Finland’s Transport and Communications Agency, Traficom, has issued a public announcement informing of an unusual spike in GPS interference near the country’s eastern border.
According to reports, the interference isn’t limited to Finland but also affects Poland, Lithuania, Latvia, and the broader Baltic region.
This spoofing is relatively easy because the actual GPS signal is weak. There are very cheap short distancr GPS jammers. The cheapest equipment required to perform GPS spoofing attacks costs a couple of hundred USD (for example HackRF One and computer), while the software to simulate realistic GPS satellite radio signals is generally widely available. Please note that disturbing GPS signals is illegal in very many countries.
Reas more:
Finnish govt agency warns of unusual aircraft GPS interference
https://www.bleepingcomputer.com/news/technology/finnish-govt-agency-warns-of-unusual-aircraft-gps-interference/
https://www.facebook.com/groups/majordomo/permalink/10162357184499522/
108 Comments
Tomi Engdahl says:
https://www.uusiteknologia.fi/2026/01/12/suomessa-suunniteltu-gps-turvaranneke/
Tomi Engdahl says:
Satelliittipaikannuksen häirintä kasvussa – uusia keinoja tarvitaan
https://www.uusiteknologia.fi/2026/01/13/satelliittipaikannuksen-hairinta-kasvussa-uusia-keinoja-tarvitaan/
Satelliittipaikannuksen varmistamiseen tarvitaan Maanmittauslaitoksen selvityksen mukaan nykyistä ajantasaisempaa tilannekuvaa ja tutkimustyötä uusien varajärjestelmien ja suojauksien kehittämiseen. Mukana on linkki selvitykseen.
Tomi Engdahl says:
Gepsi antaa erilaisia lauseita, joissa on erilaiset sisällöt. Niistä pitää valita itselle omiin tarkoituksiin sopivat. Tekoäly vastasi näin:
GPS-lauseet (NMEA 0183 -standardi) ovat tekstipohjaisia tiedonsiirtoformaatteja, joita GPS-vastaanottimet käyttävät sijainti- ja navigointitietojen lähettämiseen. Yleisimpiä lauseita ovat GGA (sijainti ja aika), GLL (maantieteellinen sijainti), RMC (suositellut minimitiedot) sekä VTG (nopeus ja suunta).
Keskeiset NMEA-lauseet (GPS-data):
$GPGGA: Global Positioning System Fix Data (aika, sijainti, korkeus, satelliittien määrä).
$GPGLL: Geographic Position – Latitude/Longitude (leveys- ja pituusaste).
$GPRMC: Recommended Minimum Specific GNSS Data (aika, sijainti, nopeus, suunta).
$GPVTG: Course Over Ground and Ground Speed (todellinen suunta ja nopeus).
$GPGSA: GNSS DOP and Active Satellites (satelliittien tila ja tarkkuus).
$GPGSV: GNSS Satellites in View (näkyvissä olevat satelliitit ja niiden signaalivoimakkuus).
$GPGNS: GNSS Fix Data (parannettu versio GGA:sta, tukee useita satelliittijärjestelmiä).
Nämä lauseet alkavat aina dollarimerkillä ($) ja päättyvät tarkistussummaan, mikä mahdollistaa laitteiden (kuten Garmin-laitteiden karttaplotterit) tarkan navigointitiedon.
Tomi Engdahl says:
https://www.uusiteknologia.fi/2026/02/17/helsingissa-jatkuvia-gps-hairioita-rakennuksista-suojaa/
Tomi Engdahl says:
https://etn.fi/index.php/13-news/18649-satelliittien-kellot-tekevaet-verkoista-haavoittuvia
Tomi Engdahl says:
https://etn.fi/index.php/13-news/18684-satelliittipaikannus-iot-laitteisiin-1-milliwatin-teholla
Tomi Engdahl says:
Sandra Erwin / SpaceNews:
Xona, which aims to build a commercial alternative to GPS by launching a low-Earth orbit satellite constellation, raised a $170M Series C
Xona raises $170 million for satellite navigation network
The company is scaling up production as it looks to build a 258-satellite network to provide positioning, navigation and timing services
https://spacenews.com/xona-raises-170-million-for-satellite-navigation-network/
WASHINGTON — Xona, a California-based startup developing a satellite navigation service, announced March 26 it raised $170 million in a Series C funding round to accelerate deployment of its low-Earth orbit constellation and expand manufacturing capacity.
The round was led by Mohari Ventures Natural Capital, with participation from Craft Ventures, ICONIQ, Woven Capital, NGP Capital, Samsung Next and Hexagon, among others. The company said the capital will support production at a new factory in Burlingame, California, as well as broader constellation buildout.
Xona is building a commercial positioning, navigation and timing (PNT) service, known as Pulsar, designed to operate as an alternative or backup to the Global Positioning System. GPS underpins navigation and timing for both military and civilian systems but has shown vulnerabilities to jamming, spoofing and disruption, particularly in contested environments.
Xona’s satellites will operate in low Earth orbit, broadcasting signals that are stronger than those from GPS satellites in higher orbits. Pulsar is designed to work with existing GPS devices, a shift enabled by Xona’s decision to move from C-band to L-band frequencies after determining that most users lack compatible C-band equipment.
“Compatibility with existing user equipment was critical to scaling,” said Brian Manning, co-founder and chief executive.
Tomi Engdahl says:
https://hackaday.com/2026/03/29/laser-ranging-makes-gps-satellites-more-accurate/