RE: 800mw camera?
2.4ghz is good. The "old" 800mw systems used 1.2ghz which is illegal in the US and possibly other places.
I have not had problems with 2.4ghz (transmitting frequency 2400 megahertz) messing with any of my aircraft receivers. Your standard rc aircraft receiver in the US is on 72 megahertz. 75mhz for ground use.
I operate on 50mhz as a licensed ham operator.
The only time I ran into trouble was with a 900mhz system and one of my 50mhz receivers. Had to switch to a 72mhz receiver for that plane and it works fine with both 900mhz and 2.4ghz or 2.4 gigahertz.
ghz= gigahertz
mhz= megahertz
You should not have any problems.