Many really cool things in this vid
November 4, 2025 at 10:53 AM
Many really cool things in this vid
A recap. Satellite transmits a clock code and trajectory, based on detailed measurements on the difference vs a local clock, distances to satellites can be calculated. There are much more to this to get a precise measurement, adjustment for difference in speed of light through iono and troposphere,
October 30, 2025 at 8:13 PM
A recap. Satellite transmits a clock code and trajectory, based on detailed measurements on the difference vs a local clock, distances to satellites can be calculated. There are much more to this to get a precise measurement, adjustment for difference in speed of light through iono and troposphere,
Data is published in RINEX format, essentially containing the time codes for signals, measured signal strength, doppler shift, this can then be analyzed in many ways. Here we see signal strength vs angle over horizon. Should normally follow fairly well
October 30, 2025 at 8:13 PM
Data is published in RINEX format, essentially containing the time codes for signals, measured signal strength, doppler shift, this can then be analyzed in many ways. Here we see signal strength vs angle over horizon. Should normally follow fairly well
This is Hoburgen data. Signal strength is OK, satellites supposedly over horizon. Code residuals are very consistent for a solution
October 30, 2025 at 6:29 PM
This is Hoburgen data. Signal strength is OK, satellites supposedly over horizon. Code residuals are very consistent for a solution
The shooting lines happens when solved for the satellites marked below. Plotted are "code residuals", ie difference from calculated time distance vs calculated distance based on satellite trajectory and known position of station. It should stay at zero, but time signal is shooting off
October 30, 2025 at 6:16 PM
The shooting lines happens when solved for the satellites marked below. Plotted are "code residuals", ie difference from calculated time distance vs calculated distance based on satellite trajectory and known position of station. It should stay at zero, but time signal is shooting off
I revisited June 14, known noisy day, with new take on resolvers. These are Rinex data from stations Hoburgen, Bornholm, Gdansk and Braniewo. Note the shooting lines, these are valid solutions, but diverging from station
October 30, 2025 at 6:14 PM
I revisited June 14, known noisy day, with new take on resolvers. These are Rinex data from stations Hoburgen, Bornholm, Gdansk and Braniewo. Note the shooting lines, these are valid solutions, but diverging from station
What we see here is signal strength per satellite over time as it is panning over the sky. The disruption is when the spoofer takes over, we do not see the characteristic increase/decrease when satellite passes, the spoof signal is irregular
October 28, 2025 at 2:05 PM
What we see here is signal strength per satellite over time as it is panning over the sky. The disruption is when the spoofer takes over, we do not see the characteristic increase/decrease when satellite passes, the spoof signal is irregular
I was having a look at traffic gps data for central Moscow. It is really crazy, wherever you go, you will be teleported. But here are some highlighted hotspots. Red means high jam ratio
October 27, 2025 at 8:59 PM
I was having a look at traffic gps data for central Moscow. It is really crazy, wherever you go, you will be teleported. But here are some highlighted hotspots. Red means high jam ratio
Det är en märklig misogyni som letat sig in i Dagens Nyheter
October 25, 2025 at 1:09 PM
Det är en märklig misogyni som letat sig in i Dagens Nyheter
President Zelenskyj in Gripen, together with PM Kristersson and Marcus Wandt, astronaut and fighter test pilot
October 22, 2025 at 4:42 PM
President Zelenskyj in Gripen, together with PM Kristersson and Marcus Wandt, astronaut and fighter test pilot
He is clearly on the aggressor side, he wants to take over the country unopposed
October 21, 2025 at 10:03 AM
He is clearly on the aggressor side, he wants to take over the country unopposed
Skidorna skall såklart monteras på rack
Men det var väl Jon Olssons signature car?
Men det var väl Jon Olssons signature car?
October 20, 2025 at 5:15 PM
Skidorna skall såklart monteras på rack
Men det var väl Jon Olssons signature car?
Men det var väl Jon Olssons signature car?
Pro tip: baka ditt eget korvbröd där ute
October 15, 2025 at 9:14 AM
Pro tip: baka ditt eget korvbröd där ute
Mina bästa bra att ha-tips för passkytten
Stekpanna, förgyller lunchen
Handkikare
Spritbrännare när man inte har möjlighet för brasa
Snöre för att koppla hund
Liggunderlag, vikt. Stå på om riktigt kallt
Powerbank
Stekpanna, förgyller lunchen
Handkikare
Spritbrännare när man inte har möjlighet för brasa
Snöre för att koppla hund
Liggunderlag, vikt. Stå på om riktigt kallt
Powerbank
October 11, 2025 at 11:31 AM
Mina bästa bra att ha-tips för passkytten
Stekpanna, förgyller lunchen
Handkikare
Spritbrännare när man inte har möjlighet för brasa
Snöre för att koppla hund
Liggunderlag, vikt. Stå på om riktigt kallt
Powerbank
Stekpanna, förgyller lunchen
Handkikare
Spritbrännare när man inte har möjlighet för brasa
Snöre för att koppla hund
Liggunderlag, vikt. Stå på om riktigt kallt
Powerbank
This is interesting
October 11, 2025 at 10:28 AM
This is interesting
Förberedelser inför älgjaktsveckan, det är ingen liten operation
October 11, 2025 at 9:07 AM
Förberedelser inför älgjaktsveckan, det är ingen liten operation
Ducting is a very seasonal effect, but one idea may be that they are targeting tropospheric scatter, firing fairly high energy signals at sky that will distribute at high ranges, ”raining down” on receivers
October 5, 2025 at 5:23 PM
Ducting is a very seasonal effect, but one idea may be that they are targeting tropospheric scatter, firing fairly high energy signals at sky that will distribute at high ranges, ”raining down” on receivers
Viktigt att prompta sin ai
October 5, 2025 at 1:34 PM
Viktigt att prompta sin ai
This guy, casually strolling with a bag in hand, during the time of a drone strike against the refinery
October 3, 2025 at 9:01 AM
This guy, casually strolling with a bag in hand, during the time of a drone strike against the refinery
Quisling var en quisling. Men det finns fler
October 3, 2025 at 5:25 AM
Quisling var en quisling. Men det finns fler
Remember, do not get too carried away and post images of own defense positions, working drone defense etc. Can soon get serious
October 1, 2025 at 8:10 AM
Remember, do not get too carried away and post images of own defense positions, working drone defense etc. Can soon get serious
Traffic in Ust-Luga region. GNSS disturbance at the oil terminal hit a month ago. The Kingisepp jammer may be located either at the Fosforit plant, or in center, close to fuel depot and railway. I do not know if the Kyorstovo air defence site is in play here, but notable it is in vicinity
October 1, 2025 at 5:17 AM
Traffic in Ust-Luga region. GNSS disturbance at the oil terminal hit a month ago. The Kingisepp jammer may be located either at the Fosforit plant, or in center, close to fuel depot and railway. I do not know if the Kyorstovo air defence site is in play here, but notable it is in vicinity
I think this one is pretty cool as well (Giraffe 1X)
September 29, 2025 at 8:43 PM
I think this one is pretty cool as well (Giraffe 1X)