Which of these freqs won't affect 2.4ghz? They are all ghz.

8 channel operation ( PLL) (1.080 - 1.120 - 1.160 - 1.200 - 1.240 - 1.280 - 1.320 - 1.360 Ghz

You might first check if any of the frequencies you quoted are legal in the USA. I'm not sure whether any of them are or not.

Which is perfect because I am stationed in south Korea.

Yep, I forgot to think globally

So how can I determine which freqs will cause trouble?

Systems working at 2.4Ghz are usually spread spectrum technology. This is very different than the older analog systems we have used in the past. I don't know how much detail you want, but this stuff is very similar to cell telephones. The bottom line is that SS is digital and has a very high immunity to interfering signals. This is why SS radios don't have to be impounded or frequency cards used at club flying fields.

You can also check with a hobby shop in the area, they usually keep track of things like that or they can put you in touch with someone who flys around there.