Abstract
We make a wire antenna for emergencies as preparing an 1 kW auxiliary transmitter for our main MW radio transmitting station. This wire antenna is a 1/4 λ inverted L antenna modified inclined single wire antenna. In order to make it, we newly need only a 10m-high concrete pole. Although it is usually folded up, we can extend it within 15 minutes if needed. The efficiency is as high as 28% by survey, we confirmed that it could be effective to use enough.
