“Hesa Fredrik” silent when technology is exchanged – Expressen

“Hesa Fredrik” silent now on their way.

The classic warning signal is turned off and upgraded during the coming months.

– All upgraded not at the same time, says Ingela Grundelsgården at MSB.

the Stockholm Fire Department announced in a press release that “Hesa Fredrik” Important message to the public, will be upgraded in April and May. The fire update the technology in the warning signal of some 300 typhoon units.

Meanwhile, tutorna disabled. The sites affected are the municipalities of Stockholm, Solna, Sundbyberg and Lidingö.

– All this technology will be replaced with new, but it does not take place simultaneously. So silent it will not be, says Ingela Grundelsgården officer at the Swedish Civil Contingencies Agency, MSB.

New Audio

Stockholm area is the last one out to get the new technology in Hesa ​​Fredrik- tutorna. The technique involves tutorna connected digitally via the so-called Rachel system, including the police and emergency services use.

The MSB also phasing out the compressed-air horns that do not pass inspection. Tutorna is then replaced by an electronic version. So far, about 400 of the total 4300 tutorna in Sweden is replaced.

– There will be a little different character to the sound of the electronic variant. The signal is somewhat rougher to break through the noise of traffic, says Håkan Marcusson, systems architect at MSB.

Hesa ​​Fredrik tested every quarter

The signal is usually tested four times a year. The test is done on the first Monday of March, June, September and December.

Information and any important message to the public will still work via radio, television, text messages and voice messages to landlines. Even the emergency number 113 13 and krisinfo.se to function normally.