4 Square Antenna Experiences, FT-817 Portable Antenna, A simple 20-40 dipole, Installing a Mobile Rig In a Silverado, YouKits, A centre-fed co-axial dipole for 4-m, SARK-110 Antenna Analyzer, SDR-Radio.com, MNM4SDR, Collins 618F-1A VHF Aircraft Transceiver,