Hi everybody!
Because it's soooo many months to EF22, but we're all totally giddy about its theme, I'm going to try something - post a bit of period video content and a little factoid about EF's host city once in a while!
So tune in your sets and adjust your antenna to VHF (and sorry, if you live in East Germany or are a member of the French Occupying Forces, this will be in black and white only):
Still with us? Good!
Today's video is a 12-minute flight over Berlin in 1978 (yeaah, I cheated, but come on, it'll be worth it) with an appropriately snarky commentary and many facts and figures by a local woman for those of you who speak German. The rest can enjoy the pictures from yesteryear.
----> https://www.youtube.com/watch?v=C0HahjjY9Dk <----Now for the "Life in the 1980s" factoid - around the 1:16 mark in the video you can see one of the transmission towers for the West Berlin radio link to West Germany.
As the old phone lines naturally ran through East Germany (and could be severed at any time), in the late 1940s a transmission link was set up between West Berlin and several mountaintops at the Eastern border of West Germany.
With the available technology of the time using direct line-of-sight operation, these towers would have needed to be at least 340 metres in height, but instead a (back then, totally new) system was developed where the radio waves were bounced off the lower layers of the atmosphere, using a system originally developed for police radios.
Still, owing to the strong winds, the antenna towers were built thrice as strong as normal radio masts - I came near
the one at Torfhaus in the Harz mountains (pictured above) in the early 90s when I was a wee little teenager, and those 18-metre dishes were enormous. Each of those antennas was able to carry approximately 960 simultaneous telephone calls between West Germany and West Berlin, which isn't a whole lot for a city of more than 2 million if you think about it... and of course, East Germany was eavesdropping.
The system was about to be made obsolete by new satellite technology when the Wall came down, and the Berlin towers have since been torn down. The tower in the Harz is now used as a regular FM radio transmitter and has lost its parabolic dishes.
That's it for this time! There'll be new fun stuff to look at and interesting 1980s things whenever I can be bothered, so probably once a month at best or the like.