OCF antennas are very convenient as they will allow multiple bands of operation with a simple wire antenna which is fed off center with a 4:1 OCF Current balun with built in feed line choke,
RFI/EMI Solutions from KHz to GHz
Ferrite Slip On Bead, ID = .505in/12.8mm, Mix 43, 1 piece, 212 per case - make excellent bead baluns/chokes with shrink wrap exterior for 1/2" cable