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 Snap On, ID = .26 in/6.6mm, Mix 31, case of 196 pieces
fit RG8X, 58, 58, 6, audio, video, Ethernet, small AC/DC cables and many more with up to 1/4" outside diameter cable.