RECCO

RECCO is a Swedish rescue-technology brand focused on helping organized search-and-rescue teams locate people who are buried by avalanches or lost in outdoor environments. Its system has two linked components: a small, passive reflector worn by the person being searched for and a detector operated by trained rescuers. The reflector requires no battery, switch, registration, or user activation. When a detector’s directional radar signal reaches the reflector, the reflector returns a harmonic response that produces an audible signal for the rescuer, helping indicate the direction and approximate location of the person. The technology originated in the personal experience of Magnus Granhed, who encountered a fatal avalanche accident in Åre, Sweden, in 1973. From the winter of 1978–1979, Granhed worked with Bengt Enander’s team at the Department of Electromagnetic Theory at Stockholm’s Royal Institute of Technology to develop a practical avalanche-search system based on harmonic radar. Granhed established RECCO AB in 1983 and produced the first functional prototype. A significant early demonstration came in 1987, when a woman in Lenzerheide, Switzerland, was located from a helicopter using RECCO technology. This event helped establish the concept as a tool that could extend beyond conventional ground-based searching. The reflector is a lightweight passive transponder containing a diode and antenna. Reference material describes it as measuring approximately 13 by 51 by 1.5 millimeters and weighing about four grams. RECCO recommends that two reflectors placed in different parts of a person’s clothing or equipment provide an advantageous configuration. More than 150 outdoor brands have incorporated reflectors into products such as ski boots, helmets, hiking footwear, jackets, trousers, and backpacks. The integration model makes the technology available without requiring the wearer to carry or operate a separate electronic device. Professional rescuers use handheld RECCO detectors at avalanche sites and in other outdoor searches. The R9 detector, introduced in 2009, is described as weighing approximately 900 grams and having a search range of up to 80 meters through air and up to 20 meters through compacted snow, subject to conditions including snow depth and composition. RECCO equipment is intended as an additional search method rather than a replacement for avalanche transceivers or organized rescue procedures. More than 700 rescue groups worldwide, particularly those serving ski areas, have used the system according to the cited reference material. In 2015, RECCO expanded its search capability with the RECCO SAR Helicopter detector. The airborne system is designed for professional teams searching for missing people over broad outdoor areas. It can operate from around 100 meters above ground and cover an area approximately 100 meters wide, provided the missing person is carrying or wearing a compatible reflector. The company’s technology has also been used in wildlife research, including efforts to track tropical amphibians such as frogs, and was tested for tracking ground beetles during the early 2000s. RECCO’s positioning is therefore centered on passive, maintenance-free location technology for organized rescue. Its principal value is that the reflector does not depend on batteries or activation at the moment of an accident. At the same time, the system has defined limitations: it depends on the person having a reflector, requires trained rescuers and specialized detectors, and is intended to complement rather than replace established avalanche-safety equipment and rescue practices.

RECCO’s development is rooted in an avalanche accident experienced by Magnus Granhed in Åre, Sweden, in 1973. The event led him to pursue a way of locating avalanche victims electronically, with the aim of supporting organized rescue teams after a person had been buried or otherwise become difficult to find. The concept that emerged was different from a conventional active transmitter: instead of requiring the person at risk to carry a powered device and operate it correctly, the RECCO approach used a passive reflector that could be built into clothing or equipment and interrogated by a detector carried by rescuers. Beginning in the winter of 1978–1979, Granhed collaborated with Bengt Enander’s team at the Department of Electromagnetic Theory at the Royal Institute of Technology in Stockholm. Their work applied harmonic-radar principles to avalanche rescue. The system’s reflector contains an antenna and diode. A detector transmits a directional signal, and the diode produces a response at twice the original frequency. The detector interprets the return as an audible signal, allowing a trained operator to determine the direction in which the reflector lies. Granhed formed RECCO AB in 1983 and developed the first functional prototype. An important early field success occurred in 1987 in Lenzerheide, Switzerland, where a woman was localized from a helicopter using RECCO technology. The rescue demonstrated the potential of combining the reflector with an airborne detector and showed that the system could be useful when a search area was difficult to cover on foot. The technology subsequently developed into a two-part ecosystem. Reflectors were designed for integration into ski and outdoor products, while professional rescue organizations adopted handheld detectors for use in avalanche terrain. The reflector is passive and lightweight, does not need a battery, and does not need to be manually activated. Outdoor manufacturers incorporated the component into products including ski boots, helmets, hiking shoes, jackets, pants, and backpacks. The reference material states that more than 150 brands have used integrated RECCO reflectors. RECCO’s handheld detector line expanded the practical use of the system in ski areas and other mountain environments. The R9 detector, introduced in 2009, was specified at approximately 900 grams. Depending on environmental conditions, its stated range reached up to 80 meters through air and up to 20 meters through packed snow. The system was adopted as an additional electronic search method by professional rescue teams, particularly in avalanche-prone ski resorts. It was not presented as a substitute for avalanche transceivers, trained companions, or formal rescue procedures. In 2015, RECCO introduced the SAR Helicopter detector to address searches beyond avalanche burial scenarios. The system was designed for professional search-and-rescue teams looking for missing people in open terrain. Its operating concept remained the same: an airborne detector sends a radar signal and searches for the harmonic response from a reflector worn by the missing person. Reference material describes a search height of approximately 100 meters and a search corridor about 100 meters wide. The technology has also been used outside human rescue. Researchers have applied RECCO equipment to tracking amphibians, especially tropical frogs, because a small reflector can be carried by an animal while researchers search for it in its natural habitat. RECCO equipment was also tested for tracking ground beetles between 2000 and 2004. The system’s history illustrates a consistent technical and commercial model: the company develops detectors for professional users while distributing reflectors through outdoor-product manufacturers. Its principal advantage is passive operation, but its usefulness depends on prior integration of a reflector, access to trained rescue personnel, and availability of compatible detection equipment. The technology is consequently positioned as a supplementary rescue resource rather than a complete personal-safety system.

• 2015

  SAR Helicopter detector introduced

  [1]RECCOen.wikipedia.org

  RECCO expanded into large-area outdoor searches with a helicopter-mounted detector intended for professional search-and-rescue teams.

• 2009

  R9 detector introduced

  [1]RECCOen.wikipedia.org

  RECCO introduced the R9 handheld detector for professional search operations in avalanche and outdoor environments.

• 2000

  Wildlife-tracking applications tested

  [1]RECCOen.wikipedia.org

  RECCO equipment was tested between 2000 and 2004 for tracking ground beetles, and the technology was also applied to research on amphibians.

• 1987

  First reported live rescue using RECCO

  [1]RECCOen.wikipedia.org

  A woman in Lenzerheide, Switzerland, was localized from a helicopter using RECCO technology.

• 1983

  RECCO AB is formed

  [1]RECCOen.wikipedia.org

  Magnus Granhed established RECCO AB and created the first functional prototype of the rescue technology.

• 1978

  Research collaboration begins

  [1]RECCOen.wikipedia.org

  Starting in the winter of 1978–1979, Granhed worked with Bengt Enander’s team at the Royal Institute of Technology in Stockholm on a harmonic-radar rescue system.

• 1973

  Avalanche experience prompts the concept

  [1]RECCOen.wikipedia.org

  Magnus Granhed’s experience of a fatal avalanche accident in Åre, Sweden, motivated the search for an electronic method of locating avalanche victims.

A passive, maintenance-free rescue-location technology supplied through outdoor equipment and used by trained professional search-and-rescue teams as an additional tool for avalanche and wilderness searches.

• Passive rescue transponder

  RECCO reflector

  The RECCO reflector is a small passive transponder designed to be integrated into outdoor clothing and equipment. It contains a diode and antenna and does not require batteries, a power switch, or activation by the wearer. When struck by a compatible detector’s directional radar signal, it returns a harmonic response that can be heard by the trained rescuer. Reflectors have been incorporated into ski boots, helmets, hiking footwear, jackets, pants, and backpacks. The reference material gives approximate dimensions of 13 by 51 by 1.5 millimeters and a weight of four grams.

• Search-and-rescue detector

  RECCO handheld detector

  Handheld RECCO detectors are used by organized rescue teams on avalanche sites and in other outdoor searches. The detector transmits a highly directional radar signal and listens for the harmonic response returned by a reflector. A rescuer uses the direction and strength of the audible signal to narrow the search. The equipment is intended as an additional search method alongside avalanche transceivers and established rescue procedures, rather than as a consumer device operated independently by the person at risk.

• Handheld search-and-rescue detector · 2009

  R9 detector

  Introduced in 2009, the R9 is a handheld RECCO detector for professional rescue operations. Reference material describes a weight of approximately 900 grams and a potential detection range of up to 80 meters through air or up to 20 meters through packed snow, although actual performance depends on snow conditions, depth, orientation, and other environmental factors.

• Airborne search-and-rescue detector · 2015

  RECCO SAR Helicopter detector

  The RECCO SAR Helicopter detector is designed for professional teams conducting broad-area searches for missing people in outdoor environments. Mounted on a helicopter, it sends a directional radar signal toward the ground and detects the harmonic response from a compatible reflector. The cited reference describes operation from a height of approximately 100 meters and a search area about 100 meters wide. Its effectiveness depends on the missing person carrying or wearing a RECCO reflector.

• 2015

  Expansion into helicopter-supported outdoor searchesProduct launch

  Background

  RECCO’s earlier use was strongly associated with avalanche rescue and handheld detection. The company sought to extend the same reflector-and-harmonic-radar principle to missing-person searches over larger outdoor areas.

  Action taken

  RECCO introduced the SAR Helicopter detector for professional search-and-rescue teams.

  Aftermath

  The product broadened the technology’s stated application from avalanche sites to open-terrain searches, while retaining the requirement that the missing person be equipped with a RECCO reflector.

  Source

1. 1RECCOen.wikipedia.org