Power Supply
All plants associated with power supply, such as high-voltage power lines and transformer stations, are regarded as LF radiation sources; transmission equipment on high-voltage masts can be HF radiation sources.
Power Supply Plants - Measurement Tasks
Measure and record field strengths to establish proof of emission levels to customers and authorities.
Frequency range
16 2/3 Hz (railroad), 50 Hz, 60 Hz
Transmission installation on HF masts / towers - Measurement Tasks
For transmission equipment on masts / towers, personal monitors are recommended.
Frequency Range
30 MHz ... 5 GHz
Power Supply Plants - Measurement Tasks
Prove safety for personnel, magnetic fields can interfere with safety or IT plants and systems.
Frequency Range
16 2/3 Hz, 50 Hz, 60 Hz, 400 Hz (ships, aircraft)
Communication Systems - Measurement Tasks
The railway's own communication systems have to be certified with appropriate HF measurement technology and checked regularly.
Frequency Range
30 MHz ... 3 GHz
Recommended Equipment
Broadband : EHP-50C, EHP-200, NBM 550, NBM 520
Narrowband : SRM 3000
RF Monitors : Nardalert A8861 or C8861 Radman 2251/72
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