work on docs

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Andreas Eversberg
2017-12-05 20:36:11 +01:00
parent 1ef1b93776
commit 3ab5a3f6a9
5 changed files with 17 additions and 13 deletions

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<p>
A-Netz was the first mobile telephone network in Germany.
It existed between 1985 and 1977.
It existed between 1958 and 1977.
The first mobile units were huge and heavy and consisted of radio tubes.
Only big cars could carry these units in their trunk.
It used full duplex radio link.