[XJet]

Thanks for the kind words...

The ideal solution for RC would be to have some dedicated spectrum dedicated solely for RC use at a high-enough frequency that we could use still SS techniques.

Right now, 2.4GHz is a battlefield where it's only thanks to the technical merits of SS technology that we're able to use it for anything at all.

There are some advantages to 2.4GHz though:

It's a short enough wavelength (high enough frequency) that distance is a great barrier to interference. If you're out in the middle of nowhere, miles from any other 2.4GHz devices or services then you're pretty damned safe. The path loss for 2.4GHz is quite high and it's also fairly much line of sight which means stuff that's below the horizon or behind a mountain isn't going to hurt you. Even stuff you can see will be of no matter -- if it's far enough away that its signal is simply absorbed or dissipated before it gets to you.

Of course since the RC hobby is a relatively non-essential use of the radio spectrum, it's unlikely that there'll be any band of frequencies allocated specifically for it and, even if there was, the cost of RC gear on those frequencies would likely be a *lot* more than the 2.4GHz stuff we're now using.

The only reason that 2.4GHz has taken off for RC use is that there are plenty of "solutions" (chipsets and modules) designed for other things on 2.4GHz (such as WiFi etc) which can be pushed into service for RC links. Of course this also means that there are limitations to some of the current generation of 2.4GHz radio gear because few of those "solutions" were actually designed for robust, resilient, highly mobile, real-time telecontrol applications.

With the ever-growing flood of cheap "gadgets" operating on 2.4GHz coming out of China I can't see the band getting any friendlier for RC users. This means there will always be fields that are simply too risky for 2.4GHz RC use, while others are interference and trouble-free on this band.