Before removing the radials of the inverted L (in fact 2x inverted L for 160m and 80m, but connected to a common balun and common radial system) to restart lawn mowing, I conducted some tests to observe the effect of the number of radials on the impedance properties of the antenna. First with 10 radials, each 21m long, then with only 4 radials, and finally with a single one. It should be noted that there is a 1:2.47 balun present in this system.
I did the test for both 80m and 160m.
The winter of 2023-2024 is definitively over, and so is my 160m season. With 17 new worked and confirmed countries added, the counter reaches 95 confirmed DXCC entities on Topband. Only my QSO with JT1CO from 2022 remains unconfirmed.
With highlights including Yemen in FT8 and East Timor in CW, I can look back satisfied at a successful season.
Just 5 countries left on the way to the 10B-DXCC and only 4 zones needed for 160m WAZ.
It's sometimes astonishing how much can be achieved with limited resources. Last night, I was active on 30m in FT8, using 250W and the Optibeam OB1-30 dipole antenna at a height of 15 meters. Clear, the Optibeam dipoles are very good performers.
Below are the locations where my signal was received over a period of about ten hours.
After my bad experience with using the inverted L antenna on the higher bands, contrary to the results I had with it in FT8, I made a second attempt during the WPX SSB contest on 10 meter with 100W. It was a struggle for every QSO, but ultimately, I managed to work almost all continents with an antenna that was not made for it at all. So, anything is better than doing nothing.
