Check the listing for details. 144mhz RF Power Amplifier 130 -- 180mhz. Condition: New. Listed at 26.99 USD. 144mhz RF power amplifier 130 -- 180mhz The power amplifier is used to amplify 130-180mhz radio signal, especially suitable for the amplifying and transmitting of 144mhz signal. Input 0.1W (20dbm) can output 5 0W@7.2V It has high gain and efficiency, especially suitable for small power amplification. 1. Technical parameters 1) Working frequency: 130-180mhz 2) Working voltage: 5-7.2v 3) Working current: 1 -- 2A (determined by output power) 4) Output power: (input power: 0.1W (20dbm) 5.0V power supply: 2.5W (34dbm) 7.2V power supply: 5.0w (37dbm) 10.0v power supply: 8.0W (39dbm) (not recommended) 5) Joint model: SMA standard female head (external screw and internal hole) 6) Overall dimension: 50 * 50 * 15mm (L * w * h) 7) Product weight: 87g (heat sink blackened) 8) Wiring method: Rfin: input signal amplification Rfout: output amplified signal VCC: positive supply Nose: negative pole of power supply Led: power indicator 2. Product photos