AT-68/UP Waveguide Horn

UP horn antenna for use as a test antenna or temporary dish feed
post 05 Feb 2024
AT-68/UP Waveguide Horn

Antenna Calculator Links


A Simple Seven Element Yagi Antenna
calculate the dimensions for a seven element Yagi-Uda Antenna. Simply enter the freqency in Megahertz

RF Balun Calculator
The formula/equation for this RF Balun calculator is also mentioned. The calculator is for RF LC balun type

Calcolo di antenne dipolo verticale loop


Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band

Rx antennas 4Square Rx Vertical Array

Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m

A simple SWR Meter is to be used at HF

A simple SWR Meter is to be used at HF An SWR meter provides information about how well matched is your antenna with the transmitter and how well power is being radiated