i got 1 of those cheep mini wireless cams from ebay it is 900mhz -1200mhz out put power of 200mw and the rang isnt very good is thare aney way i can build or buy a rf amp to boost its tx power
You should be able to find an RF booster in TAB Books' "Encyclopedia of Electronic Circuits" at your library, a Google search for "RF Booster", or you can try to replace the output transistor with a higher-rated unit.