• Accessories
• Antenna theory
• Baluns
  • A 1:1 Coaxial Balun
  • A 1:6 Balun for dipole antennas
  • How To Make A High Power 4:1 Balun
• HF Antennas
• Push pull 2m amplifier
• Shortwave Antennas
• WD5HOH Regenerative (REGEN) Radio Receiver
• VHF Antennas

• A Beginners' Guide to Amateur Radio
• Analyzing UHF signals using FFT programs.
• Ham Software
• Kenwood TS-2000 review
• Radio Modifications
• Understanding propagation numbers
• Web Shortware Receivers

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Baluns

• A 1:1 Coaxial Balun

  This balun documented by I0QM use a ¼ wavelength and the ¾ wavelength adapting sections with the 50-Ohm coaxial cable,  or a coax line with the impedance you need.

• A 1:6 Balun for dipole antennas

• How To Make A High Power 4:1 Balun

  Homebrewa 4:1 balun