Ham Radio Projects
Collection of amateur radio projects, antenna designs, and technical articles.
80-Meter OCFD Antenna
A practical 7-band off-center fed dipole antenna designed by KK7MA. Works on 80M, 40M, 20M, 17M, 12M, 10M, and 6M bands with just the internal tuner.
- 135′ total length
- Fed at 33.44% (86′ 5″ and 43′ 5″ legs)
- 4:1 balun design
- Detailed build instructions
Lucky 5-Band Vertical
An accidental discovery - a 45′ mast that provides excellent performance on 160M, 80M, 60M, 40M, and 30M with SWR better than 3:1 on all bands.
- 45′ height using 9 sections of pipe
- No tuning required
- Simple ground connection
- Proven FT-8 performance
Future Projects
Stay tuned for more antenna projects and technical articles coming soon!
- Portable antenna systems for Field Day
- VHF/UHF antenna designs
- RF measurement techniques
- Balun construction guides