2.5:1 Unun

This is a hight-power unun ( unbalanced to unbalanced ) transmission line transformer designed to match 125Ω  to 50Ω . 

It has a constant impedance transformation ratio of 2.5:1 from 1MHz to 70MHz. The efficiency is 98 percent

Technical specification :

Type :                                               2.5:1 Current Balun

Frequency :                                      1MHz – 70MHz

Input Impedance:                             50Ω

Output Impedance:                          125Ω

Typical insertion loss:                       less than 0.15 dB

Power Handling(CW/SSB) :             600W /1KW and 2KW of peak power

Core Type :                                      FT240-43 by Fair-rite® Co.

Wire type:                                         Enamel copper wire 1.6 mm (AWG 14)

 Insulation type :                               PTFE

Performance

See Performance Plots

Package Contents

You get what you see.

FT240-43 core by Fair-rite® winding with  Enamel copper wire (AWG 14)

Assembled and tested.

This transformer requires a feed line choke to isolate the coax feed line from the antenna.

SHIPPING

We ship worldwide from French by Registered Air mail with tracking number.

Your item will be shipped next business day once payment received.

Delivery time depends on destination and Customs, usually it takes about 10-25 business days.