Chain Home Lowとは 意味・読み方・使い方

Chain Home Low (CHL) was the name of a British radar early warning system, detecting enemy aircraft movement at lower altitudes than and summarily used with the fixed Chain Home system which was operated by the RAF during World War II. Officially, its designation name was AMES Type 2 (Air Ministry Experimental Station) and used higher power, operating at a shorter wavelength of 1.5 metres than Chain Home. Such systems could be mobile in which units were placed on trucks and could be strategically moved based on enemy movement, giving the RAF a wider option where and when they would engage or not engage the enemy. It was based on CD (Coastal Defence) and CA (Coastal Artillery) radar which were able to detect low-flying aircraft, leading to the development of CHL for the RAF.