Off Center Fed (OCF) Antennas +2FSB31-1/2, ID=1/2", RFI Range 1-300 MHz, 1 PieceStore/Ferrite Core Products/Mix 31/Snap On - Mix 31 - RFI Range 1-300 MHzSKU FSB31-1/2-1$5.95Bulk pricing available for quantities of 10 units or moreQuantity:1 Add More Add to CartGo to CheckoutBuy more, save moreQuantityPrice per itemDiscount10 items$4.9517% offSave this product for later Favorite Favorited View FavoritesCustomer reviewsNo reviews yet. Only signed-in customers who bought this product can leave reviews. To leave a review, sign inShare this product with your friendsShareSharePin itFSB31-1/2, ID=1/2", RFI Range 1-300 MHz, 1 PieceStore/Ferrite Core Products/Mix 31/Snap On - Mix 31 - RFI Range 1-300 MHzProduct DetailsInitial Permeability (@ 10KHz): 1500Material: MnZnMax cable size - in/mm: .5/12.7OD (A) - in/mm: 1.22/31ID (B) - in/mm: .514/13.1Length (C) - in/mm: 1.55/5Z (ohms per bead - single turn 1 MHz): 25Z (ohms per bead - single turn 5 MHz): 71Z (ohms per bead - single turn 10 MHz): 100Z (ohms per bead - single turn 25 MHz): 156Z (ohms per bead - single turn 100 MHz): 260Z ohms (per bead - single turn 250 MHz): 260Ferrite Snap On, ID = .514in/13.1 mm, Mix 31 # Turns of RG-8X = 2 # Turns of RG-213 = 1 Square or Hex sided depending upon inventory stockShow MoreOCF 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,