Introduction
We have had a lot of fun with LoRa at 1 watt over the last two years in the 440MHz / 70 cm band with HamShield: LoRa Edition. Over the last 2 years, we have done plenty of drive tests, with strong signals through 6 miles of forest, and all sorts of seemingly impossible feats. We even got to try out our 8 watt amplifier for more impressive results. 
But what if we took things a little bit further? How about we plug HamShield: LoRa Edition into our new 80 Watt DMR amplifier? Then, lets plug it into a 13 dBi Diamond Yagi antenna and point it straight up? Did you know that would be 1500 watts EIRP? You couldn't possibly do NVIS-like transmissions at 440MHz with cheap consumer hardware..right guys?
Troposcatter-What?
Radio waves bounce off a lot of strange things, including differences in temperature, moisture and more. Ducting through the troposphere can cause line of sight signals to travel hundreds and sometimes thousands of miles. It has been used since the 1950's as an alternative to satellite communication.…

Tropospheric propagation describes electromagnetic propagation in relation to the troposphere. The service area from a VHF or UHF radio transmitter extends to just beyond the optical horizon, at which point signals start to rapidly reduce in strength. Viewers living in such a "deep fringe" reception area will notice that during certain conditions, weak signals normally masked by noise increase in signal strength to allow quality reception. Such conditions are related to the current state of the troposphere.

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