We recently received this intruiging article from Dave Horvath
and invite you to read it and then join in the discussion. A
substantial number of unexplained crashes of radio control model
airplanes on 2.4GHz frequency prompted me to write this article
on the so-called “interference free” radio control systems on
the 2.4GHz band. The electromagnetic wave spectrum is subject to
the immutable laws of physics. The propagation characteristics
of the 2.4GHz wavelength and the environmental effects of this
frequency are more complex than on the 72MHz band. To better
understand this, we have to look at the electromagnetic wave
spectrum where 72MHz band is in the broadcasting region and the
2.4GHz band is in the microwave region. It is easier to see the
huge difference between 72MHz and 2.4GHz frequencies when we
convert 2.4 gigahertz to megahertz. Now it is 2400MHz versus
72MHz. When frequency increases, wavelength decreases.
Therefore, the 2.4GHz wavelength is shorter and closer to
visible light on the electromagne