What are the three requirements for cw transmission?

1 Answer

Answer :

A method of generating oscillations, a method of turning the  oscillations on and off (keying), and an antenna to radiate the  energy.

Related questions

Description : Name three advantages of cw transmission

Last Answer : A high degree of clarity even under severe noise conditions, long-range operation, and narrow bandwidth.

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

Last Answer : Pulse-Doppler.

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.

Description : How does heterodyning distinguish between cw signals?

Last Answer : By giving a different beat frequency for each signal.

Description : What principle is used to help distinguish between two cw signals that are close in frequency?

Last Answer : Heterodyning.

Description : What are the essential components of a cw receiver system?

Last Answer : An antenna, tank circuit for tuning, rectifier for detection, filter to give constant output, and an indicator device

Last Answer : Antenna-to-ground capacitance can cause the oscillator frequency to vary.

Description : State the method used to increase the speed of keying in a cw transmitter.

Last Answer : Machine keying.

Description : What are the three basic requirements for sound?

Last Answer : A source, medium, and detector (receiver).

Description : What are the three requirements for a wave to be propagated?

Last Answer : A source, medium, and detector (receiver).

Description : What are the three requirements for an operational amplifier?

Last Answer : . Very high gain, very high input impedance, very low output

Description : What are the three requirements necessary for oscillations to exist in a circuit?

Last Answer : Amplification, regenerative feedback, and frequency-determining device.

Description : What are the three fundamental requirements of a military communications system?

Last Answer : Reliability, security, and speed.

Description : What are the three requirements for an AM demodulator?

Last Answer : (1) Sensitive to the type of modulation applied, (2) nonlinear, and (3) provide filtering.

Description : Does anyone know when the Vampire Diaries will air on the CW?

Last Answer : It premiered on September 10, 2009. Airs on Thursdays at 8:00PM on the CW network. Last episode was Season 1, Episode 15, titled, A Few Good Men and aired on March 25, 2010. The Next episode ... , Episode 16, titled There Goes The Neighborhood & will air on April 1, 2010. Hope this helps you.

Description : Anyone else mad that the CW is cancelling The Game and Everybody Hates Chris (the black shows) but bringing The Vamapire Diaries and Melrose Place?

Last Answer : No, but the Ice Road Truckers Mash-up on the History Channel makes my heart skip a beat…

Description : what channel is cw on

Last Answer : Try this: http://cwtv.com/thecw/stations

Description : What is the 'CW'?

Last Answer : The newly named channel, the CW, used to be called the WB. It is on the same channel as the WGN news. In Chicago, that would be channel 9. In Florida it would be channel 6. and in Colorado it is on channel 26.

Description : Is Riverdale officially a Netflix or CW show?

Last Answer : Riverdale is an American teen drama television series based on the characters of Archie Comics. The series was adapted for The CW by Archie Comics' chief creative officer Roberto Aguirre-Sacasa, and is produced ... Netflix. So, to answer the question-it's a CW show that can be streamed on Netflix.

Description : What is emission F3F? A. Facsimile B. Modulated CW C. RTTY D. Television

Last Answer : D. Television

Description : With which emission type is the capture-effect most pronounced? A. CW B. FM C. SSB D. AM

Last Answer : B. FM

Description : Which one of the following statements for a dc machine which is provided with inter pole winding (IW) as well as compensating winding (CW) is correct a) Both IW and CW are connected in ... parallel with Armature winding d) CW connected in series but IW is connected in parallel with Armature winding

Last Answer : Ans: Both IW and CW are connected in series with Armature winding

Description : What are three ways of controlling radiated emi during transmission?

Last Answer : a) physical separation of the antenna (b) limiting bandwidth of the antenna (c) use of directional antennas

Description : What three factors must be considered in the transmission of a surface wave to reduce attenuation?

Last Answer : (a) electrical properties of the terrain (b) frequency (c) polarization of the antenna

Description : . What are two of the three physical factors that determine the values of capacitance and inductance of a transmission line?

Last Answer : (1) Type of line used, (2) dielectric in the line, and (3) length of line.

Description : What are the three types of line losses associated with transmission lines?

Last Answer : Copper, dielectric, and radiation.

Description : What are the basic requirements for any splice or terminal connection?

Last Answer : The connection must be both mechanically and electrically as strong as the conductor or device with which it is used

Description : What are the requirements for an integration circuit?

Last Answer : The time constant is long and the output is taken across the capacitor in an RC circuit.

Description : What type of tube best meets the requirements of a modulator switching element?

Last Answer : Thyratron.

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.

Description : What type of tube best meets the requirements of a modulator switching element?

Last Answer : Thyratron.

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.

Description : Training requirements for (2M) repair personnel were developed under guidelines established by what organization?

Last Answer : Chief of Naval Operations (CNO).

Description : When you replace components, identification marks must meet what requirements?

Last Answer : They should be readable from a single point.

Description : Who is responsible for meeting environmental and electrical requirements of a system?

Last Answer : Equipment designers (planners).

Description : In what publication are environmental requirements for equipment defined?

Last Answer : Procurement specifications.

Description : Which of the above requirements is most important?

Last Answer : . Reliability.

Description : V-belt drive transmission system is used when it is designed to achieve a) High speed ratio b) Space requirements are limited c) Both (a) and (b) d) None of the above

Last Answer : c) Both (a) and (b)

Description : State two requirements of transmission line protection. 

Last Answer : Requirements of Transmission Line Protection: 1) Faults on lines should be quickly detected to initiate actions to maintain system stability. 2) For very long lines the protection system must be capable ... backup protection in the event of failure of circuit breaker (nearest to fault) to operate.

Description : requirements or properties of the line supports used in transmission and distribution.  

Last Answer : Following are requirements or properties of the line supports used in transmission and distribution. 1. High mechanical strength:-  It should have high mechanical strength to withstand against - ... . 8. Appearance: It should have good appearance or They must be of pleasing shape

Description : . Why are coaxial lines more efficient at microwave frequencies than two-wire transmission lines?

Last Answer : The electromagnetic fields are completely confined

Description : What two components make up a simple synchro transmission system?

Last Answer : A synchro transmitter and a synchro receiver.

Description : How does temperature inversion affect radio transmission?

Last Answer : It can cause vhf and uhf transmission to be propagated far beyond normal line-of-sight distances.

Description : What is the best type of surface or terrain to use for radio wave transmission?

Last Answer : Radio horizon is about 1/3 farther.

Description : What characteristic is determined by the time required for a voltage wave to travel from the input end of an artificial transmission line to the output end and back again?

Last Answer : Pulse width

Description : The actions of the tr and atr circuits depend on the impedance characteristics of what length of transmission line?

Last Answer : Quarter-wavelength section

Description : What characteristic is determined by the time required for a voltage wave to travel from the input end of an artificial transmission line to the output end and back again?

Last Answer : Pulse width.

Description : Radar altimeters use what type of transmission signal?

Last Answer : Frequency modulated (fm).

Description : What transmission method does NOT depend on relative frequency or target motion?

Last Answer : Pulse modulation.

Description : Is it possible for a transmission line to operate improperly at certain frequencies and properly at others?

Last Answer : Yes, it is quite common.