Maandelijkse archieven: september 2014

TX BPF 5B4AGN

New bandpass filters for our contest station PI4M. Based on the famous W3NQN design, delivered in a kit by 5B4AGN. I’d like to the to do the solderwork, espacially SMD. Winding the coils is not by cup of tea, so this credits goes to PI4M member Kor, PA0KDV. 3kits available now, maybe more in the future…

160m Inverted L

For the big contests the crew of PI4M are always busy to improve their antennas. For the upcoming CQWW SSB contest, we need a better antenna for 160m.
We have chosen for an inverted L. More pictures and info available after CQWW SSB 2014

Hardware needed:

-Vacuum capacitor 1000pF
-18m Spiderbeam pole
-12.5m Spiderbeam pole
-18 radials 20m each
-radial groudplate
-53m wire