The system had some shortcomings
the beam produced at the
10 - 12 M wavelengths worked well in the horizontal plane but much
of the energy was reflected off the surface of the land or sea and
caused reflective problems. This meant that altitude estimations
were possible only at intermediate flying heights.
There was a need to develop a system that could identify
incoming low level aircraft. The solution was to use
higher power and a much shorter wavelength of 1.5 M. The new system
was known as 'Chain
Home Low' (CHL). The new units were installed
very quickly all along the south (and then east) coasts. Developments
also included the construction of mobile CHL units that could be
rapidly deployed depending upon varying enemy tactics.
By 1942 some 50 CH / CHL Stations had been constructed and
encircled the whole of the British Isles and were the operational
responsibility of (RAF) 60 Group.
Professor G. E. Bacon
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Professor G. E. Bacon
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Mr S. Ratcliffe |
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Dr G. L. Hutchinson(1)
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Dr G. L. Hutchinson(2)
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Dr G. L. Hutchinson(3)
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