In 1951 the Telecommunications Research Establishment (TRE) began experimenting with new low-noise crystal detectors that improved reception by 10 dB, and new cavity magnetrons of roughly 1 MW power. Combining these together on a lashed-up antenna system from the war-era AMES Type 14, produced a test unit known as "Green Garlic". Although somewhat shorter-ranged than MEW, all that was required to complete development was a new antenna and its physical mounting system. It filled most of the MEW requirements but would be available years earlier.
