Night Watch told 404 Media that it used this Lima to take down 19 Kinzhals in the past two weeks. First, it replaces the missile’s satellite navigation signals with the Ukrainian song “Our Father Is Bandera.”
Any digital noise or random signal would work to jam the navigation system, but Night Watch wanted to use the song because they think it’s funny. “We just send a song…we just make it into binary code, you know, like 010101, and just send it to the Russian navigation system,” Night Watch said. “It’s just kind of a joke. [Bandera] is a Ukrainian nationalist and Russia tries to use this person in their propaganda to say all Ukrainians are Nazis. They always try to scare the Russian people that Ukrainians are, culturally, all the same as Bandera.”
You see, we're not actually Nazis, it's just a funny joke! What's so bad about a silly song?!
If you're talking about inertial Navigation it is not even relatively good, it's drift rate was measured in m/s. Granted it's been a hot second so maybe there were improvements but I don't think anyone is putting top grade instruments into a missile.
It’s not great but it’s pretty good for a large explosive. What gets silly is the original guided dumb bomb kits were just pure satellite navigation and they can be made to go way off by a peer adversary.
A modern inertial system can get within about 100m accuracy over intercontinental ranges though, and proper cruise missiles use terrain matching and whatnot to reduce that to nothing.