MiCT started out as a group of wannabe anarchists in Berlin in the 80s. They bought a load of my old 10 Watt board through a guy called Dave who went over there and showed them how to assemble and align them.
They've been supplying little FM broadcast set-ups for years. The latest "Pocket FM" is a simple design, using an at-frequency oscillator, steered by a PLL. This is amplified by an MMIC up to a couple of hundred milliwatts, and then a Mitsubishi 30 Watt FET takes care of the RF output. Their antenna is a slightly weird ¼-wave groundplane job, using that fat radiating element to widen its bandwidth. (The idiot in the video didn't know that the log rods he assembled and inserted were groundplanes). The transmitter box includes a Chinese USB player, a satellite receiver, a GPS receiver to provide an accurate clock, and a couple of Raspberry Pi computers to handle all the housekeeping. It's actually quite a sophisticated package.
They also provide a DC power conditioner which can be fed from almost anything and develops the correct supply voltage for all the electronics. I've seen them run from car batteries, lantern batteries, windmills, water wheels, solar panels and even a little wood-burning steam generator!
"Why is my rig humming?"
"Because it doesn't know the words!"