High resistance amplifier, suitable for SDR walkie-talkie, small ring antenna HackRF One, Donut antenna

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shipping list:

High-resistance amplifier*1

Weight: 80g

Volume: 281.25cm³

High-impedance amplifier is an impedance conversion device,

which can convert high impedance into a standard 50 ohm output impedance,

thus playing the role of impedance matching and isolation.

The high-impedance amplifier is mainly used for passive antenna receiving and matching,

suitable for donut resonant antennas, pull-rod antennas, whip antennas, magnetic rod antennas, etc.

High-resistance amplifier can be used for any radio receiver radio SDR walkie-talkie, etc., malachite, small ring antenna, HackRF One, Donut antenna, Mini Loop, radio antenna, tuning ring. Other models) High input impedance can obtain as much energy from the input antenna as possible, reduce the signal energy loss caused by the input antenna impedance instability, and greatly improve the reception performance. Because the impedance generated by LC resonance is also very high, this amplifier can be directly connected to the LC resonant antenna and directly obtain energy from the resonant antenna, which can obtain high gain and frequency selection characteristics. The LC resonant antenna includes donut antenna, magnetic rod antenna, etc.

The specific indicators of high-resistance amplifiers are as follows:

1. Input impedance: 50Ω

2. Output impedance: 1MΩ

3. Gain: 0dB

4. Bandwidth: 300MHz

5. Charging voltage: 5V

6. Built-in battery capacity: 500mAH

7. Charging current: 600mA

8. Working hours: >24h

9. Size 50x45x18mm