5:1 CUBE™ Unun – Model CU-5-1500 (50:250 Ohm, 1.8-61 MHz, 1.5KW PEP)
Application. For traveling wave, end fed or portable 20-31 foot vertical antennas the 5:1 unun makes a good transformer for converting 50 ohm coax to a 250 ohm feed point. If you use the antenna on multiple bands, the feed point impedance may not always be 250 ohms and use of the unun at high (>350 ohms) or low (<100 ohms) will require reduced power input or the unun may have its power ratings exceeded and damage to the unun may occur. The (5:1 conversion ratio will change for loads other than 250 ohms unbalanced.
Typical application:
Also available as a balanced output – CB-5-1500
Complete Antenna Systems
Choose from OCF, Vertical, Loops, Zepps, end feds using Palomar Engineers Over-Engineered to Outperform(TM) impedance transformers and feed line chokes for outstanding antenna performance!
Palomar Engineers Antenna Info Sheet
Complete Antenna Systems
Choose from OCF, Vertical, Loops, Zepps, end feds using Palomar Engineers Over-Engineered to Outperform(TM) impedance transformers and feed line chokes for outstanding antenna performance!
Palomar Engineers Antenna Info Sheet
