The 2018 International Friendship Exchange (INFEX) and DX Contest took place on Feb 17th, 2018. DX1ACE participated from the National High School Dasmariñas.

OCF dipole for 40, 20 and 15 m on a 12 m fiberglass pole and commercial v-shaped multi band dipole
Girl scouts having fun with the radio
Dasmariñas National High School

80/40/30 m Dipole

For the lower bands I am using a 40/80 m trap dipole. In order to become qrv on 30 m, I added a radiation coupled lambda/2 element for 30 m, using 10 cm spreader. After cutting the additional wire to the right length, the resonance on 30 m is exactly at 10.1 MHz. The additional element has no influence on the resonance for 40 and 80 m, but the impedance on 30 m is with 150 Ohm significant higher than 50 Ohm.

10.1 MHz Impedance (141 – j34) Ohm – VSWR 3
7.1 MHz Impedance (40 + j1) Ohm – VSWR 1.24
3.6 MHz Impedance (27 – j5) Ohm – VSWR 1.9

Bread Baking Gallery

I am baking my own bread for years already, but in the past I did it mainly with a bread baking machine using commercial yeast. September 2017 I started my own sourdough, and over the last couple of months the breads became better and tastier. Important is a slow fermentation of the dough. Usually it takes at least 16 to 24 hours from the first dough to the final loaf.

28.1.2018 Potato Walnut Bread

25.1.2018 Light White Spelt

Continue reading Bread Baking Gallery

Linear Loaded Dipole for 20 m

As the propagation conditions getting worse for 15 m and 17 m, I extended my linear loaded dipole on both sides by 1.8 m in order to cover the 20 m band. SWR is ok without modification of the 1 : 4 transformation line.

Will see, how it works in the upcoming CQWW DX CW contest.