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grandparoy2.bsky.social
🇨🇦🇺🇦Grandfather, OSINT of Ukrainian and Russian Telegram: FPVs, drone munitions, EW, landmines. ❤️my family (grandchildren!), reading, and Kaja Kallas.
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A Ukrainian soldier took cover in some brush to hide from a Russian UGV. He glanced down, and saw at his feet a PFM-1 “Petal” anti-personnel landmine almost hidden in the leaves.

A Ukrainian company has developed an electronic module that uses time of flight (ToF) for navigation independent of GPS. Their system measures the travel time of radio signals between a drone, a ground station, and two beacons. 1/

The Russians claim that some of their newly installed FPV flight controllers have been sabotaged. Speedybee FCs have been somersaulting the drones on takeoff and burning out the capacitors. The FCs do function normally after reflashing.

A big Ukrainian UGV presented at “Defense Tech Innovation Forum 2025” by the 3rd Separate Assault Brigade has a takeoff platform for heavy “Vampire” drones. t.me/VIUKSIDV/51502 1/

Serhii “Flash” reports that fundraising for the “Whoover 2” drone detector has been very successful. “These devices will definitely save someone's life and someone's father, son, husband or brother will return home alive. They will return thanks to you.”

A Russian describes how Ukraine destroys their EW jammers, and that Russia does not have that capability. “How does the enemy combat our jammers? Elementary: - Takes direction finding using EW. - Sends a copter for additional reconnaissance on a non-standard frequency, … 1/

A Ukrainian cow inspecting wrecked Russian vehicles along an occupied road ignores a greeting from a Russian soldier.

A compact prototype Ukrainian UGV from the 3rd Assault Brigade uses TM-62M anti-tank landmines for wheels.

Ukrainian EW expert Serhii “Flash” wants installation instructions for an update that he has written for the “Sugar” drone detector to be publicized. It allows detection of the Mavic 2.4GHz band at a range of 200-400m that indicates a light bomber is close. 1/

FAFO. Russians get too curious about the latest Ukrainian drone-dropped improvised anti-personnel landmines, and someone steps on one. t.me/Bull2022/4651

In this downed Russian Shahed-136, the jam-resistant “Cometa-M” CRPA satellite navigation system is just visible under a radio-transparent hatch. t.me/war_home/3978

Is this device: - a VHF radio direction finder antenna? -a feeder for Russian donkeys? -a Faraday cage? -an skeleton avatar cage from “Wolfenstein”? -a decoy antenna? -something else?

A 4-barrel Russian “Osoyed-D” recoilless shotgun FPV, which they claimed is autonomous. Apparently the FPV finds and attacks all by itself after ground detectors locate a target. The Russians further claim to be developing a high-speed version from which no drone will escape.

As Russia struggles to build a domestic drone industry, a Russian group has produced FPV propellers with a thermoforming machine. They plan to attempt 10" propellers next. Thermoforming uses heat to create plastic parts by molding a sheet of plastic over a mold.

What would men like these light cavalrymen think of Mavic reconnaissance drones? “Reconnaissance at Dawn”, Dan Nance.

The range of FPV control frequencies widens further, as seen in this spectrum analyzer showing strong Russian FPV operator transmissions in the high 2.1 to 2.4 GHz channel.

The Yugoslav UDZ-1 tilt-rod fuze is used with landmines and booby-traps. and was used extensively in the Bosnian conflict. A lock ball retains a spring-loaded striker. A sprung rod has one end seated inside the hollow striker, with the other end butted against a tilt-rod. 1/

Net trees are growing along more Russian roads. This long anti-FPV net tunnel is at Bakhmut, 15-20km from the frontline.

Recent downed Russian Shahed-136 UAVs have a new serial production 3G/LTE modem module for transmitting telemetry and location data. Other applications are possible such as video with the addition of a camera, or accessing location information via RTK as in the quote. 1/

Pyrotechnic delays and expelling charges of a Russian POM-2 anti-personnel landmine free spring-loaded feet to force it upright, and then release 4 spring-loaded tripwires. This is part of the remotely deployed POM-2's intricate deployment and arming sequence. 1/

A new “Cometa” CRPA satellite navigation system for resisting GPS/GLONASS jamming was recovered from a downed Shahed. It has a 12 antennas array, upgraded from the 8 antenna “Cometa-M” that Russia has successfully used on Shahed and UMPK guided glide bombs for the last year. 1/

Two TM-62T anti-tank landmines were doubled up for dropping as a bomb by a heavy Ukrainian “Vampire” drone. The fuze is an electric device in which inertia moves the straight wire into the coil on impact, closing the electrical circuit. 1/

The thermal camera of the Mavic 3T drone can be useful during the day as well as nighttime. Here Russian soldiers sheltering under heavy tree cover cannot be seen with a day camera, but are clearly revealed with the thermal camera.

A Russian throws a POM-2R anti-personnel landmine to show the deployment and arming sequence. He ignites the pyrotechnic cascade on the container and throws it. The mine is ejected from the container, then the legs deploy, and finally the spring-loaded tripwires are released.

A #Bulgarian OG-7MApr fragmentation projected grenade adapted as a Ukrainian drone bomb. The “pr” suffix indicates that the fuze is taken from the Russian VOG-25M bounding projected grenade. The impact plate mechanism has been replaced with a printed black “artichoke” plate. 1/

Ukrainian soldiers must understand that Russian fiber optic FPVs can penetrate far into buildings. All doors must be kept closed, and other openings sealed.