2:1 Baluns/Ununs Enclosure Box - 4" x 4" x 4"Store/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Enclosure Boxes and HardwareSKU CB-Box-2$19.95Quantity:1 Add More Add to CartGo to CheckoutSave 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 itEnclosure Box - 4" x 4" x 4"Store/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Enclosure Boxes and HardwareProduct DetailsWeather resistant PVC enclosure with top gasket, side feet for mounting to surface.Show More2:1 (100:50) Baluns are useful between 50 ohm coax and 100 ohm balanced lines for loops, cubical quads, log periodics and other antennas where the impedance at the end of the feedline is 100 ohms (1/2 wavelength feedline).