Please Note

FOUNDATION CORNER NUMBER TWO

As appeared in October 2009 AR article the example calculations are incorrect.

Below is the correct example

For example an antenna cut to resonate at 7.1 MHz would be

300 * 0.95 / 7.1 = 40.140 metres divided by 2 for a half wave = 20.070 metres.

Remember that this is the total length end to end and we will need two pieces of wire
approx 10.035 metres long for each side of the dipole.

The 40m dipole can be operated on its 3rd harmonic for 15m operation.