carrier signal

carrier signal

(communications)
A continuous signal of a single frequency capable of being modulated by a second, data-carrying signal. In radio communication, the two common kinds of modulation are amplitude modulation and frequency modulation.
References in periodicals archive ?
Modulation & Demodulation Techniques : ASK , FSK , BPSK , DBPSK Internal Data Generator : Digital Data Data Pattern : 8-Bit , 16-Bit , 32-Bit , 64-Bit Frequency : 2KHz, 4KHz, 8KHz, 16KHz Internal Carrier Generator : Direct Digital Synthesized Carrier Signal : Sine Wave SMD LED Indicators : 24 nos for Digital Data Selection , Data frequency selection & Technique selection Number of Test Points : 40 nos.
Each location is provisioned based on local carrier signal strength, guaranteeing uptime and LTE coverage across all national LTE providers.
During three flybys of Enceladus, between April 2010 and May 2012, the scientists collected extremely precise measurements of Cassini's trajectory by tracking the spacecraft's microwave carrier signal with NASA's Deep Space Network.
However, the take-off and landing of J-15 fighter planes from the refurbished carrier signal that Beijing is taking steady strides towards delivering airpower from sea.
And QAM, or quadrature amplitude modulation, is an analog and digital modulation scheme that conveys data by changing some aspect of a carrier signal, or wave, (usually a sinusoid) in response to a data signal.
The device's simple operation and precision signal strength measurements allow anyone to pick the best carrier signal without the need for multiple devices, heavy laptops or complicated software and dongles.
Other offerings launched in the market last year included Zaxcom's TRX900LTS (LTS), a recording wireless transmitter that supports two microphone inputs and independent transmission of two isolated audio channels, all on a single RF carrier signal.
Demodulator--The demodulator stage demodulates the carrier signal from the information signal.
The new modem enhances the data transfer and guidance capabilities of the Trimble FmX integrated display as well as the CFX-750 touch screen display, putting the Connected Farm within reach of anyone who has a reliable wireless data carrier signal.
In sine-triangle PWM, a common triangular carrier signal is compared with the three phase modulating sinusoidal signals of required magnitude and frequency to generate PWM signals.
The LCD display screen provides information such as caller ID, carrier signal strength, or last calls received, in large well-contrasted digits on an easy to read display.
At 10pm the giant radio telescope at Jodrell Bank, Cheshire, scans Mars for two-and-a-half hours in the hope it will pick up a faint carrier signal direct from the probe's own transmitter, but nothing is recorded.

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