I have been playing with the 433Mhz RF modules from rentron, They are very cheap RF module that works great within 200 feet.
formatting linkI would like to increase a little bit the power and would like to control a robo outside whille being inside. There a window barrier. I have been told that my modules will not work and would have to go with bigger power ones, Is more power mean higher frequency ? or just a stronger module in itself ? Does it have to do with the glass behing a barrier and the wavelenght should be able to pass between the molecules of the window and 433mhz is too big ??