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
Ham Radio Outlet Products
HRO stocks many Palomar Engineers products including RFI solutions and antenna products.
Need a quick overview to solve your RFI problem? Click on the RFI Cheat Sheet or RFI Solutions Tip Sheet
Palomar Engineers Antenna Info Sheet
Ham Radio Outlet Products
HRO stocks many Palomar Engineers products including RFI solutions and antenna products.
Need a quick overview to solve your RFI problem? Click on the RFI Cheat Sheet or RFI Solutions Tip Sheet
Palomar Engineers Antenna Info Sheet
