Up to Rel.6 a modified QPSK is used, combining Control and Data channels on E-DCH. With Rel.7 a higher order modulation is introduced - 16QAM allowing to double the maximum theoretical speeds to 11.6 Mbps.
AM and FM
QPSK
Qam only
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.
Explain with diagram the technique Pulse-width 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.
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 modulation used in telivision for audio signals
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.
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The modulation techniques for video signals include the utilization of the amplitude modulation technique. The amplitude of the carrier wave is made proportional to the video signal voltage. It also utilizes frequency modulation technique.
HSUPA stands for High Speed Uplink Packet Access, and is used by many cell phones to process a large amount of data over a 4G network, for faster access. The HSUPA can get up to speeds as fast as 5.76Mbit/s.