Radio Frequency in a sentence

Although radio frequency is a rate of oscillation, the term "radio frequency" or its abbreviation "RF" are used as a synonym for radio – i.e., to describe the use of wireless communication, as opposed to communication via electric wires.

In this circuit, the incoming radio frequency signal from the antenna is mixed with a signal from a local oscillator and converted by the heterodyne technique to a somewhat lower fixed frequency signal called the intermediate frequency (IF).

The frequency mixer does the actual heterodyning that gives the superheterodyne its name; it changes the incoming radio frequency signal to a higher or lower, fixed, intermediate frequency (IF).

In radio transmission, an advantage of frequency modulation is that it has a larger signal-to-noise ratio and therefore rejects radio frequency interference better than an equal power amplitude modulation (AM) signal.

Robinson 1973, p.295 Photography, radio wave interception, magnetic and radio frequency analysis were unable to detect operational British Chain Home radar due to searching in the wrong frequency range.

The 50 / 52 ohm cables are widely used for industrial and commercial two-way radio frequency applications (including radio, and telecommunications), although 75 ohms is commonly used for broadcast television and radio.

Jamming main Radar jamming refers to radio frequency signals originating from sources outside the radar, transmitting in the radar's frequency and thereby masking targets of interest.

Muscovite, the principal mica used by the electrical industry, is used in capacitors that are ideal for high frequency and radio frequency.

One is by the frequency of the electronic signal being amplified; audio amplifiers amplify signals in the audio (sound) range of less than 20 kHz, RF amplifiers amplify frequencies in the radio frequency range between 20 kHz and 300 GHz.

The BIUs contain Radio Frequency (RF) modems which modulate a carrier signal to transmit digital information using 1 MHz of the available bandwidth in the 24 MHz frequency range.

The output of a fixed radio frequency oscillator is mixed with that of an oscillator whose frequency is affected by the variable capacitance between the antenna and the thereminist as that person moves her or his hand near the pitch control antenna.

Total refraction can occur when the collision frequency of the ionosphere is less than the radio frequency, and if the electron density in the ionosphere is great enough.

In fact, the saboteurs appear to have sent simple so-called “radio-stop” commands via radio frequency to the trains they targeted.

In transmitting antennas, it is connected to the transmitter and converts the radio frequency alternating current from the transmitter to radio waves and feeds them to the rest of the antenna, which focuses them into a beam.

Radio frequency main Radio waves generally are utilized by antennas of appropriate size (according to the principle of resonance ), with wavelengths ranging from hundreds of meters to about one millimeter.

The instrument's pitch circuitry includes two radio frequency oscillators set below 500 kHz to minimize radio interference.

Their scanner had detected the radio frequency Popoff's wife Elizabeth was using backstage to broadcast directions and information to a miniature radio receiver hidden in Popoff's left ear.

I’d rather do a radio frequency or microcurrent treatment than penetrate my skin with needles.

In the end, the team obtained 1,519 candidate signals that were not attributable to radio frequency interference.

Professor of Radio Frequency Engineering, University of Manchester.