| 
 The external aerial of a radio receiver 
 
 | 1 – a mast of the aerial, 2 – the isolating basis with the antenna amplifier,
 3 – the antenna wire connecting the aerial with the panel of devices,
 | 4 – the antenna wire connecting the panel of devices with a radio receiver, 5 – a nut,
 6 – consolidation
 |  The prevention
  The nut is connected by 5 plastic ring to a ridge washer. At installation of a ridge washer put on an interfaced surface of a roof electrowire paste.   The aerial is established on a roof together with the amplifier located in the basis of the aerial.
 The standard aerial of a radio receiver established on cars, is protected from a radio noise.   For reduction of hindrances to radio reception additional protection on following units is established:   – The fan of a radiator, – The electric motor of a cleaner of a windscreen,
 – The electric motor of a cleaner of back glass.
  For reduction of a radio noise connection of units of the car with a body in strictly certain points is used.   |