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If we discount on/off switching af a carrier (c.w.), for instance as used for the transmission of Morse, then it must be m.c.w. in which an a.m. carrier is keyed on and off.

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What is function of amplitude modulation?

Amplitude modulation (AM) is a method used in telecommunications to vary the strength (amplitude) of a carrier signal in proportion to the waveform being sent. This modulation technique allows the transmission of audio or data signals through changes in the amplitude of the carrier signal. AM is commonly used in broadcast radio to carry audio signals.


What modulation technique used in tv broadcasting?

AM and FM


What is the modulation technique used in pdh as nec equipment?

QPSK


What is the modulation technique used in microwave sdh?

Qam only


What is adaptive modulation?

Adaptive delta modulation is a analog-to-digital and digital-to-analog conversion technique which is primarily used for voice transmission data and can be used for multiple purposes.


What is delta modulation?

Adaptive delta modulation is a analog-to-digital and digital-to-analog conversion technique which is primarily used for voice transmission data and can be used for multiple purposes.


What Technique is used 2 transmit audio signals of television?

what is the modulation used in telivision for audio signals


What is Adaptive delta modulation?

Adaptive delta modulation is a analog-to-digital and digital-to-analog conversion technique which is primarily used for voice transmission data and can be used for multiple purposes.


What is the difference between the AM modulation and ASK modulation?

This is hard to explain. AM means amplitude modulation, while ASK is amplitude-shift keying. AM is usually analog as it is modulated based on the strength of the signal, though you can use it to send a digital signal. ASK represents digital data as variations in the amplitude of a carrier wave. Any digital modulation technique will represent the data using a finite number of different signals. While AM is used mostly for radio and television, ASK is used for telegraph signals, transmission across telecommunications equipment, and fiber optics.


What refers to waves continuously varying in strength and quality?

This refers to the concept of modulation, where a carrier wave's strength or characteristics are modified to convey information. Modulation techniques include amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM). These techniques are commonly used in telecommunications for transmitting signals over long distances.


Which modulation technique is used in gsm?

GSM uses GMSK modulation scheme. GPRS also uses GMSK modulation scheme. EDGE and UMTS uses 8-PSK.


An electric current that is varied to represent information is what?

An electric current that is varied to represent information is called a modulated current. This modulation can take various forms, such as amplitude modulation (AM), frequency modulation (FM), or pulse modulation, and is commonly used in telecommunications to transmit data over long distances efficiently.