High Impedance Amplifier For SDR WalkieTalkie Donut Antenna Impedance Conversion Device For Passive

A high impedance amplifier is an impedance conversion device that can convert higher impedance into a standard 50 ohm output impedance, thereby playing a role in impedance matching and isolation.

Features: High impedance amplifiers are mainly used for passive antenna reception matching, suitable for donut resonant antennas, rod antennas, whip antennas, magnetic rod antennas, etc. A higher input impedance can extract as much energy as possible from the input antenna, reducing the signal energy loss caused by unstable input antenna impedance and greatly improving reception performances. Due to the high impedance generated by LCresonance, this amplifier can be directly connected to the LCresonant antenna, obtaining energy directly from the resonant antenna and achieving high gain and frequency selection characteristics. LCresonant antennas include donut antennas, magnetic rod antennas, etc. Compact size and easy to use. Built in 600mAh battery for long working time.

Specifications: Input impedance: 1M Ohm Output impedance: 50 Ohm Gain: 0dB Bandwidth: 300MHz ReCharging voltage: 5V Battery: 3.7V, 600mAh ReCharging current: 600mA Working hours: more than 24 hours Item size: 49 * 45 * 18mm 1.9 * 1.8 * 0.7in Item weight: 59g 2.1ounce Package size: 70 * 60 * 20mm 2.8 * 2.4 * 0.8in Package weight: 69g 2.4ounce Packing List: 1 * High Impedance Amplifier