These baluns and ununs can be used for impedance matching and also as End Fed halfwave antenna matching transformers to 50 or 75 ohm coax cable.
50:300 (6:1) CUBE™ Unun, 1.8-61 MHz, 1500/5000 Watts PEP, End Fed, Vertical, Sloper
Purpose. The CU-6-1500 is used as a 6:1 (300 ohm unbalanced load to 50 ohm unbalanced source) broadband transformer for 50 ohm coax cable rated at at 1500 PEP into 300 ohms unbalanced load from 1.8-61 MHz. Excellent for certain verticals and also slopers (51', 85' or 119" work great)
USE: The top connector is for the 300 ohm unbalanced output, and the side connector is for a ground rod or radial connection.The SO-239 input connector shield/ground is shared with the ground connector.For best results use a feed line choke between the CU-6-1500 and the coax input to isolate the coax from becoming part of the antenna. Our Maxi-Choker (MC-1-3000) is an excellent companion for this unun.
CU-6-1500 and CU-6-5000 are in a 4" x 4" x 2" NEMA enclosure and weighs 2 and 4 pounds respectively. Both are customer made to order so expect 14 days shipment after order.