Nice radio-related stamp

A few weeks ago I had one of my rare visits to the post office. As I was waiting, I saw a display of a new series of stamps and I just had to buy the one shown here. What caught my attention was not really the artist, but rather the Kurér portable radio.

The stamp was of course not about the radio but was issued in commemoration of the 100 year anniversary of the birth of Alf Prøysen. The English Wikipedia page has this to say about him:

Bletchley Park, Enigma, and GB3RS

Enigma (Photo: R. Holm)

Bletchley Park, northwest of London (between Oxford and Cambridge), is one of the best known British sites from WW2. Its fame goes back to the breaking of the legendary Enigma cipher machine and its successor, the Lorenz cipher machine.

In order to perform this work a large effort in the development of early computers took place here. They include the mechanical Bombe for breaking the Enigma, and the valve-based Colossus for breaking the Lorenz.

The Bombe was reconstructed through a 13 year effort that resulted in an Engineering Heritage Award in 2009.

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?

The radio amateur who felt compelled to abandon his own call sign

If you mention that you are a radio amateur to any Norwegian who was old enough to watch TV in the mid 70's then he is bound to respond with LA8PV. This was the callsign of the fictious figure Marve Fleksnes in the comedy the "Radiot". To bad for the poor guy who actually was given that callsign some years later. I had contact with him on CW (= morse) in 2002 just after I got my license and I just couldn't believe that anybody actually was using that particular callsign.

It was in 1976 that Rolv Wesenlund (1936 - 2013) one of Norway's most popular comedians, played Marve Fleksnes. As radio amateur LA8PV he talks with his friend JA1NQ in Japan. He also speaks with TF3XU on Iceland in a mixed Icelandic/Norwegian dialect which is always a hit with a Norwegian audience. He then converses with Norwegian/American WONBF (no zero) in Minnesota. He has to handle his angry neighbor who suffers from interference (RFI) and finally LA8PV gets the opportunity of a lifetime when he hears the emergency call, Mayday, in the 15 meter band.

QOD7 - Can you communicate with me in Norwegian?

The Oseberg viking ship, 820 AD

Not so many nationalities are included in the exclusive group of countries with their own Q-code. I mean of course the QOD-code. I have never heard it used by radio amateurs, but it must have played a role some time ago in shipping.

The Q-codes date back to 1912 and were meant to be a short-hand for use in telegraphy. According to the list of Q-codes which Ralf D. Kloth (DL4TA) has on his web page, the meaning of QOD with a number added is: "Can you communicate with me in ... 0 Dutch, 1 English, 2 French, 3 German, 4 Greek, 5 Italian, 6 Japanese, 7 Norwegian, 8 Russian, 9 Spanish?" As a response to the question the meaning was "I can communicate with you in ..."

The reason for a separate code for Norwegian must be the historically large shipping fleet in Norway. This is still the case as graphically depicted in this overview of the Top 20 Ship Owning Countries, where we seem to rank as number seven - so QOD7 is appropriate!

But today all of them will QOD1.

Image from Wikipedia, user Karamell

Why do Norwegian callsigns end in A?

Well actually not all end in A, but almost all of the recent ones do. Amateur callsigns in Norway are not so well documented on the web, so here is a short explanation.

Norwegian callsigns are used in these territories:

• LA-LN for use in mainland Norway
• JW is used on Svalbard and close-by islands Hopen and Bjørnøya
• JX is used on Jan Mayen
• 3Y is used on Bouvet Island, Peter I Island, and in Antarctica (Queen Maud Land)

Depending on where I go, my callsign may be LA3ZA, JW3ZA, JX3ZA, or 3Y3ZA. We don't have districts so the number does not mean anything, except for 0. Callsigns with 0 are were reserved for non-Norwegian citizens, but this has stopped so LA0 callsigns are no longer issued.

Usually the callsign starts with LA, but why do so many of the LA callsigns end in A?

My grandfather's Blaupunkt radio

As I was clearing out my childhood home I came across an old radio that my father had tucked away in the basement. It was a German Blaupunkt radio, and what a historic dial it had!

It turned out that my father had himself found it as he was clearing out his childhood home many years before and that it had belonged to my grandfather who died in 1959.

It covers longwave, medium wave and three shortwave bands from 5.5 to 21 MHz. I had never before seen a radio with a dial given in meters rather than kHz or MHz, but I have later understood that that was not uncommon for pre world war II radios.

Since the back was missing, I had no information about age or type. The tubes which were all in the 11-series suggested the end of the thirties, but here it turned out that the dial had valuable information.

Nostalgia from LA3ZA in 1949

I wasn't even born when this LA3ZA QSL-card was issued in 1949. This is because I am second generation LA3ZA after my father. When the callsign was reissued to me in 2001 it had been inactive for 40 years or so.

I still have the Hallicrafters S40A receiver which my father used with a 2 W input homemade tube transmitter. The S40A (image below) was what introduced me to shortwave listening during the good conditions of the solar peak in the late sixties, despite its mediocre performance I would say.

Vintage Tektronix oscilloscopes

I first encountered this generation of Tektronix oscilloscopes in my first job at the Electronics Lab of SINTEF, Trondheim, Norway in 1978. Already at that time the main use for them was as heaters in the offices. That is, only if you wanted to work in the break between Christmas and New Year when the central heating was turned down.

Since then I have come across the two oscilloscopes shown here, and the collector (or is it hoarder?) in me has not been able to say no to them. They are really advanced for their time: regulated power supplies with tubes, ceramic stand-offs and lots and lots of tubes.

The  oscilloscopes are 541A and 543, from 1959 and 1964 respectively, it seems. The plug-in units are 1A1, L, M, and 53/54K plus the cart. The 1A1 actually seems even to have FET-transistors, not only tubes like the others. The units work, but how well they work I am not sure about as they have been in storage for the last 5-10 years.

A history lesson from call signs

World empires and colonies in 1914, also at
the time of the 1. Int. Radiotelegraphic Convention.
Source Wikipedia Commons, user Andrew0921

There's a lot of history to read out from amateur radio call signs. Being interested in history as well as amateur radio I found that for some countries you can actually figure out which time period it got independence just by looking at the prefixes of the call sign. But on the other hand the history of the international conferences and the call sign allocations is as complex as politics can be so this short blog post can only scratch the surface of this complicated topic.

I have always been envious of those radio amateurs who have a call sign starting with a letter that reflects their country's name. This seems to be the privilege of big and powerful nations, or countries that were just lucky in having names that didn't overlap too much with those of other nations. Among the 1913 call signs one can find: