Post
by Albert H » Sat Jul 20, 2019 2:56 am
Not much. Most stations put their aerials on the highest point, which was the top of the lift tower, which was separate from the domestic part.
There is another, better sited block of the same design in the Harrow Road (Trellick Tower), and I used that one as early as the late 70s.
Adjacent to the lift motor room, there was a caged area with lots of PMR Pye rigs screwed to the wall, with their aerial leads running through metal conduits up to the towers overhead. Someone constructed a rig inside a redundant Pye Europa case, and screwed it to the wall amidst all the others. The aerial coaxes (link receive on 207 MHz and transmit on 90.4MHz at 120 Watts) ran up a metal conduit. The new conduit was made to look dirty and old like the others up there and that rig was used every Sunday for about 2½ years! The transmit aerial was a J-pole right up at the top of one of the towers, above all the other gear, and there were never any problems with the other users of that "Facilities Site".
"Why is my rig humming?"
"Because it doesn't know the words!" 