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A Tektronix model 475A portable analog oscilloscope, a typical instrument of the late 1970s Oscilloscope cathode-ray tube, the left square-shaped end would be the blue screen in the upper device when built in. Typical display of an analog oscilloscope measuring a sine wave signal with 10 kHz. From the grid inherent to the screen together with ...
A PC-based oscilloscope is a type of digital oscilloscope which relies on a standard PC platform for waveform display and instrument control. In general, there are two types of PC-based oscilloscopes Standalone oscilloscopes which contain an internal PC platform (PC mainboard) – common with upper mid-range and high-end oscilloscopes
In telecommunications, an eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital signal from a receiver is repetitively sampled and applied to the vertical input (y-axis), while the data rate is used to trigger the horizontal sweep (x-axis). It is so called because, for several types of coding, the pattern ...
Diagram of RS232 signalling as seen when probed by an Oscilloscope for an uppercase ASCII "K" character (0x4b) with 1 start bit, 8 data bits, 1 stop bit: Date: 6 March 2009, 10:25 (UTC) Source: Rs232_oscilloscope_trace.jpg; Author: Rs232_oscilloscope_trace.jpg: Ktnbn; derivative work: Samuel Tardieu (talk) Other versions
The signal-to-noise and distortion ratio (SINAD) is a measure of the quality of a signal from a communications device, often defined as = + + +, where is the average power of the signal, noise and distortion components.
The Bode plotter is an electronic instrument resembling an oscilloscope, which produces a Bode diagram, or a graph, of a circuit's voltage gain or phase shift plotted against frequency in a feedback control system or a filter. An example of this is shown in Figure 10.
This can either be with a specific resolution bandwidth (e.g. −120 dBm @1 kHz RBW), or normalized to 1 Hz (usually in dBm/Hz) e.g. −150 dBm(Hz).This is also called the sensitivity of the spectrum analyzer. If a signal level equal to the average noise level is fed there will be a 3 dB display.
The sensitivity of an electronic device, such as a communications system receiver, or detection device, such as a PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria. In general, it is the signal level required for a particular ...