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15 Meter L7 HamLoop


This antenna has seen better days as it has been up for about 6 months
post 04 Apr 2024
15 Meter L7 HamLoop

Antenna 15m 21 MHz Links

25



6 elements OWA Yagi for 21 MHz
This is a high-gain, wideband OWA Optimised Wideband Array Yagi which covers the whole of the 15m band

7elements 21MHz OWA Yagi
Yagi which covers the whole of the 15m band with an SWR of less than1.1:1

3el. 15m monoband yagi
Actual design of a single band yagi using the Yagi Optimizer software


Linear-loaded-short-dipole-21mhz

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

Atu balanced feeder antenna system

Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR