The Tektronix WFM91D is a handheld multifunction monitor that combines waveform, vector, picture, and audio analysis into a single palm-sized instrument. Designed for field and studio broadcast applications, it delivers real-time signal monitoring across NTSC and PAL video standards with 270 Mbps SDI support. Battery-operated and ruggedized for demanding environments, the WFM91D enables rapid troubleshooting, equipment validation, and compliance verification without requiring multiple separate test instruments.
Technical Specifications
Video Standards & Signal Support
• NTSC and PAL video formats
• 270 Mbps SDI systems
• Switchable composite analog or SDI input
• Composite analog video output
Display
• 4-inch (102 mm) color LCD with high-resolution signal visualization
• Composite video output for monochrome waveform, vector, or audio display
Waveform Analysis
• Sweep modes: 1H, 2H, 2F
• Vertical gain: X1, X5, variable
• Filter options: flat, luminance (low pass)
• Alarm threshold: 700 mV waveform excursion detection
• Y’P’bP’r, GBR, Y/C, and composite waveform selection
Vector Mode
• Gain settings: X1, X5, variable
• 360-degree phase rotation control
• Bar amplitude: 75% or 100%
Audio Monitoring
• Analog voltage vs. time display
• Reference levels: Mic, −10, 0, 4, 8 dBu
• Stereo headphone jack and XLR audio connector
Picture Mode
Full-screen, unprocessed video display with waveform-in-picture capability. Waveform, vector, or audio overlays position in any corner.
SDI Signal Analysis
• EDH packet presence/absence detection
• FF/AP CRC errored seconds reporting
• Cable length margin flag indication
– Key Features
• Line select display for production monitoring
• Safe title and safe action markers
• External reference input for timing synchronization
• Durable rugged case with shoulder strap
– Power Options
• NiCd or NiMH battery packs
• Six alkaline C cells
• AC adapter with battery charging capability
• 12 V cigarette lighter adapter
– Compatibility & Integration
NTSC/270 Mbps SDI (525-line) and PAL/270 Mbps SDI (625-line) configurations ensure compatibility with regional broadcast infrastructure.
