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README.md

★ N.I.C. ★

Polaris — Kronos's GNSS front, bought

English · Čeština · Русский

Design-stage concept — nothing built. The figures are verified against the parts' sheets and the parts before a carrier is made.

A bought receiver module, a bought active antenna, and a carrier the size of the module that puts them on Kronos's data connector. No processor, no bus, no address. Polaris is what a station fits when it has no Sputnik: a time-only GNSS receiver on Kronos's TIME IN 1 socket, handing it a lean NMEA stream and a PPS edge. Kronos disciplines and distributes; this is only its source.

   ACGPSA, active antenna, mast-top, on an insulating bracket
        │ coax ≤ 4 m, the station's two DC-pass arresters on it
        ▼ SMA
   ┌────────────────────────────────────┐
   │ POLARIS — the carrier              │
   │   the bought module: NEO-M8N,      │      one Galvani data connector, 12 pins
   │   its bias tee, SMA                │─────────────────────────────────────────▶ KRONOS
   │   ID = GNSS, 33 Ω on the PPS       │      CLK/PPS · GND · TXD · RXD · ID · 3,3 V
   └────────────────────────────────────┘

The receiver never leaves the enclosure (../../core/blocks/gps-pps.md). Only the coax is long, and RF does not care. So Polaris has no barrier to cross, no feed to make and nothing to range: it is a carrier, not a Galvani board and not a unit.

One type, M8N, typed into Kronos and never detected. Kronos checks it at every boot — MON-VER — and configures it to one profile, so a module out of the box and one somebody reconfigured come up alike. UM980 is Sputnik's part and does not appear here — a station with a Sputnik has its time source already.

Its delay is two typed numbers and no measurement. CAB is the coax, metres × ~5 ns/m; INT is the antenna and the module as one constant of the type. Both are subtracted on Kronos, once.

file what is in it
HARDWARE.md what is bought and what it must have, the carrier, the connector pin for pin, the antenna and its mounting, the delay terms
WHY.md the graveyard — the card of our own with its bias tee, the receiver at the mast top, a code of its own, the four types

Licence

Hardware: CERN-OHL-P v2 (../../LICENSE-HW) · Software: MIT (../../LICENSE) — Copyright (c) 2026 NIC — Native Intellect Community