SREM5 23cm radar aerial
I worked at TEE from '79 to '87 when this aerial was installed as part of the Radar Replacement Programme; all on-route primary kit had to be out of the 50cm waveband by 1990. This system was preferred over the Marconi, I think. The actual aerials were constructed by ZMF, Zeppelin Metal Fabrik, at their factory at Friedrichshafen on the Bodensee (Lake Constance). Yes, the guys who built the Hindenburg! HSA stands for Hollandse Signall Aparatt, based at Flyssingen, Holland, who provided the electrics. There were aerials at Pease Pottage (Sussex), LHR, Debden (Essex), Isle of Tiree (Scotland), and I'm sure there was another one further north, or maybe Mount Gabriel or Bishop's Court (NI). Quite interesting times!