What are the two teletypewriter modes of operation?

1 Answer

Answer :

Synchronous and nonsynchronous

Related questions

Description : What is the main use of a radio teletypewriter?

Last Answer : High speed automatic communications across ocean areas.

Description : The field arrangements in waveguides are divided into what two categories to describe the various modes of operation?

Last Answer : Transverse electric (TE) and transverse magnetic (TM).

Description : What are the five most prominent communications modes of operation?

Last Answer : Simplex, half-duplex, semiduplex, duplex, and broadcast.

Description : What four fiber properties determine the number of modes propagating in a multimode gradedindex fiber?

Last Answer : Numerical aperture (NA), relative refractive index difference ( D), profile parameter (α), and normalized frequency (V).

Description : Debunching of the electron bunches in the higher modes of a reflex klystron has what effect on output power?

Last Answer : Power is reduced.

Description : What are the transmitter operating modes?

Last Answer : Lsb, usb, isb, AM, cw, fsk.

Description : What are the tuning modes for the coupler group discussed?

Last Answer : Automatic, semiautomatic, and manual.

Description : A mode filter is a device that attenuates specific modes propagating in the core of an optical fiber. What mode propagating along single mode fibers do mode filters eliminate?

Last Answer : Second-order mode.

Description : Does underfilling a multimode optical fiber excite mainly high-order or low-order modes?

Last Answer : Low-order modes.

Description : Modes of a light pulse that enter the fiber at one time exit the fiber at different times. This condition causes the light pulse to spread. What is this condition called?

Last Answer : Modal dispersion.

Description : The number of modes propagated in a multimode fiber depends on core size and numerical aperture (NA). If the core size and the NA decrease, will the number of modes propagated increase or decrease?

Last Answer : Decrease.

Description : The fiber's normalized frequency (V) determines how many modes a fiber can support. As the value of V increases, will the number of modes supported by the fiber increase or decrease?

Last Answer : Increase.

Description : As the core and cladding modes travel along the fiber, mode coupling occurs. What is mode coupling?

Last Answer : Mode coupling is the exchange of power between two modes.

Description : Modes that are bound at one wavelength may not exist at longer wavelengths. What is the wavelength at which a mode ceases to be bound called?

Last Answer : Cutoff wavelength

Description : Low-order and high-order modes propagate along an optical fiber. How are modes determined to be low-order or high order modes?

Last Answer : Depends on the bending caused by the velocity difference of the wave traveling through different mediums

Description : Assume a two address format specified as source, destination. Examine the following sequence of instruction and explain the addressing modes used and the operation done in every instruction?

Last Answer : 1. Move (R5) +, R0 2. Add (R5) +, R0. 3. Move (R0), (R5) 4. Move 16(R5), R3 5. Add #40, R5

Description : What are modes of operation of electrical drives?

Last Answer : Steady state Acceleration including starting Deceleration including stopping

Description : What is centralized SPC, what are its modes of operation; explain the working of any one of these?

Last Answer : In centralized control, all the control equipment is replaced by a single processor which must be quite powerful. It must be capable of processing 10 to 100 calls per second, depending on ... The shared secondary storage need not be duplicated and simple unit level redundancy would suffice.  

Description : In 8255, under the I/O mode of operation we have __ modes. Under which mode will have the following features i) A 5 bit control port is available. ii) Three I/O lines are available at Port C. a) 3, Mode2 b) 2, Mode 2 c) 4, Mode 3 d) 3, Mode 2

Last Answer : a) 3, Mode2

Description : With neat sketch explain four modes of operation of a TRIAC? 

Last Answer : Modes of operation of a TRIAC: There are four different operating modes of TRIAC:  1) MT2 and gate are positive with respect to terminal MT1(Mode1) : Here terminal MT2 is positive ... junction P2-N2 is forward biased, current carriers are injected and therefore, the TRIAC is turned on. 

Description : What two primary items determine the class of operation of an amplifier?

Last Answer : The amount of bias and the amplitude of the input signal

Description : Silica (pure glass) fibers are used because of their low intrinsic material absorption at the wavelengths of operation. This wavelength of operation is between two intrinsic absorption regions. What are these two regions called? What are the wavelengths of operation for these two regions?

Last Answer : Ultraviolet absorption region (below 400 nm) and infrared absorption region (above 2000 nm).

Description : What amplifier class of operation is the most inefficient but has the least distortion?

Last Answer : Class A.

Description : Once ionization has occurred in a thyratron, what control does the control grid have over the tube’s operation?

Last Answer : None.

Description : What type of clock is used when more than one operation is to be completed during one clock cycle?

Last Answer : . A multiphase clock.

Description : What is the sign of operation for the X-OR gate?

Last Answer : XOR

Description : What is the key to FET operation?

Last Answer : Effective cross-sectional area of the channel.

Description : What type of bias is required for proper operation of a photodiode?

Last Answer : Reverse bias.

Description : The TRIAC is similar in operation to what device?

Last Answer : SCR

Description : What type of diagram is the most useful in learning the overall operation of a system?

Last Answer : A schematic diagram.

Description : What is the effect on magnetron operation if the magnetic field strength is too high?

Last Answer : The magnetron will not oscillate.

Description : What is the effect on magnetron operation if the magnetic field strength is too high?

Last Answer : The magnetron will not oscillate.

Description : What are the required radar inputs for proper indicator operation?

Last Answer : Triggers, video, and antenna information.

Description : Tracking radar searches a small volume of space during which phase of operation?

Last Answer : Acquisition.

Description : What radar subsystem supplies timing signals to coordinate the operation of the complete system?

Last Answer : Synchronizer.

Description : Quality fiber-end preparation is essential for proper system operation. What properties must an optical fiber-end face have to ensure proper fiber connection?

Last Answer : Be flat, smooth, and perpendicular to the fiber axis.

Description : In single mode operation, the value of the normalized frequency (V) should remain near the 2.405 level. If the value of V is less than 1, do single mode fibers carry a majority of the power in the core or cladding material?

Last Answer : Cladding material.

Description : For efficient operation, should a detector have a high or low responsivity at the operating wavelength?

Last Answer : High.

Description : Describe the operation of an optical detector

Last Answer : It is a transducer that converts an optical signal into an electrical signal. It does this by generating an electrical current proportional to the intensity of incident optical radiation.

Description : A computer that is designed to perform a specific operation and usually satisfies the needs of a particular type of problem, is said to be what type of computer?

Last Answer : Special-purpose.

Description : The underlying principle of operation of the parametric amplifier is based on what property?

Last Answer : Reactance.

Description : Why is the pi mode the most commonly used magnetron mode of operation

Last Answer : Greater power output.

Description : If the constant-speed electrons in a reflex klystron remain in the repeller field for 1 3/4 cycles, what is the mode of operation?

Last Answer : Mode 2.

Description : What is the basic principle of operation of a klystron?

Last Answer : Velocity modulation

Description : What limits the tuning range around the center frequency of a reflex klystron in a particular mode of operation?

Last Answer : The half-power points of the mode.

Description : How do the tape guides on a tape reeling system protect the tape from damage during operation?

Last Answer : They keep the tape straight with respect to both the supply and take-up reels and the magnetic heads.

Description : The suppressor grid is added to a tetrode to reduce what undesirable characteristic of tetrode operation?

Last Answer : Secondary emission.

Description : Operation of an accelerometer is based on what physical property?

Last Answer : Inertia.

Description : What gyro characteristic provides the basis of the operation of a rate gyro?

Last Answer : Precession.

Description : Which dispersion mechanism (material or waveguide) is a function of the size of the fiber's core relative to the wavelength of operation?

Last Answer : Waveguide dispersion.