The long-wave wave, high frequency amplifier in universities, research institutes and radio enthusiasts can apply hands. Amplifier main parameters: - Amplifier frequency 100kHz-50MHz - single-supply voltage 12-15V, current 1A - amplifier gain:37dB - input 1mW (0dBm), the output power of 4W, working voltage is 12v. When the operating voltage to 15v, output power 6W - impedence:50 ohm - input and output connectors SMA (female head) - size :103 × 90 × 50mm PACKAGE : 1pc module as picture show. Usually it cost about 35USD-50USD. The item "100kHz-50MHz 5W Long-wave AM High-frequency RF Radio Power Amplifier B-TOP" is in sale since Monday, December 16, 2019.This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers". The seller is "buyfromtzt" and is located in HK. This item can be shipped worldwide.