The newer of the two masts of Horgenzell Mediumwave Transmitter is used as main antenna. It is as mentioned insulated against ground and guyed in 2 levels. Its guys are just insulated to the mast and not divided by insulators, which is most common for masts insulated against ground, in order to prevent the flow of radio frequency current through the guys, which reduce antenna effiency and distort the radiation diagram.
This task is done at this mast by coils near the guy basements, over which the guys are grounded.
The advantage of guys grounded by coils respect to guys divided by insulators is that no static charges occur, which require especially at tall masts large insulators and their bridging with overvoltage arrestors, which are difficult to maintain.
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