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Technical Topics => Equipment => Topic started by: NJQA on February 11, 2021, 1234 UTC

Title: Portable HF Flag Antenna
Post by: NJQA on February 11, 2021, 1234 UTC

The March issue of QST has an article on building a portable Flag antenna for HF direction finding.  This is useful for HF xmtr hunts or locating interference sources.  The antenna is broadband and has a 20 to 30 dB null.

You can build it for $5 worth of parts, or buy a kit at DX Engineering for $119 (!)

A copy of the QST article and the DXE instructions are here:

https://www.dxengineering.com/parts/dxe-noiseloop/documentation

Title: Re: Portable HF Flag Antenna
Post by: Brian on February 12, 2021, 1833 UTC

As you say, 5 dollars of parts. I made a loop.  If you're getting sky and ground wave, it's not much goof for DFing.