Continued from ANTENTOP- 01- 2010
Antenna for 10- MHz
Kononov, UA1ACO, St.-Petersburg
Credit Line: http://ehant.qrz.ru/exp_eh31.htm
In three weeks the winter came in my town. I made more
the 100 QSOs with 25 countries using power 30- Wtts. Antenna was
covered by snow but it is worked. I did lots QSOs with the snow-
EH-Antenna. As rule I could make QSO with any station that I heard.
It seems that the weather did not influenced
onto the antenna. Really when I measured parameters of the antenna
I discovered that it were unchanged. Figure 8 shows Flat EH- Antenna covered with snow.
Snow fall, then thawed, and again fall down. Antenna
was still working. However I decided to bring the antenna indoor
and checked it. Antenna begun to thaw out and water was coming
from the antenna. From hermetic (as I believed) coupling water
begun to drop. I remove caps from the coupling and discovered
there near 10 grams of water. Figure 9 shows water dropping from
Conclusion- simple “Glue- Gun” sealing cannot provide
full hermetic. After the antenna was fully dried, I checked the
antenna parameters (they were unchanged). Then the antenna was
assembled again, covered “protected” bag and installed at the
old place. Figure 10
shows new installed Flat EH- Antenna.