Features Good Performance: This power amplifier has 30W high power and 15W low power modes, with low working noise, high accuracy, and high sensitivity, with safe and reliable operation. Aluminum Alloy: This power amplifier is made of excellent aluminum alloy material, which has fast heat dissipation effect, good corrosion resistance and anti interference performance. Multiple Usages: Can be used as an output power amplifier for signal source, EMC testing, drone output power interference amplifier, and also as a driving stage for ultra wideband amplifier. Frequency and Mode: The transmission frequency is 400‑470MHz, and it adopts a half duplex automatic transmission and reception conversion mode, and cannot receive in transmitting state. Simple Operation: This high frequency power amplifier has a simple structure, which is easy to operate and move, and has strong practicality, making it very suitable for DIY enthusiasts. Specification: Item Type: High Frequency Power Amplifier Material: Aluminum Alloy Input Power: 0.1-3W Transmission Frequency: 400-470MHZ Operating Mode: Half Duplex Automatic Transceiver Conversion (cannot receive in transmitting state) Reception Loss: ≤1DB Output Power: 30W 15W (High Low Level) Power Supply Voltage: 13.8V Working Current: 6A Size: Approx. 150 x 113 x 62mm / 5.9 x 4.4 x 2.4in Package List:1 x High Frequency Power Amplifier Package List 1 x High Frequency Power Amplifier