UK MOD issues an RFI for "Satellite Signals of Opportunity" (Sat SOO) alt-PNT.
As the brief logged it
Reference 715730558A, published 2026-08-07, responses due 2026-08-24 17:00 UK time; no budget figure disclosed in the notice itself. "Signals of opportunity" PNT derives position/timing from ambient non-cooperative satellite RF (LEO comms constellations, broadcast, etc.) rather than dedicated GNSS — a GPS-denied-environment alternative. This is a NATO-ally MoD budget/procurement instrument exploring alt-PNT independent of GPS, arriving as the only entry on this desk's PNT thread so far (Xona's Pulsar) is a US commercial constellation, not a government buyer signal — worth a primary-document fetch before the Aug 24 RFI window closes. Single-sourced to defenceonline.co.uk so far; no 2nd outlet found this cycle.
Provenance
Logged in the brief of 8 August 2026.
Raw brief ↗ (repository access)