Luckily, I am involved in RC aircraft. If my 5mm, $15 ELRS receiver can do 13 km without breaking a sweat, imagine what military-grade technology can do.
TOW missiles date back to 60s-70s, so I don't think they had access to tech that good at the time; for more modern efforts the Javelin (from the 90s) has equivalent range and no wires.
That makes sense, thanks. Isn't the Javelin unguided (or self-guided), though? This means it doesn't need wires not because communication with it is wireless, but because it doesn't need to communicate at all.
They seem to work quite effectively, I've never seen a TOW fail. Downside is you need to maintain visual guidance of the missile through it's whole flight path.
Russia has controlled a substantial portion of the Donbas for 8 years and has simply let it rot. There's no investment or utilization of that industry.
It also reduces supply of many resources (for example noble gases since Ukraine is the world's biggest exporter and Russia is the second), leading to higher prices which Russia would profit from (neon prices went up 600% around 2014). In the current situation, they also didn't expect to have to wage a year or longer war or deal with crippling Western sanctions.
It also wasn't officially Russian territory. They were still playing the game of "these are separatists that just want to join Russia", so it wouldn't make sense to invest anything in what's really been an active warzone for 8 years. Officially annexing Donbas was probably always the long-term plan from the beginning, but for some reason that turned into "fuck it, let's take Ukraine instead".
- Simple
- No radio frequency indication of an incoming missile.
There must be other reasons as well.