why do i have crap range, or steering twitch?

2 cheap tx/rx, 1 i pulled from my 18th scale losi crawler 2.4ghz, givers me 100 foot range, and 1 cheap hk one i had lying around and the steering servo twitches (havent tested range). before i get flamed, i had a nomadio react that crappped out on me too, 250 well spent
i see no point in spending a lot on a tx/rx, when none of them work
the losi tx/rx has no range, the hk one has a twitchy steering servo (tried digital and analog servos)

ohh setup...

rc8t rcm'ed mmm cc/neu2200 5s crapamps 5000 mah lipo (2 came free w/ truck, 1 puffed along with my old 4s 5000mah zippy-h lipo as well) 15/54 gearing
any suggestions would be helpful as to why i have tx/rx problems
thanks