The Tektronix WFM4000 is a portable waveform monitor delivering multi-format signal analysis for broadcast, production, and field environments. It combines SD-SDI video monitoring with up to 16 channels of embedded audio and AES/EBU digital audio support, offering fully digital processing for drift-free operation and compliance verification across studio and remote deployments.
Technical Specifications
Video Monitoring
• Supported format: SD-SDI (ITU-R BT.601)
• Input type: Serial Digital Video with two passive loopthrough SD-SDI inputs
• Waveform display modes: Parade and Overlay
• Waveform formats: RGB, YPbPr, YRGB, or pseudo-composite
• Vector display with selectable 75% and 100% targets
• Patented Gamut Displays (Arrowhead, Diamond, Split Diamond) with user-selectable compliance thresholds
• CRT-like trace quality with sharp, non-pixelated traces
• Picture thumbnail display with line-select marker and freeze capability
• User-definable Safe Area Graticules
Audio Monitoring
• Embedded audio: 16 channels standard (up to 8 simultaneously)
• AES/EBU digital audio: 1 input for 2 channels at 32 kHz, 44.1 kHz, 48 kHz, 96 kHz, 192 kHz, 24-bit
• Audio level metering resolution: 0.056 dB steps (30 dB scale, full scale to –20 dBFS); 0.20 dB steps (70 dB scale, above –20 dBFS)
• Ballistics: True peak, PPM type 1, PPM type 2, BBC PPM
• Level detection: Mute, clip, user-programmable silence, over
• Accuracy over frequency: –0.5 dB (analog), –0.2 dB (digital) from 20 Hz to 20 kHz, 0 to –40 dBFS sine wave, Peak Ballistic mode
• Audio displays: Bars and Lissajous with front-panel headphone monitoring
Error Management & Timing
• Error log storage: Up to 10,000 events
• Configurable alarms with Ground Closure Interface (GCI) signal output for remote notification
• External reference input support
• Patented Timing Display for facility timing verification
– Key Features
• TandemVu® Display for efficient overlay of Waveform & Vector or Waveform & Lightning displays with Picture Thumbnail
• Fully digital processing ensures accurate, repeatable, drift-free operation
• Line Select feature for line marker placement and analysis
– Connectivity & Integration
• Ethernet port for screenshot and error log download
• USB port (front-panel) for preset and screenshot transfer
• SNMP control for systems integration
– Typical Applications
Broadcast signal monitoring, production quality assurance, remote field verification, camera adjustment workflows, and content compliance logging.
