Donut AM MW/SW Mini Loop Antenna+High Resistance Amplifier Kit for HFDY Malahiteam DSP DSP2 Receiver HF Middle Wave

Specification Input Impedance 1 Megaohm 1MΩ Output Impedance 50 Ohms 50Ω Gain 0dBBandwidth 180MHzPower Supply Voltage 5VBuilt in Battery Capacity 800mAHCharging Current 600mAOperating Time More than 24 hoursDimensions 50x45x18mmFeatures 1 Impedance Matching The high resistance amplifier serves as an impedance conversion device effectively matching higher antenna impedances to a standard 50 ohm output This ensures optimal signal reception and minimizes energy loss due to impedance mismatches 2 Wide Compatibility Compatible with various radio receivers SDRs transceivers and more such as PeaCock Mini Loop HackRF One and Donut antennas It can enhance the performance of your receiving equipment by maximizing energy capture from input antennas 3 Direct Connection to LC Resonant Antennas This amplifier can be directly connected to LC resonant antennas including loop antennas like the Donut antenna and magnetic bar antennas It extracts energy directly from these resonant antennas offering higher gain and selective frequency characteristics 4 Long Operating Time With an 800mAH built in battery this amplifier provides an extended operating time of over 24 hours ensuring uninterrupted use during extended listening sessions or fieldwork 5 Compact and Portable The amplifier s compact dimensions 50x45x18mm make it highly portable and easy to integrate into your radio setup It s an ideal companion for outdoor enthusiasts and radio hobbyists Package Inc