2"N"-s, not 2 "G"-s, but yeah, check out the used market, there are lots of good deals online or at local hobby clubs, someone might even give you a cheap old radio, witch should be plenty enough for learning, than you can invest more money when you know what you really want. but if you don't want to buy used; id buy a DSM2/DSMX radio, whatever that fits into your budget.
btw. try to find someone IRL to help you learn flying, it makes the experience a lot better.