3 ms·
> Because radio frequency signals travel faster in air than does light transmitted via fiber optic cable, use of the 2-25 MHz Band enables transmission with a s
by LocalH 3y ago
> Because radio frequency signals travel faster in air than does light transmitted via fiber optic cable, use of the 2-25 MHz Band enables transmission with a shorter delay than fiber.
wut
- thebeardisred 3y agoThe speed of light is different in an atmosphere, glass, a vacuum, etc.
- cozzyd 3y agotypical index of refraction in fiber is of order 1.5. Over 1000 km, that's nearly 2 ms compared to n=1. Of course HF doesn't propagate "straight" so a direct comparison is not straightforward.