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1.3 What are the technical specifications of the RCA VideoDisc system?




Description

This article is from the RCA SelectaVision VideoDisc FAQ, by tom@cedmagic.com (Tom Howe) with numerous contributions by others.

1.3 What are the technical specifications of the RCA VideoDisc system?

Here are the technical specifications for the RCA VideoDisc System,
derived from various sources:

Disc System: CED 525/60Hz NTSC(US) 625/50Hz PAL(European)
Playback System: Mechanical tracking grooved capacitance
Playback Sensor: Diamond stylus with titanium electrode
Max Playback Time (in 1983) : 63 min/side (NTSC), 75 min/side (PAL)
Video Signal to Noise Ratio: >46dB (CCIR)
Chrominance Signal-to-Noise Ratio: >40dB
Chrominance Bandwidth: 0.5MHz
Luminance Bandwidth: 3.0MHz
Horizontal Resolution: 240-270 lines (magazine reviews)
Audio Signal-to-Noise Ratio: >50dB (USASI), 70 dB (with CX)
Audio Bandwidth: 15KHz
Stereo Separation at 1KHz: 26dB
Dynamic Range Mono: 50dB
Dynamic Range Stereo: 70dB
Audio FM Signal Deviation: +/- 50KHz
Audio Carrier, Mono: 716KHz
Audio Carrier, Additional Stereo: 905KHz
Disc Diameter: 12 inches
Disc material: PVC, carbon-doped
Rotation Rate: 450RPM (525/60Hz), 375RPM (625/50Hz)
Groove Density: 9,541 grooves/inch
Recorded Band: 2.83 inches @ 60 minutes recording
Still Frame Capability: 27,000 frames/side @ 60 minutes


 

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