A simple but effective RX antenna for 40 meters HAM band. S/N RX improvement. Click on image for full article.
Testing HF & MF communications in “Sima Teixeira”, from 160 to 10 m bands.
Testing HF communications in “Cueva de Cornatel”, from 80 to 10 m bands. WormAnt tipe B (“SOTA”) and D (“Kilowater”) employed. Transmit and received SSTV data in 80 m band.