Renseignements généraux

Nº de série

508124

Nº de partie

2

Nombre total de parties

2

Ou

S/O

Brevets

S/O

Description générale

Synthetic

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

19,8 cm

Largeur

3,7 cm

Hauteur

1,8 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Météorologie

Catégorie

Mesure de montant, taux et durée de précipitation

Sous-catégorie

S/O

Fabricant

Ou

Lawtronics

Pays

United States of America

État/province

New York

Ville

Buffalo

Contexte

Pays

Canada

État/province

Colombie-Britannique

Période

ca. 1971-1975

Canada

Taken from acquisition proposal, Reference 1: This beacon, operating at the frequency of 2.275 kHz is made in the USA, and also called the “hot dog” due to its shape. It represents the first use of the first successful and commercially (American made) produced avalanche beacon in Canada – used by staff working for the British Columbia Dept. of Highways and Communications in avalanche risk zones. Recognizing the dangers of working and recreating in avalanche risk zones, the use and requirement for wearing rescue beacons quickly became recognized and accepted by several industries. The avalanche probe and shovel make up the other two safety device in use today.

Fonction

An avalanche rescue beacon (radio transceiver), is a radio transmitter-receiver device used to detect people buried in snow. This analog device broadcasts a pulsed signal as an audible tone which is picked up by users with other beacons and heard wearing the supplied earphone.

Technique

Taken from acquisition proposal, Reference 1: This may be the first successful and commercially produced avalanche beacon. The invention of the first practical avalanche beacon is owed to a research team led by Dr. John Lawton at Cornell Aeronautical Laboratory in Buffalo, New York who, influenced by avalanche expert Ed Lachappelle in 1968 developed the Skadi. Used to detect people buried in snow, this analog device broadcasts a pulsed signal as an audible tone and picked up by other beacons. It went into production in 1971 and quickly became a standard used by ski patrollers and people travelling in avalanche prone environments. In Europe, the first avalanche rescue beacon was commissioned by the Swiss Army in 1968 and developed by the Autophon company. Using the newly introduced European standard frequency of 457 kHz, development of the Barryvox VS68 took almost 2 years and soon thereafter found civilian use. The standard of 457kHz was adopted in 1986 by the International Commission on Alpine Rescue (IKAR), in 1996 by the American Society for Testing and Materials (ASTM), and also by the American National Standards Institute (ANSI).

Notes sur la région

Inconnu

Détails

Marques

Black print inside lid "LAWTRONICS, INC./ 326 WALTON, BUFFALO, N.Y. 14226, U.S.A./ WHEN TRAVELLING ALWAYS CARRY SKADI ON TRANSMIT/ SEARCH: ALL SKADIS ON RECEIVE, VOLUME LOUDEST,/ ORIENT FOR MAXIMUM SIGNAL./ TO PINPOINT LOCATION BEFORE YOU DIG USE MINI-/MUM VOLUME & BRACKETING TECHNIQUE./ CHARGE SKADI OVERNIGHT!/ AFTER EVERY USE- OTHERWISE ONCE PER WEEK./ STORE IN A COOL DRY PLACE./ READS YOUR INSTRUCTION MANUAL".

Manque

S/O

Fini

Beige synthetic lid. Exterior has a pitted finish. Black print inside lid.

Décoration

S/O