Off Center Fed (OCF) Antennas Slip On - Mix 75 - RFI Range 150 KHz-10 MHz Store/Ferrite Core Products/Mix 75/Slip On - Mix 75 - RFI Range 150 KHz-10 MHzRefine by FiltersClear allFiltersClear allShow itemsShow itemsFB102-75 - ID=1/2", RFI Range 150Khz-10 MHzFB102-75 - ID=1/2", RFI Range 150Khz-10 MHzSKU FB102-75-1$3.50 Buy Now 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,