Follow by Email

Magnetic loop for HF bands

RX Magnetic loop for HF bands










PCB Dimension - 60*45mm

Power supply - 12VDC (100mA)


Active HF Antenna AMPLIFIER project

will work for receiving shortwave HF/SSB/AM radios 

you set frequency range with hula-loop diameter and  tuning potentiometer
Loop coil are not included, you need to make your own coil (simple way - RG6 coax)
Electrical circuit of this active antenna board based on high impedance differential amplifier wired across the loop. Frequency tuned with varicap. By selecting size and inductance of hula-loop turn you can set desired HF range of the antenna. For example with 60cm diameter hula-loop turn you can get approximately 5MHz- 15MHz range. 


Комментариев нет:

Отправить комментарий