Is this about propagation over obstructed Fresnel zone paths?
I ask because generally 2.4GHz has much longer range than 900MHz due to the much higher gain antennas achievable at higher frequencies.
But if there's something in the way (trees, buildings, a bit of terrain), then 900MHz can work on a path when 2.4GHz doesn't. I suppose that's one definition of "has sufficient range".
Is this about propagation over obstructed Fresnel zone paths?
I ask because generally 2.4GHz has much longer range than 900MHz due to the much higher gain antennas achievable at higher frequencies.
But if there's something in the way (trees, buildings, a bit of terrain), then 900MHz can work on a path when 2.4GHz doesn't. I suppose that's one definition of "has sufficient range".