The Tektronix WFM90D is a handheld waveform, vector, picture, and audio monitor that delivers portable signal analysis for field production, equipment installation, system maintenance, and studio workflows. This self-contained instrument combines a 4-inch color LCD display with multi-format monitoring capability, supporting NTSC and PAL video standards plus 270 Mbps SDI systems. Engineers gain real-time visibility into video signal integrity through picture, waveform, vector, and audio displays—full-screen or picture-in-picture—with color-coded alarm indication when levels exceed 100 IRE (WFM90D).
Technical Specifications
Display
• 4-inch (102 mm) color LCD, high-resolution
• Composite video output (monochrome waveform, vector, or audio; full-screen or windowed)
Video Input
• 1 switchable composite analog or 270 Mbps SDI input
• Input impedance (unterminated): ≥15 kΩ
• Return loss (75 Ω): ≥40 dB (50 kHz to 6 MHz)
• Absolute maximum input voltage: 12 VDC plus peak AC
External Reference
• 1 composite analog input
• Sync amplitude requirement: 143 mV to 4 V
Waveform Mode
• Sweep modes: 1H, 2H, 2F (or 2V)
• Vertical gain: X1, X5, variable
• Filters: Flat, luminance (low pass)
• Signal selection: Y’P’bP’r, GBR, Y/C, Composite
• Alarm threshold: 100 IRE (WFM90D)
Vector Mode
• Gain: X1, X5, variable
• Phase rotation: 360°
• Bar amplitude: 75% or 100%
Audio Mode
• Analog balanced XLR input
• Display: Voltage vs. Time
• Reference levels: Mic, -10, 0, 4, 8 dBu or 0, 4, 8, 12 dBu
• Stereo headphone output (mono input drives both channels)
Internal Reference
• Composite video or black burst
• Sync amplitude: 40 IRE (300 mV PAL) ±6 dB
• Subcarrier regenerator phase shift: 1° across +3 dB to -6 dB gain variation
SDI Reporting
• AutoDetect analog/270 Mbps SDI
• EDH packet presence/absence detection
• FF/AP CRC errored seconds monitoring
• Cable length margin flagging
– Key Features
• Waveform-in-picture mode: Overlay waveform, vector, or audio into any corner of picture display
• Line select display for targeted signal analysis
• Dual standard support: NTSC and PAL
• Field-rugged handheld form factor with integrated battery operation
– Typical Applications
• Field production monitoring and troubleshooting
• Equipment commissioning and signal verification
• System maintenance and compliance verification
• In-house television production workflows
– Compatibility & Integration
The WFM90D accepts composite analog video, 270 Mbps SDI, and analog audio (XLR), providing connectivity across legacy and modern broadcast infrastructures. External black burst or composite sync enables phase-locked operation in multi-camera and synchronized production environments.
