A wire antenna feeded with an unsymmetrical feed and a 1:4 balun can be tuned from 6 to 80 meters band but can be noisier than a dipole and cause RF in the shack
4:1 FB 3061 ROD x 2 balun can handle 125 Watts
A home made 4:1 Ferrite QRO Bal-un with a FB 241-61 Type K
High performance, IPX7 waterproof small solar panels and battery packs to power radios, sensors, and other portable devices. Solar panels are UV and scratch resistant for long-term use in the field.
Amateur Radio site including Curcuit Diagrams, Antenna Construction, Radio Repairs, and serious fun. The Ham Radio Website for Ham Radio and Electrical Engineers, with mods, circuits to build, manuals and projects
JT65 software download archive for all JT65 editions, includes a JT95 and JT9 operating mode informations, JT65 reference website for Japanese operators.
Quanzhou Risen Electronics Co., Ltd is a leading supplier of wireless communication equipment, produce Marine, HF SDR Radios, Repeaters, PMR Radios, Digital Radios based in China
Sperimental Radio,International DX Group, Sugar Radio, radio group established in 1986
Ham Call Lookup is an windows phone app that allows you to perform amateur radio callsign lookups via QRZ.COM. It also incorporates DX cluster feeds, DXCC information retrieval and Solar data all within one application on your Windows Phone. For callsign lookups, the application uses the QRZ.COM XML interface, please register at QRZ.COM for an account if you do not already have one. The application will happily work with a free QRZ.COM account although it is recommended to use a paid account, as a minimum the XML Logbook Data paid option, in order to access the full functionality of callsign lookups within the application.