Aerial photography - Ancient Gallery

The technique of stacking has been dealt with at interminable length elsewhere on this site. Let’s just say that it can increase gain and directivity. Antiference were great ‘stackers’ in the 60s and 70s, probably because J Beam were doing so well with the MBM range. This photograph shows a pair of horizontally polarised stacked TC18s, channel group B. These are not the very early TC18s with the downward hanging balun, but their immediate successor, dating from the early 70s. It wasn’t long before Antiference made another change, and the reflector bar became 'V’ shaped. This example has a genuine Antiference stacking kit, consisting of a coax harness and the necessary ironmongery . . . or should that be aluminium-mongery?

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