This is a picture I found via Google Images, taken by George Woods, and shows the Marconi 264 that was mounted on the Maintenance Area MSCP.. I believe it was sited to give LATCC improved low-level coverage, possibly before the EGCC HSA 23cm tower was built?
Rumour has it it's short lifespan was due to it's effect on TV/radio reception close to the site? I know the EGCC 264H had the same feature, a short 'buzz' each time the aerial rotated. It even affected the cassette-recorder I had as part of our 'directed studies package', provided by John Dougan
The Sub-Centre ops room was screened with mesh and industrial-grade tin foil, as the beam's passage also affected the Mediator System Displays.