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21 free 20-question certification practice exams. Score yourself by domain, get a personalized study plan mapping your weak areas to specific lessons. No signup to start.

Engineering deep-dives on 5G NR, Core, O-RAN, and 6G research. Written by engineers, for engineers — every concept grounded in 3GPP specs.

3GPP-accurate calculators and vendor config parsers. NR-ARFCN, EARFCN, link budget, PRACH config, Ericsson KGET, Huawei MML, and more.

Hands-on troubleshooting: inspect real PCAP traces, debug node configs and logs, and run a sandbox 5G registration flow. The closest thing to on-the-job practice.

Every 5G/6G, LTE, and core-network acronym you will hit on the job — defined in plain English with 3GPP references.

Straight, side-by-side answers to the comparisons engineers actually Google: NSA vs SA, VoLTE vs VoNR, RSRP vs RSRQ vs SINR, FR1 vs FR2, and more.

Spaced-repetition decks for exam prep. Tap, flip, rate. Built on the same testing-effect research as Anki.