HADES-D: New FM Satellite for Amateur Radio Yesterday I was a bit disappointed when I could not hear anything on a high elevation pass of Amateur Radio on
Rhombic Antenna – A Broadband Antenna Rhombic antenna is a broadband directional antenna which was invented by Edmond Bruce and Harald Friis in 1931 and was considered king
What is Effective Antenna Aperture? Effective antenna aperture can be considered as the area from which the antenna receives electromagnetic radiation which is having the same polarization as
What are Smart Antennas? Usually we consider antennas as passive structures receiving and transmitting signals received by them. But smart antennas are antenna arrays with signal processing algorithms
Stealth Antennas in Amateur Radio In the olden days when TV antennas on the rooftop was a sign of prestige and a necessity for most homes, nobody would
What is a Ferrite Rod Antenna? Ferrite Rod brings back nostalgic memories of childhood when it was shown to me inside our old transistor radio by none other
What are Frequency Independent Antennas? Frequency independent antennas are theoretically those with no limitation of bandwidth, as the name implies. But in actual practice no antenna can be
First Look at EZNEC Pro+ 7.0 Antenna Modeling Software So far I have been trying out antenna designs built and tested by radio amateurs world wide. I have
Combining My VHF and UHF Yagis Into a Single Feeder Dual Band Satellite Yagi I had built seven element VHF and five element UHF Yagi antennas earlier. Both
How to Use hams.at for Posting Satellite Activations Recently I came across hams.at as a useful website by WW1X. It was VU2TUM who posted his satellite activations posted
