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SPECTRUM COORDINATION NOTES

Notes on ITU filings, BR IFIC, and satellite interference coordination

Practical, no-fluff explainers written for RF engineers and regulatory teams who deal with the ITU coordination process directly.

SAT-A (existing)
SAT-B (new filing)
โ†‘ overlap region โ€” this is what coordination screening looks for

The API/A Surge: Why Manual Interference Checks No Longer Scale

ITU filing volumes have grown roughly 5.5x over the past decade, driven by the space economy boom. Here's why that makes continuous monitoring necessary, not optional.

What Is the ITU BR IFIC, and Why Every Satellite Operator Should Track It

The Bureau's regular publication is where every new satellite frequency filing becomes public. Here's what's actually inside it, and why it matters before you file.

How to Screen for Satellite Interference Before You File with the ITU

A practical walkthrough of frequency-overlap screening: what to check, when to check it, and why doing it before submission saves months later.

API/A vs CR/C: Understanding ITU Satellite Notification Types

The ITU filing process has several distinct notification stages, each with its own purpose and legal weight. A clear reference for what each one means.