FM Transmitter Wireless Microphone Surveillance Frequency Board Module For Ardu Adjustable Capacitor DC 100M 800M 85-115MHz

85-115MHZ 100M 800M FM Transmitter

• The voltage range for operation is between 2 and 9 volts, utilizing direct current (DC).

What is the voltage required for a 9mA current at 3V?

• The reference distance for testing is 100 meters in an open area and 10-30 meters in indoor settings with obstacles such as environmental factors. The voltage will be gradually increased from its initial level during the test.
• The operating frequency typically falls between 85MHz and 115MHz, with a default boot frequency of 99-101MHz.
• As long as your phone has an FM feature and can receive within the 88-108MHz range on FM radio.
• Variable capacitance: capacitor with adjustable frequency.
• The output impedance measures at 50 ohms.