Portable Flag Antenna for MF/HF Radio Direction Finding

摘要

The portable flag has become a real game changer, and it is my antenna of choice for direction finding of RFI on MF and HF. It is unidirectional, broadband, portable, easy to walk with while direction finding, and easy to transport in a car. The portable flag does a wonderful job leading me to arcing power line poles, but when close to the suspect poles I switch to a portable 136 MHz AM receiver, four-element beam, and typically 30 dB of attenuation to identify the faulty pole.