CQ WPX made my day

From time to time I have heard of those of who manage to contact 100 DXCC countries during one weekend. This past weekend it was my turn to try.

If you have a contest station with 1 kW and monoband yagi antennas, then this goal shouldn't be too hard. But for my station with only an 80 m long horizontal loop (loop skywire) circling its way through my garden from treetop to treetop and 100 W of transmitter power from my K3, the challenge was greater.

About 6 hours before the end of the test and with 87 countries, I had almost given up so I sent the tweet above. The status for the second day of the contest was that I had only worked two more countries.

But then in the final hours I heard and then contacted Tunisia, Malaysia, Australia and Kosovo (Z6) to bring me to 91, and then Laos and Albania. But then it took a long while for some new ones: Spanish Africa (EA9) and Argentine. I also managed two more Caribbean stations (J3 and CO) and Peru and Sardinia.

Finally in the last hour of the contest two more Caribbean stations (PJ2 and VP9) and in the end Mexico 21 minutes before the end of the contest. That brought the total to 102. I think that was needed as Kosovo isn't really an approved country and I also had contact with what was probably a pirate and not a station from Andorra. That signature was C31XR which most likely is the name of an antenna and not a real station.

My total was 47 European countries, 19 from Asia, 12 from North America, 10 from Africa, 9 from South America and 3 from Oceania. I think it helps to be in Europe as I had almost half of the countries quite close by, but it would be interesting to hear comments from North Americans on how realistic they consider this goal to be from their location.

What's in a name - radio societies all over the world

The IARU HF Championship took place this weekend. This is the contest where every country has national stations which exchange the abbreviation of the radio amateur society. Therefore it was an opportunity to reflect on what the names of the national societies mean. Many of the names in the IARU list portray the heritage of a hundred years. It is not so strange then that this may make some of them hard to understand and even a bit old-fashioned.

Starting with the ARRL - American Radio Relay League or NRRL (Norwegian ...) then this is about a network of stations relaying messages in a country with large distances. This is a bit 1920's to me. Looking at the ARRL web page it looks as if the the ARRL agrees and really would like to modernize the name to the National Association for Amateur Radio. The Portuguese may already have modernized it a bit by the use of network instead of relay: "Rede dos Emissores Portugueses"  (Network of Portuguese Transmitters), or perhaps it is just because this is the same word as "relay" in Portuguese?

Young operators in All Asian contest

The All Asian DX Contest is one of the more fun ones to participate in. One thing is the DX aspect of it, but I like it also because of the exchange of the age of the operators. In other contests one exchanges boring stuff like serial number 1, 2, 3, ... ; the CQ or IARU zone (14 and 18 for me); or the power output. But exchanging the age of the operators gives a little glimpse of the person behind the radio on the other side.

It also makes it possible to make a graph of the distribution of age. I had 62 contacts this weekend, of which 55 were unique. They were mainly in Asiatic Russia and Japan. The average age of the operators was 51.6 years - 7 years younger than me - and the graph shows the distribution. The bar for e.g. 54 is the percentage, 20 in this case, of operators in the bracket 50-54 years and so on.

The graph actually makes me quite optimistic concerning the future of ham radio. There are many young contest operators out there, at least in Asia. This resonates well with what others are saying also. Never before has there been so large activity on the bands as during contests these days.

The most interesting contact in the CQ WW Contest

Sometimes looking up remote stations on QRZ.com or other sites gives a glimpse of the person behind the callsign. I did this for the Chinese station BY5CD which I contacted on 40 m during the CQ Worldwide contest this weekend.

It turned out to be a club station called "YinZhou Middle School Amateur Radio Club Station" which is located just south of Shanghai.

It is interesting to consider the age of the operators as one can see from the picture. More pictures and some information can be found on their QRZ.com website. With this many young people entering ham radio in China, maybe we will see more stations there in the future. The number of stations is unreasonably low compared to the enormous population of China.

And the most interesting signal was that of GM5X on 21 MHz at 1207 UTC on 25. November. It had a distinct echo which seems to indicate that the signal travelled both on the direct path of about 800 km and the long path of about 39200 km.

The image shows "GM5X GM5X Test". The long path signal seems to fade in and out as there is much less of it in the last part, the word "test", than in the second "GM5X".

Wire antennas for DX: Pair of doublets

At my summer cottage (58° N, 9° E), I have two crossed doublets with their centers on the top of a mast as shown in the image. Of course, I would like to have had a rotatable beam antenna, but lacking that, this is a wire antenna substitute with acceptable performance. I use them for DX-ing and participation in contests like the IARU HF contest in July. The first antenna is a 26.8 m (88 feet) doublet and the second one at 13.4 m (44 feet), which was erected last summer, is half this length. Switching between the antennas sometimes makes a difference of 4-5 S-units of signal strength, but usually less.

25 part transmitter for the QRP Minimal Art Session

My Minimal-Art-Session rig shown here was made for class B of the QRP-MAS competition which is in May every year. In class B the transmitter should have a maximum of 50 components, and the fewer the number of components, the more points one will get per contact. With such simple rigs, only CW is viable.

This rig was made by combining ideas from several designs that I had seen and it was finished the same day as the competition. I ended up with 22 components in the transmitter except for the output filter. The rules say that no matter what, the output filter counts as three components. I guess this is in order that no one is tempted to simplify the filter too much and start emitting harmonics.