RioRand 0.5W Long Range (10km) Dual Mode Stereo Broadcast FM Radio Transmitter

Features: 1, power adjustable 100mW and 500mW power can be switched to use; 2, the real work of the whole band 76M ~ 108M frequency range can be set, such as 86M ~ 90M, 95M ~ 108M, 87M ~ 108M ... ... 3, excellent heat dissipation, power stability, stereo sound quality in its class enables you to be satisfied; 4, this paragraph with a microphone and volume control. 100mW - 500mW digital FM transmitter to transmit wireless signals with signal transmission and stability, clear stereo sound quality, compact and intuitive, simple and convenient operation, etc., can be widely used in schools, communities, small-scale office and other places, it is personal lovers the ideal FM broadcasting equipment. Main technical parameters: * Power supply voltage: DC9-15V (Recommended 12V) * Current: <0.5A * Frequency Step value: 100kHz * frequency stabilization mode: PLL Frequency Synthesizer PLL * Frequency stability: ± 10ppm (-10 C +60 ° C) * frequency deviation: ‰¤ ± 75kHz (100%) * Working mode: continuous work * noise and harmonic: ‰¤-60dB * SNR: ‰¥ 60dB * Stereo Separation:-50dB * Audio Frequency response: 80 ~ 15000Hz * Audio Distortion: <2% * RF output impedance: 50 Ohm * RF output power: 0.1W or 0.5W (user can switch power) * MS2622A spectrum measurement noise and harmonics. * reference range: 100m-1Km (open land) * Product size: length 147, width 88, high 38 Package List: You need to prepare a power adapter (output 12V/2A) and audio cable by youself. 1 * RR-05B FM Transmitter Black