VF bandwidth - definitie. Wat is VF bandwidth
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Wat (wie) is VF bandwidth - definitie


VF bandwidth         
VIDEO BANDWIDTH IN TELECOMMUNICATION
Video frequency bandwidth; Video bandwidth; Video frequency
In broadcast television systems, VF bandwidth, video bandwidth or more formally video frequency bandwidth is the range of frequencies between 0 and the highest frequency used to transmit a live television image. The maximum frequency can be found by multiplying three figures; the number of frames (images) per second, number of lines per frame and maximum number of sine periods per line.
video frequency         
VIDEO BANDWIDTH IN TELECOMMUNICATION
Video frequency bandwidth; Video bandwidth; Video frequency
¦ noun a frequency in the range used for video signals in television.
Bandwidth (signal processing)         
DIFFERENCE BETWEEN THE UPPER AND LOWER FREQUENCIES PASSED BY A FILTER, COMMUNICATION CHANNEL, OR SIGNAL SPECTRUM
Essential bandwidth; Signal bandwidth; Frequency bandwidth; Radio bandwidth; Analog bandwidth; RF bandwidth; Radio frequency bandwidth; Spectral bandwidth; Fractional bandwidth; Rayleigh Bandwidth; Relative bandwidth; Ratio bandwidth; Percent bandwidth

Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies. It is typically measured in hertz, and depending on context, may specifically refer to passband bandwidth or baseband bandwidth. Passband bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a band-pass filter, a communication channel, or a signal spectrum. Baseband bandwidth applies to a low-pass filter or baseband signal; the bandwidth is equal to its upper cutoff frequency.

Bandwidth in hertz is a central concept in many fields, including electronics, information theory, digital communications, radio communications, signal processing, and spectroscopy and is one of the determinants of the capacity of a given communication channel.

A key characteristic of bandwidth is that any band of a given width can carry the same amount of information, regardless of where that band is located in the frequency spectrum. For example, a 3 kHz band can carry a telephone conversation whether that band is at baseband (as in a POTS telephone line) or modulated to some higher frequency. However, wide bandwidths are easier to obtain and process at higher frequencies because the § Fractional bandwidth is smaller.