The Tektronix 1480R is a high-performance NTSC waveform monitor engineered for precision video signal analysis in broadcast, post-production, and video equipment testing. This rackmount instrument delivers detailed waveform visualization, calibrated magnification to X50, and measurement accuracy for composite video signal integrity verification across professional video systems.
Technical Specifications
Video Input
• NTSC composite video, 75 Ω nominal impedance (AUX input)
• Sync input accepts standard negative-going composite sync (3.5 V to 45 V) or 240 Hz tape recorder pulse (15 V to 45 V, 2.083 ms width, 4.166 ms period)
• PAL sync input accepts 200 Hz tape recorder pulse (15 V to 45 V, 2.5 ms width, 5 ms period)
Display & Analysis
• Waveform display: single lines, dual lines, or full-field overlay modes
• Magnification: calibrated up to X50 with automatic CRT brightening at high magnification
• Timebase foldback for pulse-to-bar ratio measurements and waveform comparison
• Line selector with three modes; supports lines 17 (NTSC) or lines 17/330 (PAL) in dual-field display
• Response modes: FLAT (0–5 MHz ±1%, 5–10 MHz ±1.5%), 4.43 MHz bandpass, 3.58 MHz bandpass
• DC restorer with slow (hum measurement) and fast (hum removal) clamping on back porch or sync tip
Measurement Performance
• Differential phase: 0.25° at any APL
• Differential gain: <0.25% at any APL
• Frequency response: ±1.0% (0–5 MHz), ±1.5% (5–10 MHz) on 1 VFS and 2 VFS ranges
CRT
• Type: 154-0718-00 (NTSC-ruled), 154-0718-01 (CCIR-ruled), 154-0718-05 (blank, optional)
• High writing-rate design for fast-rise, low repetition-rate signal capture
Power & Physical
• Mains: 100, 110, 120, 200, 220, or 240 VAC ±10%, 48–62 Hz
• Power consumption: max 75 W
• Rackmount configuration: 5.25 in height, 19.0 in width
– Key Features
• High-magnification CRT examination with automatic brightness compensation
• Flexible sync input support for NTSC and PAL tape recorder signals
• Selectable bandpass filtering at chroma subcarrier frequencies
• Precision DC restoration for accurate baseline measurement
– Typical Applications
• Video signal integrity analysis in broadcast facilities
• Post-production video quality verification
• Video equipment test and validation
• Composite signal waveform documentation
– Compatibility & Integration
Rackmount (R) configuration fits standard 19-inch broadcast equipment racks. Accepts external sync from standard video and tape recorder sources across NTSC and PAL standards.
