difference between surface and air radios

[Mr. ED]

Hi guys, I want to get into the 2.4stuff but the choice in the cheaper range seems limited when I want 'sticks'.

Spectrum for example only has pistol grips in the category 'surface' radios. I've read somewhere the difference between both categories is only in the receivers alimentation voltage. So can I get an air radio and put a surface receiver next to it it... or is there more to watch out for???

[tim.sanderson]

I'm not sure what the actual differences are, but I am fairly certain it is against the law to use an air radio on land. You'd have to check your local laws.

[Mr. ED]

That's old: air used to have a different frequency range (for example 35mhz) from land (27mhz).
With 2.4G that rule makes no sense anymore.

[tim.sanderson]

Gotcha. That makes sence.