ON3PCO - a Dutchman in Belgium

The Antennas

The FD4 balun (top) and 3-element HB9CV (left)                            The FD4 balun and a part of the dipole from a different angle ...      

A closer look at the FD4 balun                                                                          A part of the windom has been 'folded'

The modifications for 21 MHz : 2 extra wires - long 4.5 and 2.25m - parallel to the original legs. It's working great !

Updated buildingplan of the 5-band FD4 - source : PA0FRI (Frits)

I reshaped my FD4 on December 13th 2008 and it performs even better - source : PA0FRI

                           HB9CV for 2m                                              The dual band (2m + 70cm) mobile JWX-window antenna