9:1 UnUn 250w

A 9:1 UnUn for use on HF (1.8-30MHz) with up to 250w RF power.  For use with "random" end-fed wires.

Use of counterpoise/radials is advised.

• 9:1 ratio (450>50-ohms)
• FT240 ferrite core (not iron powder!)
• Use with random end-fed wire or vertical - or see our End-Fed Halfwave Coupler
• SO239 coax input and M4 (4mm) terminals for aerial+counterpoise
• 80x85x55mm
• Sealed with potting-compound - fully weather-proof
• All fixings are stainless-steel
• Weight: 300g

We like CB19917 from CPC for our aerial wire