Broadcast Test Patterns
Professional HD patterns for fast video troubleshooting, calibration checks, and signal verification.
Professional iPhone Test Generator
GEN-B
Full High Definition Broadcast Signals Generator. Right from your iPhone.
GEN-B is a professional broadcast test signal generator designed for broadcast engineers, control rooms, production teams, and field troubleshooting. It provides reliable video patterns, reference clips, tone generation, and signal analysis tools to help validate displays, converters, signal paths, and real-world broadcast workflows.
Powered by Modern iPhone Performance
GEN-B is built to take advantage of the power inside today's iPhone hardware. Modern Apple silicon combines advanced processing, GPU-accelerated graphics, professional video handling, high-speed USB-C video output, and efficient media performance inside a device small enough to fit in your pocket.
For broadcast engineers, that power matters. GEN-B uses the iPhone as a portable professional platform for generating Full HD test patterns, reference clips, audio tone, external video output, and signal-analysis tools in real-world field environments.
The result is a compact broadcast test signal system powered by modern mobile hardware — fast, portable, reliable, and ready for engineering work wherever the signal path begins.
Field-Ready Tools
GEN-B Features
Wired Signal Output
Designed for iPhone USB-C video output, giving engineers a portable broadcast test source anywhere.
Tone Generator
Built-in 1 kHz stereo tone with selectable broadcast reference levels for audio testing.
RasterScope & Sweep
Advanced screen-area analysis tools to verify aspect ratio, active video area, and display behavior.
Built for Broadcast Workflows
Professional signal testing in your pocket.
GEN-B combines HD test patterns, reference video clips, tone generation, external output monitoring, RasterScope tools, and Sweep analysis in a simple field-ready app built for professional broadcast workflows.
Designed to help engineers validate the real chain: source, adapter, converter, router, display, and room.
Technical Highlights
Broadcast tools for practical signal checks.
Full HD broadcast test patterns
Reference video clips
1 kHz stereo tone generator
External output status monitoring
RasterScope active-area tools
Sweep display analysis
Broadcast workflow support
Designed for iPhone
GEN-B Engineering Notes
Technical notes from the GEN-B engineering workflow.
When the Visible Image Depends on Invisible Mathematics
Standards, history, algorithms, and the engineering logic behind professional test-pattern generation.
Read Engineering NoteEBU Color Bars: The Hidden Mathematics Behind 75% and 100%
How a vectorscope discrepancy led PBE to replace a fixed normalization value with pattern-aware Rec.709 calibration
Read Engineering NoteSWEEP: When iOS Doesn't Give You EDID, You Build with Geometry
A technical breakdown of how GEN-B SWEEP uses timing, geometry, and a moving reference layer to provide useful display information without relying on raw EDID access.
Read Engineering NoteShowcase
Purpose-built screens for fast technical decisions.
Portable Broadcast Testing
GEN-B turns your iPhone into a professional broadcast test signal source for quick field verification, troubleshooting, and setup checks.
Patterns, Video & Audio
Access HD test patterns, ProRes reference videos, and a built-in 1 kHz tone generator with broadcast-level presets.
Designed for Engineers
Built for broadcast workflows, GEN-B helps verify signal output, display behavior, active video area, and audio reference levels with confidence.
Signal Intelligence
Professional Signal Analysis
Integrated waveform and vectorscope-style analysis tools designed to help engineers validate video signals before transmission.
Oscilloscope Analysis
Monitor generated video levels and waveform characteristics before external video transmission.
Vectorscope Monitoring
Verify chroma positioning, color balance, and Rec.709 compliance.
Broadcast Workflow Integration
Built specifically for engineering, troubleshooting, and field verification tasks.
Workflow Preview
GEN-B in Action
See GEN-B in operation as it navigates through test patterns, video references, audio tone generation, RasterScope tools, and signal analysis features.
Designed by broadcast engineers, GEN-B supports professional display testing workflows across USB-C video output, DisplayPort adapters, external displays, converters, and field signal paths.
Download GEN-B
Ready to test your signal chain?
Download GEN-B and carry a professional broadcast test generator in your pocket.
