Antenna memories (1992)
Below, an annotated picture of my antenna setup, taken in 1992 (click on the photo to enlarge). Some years later, I moved to a different QTH and unfortunately, I did not have the opportunity to put up the mast again:-(
Author Archives: PA2S
Cycle 21 Crossband memories
Have a look at some of the QSL cards received from stations who were permitted to transmit on 6 meters. I could only listen or talk back on 10 meters. At the time, most 6 meters stations listened around 28.885 MHz. Conditions were so good, that I could hear European stations via backscatter on 10… Continue reading »
Tip: adjusting height could minimise noise
Today, I was working on my inverted V for 60 meters. One of the major problems is man made noise, from sources like switch mode power supplies etc. I noticed different noise levels as I changed the height of the wires. I decided to play around with the wires and I was able to null… Continue reading »
Ionospheric Map
The map below shows the near real time F2 critical frequencies. The map is published by the Australian Bureau of Meteorology.
50 MHz Study
When the 50 MHz permits were issued in The Netherlands in 1988, it was agreed with the authorities that we should report about the results of the experiments on 50 MHz.
The aim of the study was to correlate 6 meter openings to environmental properties, like solar flux, magnetic activity and the like.
50 MHz Tonna modification
Have a look at the PDF and see how to double the ERP of your station (and will receive better as well…)