AM Radios and RFI-hunting Antennas and Attenuators You Can Buy or Build

The equipment included is not endorsed or tested in any way, nor is any vendor of purchased equipment preferred.

Buy

AM Radios (portable battery-operated radios start at under $10but check reviews to see how they play.)

cheap am radios – Search (bing.com)

Antennas

HF (loops are effective for point sources but less so foe line sources such as some power line RFI)

Professional GA450 Loop Antenna Radio Antenna SDR Short Medium Radio Antenna MW – Walmart.com

VHF (yagis like the ones used for contacting satellites can be effective but keep polarization in mind)

146/437-14WBP GigaParts.com

Build

Antennas

HF

plans for building small hf receiving loops – Search (bing.com)

VHF

plans for building vhf yagis – Search (bing.com)

Attenuators

Fox Hunt Offset Attenuator – 3rd Planet Solar / KC9ON

Some equipment that Bob, K1YO, the RFI Team Lead in WMA, has built

 

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