HF active antenna amplifier

Active HF Antenna AMPLIFIER project

Amplifier AD8129 for Active Magnetic HF Antenna 1MHz – 20MHz for Hula Loop Box

HF active antenna amplifier
Active HF Antenna AMPLIFIER project

 

Amplifier AD8129 for Active Magnetic HF Antenna 1MHz - 20MHz for Hula Loop Box

 

Active HF Antenna AMPLIFIER project

 

Active HF Antenna AMPLIFIER project

 

 

 

PCB Dimension – 60*45mm

RX Magnetic loop for HF bands

will work forĀ receiving shortwave HF/SSB/AM radios

you set frequency range with hula-loop diameter andĀ  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.

BNC connector for RF

ONLY Preamplifier AD8129 for Active Magnetic HF Antenna 1MHz – 20MHz for Hula Loop

You will get

– soldered and testes preamp (30dBm) on AD8129 in waterproof box

You need

– Magnetic loop (RG6 coax with lenght about 1-6 meters)

– power supply 12 VDC 100 mA or more (connector 5.5*2.1mm)

$24.00 Buy HamRadio & SWL

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