CW Dxing eQSL Card
Received some eQSL cards tru eQSL.cc I'm not demanding for their QSL cards when i…
IEEE 802.22 Akan Menggunakan frekuensi TV VHF dan UHF
The IEEE has recently released the new 802.22 standard for Wireless Regional Area Network (WRAN)…
Antenna Tuner
An antenna tuner, also known as a transmatch, is a device for correcting an impedance…
Duplexer
A duplexer is a device that allows bi-directional (duplex) communication over a single channel. In…
Antenna Loading Coil
An antenna loading coil is an inductor placed in series with an antenna element in…
What Is Cavity Filter
Cavity filters are the basic circuitry behind a Duplexer and are sharply tuned resonant circuit…
APRS And Kenwood
Bob Bruninga WB4APR talks about his relationship with Kenwood and APRS The Kenwood TH-D7AG Data…
How Make Your Own G5RV Antenna
How Make Your Own G5RV Antenna
Short Wave Listening Fun
Shortwave listening demonstration. Hear a sampling of foreign and domestic broadcast stations, time standard signals,…