Transmitter:
There are three pins on the transmitter: DATA, VCC, and GND. VCC can be connected to 3 to 12V DC.
DATA is the data output pin, which is connected to digital 12 pin of Arduino. ANT is the point to connect to external antenna.
Specification:
Communication: AM modulation
Communication frequency: 315MHz
Frequency Stability: +/- 75KHz
Transmitting Current: 3 - 50mA
Working Voltage: DC 3-12V. The higher the voltage, the longer the communication
distance Note: please don't use voltage higher than 12V.

• Communication: AM modulation
• Communication frequency: 315MHz
• Frequency Stability: +/- 75KHz
• Transmitting Current: 3 - 50mA
• Working Voltage: DC 3-12V. The higher the voltage, the longer the communication

Communication: AM modulationCuteDigi