On the Friday before the CQWW contest, we replaced the antenna on the main mast. We replaced the original 2-element DKZ7B for 14 MHz with a dual-band ECO 247 antenna, which operates on the 7 and 14 MHz bands:
| Max. power | 1.6 kW PEP |
| Gain | 4 dB/40 m, 3.5 dB/20 m |
| F/B ratio | 25 dB at 20 m, 15 dB at 40 m |
| Boom length | 5 m |
| Longest element | 13 m |
| PSV | 1.1/20 m, 1.2/40 m |
| Weight | 26 kg |
Of course, the antenna also got a new Yaesu rotator. Getting the antenna up in the air required a tremendous effort from everyone involved, but the result was definitely worth it.
Installation of the ECO 247 on a mast
Reklama
