EI7BA's Amateur Radio Pagesupdated
- Multi Band Quad,Cushcraft R5, R7, R7000, repair and maintenance, Remote Antenna Switching, Hexagonal Beam, Automatic Band Decoder, Low Band Verticals, Crank-up Tiltover Tower etc
Pravacy Speaker PMR446
- We are a leading developer and manufacturer PMR446 in Korea. Our new developed PMR446 model no. IFR-100 has new function like as private speaker it allow not to speak out from the radio and only you can hear the communication by using a private talk mode.
SH5 Contest Log Analysis
- SH5 is an easy to use ham radio contest logs analyzer which creates a variety of statistics in HTML format from the Cabrillo format log. Run under Windows and is free to download, by the makers of TR4W
Build A Vector Network Analyzer
- The VNA (vector network analyzer) is an essential tool for measuring the complex impedance of a circuit at a given frequency. Article on how to build a Impedance analyzer.