nominal frequency

In practice the nominal frequency is raised or lowered by a specific percentage to maintain synchronization.

The frequencies may not vary more than 1.8% from their nominal frequency, or the switching center will ignore the signal.

Even small deviations from the nominal frequency value would damage synchronous machines and other appliances.

However, many times it is possible to "overclock" the memory to its nominal frequency of 1000 MHz.

S is the ratio of frequency deviation when comparing the load versus the nominal frequency.

The Doppler velocity is computed as a function of the frequency offset from the carrier nominal frequency.

For audio equipment, this is nearly always the nominal frequency range of human hearing, 20 Hz to 20 kHz.

Actual transmission is 17 Hz around the nominal frequency for main line and 100 Hz for metro.

Crossover frequency(ies) (multi-driver systems only) - The nominal frequency boundaries of the division between drivers.

When no uplink was detected, the transponder downlink carrier was generated from a local oscillator at the nominal frequency.

The term is sometimes mistakenly used as synonymous with frequency drift, which is an unintended offset of an oscillator from its nominal frequency.

In electrical engineering, and particularly in telecommunications, frequency drift is an unintended and generally arbitrary offset of an oscillator from its nominal frequency.

Most electric systems use alternating current with a nominal frequency of 50 or 60 Hz (hertz) to deliver energy produced by electrical generators to the electricity consumers.

However, higher level multiplexers receive frames from lower level multiplexers with clocks whose value fluctuates around a nominal frequency value within certain margins of tolerance.

Lets consider a reference clock and a device under test (DUT), and both having a common nominal frequency of 10 MHz.

A sender and receiver operate plesiosynchronously if they operate at the same nominal frequency but may have a slight frequency mismatch, which leads to a drifting phase.

Due to aging and environmental factors (such as temperature and vibration), it is difficult to keep even the best quartz oscillators within one part in 10 of their nominal frequency without constant adjustment.

The Zendmasts of Ruiselede were eight 287 metre high guyed radio masts at Ruiselede, Belgium, built in 1923 for carrying an aerial for VLF transmission (nominal frequency 16.2kHz).

The unnamed government official told ISIS that the nominal frequency for the IR-1 centrifuges at Natanz was 1064Hz, but that Iran kept the actual frequency of the centrifuges lower to reduce breakage.

In very technical language: The nominal frequency or center frequency of various kinds of radio signals with digital modulation - provided that the message bit stream is a random uncorrelated sequence of equally probable ones and zeroes ("marks" and "spaces")

For example, a factory that is lit from a single-phase supply with basic lighting will have a flicker of 100 or 120Hz (depending on country, double the nominal frequency), thus any machinery rotating at multiples of 50 or 60rpm may appear to not be turning, increasing the risk of injury to an operator.

Of course, if two stations transmit on the same frequency, it is practically impossible for the receiver to separate them; so instead of all stations transmitting at the same frequency, each chain was allocated a nominal frequency, 1f, and each station in the chain transmitted at a harmonic of this base frequency, as follows:

In one of these courses of action, Stuxnet begins with a nominal frequency of 1064Hz-which matches the known nominal frequency at Natanz but is above the 1007Hz that Natanz is said to operate-then reduces the frequency for a short while before returning it back to 1064Hz.