Modulation Mode: AM/FM Frequency Range: 26.965-27.405MHZ Frequency Tolerance: ±5.0ppm Input Voltage: 13.2V Dimensions: 120x88x35mm Weight: 550g Frequency Control: PLL Synthesizer Current Drain: Transmit 2A max , Receive 0.3A, VOL Max 0.8A Antenna Connector: UHF.SO-239 Power Output: 4 Watts FM/AM Transmission interference: inferior to 4nW(-54dBm) Frequency Response: 300-3000HZ Modulated signal distortion: inferior to 5% Output Impedance: 50 ohms Sensitivity: Less than 1uV for 10dB(S+NVN Image Rejection: 70dB