DESCRIPTION: The NTP 277-500 is a unique combination of a stereo monitor oscilloscope and a compatibility meter in one instrument. It provides the sound engineer with an easy-to-read graphic representation of the phase and amplitude relationship between the left and right channels of a stereo signal.
The stereo monitor oscilloscope, essentially an X-Y oscilloscope, displays the left/right balance as well as the stereo width of the signal. A complex stereo signal, which contains mono as well as stereo information, causes an approximately elliptical pattern to be displayed in the up-down direction. The left/right balance is also clearly indicated as the pattern will tilt towards "L" or "R" if the balance is not correct.
The transformer-coupled input amplifiers are provided with tracking Automatic Gain Control. Thus, a full-screen trace is obtained, even for weak input signals. The built-in compatibility meter is also displayed on the CRT. The stereo-to-mono compatibility is displayed on a horizontal scale ranging from +1 to -1 corresponding to phase differences from 0° to 180°. Individual brightness adjustments are available on the front panel, enabling the engineer to set the light intensity of the monitor oscilloscope and the compatibility meter separately. To prevent damage to the tube, the intensity is automatically reduced when no input signal is present.
FEATURES:
- Unique combination of stereo monitor oscilloscope and compatibility meter.
- Fully self-contained, available for 24 V DC or mains supply.
- Large 7 cm CRT display.
- Selectable Automatic Gain Control-LED or linear operating deflection amplifiers.
- Front-panel adjustable brightness.
- Very compact design.
- Available for panel-mount or standalone use, with AC supply.
- Front design and size match the 277-100 Peak Programme Meters.
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