- The traps are placed so that the centre portion of the antenna inside the traps resonates at the higher frequency (14 MHz)
- To 7 MHz RF energy the traps just look like inductors and the whole antenna resonates at the lower frequency (7 MHz)
- The traps add to the electrical length of the antenna so that at resonance at 7 Mhz the physical length of antenna will be somewhat shorter than that of a half wave dipole