MapYourOTDR

Read .sor traces, score link health, compare baselines, run bidirectional and dual-wavelength analysis, and export PDF reports — all on-device, no account.

MapYourOTDR turns your iPhone or iPad into a full OTDR trace analyzer — read, interpret, and report on optical-fiber test data without the instrument's desktop software, and entirely offline.

Open a Telcordia SR-4731 (.sor) file from any OTDR and get an interactive trace you can pinch-zoom, pan, and measure. Drop two markers to read the distance, loss, and attenuation across any span — the way you would on the instrument itself.

WHAT IT DOES

• Decode and plot .sor traces with full acquisition parameters
• Automatic event classification — connectors, splices, gainers, ghosts, fiber end
• A/B two-marker measurement: distance, 2-point loss, and dB/km
• Link health score with a clear pass/fail verdict
• ORL, section attenuation, uniformity, and a full loss-budget breakdown
• Baseline comparison — overlay a commissioning trace and see exactly what changed
• Bidirectional true splice loss — pair both directions and average out the backscatter bias (ITU-T G.650.3 method), with gainers resolved
• Dual-wavelength macrobend detection — compare 1310 vs 1550 nm and flag bends that lose more at the longer wavelength
• On-device PDF test reports, branded with your company and name
• CSV export of the event table

LEARN 23 illustrated, vendor-neutral topics covering dead zones, dynamic range, reflectance, ghosts, gainers, bidirectional testing, PON and splitter testing, multimode limits, OTDR variants, calibration, fiber types, and a field troubleshooting workflow.

TOOLS Field calculators for distance, dead zone, reach from dynamic range, loss budget, optical-vs-route length, splitter loss, and averaging gain.

SIMULATE Generate synthetic traces with seeded faults — connectors, splices, gainers, macrobends, ghost echoes — to practise reading them.

PRIVACY No account, no tracking, no ads. Every trace is parsed, analyzed, and turned into a report on your device. Nothing is uploaded.

Free to use: trace viewer, basic analysis, demo traces, the core simulator, and 7 LEARN topics. A one-time Pro unlock adds the full analysis engine, all 23 topics, every simulator fault, configurable thresholds, and PDF/CSV export.

Built for fiber-optic field technicians and network engineers. Grounded in public standards — Telcordia SR-4731, ITU-T G.650.x / G.652 / G.657, IEC 61746, TIA-568.