Analog hardware that is robust enough for military deployment is crazy expensive because it tends to require parts of very high precision in order to achieve repeatable results.
It's one thing to build an analog circuit in the lab that performs a certain function, another to make this as a consumer grade device and a completely different kettle of fish to build it in such a way that the military will accept it as a part of their command-and-control infrastructure.
Military comms gear is overdesigned to a degree that is hard to imagine if all you've seen is consumer stuff.
By comparison, making a digital circuit with very high reproducibility of features is childs play.
Digital, by its very nature is a lot easier to get right because every state-transition is 'hard' whereas with analogue parts variability and noise are much harder to control and will lead to circuitry becoming un-usable (especially over time, in the presence of vibration or over a large temperature and humidity range).
It's one thing to build an analog circuit in the lab that performs a certain function, another to make this as a consumer grade device and a completely different kettle of fish to build it in such a way that the military will accept it as a part of their command-and-control infrastructure.
Military comms gear is overdesigned to a degree that is hard to imagine if all you've seen is consumer stuff.
By comparison, making a digital circuit with very high reproducibility of features is childs play.
Digital, by its very nature is a lot easier to get right because every state-transition is 'hard' whereas with analogue parts variability and noise are much harder to control and will lead to circuitry becoming un-usable (especially over time, in the presence of vibration or over a large temperature and humidity range).