Maybe most equipment purchased in 2019, from top-tier vendors, with all the software options unlocked. But that's several steps away from what's actually deplo

Maybe most equipment purchased in 2019, from top-tier vendors, with all the software options unlocked. But that's several steps away from what's actually deployed in the world right now. A tremendous amount of the telecommunications network uses BITS sync equipment deployed in the late 90s, because it was extraordinarily well built, extremely reliable, and supported over the long term. There's nothing wrong with it, but it's single-constellation. Ditto the power generation and distribution industry, mostly deployed in the early 2000s. ISOs rely on frequency measurements that come from GPS-synced network monitoring hardware. Again, high-end industrial stuff, reliable and well-supported, but single-constellation. Ditto WISP PTMP hardware, mostly deployed in the early 2010s. Heck, even the current stuff is still only single-constellation because that's all it needs to be. Thinking about it further, I think your statement applies to cellphones and very little else.