I would like to wirelessly 'connect' several sensors inside and outside the house with the RF-TX-315 modules. These remote sensors should be battery operated and I am concerned about the power usage (they should last for months or even a year). Since the module sends a lot of noise when not actively sending alternating '0's and '1's (as per your note) I am thinking about a way to 'shutdown' the module and only let it transmit data for a short period of time every now and then. By making the time between transmissions random there should be minimal collision between sensors sending their measured data to a receiving device (Arduino based).
Before figuring it all out myself, I wanted to check if there is any experience with this kind of setup. BTW, I will be using a simple PIC and the PT-2262 or similar for encoding. One way would be to have the PIC switch the power for the TX module, but I am not sure about possible side effects and whether there are simpler ways to put the radio in low power/sleep mode.