"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 446, July 20, 2003
The Sound of Silence
On many occasions in the United States and Canada and Australia, commercial radio stations have experimented with the idea of a few seconds of silence on air during a paid advertisement. However, on each occasion it has been discovered that this period of silence turns out to be a real annoyance to the listeners, and the stations usually receive a barrage of phone calls from irate listeners enquiring what is the problem.
Back in the old Juke Box days in restaurants and cafeterias it was also possible for patrons to insert a coin into the slot and buy a few minutes of silence rather than continually listening to what they considered to be the strident sounds of loud popular music.
With a touch of radio humor in the earlier days, sometimes a new announcer at Radio Ceylon in Colombo Sri Lanka was requested to make a special announcement. When the electricity throughout the city had suddenly shut down, he was told to go into the darkened studio and make an announcement, something of this nature: "We have a special announcement for all listeners. If you are unable to hear our broadcast on your radio receiver at this time, please be patient. The electricity is off throughout the city. When the electrical service is restored, we will again return to the air and you will again be able to receive our programming on your radio receiver."
However, of more substance was a recent period of transmitter silence ithroughout the country of Bulgaria. Back in September last year. there were numerous complaints that one of the local transmitters of Radio Bulgaria was causing interference with the communication transmissions from the Sofia International Airport. Although radio engineers had carefully checked for the cause of this problem, they were unable to locate the offending transmitter.
Thus it was that all radio transmitters in Bulgaria operating on longwave, mediumwave and shortwave were switched off consecutively according to a rolling schedule in order to discover just which transmitter was causing the problem. However, it was quickly discovered that none of the radio broadcasting transmitters within Bulgaria was causing the problem, and it was conjectured that the real culprit was a pirate transmission from a neighboring country.
On another significant occasion, all 1700 radio broadcast transmitters throughout Spain left the air at 8:30 am on Wednesday, October 4, back in the year 1995. The purpose of this strange exercise was to impress listeners with the importance and necessity of radio throughout their nation.
This unusual event produced the desired results, and the telephone system was overloaded with listeners calling their local radio stations, enquiring what was the problem. This experiment of co-ordinated radio silence was declared to be a grand success.
There was another notable time of radio silence, this time
all throughout the world, as the chronographer of history tells
us. On July 20, 1937, the grand old man of radio, Guglielmo
Marconi, passed to his rest. The information was quickly
told to the world, and all radio stations fell silent for a period
of two minutes to honor the memory of radio's greatest inventor,
and to mark the time of his death.