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
FSB61-3/8, ID=3/8", RFI Range 200-2000 MHzProduct DetailsInitial Permeability (@ 10KHz): 125Material: NiZnMax cable size - in/mm: .388/9.85OD (A) - in/mm: .906/23ID (B) - in/mm: .4/10.15Length (C) - in/mm: 1.55/39.4Z (ohms per bead - single turn 100 MHz): 180Z ohms (per bead - single turn 250 MHz): 285Z (ohms per bead - single turn 500 MHz): 380Z (ohms per bead - single turn 1000 MHz): 430Ferrite Snap On, ID = .40 in/10.15mm, Mix 61
Typical applications: Video, Ethernet, high speed/frequency data lines, computer I/O cables, Satellite/Cable TV/DSL lines, UHF/VHF coax transmission lines
This item is special order and not stocked. Please allow 7-10 days processing befor shipment
Ferrite Snap On, ID = .40 in/10.15mm, Mix 61
Typical applications: Video, Ethernet, high speed/frequency data lines, computer I/O cables, Satellite/Cable TV/DSL lines, UHF/VHF coax transmission lines
This item is special order and not stocked. Please allow 7-10 days processing befor shipment