Quote Originally Posted by mackrackit View Post
As others have said check your local laws.

You are reading the data sheet, did you see the part about 3 volts. Do not make the mistake of using 5 volts like you normally would with a PIC.

The Typical voltage for the LINX module is 3 volts and the parallax module need 5 volts so i assume that there is an voltage regulator on board.

So if i measure the voltage between GND and infront of the resistor R5 and have 3 volts it shold not be an problem to just bypass the restistor to get maximun power or?

I just check the local law and there is no problem to run at maximun power on the 433.92 MHz band.