1:1, 9:1, 49:1 Matching Units - What's the difference? - YouTube
Copy of Balun 9:1
Amazon.com: Balun One Nine v1 - Tiny Low-Cost 1:9 HF Antenna Balun and Unun with Antenna Input Protection for Ham It Up, RTL-SDR, HackRF and Other HF-Capable Radios. Great for DIY Dipole
Antenna 9:1 impedance transformer for the RTL-SDR to connect long wire 100k - 50Mhz (BALUN)
9:1 UnUn QRO
9:1 Magnetic Longwire Balun / Unun – M0UKD – Amateur Radio Blog
Balun 9:1
Balun 9:1
9:1 UNUN | eBay
50:450 Ohm (9:1) Balun for vertical antennas - The DXZone.com
9:1 Magnetic Longwire Balun / Unun – M0UKD – Amateur Radio Blog
DK7ZB MTFT-Un-Un
DIY 9:1 Unun End Fed Random Wire Antenna for Ham Radio - YouTube