high powered RF ac basic transmitter that has two or more stages, the oscillator stage which determines the frequency opereation and RF amplifier stage orstages that develop the high power output. The purpose of which is to develop a good frequency stability. A. Goldsmith B. MOPA C. Alexanderson D. Hartley

Description : One of the following is a high powered RF ac basic transmitter that has two or more stages, the oscillator stage which determines the frequency opereation and RF amplifier stage orstages that develop the ... to develop a good frequency stability. A. Goldsmith B. MOPA C. Alexanderson D. Hartley

Last Answer : B. MOPA

Type of emission produced by one of the early radio transmitter in trains of damped RF ac waves where its oscillator is coupled to a long wire antenna, normally used in radio telegraph and having sidebands on its carrier. A. Digital emission B. Key emission C. Cycle emission D. Spark emission

Description : Type of emission produced by one of the early radio transmitter in trains of damped RF ac waves where its oscillator is coupled to a long wire antenna, normally used in radio telegraph and having sidebands on its carrier. A. Digital emission B. Key emission C. Cycle emission D. Spark emission

Last Answer : D. Spark emission

The stability of transmitted signal from a simple Hartley oscillator single transmitter which is coupled to and antenna wire affected by ______. A. Chirping of oscillator B. Closer coupling between the oscillator and the antenna. C. Location of antenna D. Material of antenna

Description : The stability of transmitted signal from a simple Hartley oscillator single transmitter which is coupled to and antenna wire affected by ______. A. Chirping of oscillator B. Closer coupling between the oscillator and the antenna. C. Location of antenna D. Material of antenna

Last Answer : B. Closer coupling between the oscillator and the antenna.

One of the following is a possible cause of an abrupt frequency variation in a self exited transmitter oscillator circuits resulting to a poor frequency stability to hold a constant frequency oscillation. A. Heating and expansion of oscillator coil B. DC and RF ac heating of resistors which cause change in values C. Heating of capacitor in the oscillatorD. Loose connections in the oscillator, amplifier, or antenna circuits.

Description : One of the following is a possible cause of an abrupt frequency variation in a self exited transmitter oscillator circuits resulting to a poor frequency stability to hold a constant frequency ... capacitor in the oscillator D. Loose connections in the oscillator, amplifier, or antenna circuits.

Last Answer : D. Loose connections in the oscillator, amplifier, or antenna circuits.