Check the listing for details. Transmitter Card Broadcast Professional FM 88 - 108 Mhz - Wide Band - 6w. Condition: Used. Listed at 195.00 USD. 6W MAX STEREO FM TRANSMITTER IT IS WORKING AND TESTED Transmitter suite key features: 1, DSP + PLL technology, make the frequency more stable, the frequency does not change with the environment and produce frequency drift. 2, no need any adjustment, bring the fun of DIY to beginners. 3, the frequency can be continuous adjustment within the specified scope. 4, with microphone input interface, and can through digital potentiometer to control the volume of the microphone. 5, audio input by digital potentiometer which can adjust the volume. 6, power can be between 0.1 W and 7 W maximum power continuous adjustment. 7, the power output network for harmonic suppression is very good, make the output spectrum is more clean 8, set the frequency and volume of power lost protection, the next boot does not need to set up again! Suite main parameters: 1, the input voltage: dc 12 v About 2, input current 3.0 A 3, the audio signal: the maximum input Vpp is less than 1 v. 4, microphone types: cylinder microphone or microphones!!!! 5, the output power: 0.5 W - 7 W continuous adjustable! 6, the output impedance: 50 Ω 7, working frequency: 76 m - 108 MHZ Step: 8, frequency of 0.1 MHz 9, the distortion degree: 0.03% ~ 0.1% A, the board size: fire board: 100 x 60 mm (excluding fin) Control panel: 58 x 36 mm B, the launch distance: more than 8 km (premise is open field emission) C, stereo separation degree: greater than 63 db