Feature:1. Good wiring and heat sink design to maintain longterm stability and good heat dissipation.2. Broadband RF lowpower amplifier, suitable for 144MHz (130180MHz) radio transmitter learning and use.3. Easy to use, no particularly complicated operation is required, the installation of this amplifier is very simple.4. Suitable for all kinds of 380450MHz transmission use, such as radio frequency remote control, radio and other transmission use.5. Input 0.1W (20dBm) can output 5.0W 7.2V power, with high gain and efficiency, especially suitable for small power amplifiers.Specification:Item Type: Power AmplifierCommodity Material: Printed Circuit BoardWorking Frequency: 130-180MHzInput Power: 0.1W (20dBm)Maximum Output: 2.5W (34dBm) 5.0V Power Supply5.0W (37dBm) 7.2V Power Supply8.0W (39dBm) 10.0V Power Supply (Not Recommended))Working Voltage: DC5-7.2VWorking Current: 1-2A (Determined by Output Power)RF Connector: Standard SMA FemaleSize: Approx. 50 x 50 x 15mm / 2.0 x 2.0 x 0.6in.Package List:1 xPower Amplifier Note:Before using the RF amplifier module, please make sure that all instruments and equipment share the same ground (no storage) (in the potential difference), and then connect with the RF cable. The load must be connected, and noload use is strictly prohibited. Pay attention, especially the amplifier.