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"Wavescan" is a weekly program for long distance radio hobbyists produced by Dr. Adrian M. Peterson, Coordinator of International Relations for Adventist World Radio. AWR carries the program over many of its stations (including shortwave). Adrian Peterson is a highly regarded DXer and radio historian, and often includes features on radio history in his program. We are reproducing those features below, with Dr. Peterson's permission and assistance.

Wavescan N552, September 22, 2019

Small Country, Two Large Radio Stations: Sud Radio

That small country was Andorra in the Pyrenees Mountains between France and Spain, and the two large radio stations were Radio Andorra and Sud Radio. On this occasion here in Wavescan, we examine the long, convoluted and interesting history of the large radio station in Andorra that was known best under its third title, Sud Radio.

During the more than 40 year history of the original Radio Andorra, six different transmitters have been used for program broadcasting. Likewise for Sud Radio; during its quarter century history, a total of four transmitters were used. A summary of these two sets of commercial radio broadcasting transmitters shows:

Both stations, Radio Andorra and Sud Radio, were large scale commercial operations with huge audiences in France and Spain and beyond, as well as in Andorra itself, though neither station was a financial success. Generally speaking, Radio Andorra was Spanish oriented, and Sud Radio was French oriented. There was strong competition between the two stations, for listeners as well as for advertisers, though there were a few occasions when a touch of co-operation might have been advantageous to them both.

Actually, Sud Radio in Andorra began as an organization in 1951 under the legal name Andorradio, though this title was very confusing due to the similarity in name with the already established, 12 year old Radio Andorra. The new Andorradio/Sud Radio was established in Andorra in an attempt to circumvent radio regulations in France itself, which back then prohibited the operation of commercial and private radio stations.

As such, its main competitors were Radio Monte Carlo, Radio Luxembourg, and Europe No. 1 from the Saarland in Germany. Radio Monte Carlo, of course, had a strong signal on 205 metres (1463 kHz) mediumwave. But all three stations operated very high powered transmitters on longwave which pretty much blanketed the country. Andorradio/Sud Radio was therefore very much the weakest of the four French competitors.

Within the first four years of its operation in Andorra, the offices and studios for the new Sud Radio were located in three consecutive though nearby locations, each on Galeries Merritxell (Merritxell Avenue) in Encamp. Interestingly, each of these three locations was also quite close to the two operational buildings in use by the original Radio Andorra.

The first of the three consecutive studio/office locations for Sud Radio was listed simply as Encamp; the second location was in Casa Filipo; and the third was at 7 Avenida Merritxell. At that stage, their postal address was, interestingly, Post Office Box 7, Andorra la Vella.

Preliminary test broadcasts from Andorradio/Sud Radio were noted in 1954, though the station was not officially inaugurated until four years later, on September 18, 1958. Two transmitters were on the air at that stage; a 100 kW Thomson transmitter on mediumwave 1485 kHz, and a 1 kW on a shortwave channel apparently somewhere around 6 MHz. There were lengthy occasions when the shortwave transmitter was listed as silent.

The initial location for both transmitters for Sud Radio, mediumwave and shortwave, was adjacent to the studio locations in the valley at Encamp, which was almost completely surrounded by high mountains. Mediumwave signals were radiated from a single mast supported by cables, and shortwave signals were radiated from another though quite simple antenna system. Propagation results from this mountain-enclosed location (as would in reality be expected) were described as “disastrous”. That original transmitter location on Merritxell Avenue in Encamp was on the air for approximately 7 years, from 1958 to 1964.

One year later (1959), the 100 kW transmitter was operating on 818 kHz, and the 1 kW experimental shortwave transmitter was operating, officially, on 3145 kHz only. However, the shortwave signal was also noted in Europe also on 6305 kHz, which was initially denied by station staff, though the 6 MHz channel was indeed subsequently acknowledged.

It may be that the Andorradio frequency of 6305 kHz was simply the first harmonic of a slightly mistuned fundamental frequency of 3145 kHz. Mathematically, 3145 kHz x 2 = 6290 kHz, just 15 kHz lower than where they were actually heard.

On March 29, 1961, the Andorra government signed legislation that approved a 20 year period of operation for both radio stations, Radio Andorra and Andorradio/Sud Radio. Because of the similarity in name for the two large radio stations, Radio Andorra and Andorradio, and the obviously resultant confusion, the name for Andorradio was officially changed at that stage in French to Radio des Vallees d'Andorrre, that is, Radio of the Andorra Valleys.

Radio Andorra of the Valleys, station announcement on 818 kHz.

In 1963, there was an intent to increase the power at Radio of the Andorra Valleys on shortwave from 1 kW to 10 kW. However, during that era, FM broadcasting was gaining popularity worldwide, so instead of remaining on shortwave, this station went to FM, both in Andorra itself, and soon afterwards within France also.

In an endeavor to improve the mediumwave coverage area for Sud Radio, a new location was sought, and an isolated area on the summit of Pic Blanc, White Peak, close to Andorra's eastern border with France, was finally chosen. The program feed from the downtown studios to the isolated country transmitters was accomplished by an underground cable as well as by a microwave radio link.

The new transmitter station at Pic Blanc was taken into service in 1964, with a 300 kW Thomson transmitter on 818 kHz. Soon afterwards, the original 100 kW transmitter at Encamp was removed and reinstalled at Pic Blanc, and there was an attempt to combine the output of both transmitters in order to increase the international coverage from Sud Radio.

On October 23, 1967, the famous World War II French leader, General Charles de Gaulle (as President of France at that time), made a visit to the Pic Blanc transmitter station while on a state visit to Andorra. It was during this era that Radio des Vallees d'Andorrre, that is, Radio of the Andorra Valleys, officially became Sud Radio, South Radio. Give a few more years (1972) and another Thomson mediumwave transmitter, rated at 600 kW, was installed, thus permitting a combined output power of 900 kW.

Sud Radio identification announcement.

The 20 year period for the licenses of both Radio Andorra and Sud Radio was coming to an end during the year 1981. Both stations needed a license renewal; but instead, they were both surreptitiously closed, in an edict promulgated by the Council of the Valleys, the Andorran version of federal parliament.

It was on Thursday, April 2, 1981, soon after 1900 UTC, that both Radio Andorra and Sud Radio were closed. One of the main problems, though by no means the only problem, was that the two large radio stations were serving an international audience with their radio programming, with very little programming intended for local coverage within Andorra itself.

Interestingly, four days later, Sud Radio was again on the air in Andorra, though by that time additional production studios were already in use in France itself. Then, on November 24 (1981), the French government extended the license for Sud Radio in Andorra due to the nationwide elections in France.

In March 1983, the Pic Blanc transmitters were noted on air again, and the station remained in spasmodic service for apparently another four years. In 1987, the station was finally silenced, and partially dismantled, though by this time Sud Radio was on the air via a small network of stations within France itself.

Since then, Radio Catalunya in nearby Spain requested usage of the Pic Blanc transmitter site in 2004, though this request was never granted. A subsequent suggestion has been to turn the mountain top building into a snow sports stadium, though this concept has not yet been fulfilled either. Currently, guided tours take visitors through the station, and much of the electronic equipment is still installed, but certainly not all.

Next time: The Radio Wars in Andorra.

Back three years ago, we presented a series of topics here in Wavescan on the radio scene in the South Pacific Cook Islands. OK, now fast forward to the current era, and we find that the two latest editions of the New Zealand DX Times provide us with an update on the current radio scene in the Cook Islands, and that is what we present here in Wavescan today. This interesting information is also available on the Cook Islands website.

The 350 feet tall mediumwave mast at the Matavera transmitter site has been in use for many years, and due to the salt water atmosphere, it has become quite rusted, particularly in the mid-section. As a safety factor, it was necessary to demolish this tall radio tower.

Radio broadcasting came to the Cook Islands in 1954 under Percy Henderson, who constructed the first two low power transmitters, mediumwave and shortwave, with used equipment provided by the New Zealand Broadcasting Service. The original transmitter location was at Blackrock, on the western edge of Avarua on Rarotonga Island.

Fourteen years later (1968), a new Marconi transmitter with 10 kW on 630 kHz was installed in the grounds of the Takitumu School at Matavera, on the eastern coastline of Rarotonga Island. The older Blackrock station was then relegated to backup status. In preparation for the demolition of the radio mast, the activities of the Takitumu School were transferred off campus to a temporary location.

At midnight on Wednesday, August 7 (2019), the mediumwave transmitter was turned off for the last time, thus ending the usage of mediumwave in the Cook Islands, and the radio tower has since been demolished. The shortwave service came to an end more than a quarter of a century earlier, back in 1993, due to a malfunction in the transmitter itself.

A low power FM transmitter on 101 MHz had already been on the air in parallel with what was the mediumwave service, thus providing radio coverage to much of the capital island, Raratonga. Portable FM receivers can tune this 101 MHz channel, though the FM radio receivers in motor vehicles imported into these islands from Japan tune only the Japanese FM Band 1, and not the standard American FM Band 2, and they don't tune up as far as 101 MHz.

In addition, the low power FM relay stations in the southern group of the Cook Islands are currently inactive due to technical faults, though the low power FM stations in the northern group of islands are all currently on the air with a relay from Rarotonga via the internet. Work is underway to upgrade the entire FM network, and to change the operating frequency of all of the low power FM relay stations from current 88.8 MHz to the new 101 MHz.

In case of any form of nationwide emergency in the Cook Islands, such as hurricanes and tsunamis, it is currently possible to obtain rapid nationwide coverage via the internet, as well as by FM radio, and also by nationwide low power TV. However, with local shortwave and now mediumwave off the air, as well as the earlier closure of Radio Australia, it is considered that the Cook Islands really need a more adequate single source for the rapid dissemination of emergency information throughout their twelve populated islands.

It is considered that reactivation and upgrading of the old Blackrock station is unadvisable, and a current investigation is looking into the possibility of a new mediumwave station at another suitable site.