HackRF One High Resistance Amplifier ，Hi-Z Amplifier for SDR/Talkie

 High resistance amplifier is a kind of impedance conversion device,

 which can convert the higher impedance to the impedance of standard 50 ohm output.

High resistance amplifier is a kind of impedance conversion device, which can convert higher impedance to standard 50 ohm output impedance, 

thus playing the role of impedance matching and isolation.

It is suitable for donut resonant antenna, rod antenna, whip antenna, magnetic rod antenna and so on. 

High resistance amplifier.Can be used in any radio receiver radio SDR walkie-talkie etc.,malachite, small loop antenna.

HackRF One, Donut antenna, Mini Loop, radio antenna, tuning loop.(and other models) Higher input impedance can get as much energy as possible 

from the input antenna.Reducing the signal energy loss caused by the unstable impedance of the input antenna can greatly improve the reception performance.

Since the impedance generated by LC resonance is also very high, this amplifier can be directly connected to the LC antenna.

Therefore, this amplifier can be directly connected to the LC resonant antenna to obtain energy directly from the resonant antenna.It can obtain high gain and frequency 

selection characteristics, LC resonant antenna including donut antenna, magnetic rod antenna and so on.

Specific high resistance amplifier indicators are as follows:

1、Input impedance: 1MΩ

2、Output impedance: 50Ω

3、Gain：0dB

4、Bandwidth：300MHz

5、Charging voltage: 5V

6、Built-in battery capacity:800mAH

7, Charging current: 600mA

8、Operating time:＞24h

9、Size 50x45x18mm

Ship list 

High resistance amplifier *1