Balun to match your multiband antenna to 50 ohm

There is many baluns on the market for sale or many home made stuff

• 9:1 for Longwire/random wire
• 6:1 or 4:1 to use for Windom or Doubble Extended Zepp Antenna
• 1:1 as RF choke or to stop radiation back to the shack on the coax line

9:1 balun on a Amidon T200-2 is 11 Trifilar woundings for longwire,beverage etc.

1:1 to balun on a Amidon T200-2 is 11 Trifilar woundings straigth

4:1 balun on a Amidon T200-2 17 woundings Bifilar

6:1 balun on a Amidon T200-2 with 10 Bifilar woundsings, but tapped on the 8 turn

MHz chart for different Powder Cores

Windom balun articles

• Windom_2007

Balun Articles

• Balun Short Version Powerpoint
• M0UKD 9:1 Magnetic Longwire Balun
• 9:1_Balun for End-fed Longwire/beverage?
• 41balun-3.pdf
• AAR2EY_NVIS_Antenna.pdf
• B2 balun-compilation.pdf
• Balun Manual Final.pdf
• Balun All part.pdf
• Balun-32-18 Rev.B-Web.pdf
• Balun UN B 800 612 450 Rev B WEB.pdf
• UN-UN 1 to 9