Sounds like you know a thing or two which is what I appreciate. I don't know what's used and don't have a budget to perform any meaningful analysis. But I do know that GWEN towers are 30 years old tech that's capable of transmitting signal in 200mhz to whatever ghz range 200 miles afar. Frey effect according to wikipedia is audible in 200 mhz - 3 ghz range. According to James C Lin research - signal doesn't have to be strong (in fact, strong signal can get hazardous to health and used like a weapon like in Venezuela operation). Surely radio folks can match up 30 years old tech. And signal processing capabilities nowadays can get absurdly sophisticated.
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Sounds like you know a thing or two which is what I appreciate. I don't know what's used and don't have a budget to perform any meaningful analysis. But I do know that GWEN towers are 30 years old tech that's capable of transmitting signal in 200mhz to whatever ghz range 200 miles afar. Frey effect according to wikipedia is audible in 200 mhz - 3 ghz range. According to James C Lin research - signal doesn't have to be strong (in fact, strong signal can get hazardous to health and used like a weapon like in Venezuela operation). Surely radio folks can match up 30 years old tech. And signal processing capabilities nowadays can get absurdly sophisticated.