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
FB102-43 - 1/2" ID/12.8mm, RFI Range 25-300 MHz, Case of 212 or Multi-case discountProduct DetailsMPN: FB102-43Initial Permeability (@ 10KHz): 850Material: NiZnMax cable size - in/mm: .5/12.6OD (A) - in/mm: 1.02/25.9ID (B) - in/mm: .505/12.8Length (C) - in/mm: 1.125/28.6Z (ohms per bead - single turn 1 MHz): 15Z (ohms per bead - single turn 5 MHz): 60Z (ohms per bead - single turn 10 MHz): 91Z (ohms per bead - single turn 25 MHz): 145Z (ohms per bead - single turn 100 MHz): 235Z ohms (per bead - single turn 250 MHz): 275Case/Box lot size: 212Ferrite Slip On Bead, ID = .505in/12.8mm, Mix 43, case of 212 units.
THESE PRICES DO NOT INCLUDED SHIPPING WHICH WILL BE CALCULATED AND ADDED ON AFTER SALE DEPENDING UPON DESTINATION. CUSTOMER MAY ALSO USE THEIR OWN UPS ACCOUNT NUMBER FOR SHIPPING.
Ferrite Slip On Bead, ID = .505in/12.8mm, Mix 43, case of 212 units.
THESE PRICES DO NOT INCLUDED SHIPPING WHICH WILL BE CALCULATED AND ADDED ON AFTER SALE DEPENDING UPON DESTINATION. CUSTOMER MAY ALSO USE THEIR OWN UPS ACCOUNT NUMBER FOR SHIPPING.