I would like to know a solution to the issue i am facing. If, let's say, I need to supply this transmitter module (434MHz) a higher voltage (e.g. 9V) in order to increase the transmission range or distance, then do I also need to supply the data input to the transmitter to be the same level as the supply voltage. Because, I am using arduino development kit which gives out only 5V serial data from tx pin.So, do I need to make the tx pin output to be amplified so that the transmitter data input voltage meets the transmitter supply voltage which may be greater than 5V (e.g. 9V)?
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