Technical Articles & Guides
Technical guides for commercial satellite operators — written by people who have closed link budgets, debugged TLE staleness issues, and configured CCSDS virtual channels under mission pressure. Subjects include RF link margins, pass prediction accuracy, scheduling conflict handling, Ka-band rain fade, and Doppler autotrack systems.
How to run a link budget when using a shared-antenna GSaaS provider. Covers G/T estimation for 3.7m to 9m apertures, Eb/N0 targets for typical LEO data rates, and margin stacking for multi-hop deployments.
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TLE age degrades pass prediction accuracy. This article quantifies the window shift per day of TLE staleness and recommends refresh cadences for different orbit altitudes and inclinations.
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Multi-spacecraft environments create scheduling conflicts. This guide explains how priority tiers work, when pre-emption is applied, and how to configure contingency windows for time-critical downlinks.
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A practical introduction to CCSDS framing for operators setting up ground segment interfaces. Covers TC and TM frame structures, VCID mapping, and pseudo-randomization configuration in shared-antenna scenarios.
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The build-vs-buy analysis most operators never run. This article compares the 5-year TCO of a dedicated 5.4m antenna installation versus Constellation tier GSaaS for a 3-spacecraft LEO mission with moderate data volumes.
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Ka-band offers high data rates but introduces rain fade risk that can cut into your downlink margin. This article covers three mitigation strategies: geographic site diversity switching, adaptive coding and modulation, and orbital pass planning.
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A 400 km altitude LEO spacecraft has a radial velocity component exceeding 7 km/s at AOS. This article explains how mechanical autotrack systems maintain beam alignment through the full pass arc and how tracking accuracy in millidegrees translates to link margin.
Read article →Orbitvein publishes G/T, EIRP, and tracking accuracy for every station aperture. Run your link budget with real numbers before you commit to a single contact.