Digital RF Power Amplifier VHF 136-170Mhz 40W Radio DMR Amplifier FM Radio Power Amp. Features: - Elegant Appearance: Black oxidized all-aluminum casing - Cooling fan works when the temperature is more than 40â?? - RF-IN port, RF-Out port to connect external antenna (antenna not included) - Dual-color LED Indicator: Green shows standby status; Red shows transmitting status Parameters: - Item Name: RF Power Amplifier - Input Power: 1-5W - Modulation Mode: DMR, C4FM, DPMR, CW, FSK, P2S, FM - Transmitting Frequency: 136-170MHz - Receiving Frequency: 50-1,000MHz - Working Mode: Half Duplex (Cannot receive and transmit at the same time) - Receiver Loss: -1DB±0.4 - Output Power: 40W - Power Supply: DC 10-14V - Standby Current: 10-30MA - Cooling Way: Cooling fan works when the temperature is more than 40â?? - Size: 130 x 104 x 60mm (LWH) - Weight: 880g Package Included: - 1 x RF Power Amplifier How to Use it.Usually it cost about 35USD-50USD. If you receive defective item, please kindly notify us within 14 days. The item "40W VHF 136-170Mhz RF Power Amplifier Radio DMR Amplifier FM Radio Power Amp#TOP" is in sale since Wednesday, December 30, 2020. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers". The seller is "xtesco" and is located in Shenzhen. This item can be shipped worldwide.