battery power for microcontroller and RF chip

[iknaitey]

How to power the RF transmitter while i have to transmit any command?
After transmit power should be OFF.
Next time when i have to send command power should be ON, Otherwise OFF.
power is given by the battery.
Note : RF chip is connected to the Microcontroller and data is send via SPI?
can anyone help me?

 

[FvM]

Your question isn't very specific.

Most people use an electronic switch (a transistor) to power a module temporarily. Some RF transmitters can be also set to low power idle state and don't need a switch.