I have a question about the polarization of the standard 3DR Radio 433 MHz antenna.
I thought that the antenna was a metal straight wire but when I removed the plastic coating I found that the antenna is a small helical. In the far field a small circular loop is horizontally polarized. So this means that if I have the standard 3DR Antenna on a transmitter and a thin metal wire antenna on a receiver, the antennas should be orthogonal to each other. I this correct?