Letter Re: Is Radio Direction Finding a Potential Threat for Survivalists?
Merry Christmas Jim, For added COMSEC, I strongly advise those with transceivers to leave the microphones unplugged. This is a sure way to limit giveaway radio frequency (RF) emissions. For those who have to make transmissions, for example contacting family members, the use of [highly directional] high gain multi-element “beam” (yagi) or log periodic yagi antennas at the base station would reduce the RF signature. The higher the gain a “beam” antenna has the more elements there are on the boom and therefore the narrower the signal spread will be, in degrees, off the front of the antenna. An antenna …